老托福听力93篇(33-34)-Today I want to talk about

老托福听力93篇(35-36)-Last week we talked about 35Last week we talked about Anne Bradstreet and the role of women in the Puritan colonies. Today I want to talk about some other women who've contributed to American history—some famous and some not-so-famous. The first woman I'd like to talk about is Molly Pitcher. Those of you who are familiar with the name may know her as a hero of the American Revolution. But, in fact, there never was a woman named Molly Pitcher. Her real name was actually Mary Ludwig Hays. She got the nickname Molly Pitcher for her acts of bravery during the Revolutionary War. As the story goes, when Mary's—or Molly's—husband, John Hays, enlisted in the artillery, Mary followed, like many other wives did. She helped out doing washing and cooking for the soldiers. She was known to be a pretty unusual woman. She smoked a pipe and chewed tobacco. Anyway, in the summer of 1778, at the Battle of Monmouth, it was a blistering hot day, maybe over a hundred degrees, and fifty soldiers died of thirst during the battle. Molly wasn't content to stay back at camp. Instead, she ran through gunshots and cannon fire carrying water in pitchers from a small stream out to the thirsty American soldiers. The relief that she brought with her pitchers of water gave her the legendary nickname Molly Pitcher. The story also says that she continued to load and fire her husband's cannon after he was wounded. They say she was so well liked by the other soldiers that they call her "Sergeant Molly." In fact, legend has it that George Washington himself gave her the special military title.【生词摘录】1. Puritan: adj. 清教徒的2. nickname: n. [C]绰号，昵称3. bravery: n. [U]勇敢4. enlist: v. 征募，应募，参军5. artillery: n. 炮兵部队6. chew tobacco: 嚼烟草7. blistering: adj. 酷热的8. gunshot: n. [C]枪击9. cannon: n. [C]大炮10. pitcher: n. [C]罐壶，(带柄和倾口的)大水罐36Today we're going to talk about shyness and discuss recent research on ways to help children learn to interact socially. Many people consider themselves shy. In fact, forty percent of people who took part in our survey said they were shy. That’s two out of every five people. And there are studies to indicate that the tendency toward shyness may be inherited. But just because certain children are timid, doesn't mean they are doomed to be shy forever. There are things parents, teachers, and the children themselves can do to overcome this tendency and even to prevent it. One researcher found that if parents gently push their shy children to try new things, they can help these children become less afraid and less inhibited. Another way to help shy children is to train them in social skills. For example, there are special training groups where children are taught things like looking at other children while talking to them, talking about other people's interests, and even smiling. These groups have been very successful at giving shy children a place to feel safe and accepted, and at building up their self-esteem.【生词摘录】1. shyness: n.[U]羞怯, 胆怯2. timid: adj. 胆小的, 羞怯的3. doomed: adj. 命定的4. inhibited: adj. 羞怯的, 内向的5. self-esteem: n. 自尊。

智课网TOEFL备考资料老托福听力93篇 PartC(文本+音频)精选摘要：老托福是练习托福的最好的材料，相信备考的考生都是在用这个，今天小编就为大家准备老托福听力93篇 PartC(文本+音频)精选内容，大家如果想要的话，就赶紧来看看吧。

今天小编为大家带来老托福听力93篇 PartC(文本+音频)精选内容，各位考生可以点击相关按钮进行下载哦，希望各位考生赶紧来看看吧。

Most people think of astronomers as people who spend their time in cold observatories peering through telescopes every night. In fact, a typical astronomer spends most of his or her time analyzing data and may only be at the telescope a few weeks of the year. Some astronomers work on purely theoretical problems and never use a telescope at all. You might not know how rarely images are viewed directly through telescopes. The most common way to observe the skies is to photograph them. The process is very simple. First, a photographic plate is coated with a light-sensitive material. The plate is positioned so that the image received by the telescope is recorded on it. Then the image can be developed, enlarged, and published so that many people can study it. Because most astronomical objects are very remote, the light we receive from them is rather feeble. But by using a telescope as a camera, long time exposures can be made. In this way, objects can be photographed that are a hundred times too faint to be seen by just looking through a telescope.【生词摘录】1. observatory: n.[C]a special building from which scientists watch the moon, stars, weather etc 天文台;观象台;气象台2. peer: v. to look very carefully or hard, especially because you are having difficulty in seeing (尤指因看起来费劲而)凝视，盯着看3. theoretical: adj. of, relating to, or based on theory 理论的4. photographic: adj. connected with photographs, using photographs, or used in producing photographs 摄影的，摄影用的5. plate: n. [C]technical a thin sheet of glass used especially in the past in photography, with chemicals on it that are sensitive to light 【术语】(尤指过去摄影用的)感光片6. coat: v. to cover something, especially food, with a thin layer of liquid or another substance 给(某物，尤指食物)涂上(覆盖上)一层…7. light-sensitive: adj. sensitive to visible light 光敏的8. position: v. to put something in a particular position 把(某物)放在(某个位置)，安置9. feeble: adj. extremely weak 极其虚弱的，非常无力的以上就是小编为大家带来的老托福听力 93篇 PartC(文本+音频)精选的部分内容，各位考生想要练好听力就全靠他了，下面我们就一起来看看吧。

老托福Part C 听写30篇文稿________________________________________1. This morning I want to tell you about a recent scientific discovery dealing with the relationship between plants and animals. This is about a desert shrub whose leaves can shoot a stream of poisonous resin a distance of six feet. You think it would be safe from all attacks by insects? But a recent study has found one insect, a beetle that can chew its way past the plant's defense system by cutting the main vein that delivers the poison to the leaves. This vein cutting is just one method the beetles used to prepare a safe meal. Another is by cutting a path all the way across the leaves to hold the flow of chemicals. Then they simply eat between the veins of poison. In the past, scientists who studied insect adaptation to plant defenses have focused on chemical responses, that is, how the insects can neutralize or alter the poisonous substances plants produce. What's unique about this chewing strategy is that the beetle is actually exhibiting a behavioral response to the plant's defenses rather than the more common chemical response. It is only after a beetle's survived several encounters with the plant's resin that it learns how to avoid the poison: by chewing through the resin transporting veins on the next leaf it eats, and thus gives itself a safe meal. However, it can take a beetle an hour and a half of careful vein cutting to prepare a small leaf that takes it only a few minutes to eat. So, though the method is effective, it's not very efficient.生词摘录：1. shrub: n. 灌木2. resin: n. 树脂3. beetle: n. 甲壳虫4. vein: n. 静脉5. neutralize: v. 中和6. alter: v. 改变________________________________________2. Human populations near the equator have evolved dark skin over many generations because of exposure to the fiercest rays of the sun. A similar phenomenon has also occurred in other parts of the animal kingdom. The African grass mouse is a good example. Most mice are nocturnal, but the African grass mouse is active during daylight hours. This means that it spends its days searching for food in the semi-dry bush in scrubby habitats of eastern and southern Africa. Its furry stripe's like a chipmunk's, which helps it blend in with its environment. Because it spends a lot of time in the intense tropical sun, the grass mouse has also evolved two separate safeguards against the sun's ultraviolet radiation. First, like the population of humans in this region of the world, the skin of the grass mouse contains lots of melanin, or dark pigment. Second and quite unusual, this mouse has a layer of melanin-pigmented tissue between its skull and skin. This unique cap provides an extra measure of protection for the grass mouse and three other types of African mouse, like rodents that are active during the day. The only other species scientists has identified with the same sort of skull adaptation is the white tent-making bat of the Central American tropics. Although these bats sleep during the day, they do so curled up with their heads exposed to the sun.生词摘录：1.equator: n. 赤道2.nocturnal: adj. 夜行的3.scrubby: adj. 树丛繁盛的4.stripe: n. 条纹5.chipmunk: n. 花栗鼠6.ultraviolet: adj. 紫外线的7.melanin: n. 黑色素8.pigment: n. 色素9.rodent: n. 啮齿类动物10.skull: n. 头骨________________________________________3. We've been looking at fear from a biological perspective, and someone asked whether the tendency to be fearful is genetic. What some studies done with mice indicate that mammals do inherit fearfulness to some degree. In one study, for instance, a group of mice was placed in a brightly lit open box with no hiding places. Some of the mice wandered around the box and didn't appear to be bothered about being so exposed. But other mice didn't move. They stayed up against one wall which indicated that they were afraid. Well, when fearful mice, or you might say anxious mice like the ones who stayed in one place, when mice like these were bred with one another repeatedly, after about twelve or so generations, then all of the offspring showed similar signs of fearfulness. And even when a new born mouse from this generation was raised by a mother and with other mice who were not fearful, that mouse still tended to be fearful as an adult. Now why is this? Well it's thought that specific genes in an animal's body have an influence on anxious behavior. These are genes that are associated with particular nerve-cell receptors in the brain. And the degree of overall of fearfulness in the mammal seems to depend in large part on the presence or absence of these nerve-cell receptors. And this appears to apply to humans as well by the way. But while a tendency towards anxiety and fear may well be an inherited trait, the specific form that the fear takes has more to do with the individual's environment. So a particular fear, like the fear of snakes or the fear of spider, say, is not genetic, but the overall tendency to have fearful responses, is. 生词摘录：1. genetic: adj. 遗传的2. offspring: n. 子孙，后代3. receptor: n. 接受器________________________________________4. Let's turn our focus now to advertising. We all know what an advertisement is. It's essentially a message that announces something for sale. Now there's an important precondition that must exist before you have advertising, and that's a large supply of consumer goods, that is, things to sell. You see in a place where the demand for a product is greater than the supply, there is no need to advertise. Now the earliest forms of advertising going back many hundreds of years with a simple sign over shop doors that told you whether the shop was a bakery, a butcher shop or what have you. Then with the advent of printing press, advertising increased substantially. Ads for products like coffee, tea and chocolate appeared in newspapers and other periodicals, as well as on the sides of building. In the American colonies, advertising and communications media like newspapers and pamphlets became a major factor in marketing goods and services. By modern standards, these early advertisements were quite small and subdued, not as splashy, whole page spread of today. Still some of them appeared on the front pages of newspapers probably because the news often consisted of less refresh reports from distant Europe while the ads were current and local. Advertising really came and do it so and became an essential part of doing business during the industrial revolution. Suddenly there was a much greater supply of things to sell. And as we said earlier, that is the driving force behind advertising. People's attention had to be drawn to the new product. Let's take a look at some of the advertisements from that time.生词摘录：1. essentially: adv. 本质上，本来2. precondition: n. 先决条件3. bakery: n. 面包店4. butcher: n. 屠户5. periodical: n. 期刊6. pamphlet: n. 小册子7. subdued: adj. 被抑制的8. splashy: adj. 大而显眼的，引人注目的________________________________________5. Moving away from newspapers, let's now focus on magazines. Now, the first magazine was a little periodical called The Review, and it was started in London in 1704. It looked a lot like the newspapers of the time. But in terms of its content, it was much different. Newspapers were concerned mainly with news events, but The Review focused on important domestic issues of the day as well as the policies of the government. Now in England at the time, people could still be thrown in jail for publishing articles that were critical of the king. And that's what happened to Daniel Defoe. He was the outspoken founder of The Review. Defoe actually wrote the first issue of The Review from prison. You see, he had been arrested because of his writings that criticized the policies of the Church of England, which was headed by the king. After his release, Defoe continued to produce The Review and magazine started to appear on a more frequent schedule, about three times a week, it didn't take long for other magazines to start popping up. In 1709, a magazine called The Tatler began publication. This new magazine contained a mixture of news, poetry, political analysis, and philosophical essays.生词摘录：1. periodical: n. 期刊2. The Review: 《评论》杂志3. Daniel Defoe: 丹尼尔·笛福(1660 -1731)，生于伦敦一小工商业者家庭，1731年4月26日卒于莫尔福德。

老托福听力93篇(45-46)-So, why did what is now 45So, why did what is now called "modern dance" begin in the United States? To begin to answer this question, I'll need to backtrack a little bit and talk about classical ballet. By the late 1800's, ballet had lost a lot of its popularity. Most of the ballet dancers who performed in the United States were brought over from Europe. They performed using the rigid techniques that had been passed down through the centuries. Audiences and dancers in the United States were eager for their own, "contemporary" dance form. And, so, around 1900, dancers created one. So, how was this "modern" dance so different from classical ballet? Well, most notably, it wasn't carefully choreographed. Instead, the dance depended on the improvisation and free, personal expression of the dancers. Music and scenery were of little importance to the "modern" dance, and lightness of movement wasn't important either. In fact, modern dancers made no attempt at all to conceal the effort involved in a dance step. But even if improvisation appealed to audiences, many dance critics were less than enthusiastic about the performances. They questioned the artistic integrity of dancers who were not professionally trained and the artistic value of works that had no formal structure. Loie Fuller, after performing Fire Dance, was described as doing little more than turning "round and round like an eggbeater." Yet, the free, personal expression of the pioneer dancers is the basis of the "controlled freedom" of modern dance today.【生词摘录】1. backtrack: v. (由原路)返回，后退2. ballet: n. [C]芭蕾舞3. rigid: adj. 严格的4. contemporary: adj. 当代的5. choreograph: v. 设计舞蹈动作，精心编排6. improvisation: n. 即席创作7. scenery: n. 舞台布景8. lightness: n. 轻盈，灵活9. conceal: v. 隐藏10. eggbeater: n. [C]打蛋器11. pioneer: adj. 先驱，创始人12. controlled freedom: 克制的自由46Today I want to discuss fossil fuels such as coal, oil, and natural gas. The term "fossil fuel" refers to the trapped remains of plants and animals in sedimentary rock. You see, living plants trap energy from the sun by the process of photosynthesis, and they store the energy in their chemical compounds. Most of that energy is released when the plant dies and decays. However, sometimes organic matter is buried before it decays completely. In this way some of the solar energy becomes trapped in rocks, hence the name fossil fuel. Although the amount of organic matter trapped in any one growing season is small, the accumulated remains from millions of years are considerable. Because the accumulation rate is so slow, millions of times slower than the rate at which we now dig up this organic matter andburn it for energy, we must consider fossil fuels as nonrenewable resources. Tomorrow we'll be discussing alternatives to fossil fuels that can be renewed.【生词摘录】1. fossil fuel: 化石燃料2. trapped: adj. 捕集的，捕获的3. remains: n. [C]残留4. sedimentary: adj. 沉积的5. photosynthesis: n. [U]光合作用6. decay: v. 腐烂7. considerable: adj. 相当多的，相当可观的8. nonrenewable: adj. 不可再生的9. alternative: n. 二中选一，可供选择的事物。

老托福听力93篇（93）-So,yousee老托福听力93篇(93)-So, you see93So, you see, physical illness can have psychological causes. Now, we just have time to introduce another interesting example of the interaction between the mind and the body, placebos. Placebos—maybe you've heard them called sugar pills—are harmless substances, not always sugar, that are used routinely on groups of sick people in experiments. These experiments test the effectiveness of new drugs. One group is given the new drug, the other group is given a placebo, and the results are measured. As you might guess, some of the people who receive the new drug get better. Surprisingly, however, some of the placebo group also get better. Why? Well, it's an interesting question, one which doctors can't quite answer. Some of the group may have gotten better on their own, without any treatment at all, but research has shown that the very act of taking a medication that you think will make you better, often does make you feel better. Have you ever taken an aspirin and felt better in five minutes? Aspirin doesn't work that fast, does it? Basically, if you believe you will get better, sometimes you do. The history of how doctors and healers have used the mind-body connection to cure people is long and interesting, but I see that it's time to close, so I'll have to cover this in the next class. You'll have to hold your questions on this topic till then. Before you go, I have some handouts for you concerning the midterm exams next week.【生词摘录】1. interaction: n. [C]相互作用，相互影响2. placebo: n. [C]安慰剂3. routinely: adv. 日常地，定期地，常规地4. act: n. [C]过程，行为5. medication: n. [C]药物治疗6. aspirin: n. [C]阿司匹林7. healer: n. [C]治疗者8. cover: v. 涉及，包含9. handout: n. [C]小册子，传单，讲义10. concerning: prep. 关于。

智课网TOEFL备考资料老托福听力93篇(31-32)-Current studies show摘要：老托福听力93篇(31-32)-Current studies show。

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31Current studies show that what goes on labels is an important consideration for manufacturers, since more than seventy percent of shoppers read food labels when considering whether to buy a product. A recent controversy as to whether labels on prepared foods should educate or merely inform the consumer is over, and a consumer group got its way. The group had maintained that product labels should do more than simply list how many grams of nutrients afood contains. Their contention was that labels should also list the percentage of a day's total nutrients that theproduct will supply to the consumer, because this information is essential in planning a healthy diet. A government agency disagreed strongly, favoring a label that merely informs the consumer, in other words, a label that only lists the contents of the products. The agency maintained that consumers could decide for themselves if the food is nutritious and is meeting their daily needs. The consumer group, in supporting its case, had cited a survey in which shoppers were shown a food label, and were then asked if they would need more or less of a certain nutrient after eating a serving of this product. The shoppers weren't able to answer the questions easily when they were not given a specific percentage. This study, and others helped get the new regulation passed, and now food products must have the more detailed labels.【生词摘录】1. label: n. [C]a piece of paper or other material that is stuck onto something and gives information about it 标签，标记2. consideration: n. [U]formal careful thought and attention【正式】斟酌，考虑3. manufacturer: n. [C]a company or industry that makes large quantities of goods 制造商;制造公司，制造厂4. gram: n. [C]the basic unit for measuring weight in the metric system 克(公制基本重量单位)5. nutrient: n. [C]a chemical or food that provides what is needed for plants or animals to live and grow 养分;营养物，营养品6. contention: n. [U]formal argument and disagreement between people【正式】争论，争端;口角7. favor: v. to think that a plan, idea etc is better than other plans, ideas etc 赞同，支持(计划、想法等)8. maintain: v. to strongly express your belief that something is true 断言(某事)属实;坚持说…9. nutritious: adj. food that is nutritious is full of the natural substances that your body needs to stay healthy or to grow properly(食物)有营养的，滋养的，营养价值高的10. cite: v. to mention something as an example, especially one that supports, proves, or explains an idea or situation (尤指为支持、证明或解释一种观点或情况而)引证，援引11. regulation: n. an official rule or order 规则;条例;法令32Good afternoon. I'm here today to talk to you about a career with our airline. We're especially interested in recruiting people to fill openings for flight attendants. First of all, to work as a flight attendant with us, you must be accepted into our training program and with so many people applying, it's not easy to be selected. From the thousands of applications that we receive annually, we choose fewer than a thousand people for training. So, we require experience serving the public; and it also helps if you've earned some college credits. Also, not everybody who gets accepted into the training program makes it through. The course meets six days a week for five weeks. The training includes extensive classroom work in such subjects as first aid and passenger psychology as well as practical training in flight procedures and meal service. A lot of our graduates say that our flight attendants develop the skills of a nurse, a headwaiter, and a public relations executive! But, as a flight attendant myself, I can say that all of the hard work is worth it. Of course, I get to travel throughout the country, and the airline pays all of my expenses while I'm away from my base station. And, what I like best of all is that I've made friends with people from all over the country!【生词摘录】1. airline: n. [C]a business that runs a regular service to take passengers and goods to different places by plane 航空公司2. recruit: v. to find new people to work in a company, join an organization, do a job etc 招聘，吸收(新成员)3. opening: n. [C]a job or position that is available 空缺(职位)，空额4. attendant: n. [C]someone whose job is to look after or help customers in a public service 服务员5. extensive: adj. containing or dealing with a lot of information and details 广泛的，全面的6. procedure: n.[C]the correct or normal way of doing something(正确的或通常做事的)步骤，手续7. graduate: n. [C]AmE someone who has completed a course at a college, school etc 【美】毕业生8. headwaiter: n. [C]the waiter who is in charge of the other waiters in a restaurant (餐馆的)服务员领班9. executive: n. [C]someone who has an important job as a manager in a company or business(公司或商业机构中的)主管，行政领导，经理推荐新闻:老托福听力93篇(25-26)-In today's class老托福听力93篇(27-28)-It seems like老托福听力93篇(29-30)-Today's lecture 相关字搜索：老托福听力93篇音频。

老托福听力93篇（33-34）-TodayIwanttotalkabout老托福听力93篇(33-34)-T oday I want to talk about33Today I want to talk about the Earth's last major climatic shift, at the end of the last ice age. But first, let's back up a moment and review what we know about climatic change in general. First, we defined "climate" as consistent patterns of weather over significant periods of time. In general, changes in climate occur when the energy balance of the Earth is disturbed. Solar energy enters the Earth's atmosphere as light and is radiated by the Earth's surface as heat. Land, water, and ice each affect this energy exchange differently. The system is so complex that, to date, our best computer models are only crude approximations and are not sophisticated enough to test hypotheses about the causes of climatic change. Of course, that doesn't keep us from speculating. For instance, volcanic activity is one mechanism that might affect climatic change. When large volcanoes erupt, they disperse tons of particles into the upper atmosphere, where the particles then reflect light. Since less light is entering the system of energy exchange, the result would be a cooling of the Earth's surface. Of course, this is just one possible mechanism of global climate change. In all probability, a complete explanation would involve several different mechanisms operating at the same time.【生词摘录】1. climatic: adj. connected with the weather in a particular area 气候的2. ice age: one of the long periods of time, thousands of years ago, when ice covered many northern countries 冰川期，冰河时代3. consistent: adj. always having the same beliefs, behavior, attitudes, quality etc(信仰、行为、态度、品质等)一贯的，一致的;始终如一的4. disturb: v. to interrupt someone so that they cannot continue what they are doing by asking a question, making a noise etc 干扰，打扰;使中断5. radiate: v. if something radiates light or heat, or if light or heat radiates from something, it is sent out in all directions 辐射(光或热);(向四面八方)发射6. crude: adj. not developed to a high standard or made with great skill 粗制的7. approximation: n. [C]a number, amount etc that is not exact, but is almost correct 概算，近似值8. hypothesis: n. [C]plural hypotheses, an idea that is suggested as a possible way of explaining a situation, proving and idea etc, which has not yet been shown to be true 假设，假说9. speculate: v. to think or talk about the possible causes or effects of something without knowing all the facts or details 猜测，推测10. disperse: v. if something disperses or is dispersed, it spreads over a wide area(使)消散;(使)分散11. cooling: n.[U]the process of becoming cooler; a falling temperature 冷却34I know you're anxious to get your permits and get started. But there're just a few things I'd like to mention that might help you avoid trouble during your stay. First of all, make sure you carry adequate water. You'll need it if you're hiking, especially in this heat. A good rule of thumb is to bring one gallon per personper day this time of year. Don't try to rely on the park's natural springs to supply all your water needs. And please, do not use soap in the springs. It's your responsibility to protect the park's natural features. For those of you staying beyond the weekend, make sure that you set up camp well away from dry creekbeds. We may get some heavy rainfall, and those creekbeds could quicklybecome filled with water, and you and all your equipment might end up washed downstream. When you pick up your permits, you'll also get a park services booklet. It'll tell you everything you need to know about the hiking trails. They vary in length, of course, but most of them are under five miles—relatively easy day hikes. Remember, if you're hiking solo, make sure you let someone know you're going and when they can expect you back. And . . . uh, for your own safety, we recommend that you not climb rock faces. A lot of the rock throughout the park is very unstable. One final word: watch out for poisonous snakes. Rattlesnake activity is at its peak this time of year, especially at night. For your own good, we recommend wearing protective clothing and carry a flashlight after dark.【生词摘录】1. hike: v. to walk a long way in the mountains or countryside 徒步旅行，远足2. rule of thumb: a rough method of calculation, based on practical experience(根据实际经验的)粗略的计算方法3. gallon: n. [C]a unit for measuring liquids, equal to 3.785 litres 加仑(等于3.785升)4. feature: n. [C]a part of something that you notice because it seems important, interesting, or typical 特点，特征，特色5. creekbed: n. [C]6. downstream: adv. in the direction the water in a river or stream is flowing 顺流而下;向下游方向7. booklet: n. [C]a very short book that usually contains information 小册子8. trail: n. [C]小径9. solo: adv. 单独地10. unstable: adj. 不牢固的, 不稳定的11. rattlesnake: n. [C]响尾蛇12. flashlight: n. [C]手电筒。

智课网TOEFL备考资料老托福听力93篇下载(文本+翻译)摘要：老托福听力93篇下载(文本+翻译)!托福听力要想拿到高分，必然就要勤加苦练。

其实听力方面真的没有特别的技巧，因此大家考试回归到苦练上吧，接下来就让我们练习老托福听力93篇吧!老托福听力93篇是练习听力的常见资料，利用老托福真题的练习，可以让大家更加清晰的了解托福听力考试，更加熟悉的了解托福听力的题型等等。

老托福听力93篇生词预习：1. stylized: adj. drawn or written in an artificial style, that does not include natural detail(绘画或写作)程式化的2. realism: n.[U]the style of art and literature in which everything is shown or described as it really is in life 现实主义，写实主义(艺术、文学上的风格)3. portrait: n.[C]a painting, drawing, or photograph of a person(人的)画像;照片;肖像[+of]4. imitate: v. to copy something because you think it is good(认为是好的因而)仿效(某物)5. static: adj. not moving, changing, or developing, especially when movement or change would be good 不动的;不变化的;不发展的;静(止)的6. formalism: n.[U]a style or method in art, religion, or science that pays too much attention to established rules(艺术、宗教或科学的)形式主义...扫码安装小马 APP，免费在线练习老托福听力93篇老托福听力93篇文本：Before we begin our tour, I'd like to give you some background information on the painter Grant Wood. We’ll be seeing much of his work today. Wood was born in 1881 in Iowa farm country, and became interested in art very early in life. Although he studied art in both Minneapolis and at the Art Institute of Chicago, the strongest influences on his art were European. He spent time in both Germany and France and his study there helped shape his own stylized form of realism. When he returned to Iowa, Wood applied the stylistic realism he had learned in Europe to the rural life he saw around him and that he remembered from his childhood around the turn of the century. His portraits of farm families imitate the static formalism of photographs of early settlers posed in front of their homes. His paintings of farmers at work, and of their tools and animals, demonstrate a serious respect for the life of the Midwestern United States. By the 1930's, Wood was a leading figure of the school of art called "American regionalism." In an effort to sustain a strong Midwestern artistic movement, Wood established an institute of Midwestern art in his home state. Although the institute failed, the paintings you are about to see preserve Wood's vision of pioneer farmers....以上就是整理的“老托福听力93篇下载(文本+翻译)”，希望通过这些听力真题的练习，能够帮助大家更好的来备考托福考试 !相关字搜索：老托福听力93篇。

老托福听力93篇（27-28）第一篇：老托福听力93篇(27-28)老托福听力93篇(27-28)-It seems like only yesterdayIt seems like only yesterday that I was sitting where you are, just finishing my first year of medical school and wondering if I'd ever get a chance to use all my new knowledge on a real live patient!Well, I have good news for you!You don't have to wait until your third or fourth year of medical school to get some hands-on experience!The dean has invited me here to tell you about the university's rural opportunity program.If you enroll in this program, you can have the opportunity this summer, after your first year of medical school, to spend from four to six weeks observing and assisting a real physician like me in a small rural community.You won't have to compete with other students for time and attention, and you can see what life as a country doctor is really like.The program was designed to encourage medical students like yourselves to consider careers in rural communities that are still understaffed.It seems that medical students are afraid to go into rural family practice for two reasons.First, they don't know much about it.And second, specialists in the cities usually make more money.But, on the up-side, in rural practice, doctors can really get to know their patients and be respected members of the community.I participated in the program when it first started and spent six weeks in a small rural town.Let me tell you, it was really great!I got to work with real patients.I watched the birth of a child, assisted an accident victim, and had lots of really practical hands-on experience—all in one summer.And to my surprise, I found that country life has a lot to offer that city life doesn't—no pollution or traffic jams, forinstance!My experience made me want to work where I'm needed and appreciated.I don't miss the city at all!【生词摘录】1.live: adj.not dead or artificial;living 活的;非人造的;有生命的2.hands-on: adj.providing practical experience of something by letting people do it themselves 实际操作的，亲身实践的3.enroll: v.to officially arrange to join a school, university or course, or arrange for someone else to 招(生)，吸收(成员);注册(学习)4.physician: n.[C]AmE formal a doctor 【美，正式】(内科)医生5.understaffed: adj.not having enough workers, or fewer workers than usual 人员(配备)不足的，人手不够的6.up-side: n.especially AmE the positive part of a situation that is generally bad【尤美】(不利局面中)好的一面，积极面7.victim: n.[C]someone who has been attacked, robbed, or murdered 受害者;牺牲者8.jam: n.[C]a situation in which it is difficult or impossible to move because there are so many people, things, cars etc close together 拥挤;堵塞9.appreciate: v.to understand how good or useful someone or something is 欣赏;赏识;鉴赏In the few minutes that remain of today's class, I'd like to discuss next week's schedule with you.Because I'm presenting a paper at a conference in Detroit on Thursday, I won't be here for either Wednesday's or Friday's class.I will, however, be here for Monday's.Next Friday, a week from today, is the midterm exam, marking the halfway point in the semester.Professor Andrews has agreed to administer the exam.In place of the usual Wednesday class, I've arranged an optional review session.Since it is optional, attendance will not be taken;however, attending the class wouldbe a good idea for those worried about the midterm.So, remember: optional class next Wednesday;midterm, Friday.【生词摘录】1.Detroit: the largest city in Michigan and a major Great Lakes port;center of the United States automobile industry;located in southeastern Michigan on the Detroit river across from Windsor 底特律2.administer: v.to organize the way a test or punishment is given, or the way laws are used 执行，实施3.optional: adj.if something is optional, you do not have to do it or use it, but you can choose to if you want to 可选择的，非强制的4.attendance: n.[C,U]the number of times that you go to a meeting, class etc that is held regularly 出席率，到场次数第二篇：老托福听力101-1501.Which of the following best describes the fact?A.Mary waits and lets Gail prepare dinnerB.Gail always helps prepare dinnerC.Gail does not let Mary help prepare dinnerD.Mary always prepares dinner alone2.What did the man want to do?A.The man arrested JaneB.The man threatened to call the policeC.The man didn’t want Jane to leaveD.The man promised to leave at once3.What do we know about Mr.Smith?A.Mr.Smith didn’t come yesterdayB.Mr.Smith came yesterdayC.Mr.Smith was busy yesterdayD.Mr.Smith was not dependable4.When did the class start?A.The class started at 11:30B.The class started at 12:00C.The class started at 12:30D.The class started at 1:005.Which of the following is true?A.Sally is a nurseB.The baby’s name is SallyC.The baby is girlD.Sally is a mother6.What is true about Mike?A.Mike didn’t finish schoolB.Mike went to school,then to workC.Mike would rather work than go to schoolD.Mike always finished his work7.What did the speaker want?A.He wanted saladB.He wanted a spoonC.He wanted sugarD.He wanted a fork8.What does the speaker mean?A.The policeman probably told Tom how to find the churchB.The policeman probably didn’t know how to find the churchC.Tom probably never found the churchD.Tom probably never asked the policeman9.What do we know about Jim?A.Jim had his car keyB.Jim was still in his houseC.Jim’s house key was in his pocketD.Jim lost his car10.Which of the following is true?A.George wanted to go,but his wife wanted to stayB.George wanted to stay,but his wife wanted to goC.Both of them were determined to goD.Both of them were determined to stay11.What does the speaker mean?A.The outside should be cleaned with a damp clothB.The exterior should be moistened before cleaningC.The moist cloth should be cleaned before wipingD.The outside should be cleaned before moistening12.Which of the following is true?A.I don’t enjoy talking with Mr.jonesB.I’m not planning to talk with Mr.jonesC.I expect to be talking with Mr.Jones soonD.I haven’t had to talk wi th Mr.Jones very often13.What does the speaker mean?A.I often leave before the play is overB.I travel less than Joe doesC.I see the plays after Joe sees themD.I go to the theater,but not so often as Joe14.How many volleyball players are there in the team?A.96B.25C.150D.1615.How much is it for three pairs of these end tables?A.$85B.$150C.$170D.$45016.What does the speaker mean?A.Tom wanted a tennis racketB.Tom did not play basketballC.A tennis racket came as Tom’s birthday giftD.Tom wanted a basketball or a tennis racket17.Which of the following is true?A.She amuses herself easilyB.She is never left aloneC.She is left without any problemD.She has a problem staying amused18.How is the business now?A.Business is better now than ever beforeB.Business is prosperousC.Business is never slowD.Business is not as good as it used to be19.How many birds are left now?A.FourB.EightC.TwoD.None20.What happened to the woman?A.She had a headache suddenlyB.She never has headachesC.She had broken the typewriterD.Buying a typewriter gave the woman a headache21.What does the speaker mean?A.Mary likes to be unfriendlyB.Mary waved when she saw youC.Mary did not wave because she did not see youD.You should have waved at Mary22.What does the speaker usually do?A.He doesn’t lock his bike outsideB.He usually leaves his bike outsideC.He locks his bike outside and it is his habitD.His bike has no locks23.Which of the is true?A.I used Frank’s car with his permissionB.Louise lent Fra nk’s car to me without his knowledgeC.Louise lent her car to me and I gave it to FrankD.I lent Louise Frank’s car24.What do we know about the girl and her bike?A.The girl screamed and kicked her friendB.The bicycle screamed at the small girlC.The sma ll girl’s bike fell on her and she screamedD.The girl screamed and kicked her bike25.What does the speaker mean?A.Nancy has Paul’s scarf onB.Nancy is wearing a knit scarfC.Paul has a knit scarfD.Paul never wears the knit scarf that Nancy made him26.What is Mary doing?A.She is looking for her paint brushesB.She is looking for some empty cansC.She is painting the cansD.She is emptying a couple of cans27.Which of the following is true?A.Bob criticized his father’s plans for a new office buildingB.Bob was unhappy when his father criticized his plans for a new office buildingC.Bob and his father criticized the plans for a new office buildingD.Bob’s father criticized him in his new office28.What does the speaker mean?A.It’s bad to go outsideB.I t’s bad you don’t have an umbrellaC.If it didn’t rain,you would have been happierD.All of the rain should not bother you29.What do we know about the accountant?A.The accountant is poorB.The accountant has got enough senseC.The accountant’s judgment i s not reliableD.The accountant can be trusted30.Why is Betty late?A.Because she doesn’t like her jobB.Because she takes her son to the nurseryC.Because her son is illD.The speaker doesn’t tell us31.What does the speaker mean?A.Bill gulped his drinkB.Bill enjoys his food a great dealC.Bill didn’t enjoy his drinkD.Bill savored the taste of his drink32.Which is more difficult for the speaker to play?A.ChessB.VolleyballC.FootballD.Basketball33.Which is more difficult for the speaker to play?A.She wants him to take up smokingB.She wants him to cut down on his smokingC.She wants him to give up smokingD.She wants him to look into smoking34.What happened to the speaker’s car?A.It was badly damagedB.It fell into a riverC.It left the road and stopped in a fieldD.The speaker doesn’t tell us35.What does the speaker think of Kenny?A.She thinks Kenny’s independentB.She thinks Kenny’s selfishC.She thinks Kenny’s intelligentD.She thinks Kenny’s generous36.How did the speaker train the dog?A.Punish the dogB.Pick the dog upC.Reward the dogD.Ignore the dog37.Which of the following is true?A.He neither speakers,understands,nor know how to write JapaneseB.While he speakers and understands Janpanese,he isn’t able to write itC.He’s not able to speak or understand Japanese,but he knows how to write itD.Although he can’t speak or understand Janpanese,he can write it38.How is the speaker feeling?A.SickB.HappyC.BetterD.FIne39.What does the woman mean?A.She said she wanted to go to the moviesB.She said she’d rather go to the movies tomorrow nightC.She said she didn’t want to go to the moviesD.She said she went to the movies with Joe40.Which of the following is true?A.I didn’t know where you lived,so I didn’t visit youB.I couldn’t f ind your dressC.I had no idea you were visitingD.I came to see you,but you weren’t at home41.What do you know about the President’s speech?A.What do you think provoked the President?B.The President was thinking aloudC.Don’t you think the speech was s timulatingD.The speech angered the press42.What does the speaker mean?A.You shouldn’t be that busy nowB.You’ve had a lot to do recentlyC.Did you expect to be so busyD.How have you been doing recently43.What do we know about Jack?A.Jack’s way was mo re funB.Jack was quite pleasantC.Jack wasn’t pleased anywayD.Jack wasn’t at the play44.Which of the following is correct?A.I have never met Sara’s friendsB.I’m a friendlier person than SaraC.Sara has never been friendly to meD.Sara is the friendliest person I know45.Which of the following is true?A.There’s trash collection everydayB.The litter gets worse everydayC.Lee picks up the garbage during the dayD.Lee stops at the garage each day46.What happened to Alice?A.Alice gave the policeman a ticket to a movieB.The officer was all out of tickets that dayC.Alice got a ticket for speedingD.The policeman saw Alice driving47.What does the speaker mean?A.I watched for ten minutesB.It wa 9:30 when I set my watchC.The time is 9:20D.I set my watch thirty minutes ahead48.What does the speaker mean?A.I’ll do it at onceB.I’ll look for it without delayC.I won’t be fooled againD.I’ll talk to him right now49.What happened to Jim?A.Jim hurt his foot when returningB.Jim heard it correctly the second timeC.Jim weighed his peckD.Jim hurt his back50.What does the speaker mean?A.Don’t you need a refill for your pen?B.Your order for a dozen pencils has been filledC.Ben needs another bill from youD.Don’t you want to get your friend a new pen第三篇：老托福听力93篇(87-88)-These days we take 老托福听力93篇(87-88)-These days we takeThese days we take for granted the wide variety of music available on the radio.But, this wasn't always the case.In the early days of radio, stations were capable of broadcasting only a narrow range of sounds, which was all right for the human voice but music didn't sound very good.There was also a great deal of crackling and other static noises that further interfered with the quality of the sound.A man named Edwin Armstrong, who was a music lover, set out to change this.He invented FM radio, a technology that allowed stations to send a broad range of frequencies that greatly improved the quality of the music.Now, you'd think that this would have made him a millionaire;it didn't.Radio stations at that time had invested enormous amounts of money in the old technology.So the last thing they wanted was to invest millions more in the new technology.Nor did they want to have to compete with other radio stations that had a superior sound and could put them out of business.So they pressured the Federal Communications Commission, the department of the United States government that regulates radio stations, to put restrictive regulations on FM radio.The result was that its use was limited to a very small area around New England.Of course as we all know, Edwin Armstrong's FM technology eventually prevailed and was adopted by thousands of stations around the world.But this took years of court battles and he never saw how it came to affect the lives of almost everyone.【生词摘录】1.crackling: n.[C]爆裂声2.static: adj.静电的3.FM: 调频(frequency modulation)4.frequency: n.[C]频率lionaire: n.[C]百万富翁，大富豪6.restrictive: adj.限制性的7.regulation: n.规则，规章8.prevail: v.流行，盛行，获胜，成功9.adopt: v.采用I'm going to talk about a train that exemplifies the rise and fall of passenger trains in the United States: the Twentieth Century Limited.Let me go back just a bit.In 1893, a special train was established to take people from New York to an exposition in Chicago.It was so successful that regular service was then set up between these cities.The inaugural trip of the Twentieth Century Limited was made in 1902.The train was different from what anyone had ever seen before.It was pulled by a steam engine and had five cars: two sleepers, a dining car, an observation car, and a baggage car, which, believe it or not, contained a library.The 42 passengers the train could carry were waited on by a large staff.There were even secretaries and a barber on board.It wasn't long before people had to wait two years to get a reservation.As time passed, technical improvements shortened the trip by a few hours.Perhaps the biggest technological change occurred in 1945, the switch from steam to diesel engines.By the 1960's, people were traveling by car and airplane.Unfortunately, the great old train didn't survive until the end of the century it was named for.【生词摘录】1.exemplify: v.例证，例示，作为……例子2.exposition: n.[C]博览会，展览会3.inaugural: adj.最早的，开始的4.sleeper: n.[C](火车等的)卧铺5.observation car: n.[C](火车的)游览车厢(有特大车窗或透明车顶)，了望车6.baggage: n.[C]行李7.wait on: 服侍，招待8.barber: n.[C]理发师9.reservation: n.[C]预订，预约10.switch: n.[C]转变11.diesel: n.[C]柴油机第四篇：托福听力策略小结托福听力策略小结1.在快速浏览时获取信息。

TOEFL学习资料听力09(6)39. Why does the woman collect coins?40. Why were letters VDB on pennies?41. What was one of reasons the speaker collected coins as a teenager?42. What will the speaker do next?Question 43-46 Listen to talk from a biology classToday I want to talk to you about wasps and their nests. You'll recall the biologist divide species of wasps into two groups: solitary and social. Solitary wasps as the name implies do not live together with other wasps. In most species the male and female get together only to mate and then the female does all the work of building the nest and providing the food for the offspring by herself. Solitary wasps usually make nests in the ground and they separate the chambers for the individual offspring with bits of grass, stone or mud, whatever is handy. What about social wasps? They form a community and work together to build and maintain the nest. A nest begins in the spring when the fertile female called the queen builds the first few compartments in the nest and lay eggs. The first offspring are females but cannot lay eggs. These females called workers. They build a lot of new compartments and the queen lays more eggs. They also care for the new offspring and defend the nest with their stingers. By the way only the female wasps have stingers. Most social wasps make nest of paper. The female produces the paper by chewing up plant fibers or old wood. They spread the papers in thin layers to make cells, in which the queen lays her eggs. Most of you I'm sure have seen these nests suspended from trees. They may also be built under the ground in abandoned rodent burrows.43. Who build the nest of solitary wasps?44. Why the female wasps are more dangers to people than the mal wasps are?45. What is the main function of the queen?46. What are the nests of social wasps made of?Question 47-50 Listen to a talk in class about United States historyOne of the most popular myths about the United States in the 19th Century was that of the free and simple life of the farmer. It was said that the farmers worked hard on their own land to produce whatever their families' needed. They might sometimes trade with their neighbors, but in general they could get along just fine by relying on themselves, not on commercial ties with others. This is how Thomas Jefferson idealized the farmer at the beginning of the 19th century. And at that time, this may have been close to the truth especially on the frontier. But by the mid century sweeping changer in agriculture were well under way as farmers began to specialize in the raising of crops such as cotton or corn or wheat. By late in the century revolutionary advances in farm machinery has vastly increased production of specialized crops and extensive network of railroads had linked farmers throughout the country to markets in the east and even overseas. By raising and selling specialized crops, farmers could afford more and finer goods and achieved a much higher standard of living but at a price. Now farmers were no longer dependent just on the weather and their own efforts, their lives were increasing controlled by banks,which had powder to grant or deny loans for new machinery, and by the railroads which set the rates for shipping their crops to market. As businessmen, farmers now had to worry about national economic depressions and the influence of world supply and demand on, for example, the price of wheat in Kansas. And so by the end of the 19th century, the era of Jefferson's independent farmer had come to a close.【。

老托福听力Part C 93篇集锦(文本+词汇)智课网整理Community service is an important component of education here at our university. We encourage all students to volunteer for at least one community activity before they graduate. A new community program called "One On One" helps elementary students who've fallen behind. You education majors might be especially interested in it because it offers the opportunity to do some teaching—that is, tutoring in math and English. You'd have to volunteer two hours a week for one semester. You can choose to help a child with math, English, or both. Half-hour lessons are fine, so you could do a half hour of each subject two days a week. Professor Dodge will act as a mentor to the tutors—he'll be available to help you with lesson plans or to offer suggestions for activities. He has office hours every Tuesday and Thursday afternoon. You can sign up for the program with him and begin the tutoring next week. I'm sure you'll enjoy this community service and you'll gain valuable experience at the same time. It looks good on your resume, too, showing that you've had experience with children and that you care about your community. If you'd like to sign up, or if you have any questions, stop by Professor Dodge's office this week.【生词摘录】ponent: n.［C］one of several parts that together make up a wholemachine or system （机器或系统的）零件；成分；组成部分2.tutor: n. ［C］someone who teaches one pupil or a small group, and isdirectly paid by them 家庭教师，私人教师v. to teach someone as a tutor 给…当家庭教师；指导3.mentor: n. ［C］an experienced person who advises and helps a lessexperienced person 顾问，指导人，教练2I hope you've all finished reading the assigned chapter on insurance so that you're prepared for our discussion today. But, before we start, I'd like to mention a few things your text doesn't go into. It's interesting to note that insurance has existed in some form for a very long time. The earliest insurance policies were what we called bottomry contracts. They provided shipping protection for merchants as far back as 3000 B.C. In general, the contracts were often no more than verbal agreements. They granted loans to merchants with the understanding that if a particular shipment of goods was lost at sea, the loan didn't have to be repaid. Interest on the loans varied according to how risky it was to transport the goods. During periods of heavy piracy at sea, for example, the amount of interest and the cost of the policy went up considerably. So, you can see how insurance helped encourage international trade. Even the most cautious merchants became willing to risk shipping their goods over long distances, not to mention in hazardous weather conditions when they had this kind of protection available. Generally speaking, the basic form of an insurance policy has been pretty much the same since the Middle Ages. There are four points that were salient then and remain paramount in all policies today. These were outlined in chapter six and will serve as the basis for the rest of today's discussion. Can anyone tell me what one of those points might be? 【生词摘录】1.insurance: n. ［U］an arrangement with a company in which you pay themmoney each year and they pay the costs if anything bad happens to you, such as an illness or an accident 保险；the money that you pay regularly to an insurance company 保险费；the business of providing insurance 保险业2.bottomry: n. 船舶抵押契约（如船舶损失，则债务取消），冒险借贷3.contract: n. ［C］a formal written agreement between two or more people,which says what each person must do for the other 契约；合同4.loan: n. ［C］an amount of money that you borrow from a bank etc （银行等的）贷款5.understanding: n. ［C usually singular］a private, unofficial agreement（私底下、非正式的）协议，协定6.interest: n. ［U］a charge made for borrowing money（借贷的）利息［+on］7.piracy: n. the crime of attacking and stealing from ships at sea 海上抢劫，海盗行为8.cautious: adj. careful to avoid danger or risks 小心的，谨慎的，慎重的9.hazardous: adj. 危险的10.s alient: adj. formal the salient points or features of something are the mostimportant or most noticeable parts of it 【正式】显著的，突出的11.p aramount: adj. more important than anything else 至高无上的，最重要的3Located at the NASA Research Center in Iowa is a 5,000-gallon vat of water, and inside the tank is an underwater treadmill designed by Dava Newman, an aerospace engineer. For four years Newman observed scuba divers as they simulated walking on the Moon and on Mars on her underwater moving belt. She wanted to discover how the gravity of the Moon and of Mars would affect human movement. To do this, Newman attached weights to the divers and then lowered them into the tank and onto the treadmill. These weights were carefully adjusted so that the divers could experience underwater the gravity of the Moon and of Mars as they walked on the treadmill. Newman concluded that walking on Mars will probably be easier than walking on the Moon. The Moon has less gravity than Mars does, so at lunar gravity, the divers struggled to keep their balance and walked awkwardly. But at Martian gravity, the divers had greater traction and stability and could easily adjust to a pace of 1.5 miles per hour. As Newman gradually increased the speed of the treadmill, the divers took longer, graceful strides until they comfortably settled into an even quicker pace. Newman also noted that at Martian gravity, the divers needed less oxygen. The data Newman collected will help in the future design of Martian space suits. Compared to lunar space suits, Martian space suits will require smaller air tanks; and, to allow for freer movement, the elbow and knee areas of the space suits will also be altered.【生词摘录】1.gallon: n. AmE a unit for measuring liquids, equal to 3.785 litres 【美】加仑（等于3.785升）2.vat: n. ［C］a very large container for storing liquids such as whisky or dye,when they are being made（酿酒、盛染料用的）大缸，大桶3.tank: n. ［C］a large container for storing liquid or gas（盛放液体或气体的）大容器4.treadmill: n. ［C］a mill worked in the past by prisoners treading on stepsfixed to a very large wheel（过去用以惩罚犯人的）踏车5.aerospace: adj. involving the designing and building of aircraft and spacevehicles 航空和航天（器制造）的n.［U］the industry that designs and builds aircraft and space vehicles 航空和航天工业，航天工业6.scuba diving: n. ［U］the sport of swimming under water while breathingthrough a tube connected to a container of air on your back 斯库巴潜泳，水肺潜泳（戴自携式潜水呼吸器潜泳）7.simulate: v. to make or produce something that is not real but has theappearance of being real 模仿，模拟8.Martian: adj. of or relating to the planet Mars 火星的9.stride: n. ［C］a long step 大步，阔步10.e lbow: n. ［C］the joint where your arms bends 肘Dava NewmanProfessor of Aeronautics and Astronautics and Engineering Systems Director of Technology and Policy ProgramMac Vicar Faculty Fellow4Welcome to Everglades National Park. The Everglades is a watery plain covered with saw grass that's home to numerous species of plants and wildlife. At one and a half million acres, it's too big to see it all today, but this tour will offer you a good sampling. Our tour bus will stop first at Taylor Slough. This is a good place to start because it's home to many of the plants and animals typically associated with the Everglades. You'll see many exotic birds and, of course, our world famous alligators. Don't worry, there's a boardwalk that goes across the marsh, so you can look down at the animals in the water from a safe distance. The boardwalk is high enough to give you a great view of the saw grass prairie. From there we'll head to some other marshy and even jungle like areas that feature wonderful tropical plant life. For those of you who'd like a closer view of the saw grass prairie, you might consider renting a canoe sometime during your visit here. However, don't do this unless you have a very good sense of direction and can negotiate your way through tall grass. We'd hate to have to come looking for you. You have the good fortune of being here in the winter—the best time of year to visit. During the spring and summer, the mosquitoes will just about eat you alive! Right now they're not so bothersome, but you'll still want to use an insect repellent.【生词摘录】1.Everglades National Park: 大沼泽地国家公园2.saw grass: 克拉莎草；加州砖子苗3.acre: n. ［C］a unit for measuring area, equal to 4,047 square metres 英亩4.sampling: n. items selected at random from a population and used to testhypotheses about the population 取样，抽样，采样5.exotic: adj. approving seeming unusual and exciting because of beingconnected with a foreign country 【褒义】异国风情的，外国情调的：exotic birds 外国的奇异鸟类6.alligator: n. ［C］a large animal with a long mouth and sharp teeth that liesin the hot wet parts of the US and China 短吻鳄7.boardwalk: n. ［C］AmE a raised path made of wood, usually built next tothe sea【美】（常在海滨）用木板铺成的小道8.prairie: n. ［C］a wide open area of land in North America which is coveredin grass or wheat（北美洲的）大草原9.canoe: n. ［C］a long light boat that is pointed at both ends and which youmove along using a paddle 独木舟，小划子10.n egotiate: v. <口> 成功通过，顺利越过11.m osquito: n. ［C］a small flying insect that sucks the blood of people andanimals 蚊子12.r epellent: n. ［C,U］a substance that keeps insects away 驱虫剂5Thank you. It's great to see so many of you interested in this series on "Survival in Outer Space." Please excuse the cameras; we're being videotaped for the local TV stations. Tonight I'm going to talk about the most basic aspect of survival—the space suit. When most of you imagine an astronaut, that's probably the first thing that comes to mind, right? Well, without space suits, it would not be possible for us to survive in space. For example, outer space is a vacuum—there's no gravity or air pressure; without protection, a body would explode. What's more, we'd cook in the sun or freeze in the shade with temperatures ranging from a toasty 300 degrees above to a cool 300 degrees below zero Fahrenheit. The space suit that NASA has developed is truly a marvel. This photo enlargement here is a life-size image of an actual space suit worn by astronauts on the last space shuttle mission. This part is the torso. It’s made of seven extremely durable layers. This thick insulation protects against temperature extremes and radiation. Next is what they call a "bladder" of oxygen that's an inflatable sac, filled with oxygen, to simulate atmospheric pressure. This bladder presses against the body with the same force as the Earth's atmosphere at sea level. The innermost layers provide liquid cooling and ventilation. Despite all the layers, the suit is flexible, allowing free movement so we can work. Another really sophisticated part of the space suit is the helmet. I brought one along to show you. Can I have a volunteer come and demonstrate?【生词摘录】1.videotape: v. to record a television programme, film etc on a videotape 把（电视节目、电影等）录在录像（磁）带上2.vacuum: n. ［C］a space that is completely empty of all gas, especially onefrom which all the air has been taken away 真空3.shade: n. ［U］slight darkness or shelter from the direct light of the sunmade by something blocking it 荫，背阴处4.toasty: adj. AmE informal warm and comfortable 【美，非正式】暖烘烘的，温暖舒适的5.Fahrenheit: n. ［U］a scale of temperature in which water freezes at 32°and boils at 212°华氏温度6.marvel: n. ［C］something or someone surprisingly useful or skillful, thatyou like and admire very much 十分有用（灵巧）的物（人）7.enlargement: n. ［C］a photograph that has been printed again in a largersize 放大的照片8.life-size: 又作life-sized，adj. a picture or model of something or someonethat is life-size is the same size as they are in real life 与实物（真人）大小一样的9.shuttle: n. ［C］a spacecraft that can fly into space and return to Earth, andcan be used more than once （可以多次使用的）航天飞机，太空穿梭机10.m ission: n. ［C］an important job done by a member of the airforce, armyetc, especially an attack on the enemy 任务，使命11.t orso: n. ［C］your body, not including your head, arms, or legs （头和四肢除外的）人体躯干12.d urable: adj. staying in good condition for a long time even if used a lot 耐用的13.i nsulation: n. ［U］material used to insulate something, especially a building（尤指建筑物的）绝缘材料；the act of insulating something or the state of being insulated 隔绝14.e xtreme: n. ［C］something that goes beyond normal limits, so that it seemsvery unusual and unacceptable 极端15.b ladder: n. ［C］a bag of skin, leather, or rubber, for example inside afootball, that can be filled with air or liquid （可充气或充水的）囊；袋16.i nflatable: adj. an inflatable object has to be filled with air before you canuse it 须充气方可使用的，（需）充气的17.s ac: n. technical a part inside a plant or animal that is shaped like a bag andcontains liquid or air 【术语】（动物或植物的）囊；液囊18.i nnermost: adj. formal furthest inside 【正式】最里面的19.v entilation: n. ［U］通风（ventilate: v. to let fresh air into a room, buildingetc 使通风）20.h elmet: n. ［C］a strong hard hat worn for protection by soldiers, motorcycleriders, the police etc 头盔，钢盔，安全帽21.d emonstrate: v. to show or prove something clearly 证明，论证，证实；toshow or describe how something works or is done 示范，演示；to march through the streets with a large group of people in order to publicly protest about something （为公开抗议某事）游行，示威；to show that you have a particular skill, quality, or ability 展示，表露出（某种技能、品质或能力）6Good evening. My name is Pam Jones, and on behalf of the Modern Dance club, I'd like to welcome you to tonight's program. The club is pleased to present the TV version of The Catherine Wheel, Twyla Tharp's rock ballet. This video version of the ballet has been even more successful with audiences than the original theater production. It includes some animation, slow motion, and stop-action freezes that really help the audience understand the dance. The title of the piece refers to Saint Catherine, who died on a wheel in 307 A.D. Nowadays, a Catherine wheel is also a kind of firework. It looks something like a pinwheel. Anyway, the dance is certainly full of fireworks! You'll see how Twyla Tharp explores one family's attempt to confront the violence in modern life. The central symbol of the work is a pineapple, but exactly what it represents has always created a lot of controversy. As you watch, see if you can figure it out. The music for this piece is full of the rhythmic energy of rock music. It was composed by David Byrne. Of the rock band Talking Heads? And the lead dancer in this version was Sara Rudner, who is perfectly suited to Tharp's adventurous choreography. Following the video, dance teacher Mary Parker will lead a discussion about the symbolism Ms. Tharp used. We hope you can stay for that. So, enjoy tonight's video and thank you for your support. 【生词摘录】1.present: v. to give a performance in a theatre, cinema, etc, or broadcast aprogramme on television or radio 上演；演出；表演；播出（电视或广播节目）2.ballet: n. ［C］a performance in which a special style of dancing and musictell a story without any speaking 芭蕾舞剧；芭蕾舞曲3.animation: n. ［U］the process of making animated films 动物片的制作4.wheel: n. ［C］one of the round things under a car, bus, bicycle etc that turnwhen it moves （汽车、公共汽车、自行车等的）车轮5.firework: n. ［C usually plural］a small container filled with powder thatburns or explodes to produce coloured lights, noise, and smoke 烟火，烟花，焰火6.pinwheel: n. ［C］a toy consisting of a stick with curved pieces of plastic atthe end that turn around when they are blown 玩具风车（windmill, BrE）7.pineapple: n. ［C,U］a large yellow-brown tropical fruit or its sweet juicyyellow flesh 菠萝，凤梨8.controversy: n. ［C,U］a serious argument or disagreement, especiallyabout something such as a plan or decision, that continues for a long time 争论；辩论；争议9.rhythmic: 又作rhythmical, adj. having rhythm 有节奏的10.a dventurous: adj. 又作adventuresome, AmE【美】eager to go to newplaces and do exciting or dangerous things 喜欢冒险的，有冒险精神的；notafraid of taking risks or trying new things 敢作敢为的，大胆创新的11.c horeography: n. ［U］the art of arranging how dancers should move duringa performance 编舞（艺术）；舞蹈设计12.s ymbolism: n. ［U］the use of symbols to represent something 象征主义（手法）7In our lab today, we'll be testing the hypothesis that babies can count as early as five months of age. The six babies here are all less than six months old. You'll be watching them on closed circuit TV and measuring their responses. The experiment is based on the well-established observation that babies stare longer if they don't see what they expect to see. First, we're going to let two dolls move slowly in front of the babies. The babies will see the two dolls disappear behind a screen. Your job is to record, in seconds, how long the babies stare at the dolls when the screen is removed. In the next stage, two dolls will again move in front of the babies and disappear. But then a third doll will follow. When the screen is removed, the babies will only see two dolls. If we're right, the babies will now stare longer because they expect three dolls but only see two. It seems remarkable to think that such young children can count. My own research has convinced me that they have this ability from birth. But whether they do or not, perhaps we should raise another question. Should we take advantage of this ability by teaching children mathematics at such a young age? They have great untapped potential, but is it good for parents to pressure young children?【生词摘录】1.hypothesis: n. plural hypotheses,［C］an idea that is suggested as a possibleway of explaining a situation, proving an idea etc, which has not yet been shown to be true 假设，假说2.closed circuit television (TV): a system in which cameras send picturesto television sets that is used in many public buildings to protect them from crime 闭路电视3.well-established: adj. established for a long time and respected 历史悠久且享有盛誉的4.untapped: adj. an untapped resource, market etc has not yet been used（资源、市场等）未开发的；未利用的8Before starting our tour of Monticello, I'd like to give you some historical facts that might help you appreciate what you see today even more. Monticello was the very much loved home of Thomas Jefferson for over fifty years. Jefferson, who was, of course, President, was also a great reader and language enthusiast. He read widely on different subjects, including architecture. He wasn't formally trained in architecture, but as a result of his study and observation of other buildings, he was able to help design and build the house. He chose the site himself, naming the estate "Monticello," which means "little mountain" in Italian. In fact, many of the ideas behind the design also came from the Italian architect Andrea Palladio, who lived in the sixteenth century and who had a great influence on the architecture of England. Jefferson, however, ignored one of Palladio's principles, that is, not to build in a high place. Monticello's elevation made the transportation of what was needed at the house—for example, food—especially difficult. But the view from the estate would not be as spectacular if Jefferson had followed Palladio's advice; there really is no boundary between the house and the nature around it, and so Jefferson was able to look out on his beloved state of Virginia from his wonderful vantage point. Now we'll go on to Jefferson's library.【生词摘录】1.Monticello: 蒙提切娄2.appreciate: v. to understand how good or useful someone or something is欣赏，赏识，鉴赏3.enthusiast: n. ［C］someone who is very interested in a particular activityor subject 热衷于…的人4.estate: n. ［C］a large area of land in the country, usually with one largehouse on it and one owner （在乡村附有宅地的）一大片私有土地，庄园5.elevation: n. ［singular］a height above the level of the sea 海拔6.spectacular: adj. very impressive and exciting 壮观的，精彩的，引人注目的7.vantage point: a good position from which you can see something （能观察某物的）有利位置9Now that we've all introduced ourselves to the new members, let's get down to work. As the committee in charge of this year's tree-planting project, we have several items on our agenda. First, we have to review the budget. The president has informed me that the trustees have set aside $3,000 for the purchase of trees and our environmental T-shirt sale netted a profit of $1,500. Second, we have to finalize the choice of trees. As you know, we're working with Richardson's Nursery again this year since everyone seemed pleased with the work he did for us last year. Mr. Richardson has presented us with several choices within our price range that he thinks would meet our needs. He's sent us pictures of the trees for us to look at, but he wanted me to tell you that we're welcome to visit the nursery if we want to see the trees themselves. Lastly, we need to plan some kind of ceremony to commemorate the planting. Several ideas, including a garden party of some sort, have been suggested. So let's get on with it and turn to the first order of business.【生词摘录】1.item: n. ［C］a single thing, especially part of a list, group, or set （尤指清单上、一群或一组事物中的）一项；一件；一条2.trustee: n. ［C］a member of a group that controls the money of a company,college, or other organization（公司、学院等的）理事，董事会成员: v. especially AmE to earn a particular amount of money as a profit aftertax has been paid 【尤美】获得净收入，净赚4.finalize: v. to finish the last part of a plan, business deal etc 使（计划、交易等）确定，最后定下5.nursery: n. ［C］a place where plants and trees are grown and sold 苗圃（garden center, BrE）10Welcome to the Four Winds Historical Farm, where traditions of the past are preserved for visitors like you. Today, our master thatchers will begin giving this barn behind me a sturdy thatched roof, able to withstand heavy winds and last up to a hundred years. How do they do it? Well, in a nutshell, thatching involves covering the beams or rafters, the wooden skeleton of a roof with reeds or straw. Our thatchers here have harvested their own natural materials for the job, the bundles of water reeds you see lying over there beside the barn. Thatching is certainly uncommon in the Untied States today. I guess that's why so many of you have come to see this demonstration. But it wasn't always that way. In the seventeenth century, the colonists here thatched their roofs with reeds and straw, just as they had done in England. After a while, though, they began to replace the thatch with wooden shingles because wood was so plentiful. And eventually, other roofing materials like stone, slate, and clay tiles came into use. It's a real shame that most people today don't realize how strong and long lasting a thatched roof is. In Ireland, where thatching is still practiced, the roofs can survive winds of up to one hundred ten miles per hour. That's because straw and reeds are so flexible. They bend but don't break in the wind like other materials can. Another advantage is that the roofs keep the house cool in the summer and warm in the winter. And then, of course, there's the roofs' longevity—the average is sixty years, but they can last up to a hundred. With all these reasons to start thatching roofs again, wouldn't it be wonderful to see this disappearing craft return to popularity?【生词摘录】1.thatcher: n. ［C］someone skilled in making a roof from plant stalks orfoliage 盖屋顶者2.barn: n. ［C］a large farm building for storing crops, or for keeping animalsin 谷仓，粮秣房，仓库，牲口棚；informal a large, plain building 【非正式】空荡荡的大房子3.withstand: v. to be strong enough to remain unharmed by something suchas great heat or cold, great pressure etc 耐得住，承受住（酷热、严寒、高压等）4.in a nutshell: spoken used when you are stating the main facts aboutsomething in a short, clear way 【口】一言以蔽之，简括地说，用一句话概括5.beam: n. ［C］a long heavy piece of wood or metal used in building houses,bridges etc 梁，横梁6.rafter: n. ［C usually plural］one of the large sloping pieces of wood that formthe structure of a roof 椽7.skeleton: n. ［C］the most important parts of something, to which moredetail can be added later 骨架，框架；梗概，纲要8.reed: n. ［C］a type of tall plant like grass that grows in wet places 芦苇9.straw: n. ［U］the dried stems of wheat or similar plants that are used foranimals to sleep on, and for making things such as baskets, mats etc 秸秆（如麦秆等）10.c olonist: n. ［C］someone who settles in a new colony 开拓殖民地的居民，拓殖者11.s hingle: n. ［C］one of many small thin pieces of building materials,especially wood, used to cover a roof or wall（覆盖屋顶或墙用的）木瓦；屋面板；墙面板12.s late: n. ［U］a dark grey rock that can easily be split into flat thin pieces 板岩，板石13.c lay: n. ［U］heavy sticky soil that can be used for making pots, bricks etc黏土14.t ile: n. ［C］a flat square piece of baked clay or other material, used forcovering roofs, floors etc（屋顶、地板等上用的）瓷砖，地砖15.l ongevity: n. ［U］formal long life 【正式】长寿；technical the length of aperson or animal’s life【术语】（人或动物的）寿命11A lot of people in the United States are coffee drinkers. Over the last few years, a trend has been developing to introduce premium, specially blended coffees, known as "gourmet coffees" into the American market. Boston seems to have been the birthplace of this trend. In fact, major gourmet coffee merchants from other cities like Seattle and San Francisco came to Boston, where today they're engaged in a kind of "coffee war" with Boston's merchants. They are all competing for a significant share of the gourmet coffee market. Surprisingly, the competition among these leading gourmet coffee businesses will not hurt any of them. Experts predict that the gourmet coffee market in the United States is growing and will continue to grow, to the point that gourmet coffee will soon capture half of what is now a 1.5-million-dollar market and will be an 8-million-dollar market by 1999. Studies have shown that coffee drinkers who convert to gourmet coffee seldom go back to the regular brands found in supermarkets. As a result, these brands will be the real losers in the gourmet coffee competition.【生词摘录】1.premium: adj. of high quality 高级的，优质的2.blended: adj. combined or mixed together so that the constituent parts areindistinguishable 混合的3.gourmet: n. ［C］someone who knows a lot about food and wine and whoenjoys good food and wine 美食家4.birthplace: n. ［C usually singular］the place where someone was born,especially someone famous （尤指名人的）出生地；the place where something first started to happen or exist 发源地，发祥地12You may remember that a few weeks ago we discussed the question of what photography is. Is it art, or is it a method of reproducing images? Do photographs belong in museums or just in our homes? Today I want to talk about a person who tried to make his professional life an answer to such questions. Alfred Stieglitz went from the United States to Germany to study engineering. While he was there, he became interested in photography and began to experiment with his camera. He took pictures under conditions that most photographers considered too difficult. He took them at night, in the rain, and of people and objects reflected in windows. When he returned to the United States he continued these revolutionary efforts. Stieglitz was the first person to photograph skyscrapers, clouds, and views from an airplane. What Stieglitz was trying to do in these photographs was what he tried to do throughout his life: make photography an art. He felt that photography could be just as good a form of self-expression as painting or drawing. For Stieglitz, his camera was his brush. While many photographers of the late 1800's and early 1900's thought of their work as a reproduction of identical images, Stieglitz saw his as a creative art form. He understood the power of the camera to capture the moment. In fact, he never retouched his prints or made copies of them. If he were in this classroom today, I'm sure he'd say, "Well, painters don't normally make extra copies of their paintings, do they?"【生词摘录】1.experiment: v. to try various ideas, methods etc to see whether they willwork or what effect they will have 试验；试用2.skyscraper: n. ［C］a very tall modern city building 摩天大楼3.identical: adj. exactly the same 完全相同的［+to］4.capture: v. to succeed in showing or describing a situation or feeling usingwords or pictures（用语言或图片）记录下5.retouch: v. to improve a picture or photograph by painting over marks ormaking other small changes描绘，润色（图画、照片）。

旧托福听力Part C2004年8月演讲1：I’d like to share with you today my experience with a new approach to building a house. It’s called Envelop Building. Essenti ally, what it means is that as you are building a house, you try to leave the landscape feature on the land, especially the vegetation in the original condition. So what you are not doing is the usual practice of land scraping. By which I mean literally scraping or cleaning the land of any and all the original plants. Why is the approach called Envelop Building? Because instead of clearing everything away, you let your original landscape elements envelop or surround your house. Let the vegetation physical features such as hills and slopes or interesting rock formations, constituted a significant part of the character of the building sight. The design of the house should take these features of the property into account. Actually integrating your original wild landscape with a house is not that new. The famous American architect Wright was doing it about 65 years ago. So we are in good company. Envelop Building is not as easy as it sounds though. It’s not just that you build your house and leave the land alone. By building, you are already dama ging the original landscape. But as architects, we should try to work with environment, not against it. A creative architect can find ways to incorporate natural landscape into the overall design. For example, why used the massive boulders on the side of one of the most famous houses as part of the house foundation?演讲2：Today we are going to talk about copyrighting works of art. A copyright is a proof of authorship. It protects artists against someone else using their work without their permission. It’s important to remember that United States Copyright Law protects artistic expressions such as paintings, but does not protect any ideas, concept, procedure or technique. In all the United States Copyright Law, Artists needed to take several steps to obtain copyright protection. The law as changed in 1978 and again 1989. For artists the current law means everything they create is automatically and immediately copyrighted. They don’t have to file any documents and under the protection of the Copyright Law, any recreation of their original work such as prints are also covered by the artists copyright. Further more, any changes artists made to their original works are covered. The Law also makes it clear that when someone buys the work of art, they are not allowed to destroy or change that work of art. Artists keep the copyright even after selling the work of art. The purchaser may buy the physical work, but the right to make prints or copies is still the artists’ and buyers does not automatically have any right to make and sell prints or copies of work. Although works are automatically copyrighted, artists are encouraged to register their work with United States Copyright Office. Registering art provides additional legal protection and also gives the people around the world the ability to approach the honors about licensing and purchasing right.演讲3：Today let’s talk about synesthesia, that’s a brain condition in which a person’s sense are combined in a unusual ways. For example, a person with synesthesia may taste sounds. To them, a musical note may taste like a pickle. Many people who have synesthesia experience intense colors when they hear specific words. For example, they might see a flash of pink every time they hear the word “jump”. For a long time, many scientists were unconvinced that synesthesia really exists. So in the 1990s a n experiment was done to find our for sure. Two groups were studied. One was a group of people who claim to experience colors when they heard certain words. The other was a controlled group, people who experience nothing out of the ordinary when hearing words. Each group was asked to describe the colors they thought of when they heard a list of spoken words. When the test was repeated, the difference between the two groups was startling. After just a week, the controlled group gave the same answers only a third of the time. But even a year and a half later, the synesthetic group gave the same answers 92% of the time. Clearly, this is not just a matter of memory. Scientists are still not sure just why synesthesia happens. But certain drugs are reportedly able to produce it artificially. So we all probably have brains with connections that could synesthesia. It’s just the connections normally we used in that way.2004年5月演讲1：Today let’s consider the neutrino and the resolves of some experiments down in the 1995 at the Los Alamos national laboratory in New Mexico, which bear on the neutrino. These resolves suggest that this little particle does indeed have mass that tiny bet to be sure but measurable by the very sensitive instruments of that lab. The neutrino’s origin has always been an interesting case, though a case not unusual in the history of physics. As you know, ordinarily scientific observation precedes scientific theory. Ocean tides were observed, ocean tides were explained; gravity is observed, gravity is explained. However, let’s consider what happened in the neutrino’s case. When the neutrino was proposed over sixty years ago, it was a convenient fiction. Scientists had not observe d such a particle nor even as a fact. So what let them to conceive of this imaginary object? They had been writing equations about neutrondecay in which the energy amounts on each side of their equations were unequal. In order to keep this energy amounts the same on both sides of the equations, they added little particle named neutrino and gave it precisely enough energy to balance the equations and the loan be hold years later. About thirty-five years ago real neutrinos were found. Now we have the more recent developments. Originally, the neutrino was thought not to have any mass at all. But Los Alamos experiments seem to disprove this premise. They indicated that neutrinos do have mass—about one-millionth the mass of electron.演讲2：The forests of New England constituted both are resource and barrier for the first British settlers who reach these shores. In addition to the maples, firs, oaks and birches were white pines whose scientific name is Pinus strobus. These white pines were straight and tall, perfect for use as masts on the sailing ships of the time. Britain had used up its supply of mast trees, so is eager for this product of its young colony. By the first load of masts reached Britain in 1634 and Britain was marveled the size of the trees, which had diameters of up to 4 feet at the wide end. For every yard of mast height, the body end needed to be one inch in diameter. In1705, Britain passed a law stating that all white pines over 24 inches at the body end were reserved f or the use of king’s navy. Such trees were marked by blazing the king’s arrow symbol on the tree with three cuts of the hatchet. These trees were selected by the surveyor general, whose work often met with resistances of colonists.演讲3：Now the Australia j umping spider as you can image got its name for its ability to leap. But it can swim too. What’s most interesting though is its ability to use try and error tactics when solving problems. Now the jumping spider attacks and eats other spide rs. It’ll sit at the edge of another spider's web and attract the spider by tapping out different signals to mimic the struggles of a trapped insect and it’ll keep changing the signals till successfully lured its prey out. Well, to see if the jumping spider could app ly the same problem solving technique, try and error to unfamiliar situations, scientists conducted an experiment. They field a trap full of water and then put some sand in the middle, like an island. In between the island and the edge of the trap, they put a rock. When they put the spider on the island, some tried jumping to the rock, and some tried swimming. All the spiders that successfully reached the rock either by jumping or by swimming use the same method to make it from the rock to the edge of the tree. If the spider failed to reach the rock, it was placed back on the island, but the next time they try to leave, spiders did opposite of whatever didn’t work the first time, leaping if it had swum, or swimming if it had leaped. So we see the spiders using the same try and error in crossing the water as they used in hunting.04年1月：演讲1：I’m going to pass this piece of amber around so you can see this spider trapped inside it. It’s a good example of amber-inclusion, one of the inclusions that scientists are interested in these days. This particular piece is estimated to be about 20 million years old. Please be extremely careful not to drop it. Amber shatters as easily as glass. One thing I really like about amber is its beautiful golden color. Now, how does the spider get in there? Amber is really fossilized tree resin. Lots of chunks of amber contain insects like this one or animal parts like feathers or even plants. Here is how it happens. The resin oozes out of the tree and the spider or leaf gets incased in it. Over millions and millions of years, the resin hardens and fossilizes into the semiprecious stone you see here.Ambers can be found in many different places around the world. But the oldest deposits are right here in the United States, in Appalachian. It’s found in several other countries, too, though right now scientis ts are most interested in amber coming from the Domincian Republic. Because it has a great any inclusions, something like one insect inclusion for every one hundred pieces. One possible explanation for this it that the climate is tropical and a greater variety of number of insects thrive in tropics than in other places. What’s really interesting is the scientists are now able to recover DNA from these fossils and study the genetic mate rial for important clues to revolution.演讲2：Now we’ve been talking about the revolutionary period in the United States history when the colonies wanted to separate from England. I’d like to mention one point about the very famous episode from that period, a point I think is pretty relevant eve n today. I’m sure you remember, from when you are children, the story of Paul Revere’s famous horseback ride to the Massachusetts countryside. In that version, he single-headily alerted the people that “the British were coming”. We have this image of us solitary rider galloping along in the dark from one farm house to another. And of course the story emphasized the courage of one man, made him a hero in our history books, right? But, that rather romantic version of the story is not what actually happened that night. In fact, that version misses the most important point entirely. Paul Revere was only one of the many riders helping deliver the message that night. Just one part of a pre-arrange plan, that was thought out well in advance in preparation for just such anemergency. I don’t mean to diminish Revere’s role though. He was actually an important organizer and promoter of this group effort for freedom. His mid-night riders didn’t just go knocking on farm house doors. They also awaken the institutions of New England. They went from town to town and engage the town leaders, the military commanders and volunteer groups, even church leaders, people who would then continue to spread the word. My point is that Paul Revere and his political party understood, probably more clearly than later generations ever have, that political institutions are there as a kind of medium for the will of people and also to both build on and support individual action. They knew the success requires careful planning and organization. The way they went about the work that night made a big difference in the history of this country.演讲3：Let me warn you against a mistake that historians of science often make. They sometimes assume that people in the past use the same concepts as we do. There is a wonderful example that made news in the history of mathematics some while ago. It concerns an ancient Mesopotamian tablet that has some calculations on it using square numbers. The calculations look an awful lot like the calculations of the length of the sides of triangle. So that’s what many historians assume they were. But using square numbe rs to do this is a very sophisticated technique. If the Mesopotamians knew how to do it, as the historians started thinking that they did. Well, then their math was incredibly advanced. Well, it turns out the idea of Mesopotamians use square numbers to calculate the length of triangle’s sides is probably wrong. Why? Because we discovered that Mesopotamians didn’t know how to measure angles, which is a crucial element in the whole process of triangle calculations. Apparently the Mesopotamians had a number of other uses for square numbers. These other uses were important but they were not used with triangles. And so these tablets in all likelihood were practice sheets, if you like, for doing simpler math exercises with square numbers. In all likelihood, it was the ancient Greeks who first calculate the length of triangle’s sides using square numbers. And this was hundreds of years after the Mesopotamians.03年10月：演讲1：Today, we are going to talk about a special way some plants respond to being invaded by pests. These plants react by emitting a chemical signal, which acts like a call for help. Let’s take corn plants for example. Sometimes, caterpillars chew on the cor n leaves. When the caterpillar saliva mixes with the chew portion of a leaf, the plant releases a chemical scream that attracts wasps. The wasps respond to the signal by flying to the chewed-on leaf, and laying their eggs in the caterpillars. The caterpillars die in the next few days as the wasp offspring nourish themselves by feeding off them. Thus the corn plant prevents all its leaves from being eaten by the caterpillars. This chemical scream is specific. It’s only released after the plant has detected the caterpillar saliva. A plant that is cut by any other means does not give off the same signal, nor doesn’t undamaged plant. This also explains how a wasp can find a caterpillar in a huge field of corn. Soybeans, cotton and probably many other plants use a similar type of defense against pests. By enhancing this natural response in plants, researchers might reduce, or some day even eliminate, the need for chemical pesticide, which can cause ecological damage. For example, scientists might breed plants for this screaming trait, or they might transplant specific genes to increase the release of chemical signals.演讲2：Today, we are going to continue our discussion of Buddhism. In our last class, we talked about how it’s practiced. Today, I’d like to talk a little about early Buddhism, which we really don’t know much about. Well, what is known is that the teachings of Buddhism were memorized, and passed on orally for centuries by its followers. Recently, there was an important discovery of Buddhist manuscripts that are believed to be the oldest ever found. They may be 2,100 years old. And there maybe as many as 20 of them. It’s expected that we will be able to learn from them about the spread of Buddhism from present day India into China, and throughout Asia. But the scrolls themselves have presented challenge too. They were very fragile, found rolled up in clay pots. Before they even could be looked at, they need to be dampened over night in fact, and then carefully flattened with tweezers. And it’s not that anybody could just sit down and read them. The scrolls were written in a language that is really rare today. On ly a few people are proficient at it. Considering these challenges, it’s easy to understand why it’s taken scholars so long to examine the scrolls.演讲3：About 200 years ago, the United States economy was growing quickly, mainly because a booming trade in grain and cotton. This trade in grain and cotton went on near areas near or at the coast, or near navigable rivers. It took place there because it was so expensive to transport goods over the roads that existed. They were muddy, narrow, and hard to travel on. At that time, don’t forget there was only one continuous road that existed in the US, and it was made up of north to south local country roads, linked together to make one long road. Within a short time, the first east-to-west roads were built. They were called turnpikes. Private companiesbuilt these roads, and collected fees from all vehicles that traveled on them. Eventually, a network of dirt, gravel or plank roadways connected some major cities and towns. But even these turnpike roads were still very slow, and traveling on them was too costly for farmers. They would’ve spent more money to move their crops than they got by selling them. So, we s ee that even with some major improvement in roadways, farmers still had to rely on rivers to move their crops to market.03年8月：演讲1：In my opinion, Frank Lloyd Wright was the greatest American architect of the 20th century. People who know his designs well point out that his roofs often leaked, his ceilings were too low, and his houses were uncomfortable. In my presentation, h owever, I’ll be focusing on the virtues of his designs. For what you see, it would be hard todispute that he manipulated space extremely well, some of his smallest houses look gigantic,and he had great respect for the materials he used and also a tremendous skill for placing his buildings in harmony with nature.Wright’scare er began when he was young. He was just a teenager when he helped build the chapel on his family’s p roperty in Wisconsin. And from there, he got hired as a draftsman by the project architect. So it was a very long career. He did at 91, while his final major work, the Guggenheim Museum, was still being built.Today, we’ll cover what we consider to be the two great periods of his career, Wright’s works b efore the Tokyo Imperial Hotel completed in 1922 and everything after Falling Water, a private residence in western Pennsylvania completed in 1936. The first period started around 1896, when he made a dramatic shift from the classical tradition to the arts and crafts movement. Here, the emphasis was on order, consistency and unity of design. Things were kept simple with minimal decoration. Natural forms were very important. Let’s take a look at a slide of his own dining room done in this style.演讲2：We are going to talk today about the moon, our moon. First of all, the earth’s moon is unusual. Why? It’s larger than other moons or satellites in the solar system, in relation to its planet that is. Its diameter is more than a quarter that of the earth. And if you compare the earth and the moon in terms of substance, you find the moon isn’t much like the earth. For example, t he earth has a significant iron core, but the moon contains very little heavy materials like iron. That’s why its density is much lower than that of the earth. Now, one time it was believed that the moon and the earth were formed at the same time from the same material. But then wouldn’t the moon h ave as much iron as the earth? Another theory is that the moon was formed elsewhere in the solar system, and then it was captured, sort of the speak, by earth. But study shows that the young earth would not have had enough gravitational force to stop a body the size of a moon from traveling through the solar system and pull it into orbit. The newest theory is called the big splash theory. Here, the new young earth was hit by another big planet. Most of the colliding planet entered the earth and became part of it. But the huge impact created a vapor that shed out into space and eventually condensed as the moon. Because this material came mostly from the earth surface crust, not the iron core, the moon contains almost no iron. Well, as plausible as it sounds, it’s only a theory, and we can’t be sure that this is what really happened, that this is how the moon originated. Plenty of research remains to be done.演讲3：In order to diagnose and treat abnormal behavior, we have to start with clear definitions of what’s meant by abnormal and nor mal. Criteria must be worked out for distinguishing one from the other in actual clinical cases. The word abnormal implies a deviation from some clearly defined norm. In the case of physical illness, the boundary lines between normality and pathology are often clearly delineated by medical science, making it easier to diagnose. On the psychological level, however, we have no ideal model to use as a base of comparison, nothing to help us distinguish mental health from mental disorder. The problem of defining abnormal behavior via establishing just what is meant by normal behavior has proved extremely difficult. However, as chapter 5 outlines, several criteria have been proposed. One norm described in detail in your text is personal adjustment. An individual who was able to deal with problems effectively without serious anxiety or unhappiness or more serious symptoms is said to be well adjusted. Personal adjustment as a norm has several serious limitations though. For example, it makes no reference to the individual’s role in the group. Ho w’re we going to classify, for example, the a typical politician or businessperson who engages in unethical practices. Either might be successful, happy, and well-adjusted individual. Obviously, the welfare of the group, as well as that of the individual, must be considered, which brings me to the next approach.03年1月：演讲1：Today, I’d like to talk about some of the changes land can undergo, specifically desertification, that’s the process through which landbecomes part of a desert. Now a desert is defined as a place that receives a certain maximum amount of rainfall. But you may not know that it usually takes more than just a lack of water to turn productive land into a desert. There are several specific human activities that when combined with a lack of rainfall encourage desertification. For example, over cultivation, growing more crops than soil can support. The soil loses nutrients, so it needs either to be fertilized or to be left unused for at least a season. But if neither of these things happen if the se nutrients in the soil don’t get replaced, the damaged soil stops producing. Another cause of desertification is overgrazing. That’s when the grasses and trees and shrubs of an area are expected to feed more animals than they reasonably can. Too many animals eating in the same area will kill the vegetation. And because it’s the roots of this vegetation that hold much of the soil together, when too much of the vegetation dies, the soil erodes. But maybe the most ironic example of human behavior that can lead to desertification is irrigation. It may seem to run counter to common senseto say that introducing water into an area can cause it to become more like a desert. But there are plenty of bad irrigation practices that do just that. Bringing in too much salty water and then not providing adequate drainage for it will fill the soil with salt, and turn the area into a desert.演讲2：I’ve mentioned how DNA have solved many mysteries in biology. And today I want to talk about how it might relate to hypothesis about the travels of the green turtle. Every winter some green turtles make a 2000 km journey from Brazil to Ascension Island in the middle of Atlantic, where they mate and lay eggs. But the question is why do they travel so far to lay their eggs? One researcher hypothesized that there are two parts to the explanation. One is natal homing, the instinct that drives green turtles to always return to the beach where they were hatched. The second part has to do with continental drift, the theory that the positions of earth continents have changed considerably overtime. Brazil and Ascension Island were once much closer together, and continental drift drove them apart. But the turtles kept on going back to the island where they hatched. However another scientist questioned this explanation on the grounds that it would be very unlikely that conditions would allow generations of turtles over hundreds of millions of years to keep going back to the same nesting ground every single year. So, what is the connection to DNA? Well, there are groups of green turtles that nest in locations other than the Ascension Island. If green turtles always return to the place where they were hatched, then the turtles that have been going to the Ascension Island to nest would’ve been genetically isolated long enough to have DNA that was very different from the green turtles that nest elsewhere. But when scientists examined DNA from these turtles, their DNA wasn’t that different from the DNA of the turtles that go to Ascension Island. Do you have a shock? Well, we still don’t know the answer to the question about why a certain group of turtles go to Ascension Island, but this study was a nice example of the usefulness of DNA analysis to biology.演讲3：As I am sure you are aware, history is full of people who were so admired that over the centuries they become almost mythical figures. George Washington is a good example. Everyone knows this story about his chopping down the cherry tree when he was young and bravely confessing to his mischief later. People greatly admired Washington’s integrity. And so, out of that, this story evolved, even though no one knows for sure whether the incident ever occurred. Then there is the American Indian, Poke Hunters, beloved by history for making peace between the English Colonies and the American Indians. The history of her life has also become somewhat mythical. At the historical society exhibit next week, we’ll see many artistic works depicting the major events of her life. And while we are there, keeping in mind that much of what you’ll see in the paintings reflects how much she was admired, but not necessarily the fact of her life. For instance, one painting shows her saving the life of Jon Smith, an English Colonist, who had been captured by her tribe. Smith, so the story goes, was about to be executed when twelve-years-old Poke Hunters lay her head on top of his. Tells you a lot about her courage. But Jon Smith himself related this story only years after Poke Hunters had become famous, which suggests that he may have embellish the truth a little bit, as many of the works that we’ll b e seeing in next week may have done. Something else to remember: paintings portrait her physical appearance in many different ways, but always flattering ways. Yet only one picture of her was ever painted while she was living.02年10月：演讲1：A lot of people think that cultural anthropology is just about studying the special and strange aspects of a society, but anthropologists are also interested in the aspects of life that seems so ordinary that the people in the society think they’re not significant. Let me give you an example, I see lots of T-shirts here in class today, but you probably don’t think of them as an important part of your culture, but anthropologists could learn a lot about the culture of the United States just by studying the T shirt. For one thing, T shirts are a mark of how casual clothing has become in America. No one’s quite sure where they came f rom, but the T shirt first became popular in this country as an under shirt for sailors in the 1940s. Then in the 1950s, it became a sign ofrebellion for teenagers to wear this white under shirt by itself, not under anything. By the 1960s and 70s, T shirts have become accepted as part of the uniform of use. You could even say that they came to symbolize that generation’s attitude towards informality and all things, including dress. Another aspect that anthropologists would find interesting is that T shirts are used to express personal opinions. Look around this room, you know who likes watch TV show, who went where on vacation, who belongs to what organizations on campus. All of these aspects of our culture are printed on your T shirts. OK, I want to stop for a minute and ask you to try to write down five different conclusions you could reach about American culture from just the T shirts in this classroom.演讲2：Finally there is one more element to business success that we haven’t talked about. I know what you think I’m going to say, l uck and you’re partially right. Good entrepreneurs know how to make their own luck and that means being in the right place at the right time with the right product. Let me give you a little example, early in this century, if you were a traveler by train or subway and you happened to get a little thirsty in the station, where would you go for some water? There were no big soda machines at every corner or even drinking fountains, yet there were thousands of thirsty travelers out there, well, what they did was drink water out of a little tin cup that was passed from one thirsty commuter to the next. That’s right, everybody drank out of the same cup, and you can bet it didn’t get washed after every user. Will, that was the right time for the right product and there was a man who had it. Hi s name was Hugh Molar and his product was the disposable paper cup. He came up with it just as the nation was becoming concerned about their health risks associated with the tin cups. Laws were passed outlying the things; reports were published showing just what sort of germs could be passed around from sharing them. Mr. Molar rode that way to become the best known producer of one of the most successful paper products of all time. He originally called his product health cups, but later changed the name, so can anyone guess what that name might be?演讲3：A number of insects rely on leaping or jumping as a way of escaping from enemies. Grosshoppers probably have the most remarkable jumping ability of all these insects. If we think of it in human terms, a grosshopper’s high jump is like a human jumping over a five story building. Imagine that a person jumping over a five story building. We are going to take a look at the structure of the grosshopper’s leg to see why it’s able to jump so well, but first I wanna talk about the sensory organ that tells grossho ppers when to jump in the first place. En, OK, a grosshopper has two sensory organs located at the end of its abdomen. Whenever these organs sense a change in air pressure which might be produced by an enemy approaching, and impulses transmitted to the legs, this first impulse deactivates the nerves that con trol normal working and sets the grasshopper’s jumping muscles into a sort of pre-jumping position. Now at this point, if the sensory organs don’t detect additional air pressure changes, the jumping muscles relax and a grosshopper goes back to its normal walking, but if the organs continue to sense danger, another set of impulses puts the jumping muscles in motion. The distance of the jump is determined by just how many impulses are transmitted in the second set, the more impulses the longer the jump. OK no w let’s see why the grosshopper can jump so far. Open your books at the part about the muscular structure of the grasshopper’s leg. I think it’s in chapter 9.02年9月：演讲1：Not long ago, some of you may have read about the team of mountain climbing scientists who helped to recalculate the elevation of the highest mountain in the world, Mount Everest. Of course the elevation of Mount Everest was determined many years ago using traditional surveying methods. But these scientists wanted to make a more precise measurement, using a new method that takes advantage of recent a dvances in technology; it’s called the Global Positioning System. The Global Positioning System us es 24 satellites that circle the earth. Each of the satellites is constantly sending out signals, and each signal contains important information that can be used to determine the longitude, latitude and elevation at any point on the earth’s surface. Well, In order to use this system to calculate Mount Everest’s elevation, scientists need to put a special receiver on its summit to receive signals from the satellites. The problem with this was that in the past, the receivers were much too heavy for climbers to carry. But now these receivers have been reduced to about the size and weight of a hand-held telephone, so climbers were able to take the receiver to the top of the Everest, and from there, to access the satellite system signals that would allow them to determine the precise elevation. And it turns out that the famous peak is actually a few feet higher than was previously thought.演讲2：Human populations near the equator have evolved dark skin over many generations because of exposure to the fiercest rays of the sun. A similar phenomenon has also occurred in other parts of the animal kingdom. The African grass mouse is a good example.。