lecture2 answer

托福听力tpo46lecture1、2、3、4原文+题目+答案+译文Lecture1 (2)原文 (2)题目 (4)答案 (6)译文 (6)Lecture2 (8)原文 (8)题目 (10)答案 (12)译文 (12)Lecture3 (14)原文 (14)题目 (16)答案 (18)译文 (18)Lecture4 (19)原文 (19)题目 (22)答案 (24)译文 (24)Lecture1原文NARRATOR:Listen to part of a lecture in a biology class.FEMALE PROFESSOR:I'd like to continue our discussion of animal behavior and start off today's class by focusing on a concept we haven't yet touched upon—swarm intelligence.Swarm intelligence is a collective behavior that emerges from a group of animals,like a colony of termites,a school of fish,or a flock of birds.Let's first consider the principles behind swarm intelligence,and we'll use the ant as our model.Now,an ant on its own is not that smart.When you have a group of ants,however, there you have efficiency in action.You see,there's no leader running an ant colony. Each individual,each individual ant operates by instinctively following a simple set of rules when foraging for food.Rule number1:Deposit a chemical marker…called a pheromone.And rule2:Follow the strongest pheromone path.The strongest pheromone path is advantageous to ants seeking food.So,for example,when ants leave the nest,they deposit a pheromone trail along the route they take.If they find food,they return to the nest on the same path and the pheromone trail gets stronger—it's doubled in strength.Because an ant that took a shorter path returns first,its pheromone trail is stronger,and other ants will follow it, according to rule2.And as more ants travel that path,the pheromone trail gets even stronger.So,what's happening here?Each ant follows two very basic rules,and each ant acts on information it finds in its immediate local environment.And it's important to note: Even though none of the individual ants is aware of the bigger plan,they collectively choose the shortest path between the nest and a food source because it's the most reinforced path.By the way,a-a few of you have asked me about the relevance of what we're studying to everyday life.And swarm intelligence offers several good examples of how concepts in biology can be applied to other fields.Well,businesses have been able to use this approach of following simple rules when designing complex systems,for instance,in telephone networks.When a call is placed from one city to another,it has to connect through a number of nodes along the way.At each point,a decision has to be made:Which direction does the call go from here?Well,a computer program was developed to answer this question based on rules that are similar to the ones that ants use to find food.Remember,individual ants deposit pheromones,and they follow the path that is most reinforced.Now,in the phone network,a computer monitors the connection speed of each path, and identifies the paths that are currently the fastest—the least crowded parts of the network.And this information,converted into a numeric code,is deposited at the network nodes.This reinforces the paths that are least crowded at the moment. The rule the telephone network follows is to always select the path that is most reinforced.So,similar to the ant's behavior,at each intermediate node,the call follows the path that is most reinforced.This leads to an outcome which is beneficial to the network as a whole,and calls get through faster.But getting back to animal behavior,another example of swarm intelligence is the way flocks of birds are able to fly together so cohesively.How do they coordinate their movements and know where they're supposed to be?Well,it basically boils down to three rules that each bird seems to follow.Rule1:Stay close to nearby birds.Rule2:Avoid collision with nearby birds.And rule3:Move in the average speed and direction of nearby birds.Oh,and by the way,if you're wondering how this approach can be of practical use for humans:The movie industry had been trying to create computer-generated flocks of birds in movie scenes.The question was how to do it easily on a large scale?A researcher used these threerules in a computer graphics program,and it worked!There have also been attempts to create computer-generated crowds of people using this bird flocking model of swarm intelligence.However,I'm not surprised that more research is needed.The three rules I mentioned might be great for bird simulations,but they don't take into account the complexity and unpredictability of human behavior.So,if you want to create crowds of people in a realistic way,that computer model might be too limited.题目1.What is the lecture mainly about?A.Various methods that ants use to locate foodB.A collective behavior common to humans and animalsC.A type of animal behavior and its application by humansD.Strategies that flocks of birds use to stay in formation2.According to the professor,what behavior plays an important role in the way ants obtain food?A.Ants usually take a different path when they return to their nest.B.Ants leave chemical trails when they are outside the nest.C.Small groups of ants search in different locations.D.Ants leave pieces of food along the path as markers.3.What are two principles of swarm intelligence based on the ant example?[Click on2answers.]A.Individuals are aware of the group goal.B.Individuals act on information in their local environment.C.Individuals follow a leader's guidance.D.Individuals instinctively follow a set of rules.4.According to the professor,what path is followed by both telephone calls on a network and ants seeking food?A.The path with the least amount of activityB.The most crowded pathC.The path that is most reinforcedD.The path that has intermediate stopping points5.Why does the professor mention movies?A.To identify movie scenes with computer-simulated flocks of birdsB.To identify a good source of information about swarm intelligenceC.To emphasize how difficult it still is to simulate bird flightD.To explain that some special effects in movies are based on swarm intelligence6.What is the professor's attitude about attempts to create computer-generated crowds of people?A.She believes that the rules of birds'flocking behavior do not apply to group behavior in humans.B.She thinks that crowd scenes could be improved by using the behavior of ant colonies as a model.C.She is surprised by how realistic the computer-generated crowds are.D.She is impressed that computer graphics can create such a wide range of emotions.答案C B BD C D A译文下面听一段生物学讲座的片段。

Mini-lecture 1Cultural UnderstandingLike learning a language，developing cultural understanding occurs step by step over time.Here are five stages of cultural understanding veduchina.Stage one：No understanding.一involves no awareness of the new culture：know nobody and few(1)Stage two：Sup erficial understanding.--awareness of (2) aspects of the foreign culture and stereotypes veduchina--stereotytres are(3)Stage three：Growing understanding and possible(4)--awareness of more subtle，less visible traits in foreign culture--unnecessarily bring acceptance veduchina.For anyone，the home culture is(5)Stage four：Greater(6)————understanding.一still(7) have little empathy veduchina一the(8) level is higherStage five：True empathy，and cultural (9)————.—to live in the foreign culture：the amount of time depends Oil(10)Mini-lecture 2 British Educational System1.Primary and secondary educationin Britain1)Children at the age of(1)________go to primary school.2)Students attend secondaryschool until age sixteen.3)Students enter higher education at age eighteen.2.Higher education in Britain1) In England and Wales：—Application for universities：through the UCCA；一Courses：“course”refers to a(2)_______ program，structured with a fixed program of classes；—Classes：a.classes are offered in the UK on a(3)________basis veduchina；b.more emphasi s i s placed on(4)________study；c.students write more essays and take fewer objective tests；d.classes often take the following forms：(5)______，tutorials，seminars.2) In Scotland：—A variety of tertiary level options are available：a.The colleges of further education provide vocational and (6)____education；b.Central institutions don’t directly validate degrees,but many have close ties to(7) .c.Teachers colleges veduchina；d.The standard university degree is a four—year(8)__________；parison between the US and the UK higher education1)Grading：一In the UK，(9)__________are the most common form of study assessment—The US professors grade less strictly than the UK professors veduchina2)Course levels：—Basic courses are not(10)____________at UK universities.Mini-lecture 3 Mass Media in AmericaMass media specifi cally refer to those publications and programs that attempt to serve most or all of the people in a given market.Three groups of mass media in America are briefly introduced.I. N ewspapersA.Reading newspaper is different from watching TV.—for one thing1.detailed(1)_______ of news items2.substantial treatment of news events3.interesting and stimulating opinions4.analysis over important events at home and abroac—for anotheras for the reading places, no(2)_______B.Newspapers are still a big business.—fact one: the large circulation of a number of important newspapers—fact two: the great (3)_______ of newspapers availableII. MagazinesA.great varietyB.wide range of topi csC.different target readers:the well-educated,well-informed,and(4)_____ peopleD.the top three:(5)_______ TV Guide and The Conde Nast SelectIII. Radio and TelevisionA.Radio:a first-class entertainment medium for most Americans一The future of the radio is still(6)___________B.Television--become popular after the invention of(7)_____ and videotape recorders—profound impact on society1.the socialization effect2.a(8)_________ a molder of new of new cultural trends and a molder of attitudes towards these new trends3.revolutionized the marketing of goods4.the enormous cultural impact of TV violent programs5.the impact of TV on(9)_______________To sum up，the mass media in Ameri ca has，to a great extent，changed and will still keep on changing Americans’(10)_________Mini-lecture 4 Government in Britain and the USThe focus of this lecture is different government systems in Britain and the US.Government in Britain:1. National government:the center of government in Britain iS Parliament.一Location of parliament:(1)__________.—Parliament includes the House of Common，the House of lords and the monarch.—the passage of bills:firstly brought to the House of Commons for discussion，then the house of Lords，finally(2)_________2. Local government in Britain，also known as(3)_________一make small laws,only applied in local area—got payment from(4)from national government--elected by people within each town,city or country areaGovernment in the US:1.The federal government—(5)________is the central law-making body in the US.1)the House of Representatives2)the Senate: the higher but less (6)________of the two houses of Congress.—The President has the power of (7)________a bill.—The Supreme Court: the final Court of Appeal in the US.2.The state government—Each state has its own written(8)________—The highest elected official of each state is the Governor.3.The local government—No law of local government can be(9)________with the United Constitution.To sum up，the government in each country is a (n) (10)________of its historicaland modern factors.参考答案：Mini-lecture1 (1)basi c facts (2)negative (3)offensive (4)conflict (5)much better(6)intellectual (7)emotionally (8)comfort (9)respect (10)the individualCulture understanding文化差异Today I will focus on the i ssue of culture understanding. With increasing globalization, the world becomes really small nowadays. As a member of the global, we get more chances to contact foreign cultures. And what if we want to understand foreign culture very well, what should we do? What kinds of process will we experience before we achieve that goal. The answer is not very difficult to imagine. Just like learning a language, developing culture understanding occurs steps by steps over time. Development of culture consciousness is a process that starts the stage no understanding and moves, in the best case, to the stage of true empathy移情作用,[心]神入and culture respect. So an order to make it a clearer explanation about the process, the five stages of culture understanding is presented here.Stage 1 no und erstanding This level involves no awareness of new culture. The point is quite easy to see. For a person who has few chances to get contact with other cultures, a new one sometimes might as well be like something from an unknown planet in outer space. The person does not know anyone from the culture, and has encountered few, if any, basi c facts about the culture; so naturally, the person certainly has no way to understand that culture at all.Stage 2 superficial understanding This level involves awareness of very superficial aspects of foreign culture, frequentl y negative aspects. At this stage of culture awareness, the person knows a few basic facts of new culture. These facts stand out and often serve as the basis of stereotypes 陈规,老套. However, the stereotypes are offensive because they imply that al l people from a certain culture have the same characteristi cs. At this stage of culture awareness, when stereotypes are keenly felt, the person is highly ethnocentric种族[民族]中心主义的,种族[民族, 集团]优越感的that means the person is just focused on his or her own culture as the norm of what is right and comparing the new culture with the better culture back home. Stage 3 growing und erstanding and possible conflict In this stage the learner begins to be aware of more subtle sometimes less visible traits in the foreign culture. I will give you an example here to illustrate this point. A student learned that a given culture focuses on family far more getting things accomplished. As a result, he or she begin to appreciate the huge importance of family value in this culture, so we can see thi s understanding helps the person to see why things operate the w ay they do. But such awareness doesn’t al ways bring acceptance. In this stage the person is still ethnocentri c home culture-oriented, comparing that culture that i s new to his/her old home culture and usually feel his/her home culture is much better. I think some of you, as English majors, may have the exactly same experiences when you come to be familiar with your foreign t eachers or friends. You do appreciate some of their cultures but you just can’t accept them from the bottom of your heart.Stage 4 great intellectual culture und erstanding At this stage the learner begins to comprehend intellectually the peopl e in the foreign culture yet they are still a little emotional empathy. The person can not feel what it is like to be a member of that culture, the learner thus starts to see things intellectually through the eye of culture bearers at the least part of the time, but they just can’t really feel the same way the members of foreign culture feel. The learner begins to shed ethnocentrism a little bi t and starts to understand new culture more deeply. The person knows why thing are done in the way they are done and accept these things with less irritation. So you can see now the learner obviously comprehend the briefs and actions of people in the culture, the comfort level is higher, and the person does not complain the extensively about the culture differences. That makes a big sense in the process of culture understanding.Stage 5 true empathy and culture resp ect This level is the highest one of culture awareness. To attain this level, the learner must actually live in the foreign culture for some time. As for how long the learner must live in such a culture so that they can reach stage five. The amount of time is variable, greatly depending on the individual. At the fifth stage, unlike the previous stages the learner does not just see things intellectually from the viewpoint of the culture some or most of the time, instead he/she actually feel the part of culture, respects the culture fully and emphasizes emotionally with those who have lived all their life in that culture. By doing so, the person, in real sense, achieves a true culture understanding.In summary, today’s lecture is centered on the stages and growth of culture consciousness. Altogether there are five. 1 no understanding means one does not know anyone from that culture knows few, if any, facts. 2 superficial understanding means one knows some superficial facts and stereotypes. 3 growing understanding and possible conflict means one is aware of moresubtle traits but may experience culture conflicts probably believes one’s own culture is superior. 4 great inte llectual culture understanding means one understands the culture intellectually but not emotionally. 5 true empathy and culture respect means one understands the culture both intellectually and emotionally, can feel what the people in the culture feel. Hope the lecture will be helpful in your nurturing of your culture awareness. Thanks for your patience.Mini-lecture2(1)five (2)degree (3)modular (4)independent/self-directed (5)lectures (6)technical(7)local businesses (8)Honors degree (9)written examinations (10) commonBritish Educational SystemToday I’ll talk about the British educational system, including the primary and secondary education and the higher education in Britain. Meanwhile, I’ll try to make a comparison between the US an d the UK higher education.First, I’ll briefly introduce the primary and secondary education in Britain. In England and Wales, students study in primary schools from age five until eleven. They attend secondary school until age sixteen. Before graduating, students usually take seven comprehensive exams, called the General Certificate of Secondary Education (GCSE) exams. After passing the GCSE exams, students choose to study two to four subjects intensely for the GCE Advanced Level exams, called "A levels." At eighteen, they enter higher education to focus on a parti cular subject, called a "course."Now let’s move on to the higher education in Britain. First I’ll talk about the general practi ces in England and Wales, and then the general practices in Scotland.In England and Wales, prospective university students apply for places through the Universities Central Council on Admissions (UCCA). Students do not apply directly to the universities themselves. Successful candidates are admitted directly into a specific degree "course." A degree course normally takes three or four years to complete. At most universities students study only one major subject. Each course i s structured with a fixed program of classes for the entire three years. Increasingly, universities in the United Kingdom are offering classes on a modular(课程教学)以单元为基础的basis, whi ch allows students to broaden their studies creating a more interdisciplinary program. This modularization, however, has not replaced the traditional British degree course with the American concept of credit accumulation. In addition, there is generally a sharp distinction between the arts and sciences and there is seldom any cross-over between the two.At a British university, more emphasis i s placed on independent, self-directed study than in the United States. Required texts and definite reading assignments are less common. More typi cally, an extensive reading list covering all topi cs to be discussed is di stributed at the start of the course to be used for independent research. British students typically consult a large number of sources from the library rather than intensively studying a few books purchased by everyone taking a course. In addition, students are required to write more essays and take fewer objective tests than at U.S. institutions. Classes often take the following forms: lectures, which are sometimes completely optional; tutorials, in whi ch a small number of students meet with the lecturer; and seminars, larger discussion classes often based upon seminar essays. Unlike the U.S. system of regular testing in a course, British students sit for final examinations that cover the full year's work and determine the grades for the class. With the growth of modularization, however, there has al so been an increase in the number and variety of modules offered on a semester basi s.In Scotland, there are a variety of tertiary第三的,第三位的level options available for students, the most important of whi ch are the colleges of further education, the central institutions, teachers colleges and the universities. The colleges of further education provide vocational and technical education, and enroll more students than all other tertiary institutions combined. Central institutions provide courses leading to the Higher National Diploma (HND), bachelor's degrees and some specialized master's degrees. These institutions do not have the authority to directly validate degrees and tend to offer a narrower range of subjects than the universities. Many have close ties to local businesses, offering cooperative work experiences that provide students a period of practical training.Scottish universities are quite di stinct from their British counterparts. In fact, they more closely resemble European or American universities. The standard Scottish university degree is a four-year Honors degree (BA Hons). Students are rarelyadmitted directly to a degree "course." Usually they are admitted to a faculty or simply admitted to the university as a whole. Scottish university students begin with a broad-based program during the first year and choose a specialization专门[业]化after the second or even the third year. Students may also elect to complete a three-year Ordinary degree. This i s a broad-based degree that (unlike in England) does not represent a "failed" Honors degree.Next, let’s compare the US and the UK highe r education from two aspects,]namely, grading and course levels.First, about the Grading. In the UK, assessment methods vary by institution and tend to reflect the UK teaching method and style. Written examinations, whi ch are held at the end of a year or, in some cases, in the final undergraduate year only, are the most common form of study assessment. There i s no official method of equating British and American educational qualifications. The educational systems are very different and attempts to compare them must be done on a strictly provisional basis. Many U.S. institutions have already developed systems of assessing their study abroad students or equating British grades to U.S. grades.Professors at UK institutions grade more stri ctly than their counterparts in the United States. As a result, American students studying in the UK often perceive that they have performed poorly in their classes, when they have not. Grades are given as percentages rather than letter grades. Forty percent is the minimum passing grade and high percentages are rarely awarded. A grade of seventy percent or higher is considered "with distinction."In general, percentages increase from forty rather than decrease from 100 percent, as they do in the United States.Second, about the Course Levels. A typi cal British course load will vary from 3 to 6 modules or classes per term. Most students take 4 to 5 modules per term. The number of hours in class per week will vary by institution. Students should note that general education or basi c courses are not as common at UK universities because they have already been covered at the GCSE level. Many faculties assume that a student has a basi c understanding of the concepts that will be addressed in the course. For this reason, it is common for third-year American students to take first-year and second-year courses at a UK university.With thi s, we’re coming to the end of today’s lecture. Next time, we’ll talk about university degrees.Mini-lecture3 (1)coverage (2) limitation/confinement (3) variety(4)public—conscious(5) Reader’s Digest (6) promising/bright (7)portable cameras (8) transmitter (9) religion (10)lifeMass Media in America美国媒体Good morning, everyone,today my topic i s mass media in America. By media, we refer to the variety of means by which technology transmits information and entertainment to us. Thus, in its broadest sense, the term media includes newspaper, television, movies, radio, books, and magazines. Mass media specifi cally refer to those publications and programs that attempt to serve most or all of the people in a given market. Here I would like to introduce the mass media in America by dividing them into three groups: newspaper; magazines; radio and television.First, let’s have a look at newspapers. For a long time, newspapers have been the chief means by whi ch people get themselves informed. While television has replaced newspapers as the primary source of news for most Americans, and while computer network is increasingly becoming a faster and easier way of obtaining news for many Americans, newspapers still remain as one of the most powerful means of communications in the United States. For one thing, reading newspapers i s different from watching TV. It gives detailed coverage报道范围of news items, and tends to provide substantial treatment of news events. And, sometimes it offers interesting and stimulating opinions as well as analysis over important events at home and abroad. For another, unlike watching TV, reading newspapers does not require one to be confined to his sitting-room. He can do it virtually anywhere he likes: in his car, at the breakfast table, sitting in the sun, waiting at the subway station, and believe it or not, in the restroom. So, for these and many other reasons, newspapers in the United States are still a big bus iness. And, this is borne out by two facts: (1) the large circulation of a number of important newspapers such as USA Today《今日美国》and The Wall Street Journal《华尔街日报》; (2) the great variety of newspapers available in the United States, big and small, local and national, special and general, radical and conservative, and so on. The top 3 daily newspapers in the United States are: Wall Street Journal, USA Today and New York Times《纽约时报》.Second, we’ll move to magazines. According to a statisti cal record in 1990, there were over 12,205 magazines being published in the United States. More than 4,000 of them appear monthly, and over 1,300 are published each week. They cover all topics and interests, from art and architecture to sports, from aviation航空学,飞机制造业and gardening to computers and book reviews, from fashion design and cooking to homemaking. Quite a few have international editors, are translated into other languages, or have “daughter” editions in foreign countries. Among the many internationals are National Geographic《国家地理》杂志, Reader’s Digest《读者文摘》杂志,Cosmopolitan《大都会》,Vogue《时尚》杂志,Time《时代》,Newsweek 《新闻周刊》, Scientific American and Psychology Today. The weekly newsmagazines —the best known are Time, Newsweek, and U.S. News & World Report《美国新闻与世界报道》—serve as a type of national press. Unlike newspapers, however, weekly newsmagazines tend to give extensive coverage and provide detailed, and sometimes in-depth, analysis. Also unlike newspapers, whi ch usually have the lowest common denominator in their appeal to the general reading public, weekly newsmagazines normally target at the well-educated, well-informed, and public-conscious people of the society. Many weekly newsmagazines also have considerable international impact, particularly Time and Newsweek. The top three magazines in America are: (1) Reader’s Digest; (2) TV Guide《电视导读》; (3) The Conde Nast Select.Third, I’ll say something about radio and television. In more than two generations, the two powerful mass media transformed much of American life.Radio, emerging at the same period when the Great Depression pervaded蔓延, 在…中盛行in America, provided free entertainment in the comforts of the home. Families that could no longer afford to go out for entertainment gathered together in their living rooms to escape reality by laughing, fantasizing梦想,幻想and dreaming of happier times. From then on, radio became a first-class entertainment medium for most Ameri cans. Up until now, in view of the popularity of radio programs in the United States, the future of radio as a form of medium continues to look bright.Then, with the rapid development of science and technology, TV came into being in 1920s. It primarily serves as a medium of entertainment, and then also has a big role to play as a news broadcasting agency. Networks began experimenting with news at locally owned stations as early as January 1940. But, early-day television news could not begin to compare with radio news. Only after the invention of portable cameras and videotape recorders had television been made a much more credible news medium because viewers saw pictures of the news events on the day they occurred. Consequently, access to news is made much easier, and the general public is getting better informed.Gradually, television’s impact on American society has been more and more profound. It has changed the life-styles of most Americans and become a major influence on American culture. It can be seen from 5 aspects.First and foremost is the socialization effect. Many studies have shown that TV’s dominance as household activi ty often reduces the level of communi cation among family members and, as a result, much of the culture being distributed to youngsters today in the United States comes from the tube rather than the family.Secondly, television programming has played an important role in shaping and reflecting for the masses the cultural changes that have been occurring in American Society. TV functions both as a transmitter传送[递]者of new cultural trends and as a molder造型者,模塑者of new attitudes towards these new trends.Thirdly, television has revolutionized the marketing of goods in the Ameri can economy. With TV marketing, people become vulnerable to the products, or in other words, to the commercials.Fourthly, the cultural impact of violent TV programs has been quite enormous. Needless to say, the question of violence on TV has been around nearly as long as the medium. Many critics claim that TV violence increases violence in American society.Fifthly, the impact of TV on religion has al so been an issue of great concern to many Americans. So far now, it is still an issue full of di sputes.To sum up, the mass media in Ameri ca includes so many different forms, and each of them plays a vital role in American people’s life not only in the past, but also at present and in the future. To know much about America, one must have a good knowledge about its mass media.Mini-lecture4 (1)Westminster (2)signed (3)Councils (4)local taxes (5)Congress (6)powerful(7)veto (8)Constitution (9)in di sagreement (10)embodimentGovernment in Britain and the US英美政府Today we will focus on the Government in Britain and the United States. Let’s have a look at them one after the other.Government in Britain can be divided into National government and Local government.The center of government in Britain is Parliament, which makes all the important laws for the country about crimes and punishment, taxation课税, etc. Parliament i s made up of the House of Commons, the House of Lords and the monarch. The Houses of Parliament are in Westminster in London and sometimes “Westminster” itself i s used to mean Parliament.The House of commons, or the Commons, is the lower but more powerful of the two Houses. It has 650 elected members, called Members of Parliament or MPs, each representing people in a parti cular area or constituency(议员所代表的)(全体)选民;选(举)区. The House of Lords上议院, or the Lords, is the higher but less powerful of the two Houses. It has over 1,000 members, none of whom is elected. These members include: people who have titles like Lord or Viscount子爵whi ch have been passed down to them on the death of their father; people who are given titles as a reward for their long servi ce in public life, but whose children do not inherit their title; and some important leaders of the Church of England, such as Archbishops and Bishops.The government brings bills to the House of Commons下议院, whi ch are discussed by MPs. The bills then go to the House of Lords to be di scussed. The House of Lords can suggest changes to a bill, but does not have the power to reject it. When bills come back to the Commons, MPs vote on them and if they are passed they are signed by the monarch and become Acts of Parliament.At present England, Scotland, Wales, and Northern Ireland are all governed by Parliament in Westminster. In Northern Ireland the political parties are different but their MPs still go to the House of Commons. In Scotland there is a lot of di scussion about whether Scotland should have some separate or partly separate form of government. The same is true in Wales. The Local government in Britain, also known as Councils, can make small laws, that i s bylaws, whi ch only apply in their area, but these are usually about small, local matters. For instance, they may be about fines that will be made for people who park in certain streets.Councils are paid for by local taxes and also by an amount of money given to them each year by the national government. Their main job is the organizing and providing of local services, e.g. hospitals, schools, libraries, public transport, street-cleaning, etc. They are also responsible for setting the amount of local tax that people must pay and for collecting thi s tax.Local councils are elected by people within each town, city, or county area. The people who are elected, known as councilors, usually represent one of the national political parties, but are often elected because of their policies on local issues rather than the national policies of their party.Now let’s move to the topi c of Government in the US. All levels of government in the US, including federal, state, and local, are elected by the people of the country.First, we’ll talk about the federal government. The constitution of the US specifi cally limits the power of the federal, or national, government mainly to defense, foreign affairs, printing money, controlling trade and relations between the states, and protecting human rights. The federal government is made up of the Congress , the President, and the Supreme Court. Congress, the central law-making body in the US, i s made up of the House of Representatives and the Senate. The House of Representatives is the lower but more important of the two houses of Congress. It has 435 members, called Representatives or Congressmen. The number of Representatives for each state depends on the size of the population of the state, with each state having at least one Representative. The Senate i s the higher but less powerful of the two houses of Congress. It has 100 members, called Senators, elected by their state. Each state has two Senators. Congress decides whether a BILL becomes law. If the Senate and the House of Representatives both agree to a bill, the President i s asked to agree. The President can veto the bill, but Congress can still make it a law if 2/3 of the members of each house agree to it.Second, we’ll learn something about the state government. The state government has the greatest influence in people’s daily lives. Each state has its own written Constitution, and among the states there are sometimes great differences in law on matters such as property, crime, health and education. The highest elected official of each state is the Governor. Each state also has one。

托福听力tpo67lecture1、2、3原文+题目+答案+译文Lecture1 (2)原文 (2)题目 (5)答案 (7)译文 (8)Lecture2 (10)原文 (10)题目 (13)答案 (17)译文 (17)Lecture3 (19)原文 (19)题目 (23)答案 (26)译文 (26)Lecture1原文Professor:Now we've said that animal behavior patterns involve an interplay between an animal and its environment.In particular,behavior patterns can change as an animal becomes adapted to its environment. We can see the results of this in the way that animals have developed different types of feeding behavior.Animals are generally classified as a generalist feeders and specialist feeders.Now,um,these terms are used in a variety of ways.At times,they're used to refer to an animal's range of habitats.I've also seen them used to describe the number of foraging techniques that are used by an individual or species.Um,but for our purposes,we're going to use them to refer to the range of food items that are eaten by a species.So a generalist feeder is a species that eats a wide variety of foods during its lifetime.And a specialist is a species that feeds on a highly restricted number of foods.A good example of a generalist would be a rat.Rats are notorious for eating just about anything that's available,whether it's a plant or an animal.At the other end of the spectrum,we have the koala which eats only the leaves of eucalyptus trees.Okay,now there are advantages to each.For a generalist,If1type of food isn't around,it can feed on another that's more abundant.On theother hand,the advantage of being a specialist is that the animal is well adapted to its food.You could say that specialists are feeding masters, their consumption,even their digestive system is just so finely tuned.For instance,take the koala.The eucalyptus leaves that it feeds on,don't contain much protein.What's more,the leaves contain compounds that are poisonous to most species?But the koalas digestive system has adapted to handle this.It's liver deactivates,the poisonous compounds, and its digestive system is designed to extract the maximum amount of nutrients from the leaves.So it's not a question of which strategy is better.The real question is, what determines how selective animal species are in what they eat?Well, the answer may lie in a concept called optimal foraging.The idea is that natural selection favors animals whose feeding behavior has the lowest cost to benefit ratio.That is you want to get the best healthiest food you can.And you want to do it as quickly as possible.And as easily as possible.Now,in a natural environment,no animal forage in an absolutely optimal manner.But,well,I read some research on a little rat called the kangaroo rat,which lives in deserts in North America.The kangaroo rat is a generalist which eats plant matter like seeds and fruit.It lives in deep burrows which provide protection from the desert heat and from predators like hawks or snakes.And it goes foraging at night for food.For plant matter,under the protection of darkness,even though it's a generalist.If the only thing available is seed,if a choice of seeds is available to it,it picks up seeds that provide more energy than those it leaves behind.And it carries them back to its burrow.Once it's there,it might eat only the richest seeds from the ones that brought back.So it selects seeds outside in a way that lets it spend as little time as possible foraging in that risky environment,and then sorts out its food later when it's safely in its burrow.Oh,yes,Kenneth.You have a question?Male student:But what about the koala?It gets by uh,by being even more selective,you'd think you would be really risky to rely completely on eucalyptus leaves.Wouldn't it be better to diversify like the kangaroo rat,and eat,at least one or two other things?Professor:Well,what do you think the koala would say?What do I gain by being so selective?In terms of optimal foraging,it's clear that eucalyptus trees provide an abundant source of food.Other animals can't eat the leaves and think of how little energy the koala uses.It spends only about3hours each day eating to get the energy it needs.So being a specialist allows it to get the nutrients it needs with minimal expenditure of energy.题目1.What is the lecture mainly about?A.The reasons why some animals eat only plantsB.The advantages of two different feeding adaptationsC.The variety of foods that certain animals can eatD.The relationship between two animals that share a habitat2.What definition of the term“generalist”does the professor use in the lecture?A.An animal species that eats a wide variety of foodsB.An animal species that lives in a range of different habitatsC.An animal species that uses several techniques to forage for foodD.An animal species that forages at several different times of the day3.What points does the professor make about the koala’s specialist feeding habits?[Click on2answers.]A.It obtains all the food it needs in relatively little time.B.It requires large amounts of protein in its diet.C.It can eat leaves that are poisonous to other animals.D.It spends most of its time eating.4.What does the professor imply about the kangaroo rat?A.It will take more risks when foraging for high-energy food.B.It is one of the most selective feeders in North America.C.Its competitors often eat its food supply.D.It is selective when choosing what food it eats.5.How does the professor organize the information in the lecture?A.By contrasting an old theory with a new theoryB.By defining important terms and then giving examples of themC.By describing the similarities between two animalsD.By describing a problem and then suggesting some solutions6.Why does the professor say this:Male student:But what about the koala?It gets by uh,by being evenmore selective,you'd think you would be really risky to rely completely on eucalyptus leaves.Wouldn't it be better to diversify like the kangaroo rat,and eat,at least one or two other things?Professor:Well,what do you think the koala would say?What do I gain by being so selective?In terms of optimal foraging,it's clear that eucalyptus trees provide an abundant source of food.Other animals can't eat the leaves and think of how little energy the koala uses.A.To express agreement that the koala should eat a greater variety of foodB.To indicate that the koala’s behavior does not illustrate optimal foragingC.To remind the man of the characteristics of selective feedersD.To encourage the man to consider the koala’s feeding behavior differently答案B A ACD B D译文我们已经说过动物的行为模式涉及到动物和它的环境之间的相互作用。

Lecture Two A Contrastive Study of Chinese and English只赢得：几杵疏钟，半江渔火，两行秋雁，一枕清霜。

There left behind are bronze bells heard occasionally and fishing boats with flickering lamps seen in the middle of the lake, wild geese leaving in a hurry in two files in autumn, and only frosted snow all over the terrains in winter.What remains is only sparse bells ringing in cold hills, fishermen’s lantern lights by riverside, two rows of wild geese flying in autumn sky and a dreary dream of hoary winter frost.知己知彼，百战不殆；不知彼而知己，一胜一负；不知彼不知己，每战必殆。

Y ou can fight a hundred battles without defeat if you know the enemy as well as yourself. Y ou will win one battle and lose another if you know yourself but leave yourself in the dark about the enemy. Y ou will lose every battle if you leave both the enemy and yourself in the dark.●From Structure1. 英语有形态变化,汉语没有严格意义的形态变化.English : gender, number, case, tense, voice, mood, degree of comparison, person and parts of speech.汉语:数量助词,动态助词,结构助词He is a professional. He is a loose man. He served as a call boy when he was 19. She is a professional. She is a loose woman. She served as a call girl when she was 19.2.英语经常使用定冠词和不定冠词out of question take a chair I have lived here for more than a year.out of the question take the chair I have lived here fore more than one year.2.汉语有丰富多彩的助词.吧今天不会下雨吧? It isn’t going to rain today, is it?你好好想想吧! Just think it over.明天就明天吧. All right, let’s make it tomorrow.咱们走吧. Let’s go.打吧,打不下去;跑吧,跑不了,敌人只好投降.Unable to fight on or to escape, the enemy were forced to surrender.3.英语常用介词,汉语则少用介词.✦What is he at? 他正在干什么?✦John voted with the Tories. John 投票支持保守党.✦He is a man above vulgar interests. 他是一个脱离了低级趣味的人✦It looks as if we are in for a storm. 看来我们免不了要碰上一场暴风雨了.✦If a man couldn’t walk into a room and tell who was for him and who was againsthim, then he wasn’t much of a politician。

scan,是浏览，一般是带着问题，为寻找答案去读。

skim，是略读，是要找出主旨，看文章在讲什么，get the general ideaskim略读，理解掌握文章大意，与扫读(glance)意思一样。

属于方法方面。

scan审读，快速索所需特定信息，与跳读(skip)意思一样，属于技能方面。

skim就是read sth quickly in order to find a particular point or the main point即快速阅读以找到文章的中心思想/主要意思。

If you skim through the play too quickly, you'll forget the plot. 如果你读剧本读得太快,就会忘记剧中主要情节。

scan就是look at every part of sth carefully, especially because you are looking for a particular thing or person即快速阅读以找到某一具体的信息His mother scanned his face to see if he was telling the truth. 他母亲察看他的面色看他是不是在讲真话。

skim和scan的区别是，skim是选择性的跳读，scan是浏览式的泛读，在国外每学期每门课程的reference book都有几十本，不像国内每门课就一本所谓的教材，但事实上没有一本教材是可以称得上完全没有纰漏的，所以在国外写essay的时候就要看很多书，但并不是每本书从头看到尾.Lecture Two 快速阅读(Skimming and Scanning )快速阅读考查的是什么？1）快速阅读要求在15分钟内读完一篇1200词左右的文章，完成10题。

快速阅读中的10个题目中，前7个为正误判断，后3个为填空题。

总共占总量的10%的比例。

托福听力tpo41lecture1、2、3、4原文+题目+答案+译文Lecture1 (2)原文 (2)题目 (4)答案 (5)译文 (6)Lecture2 (7)原文 (7)题目 (9)答案 (11)译文 (12)Lecture3 (13)原文 (13)题目 (16)答案 (18)译文 (18)Lecture4 (20)原文 (20)题目 (22)答案 (24)译文 (24)Lecture1原文FEMALE PROFESSOR:Many organisms have developed the ability to survive in harsh environmental conditions—extreme heat or cold,or,very dry conditions....Like, plants in the desert—your textbook doesn’t have much about the specifics on desert plants,but I think that desert plants are great examples of specialized adaptations to extreme environmental conditions.So with desert plants,there are basically three different adaptive strategies.And I should point out that these strategies are not specific to any particular species—many different species have developed each of the adaptations.So,first off,there are succulent plants.There are many different species of succulent plants,but they all can absorb and store a lot of water.Obviously,opportunities to get water in the desert are few and far between.Generally,rains are light and short,so the rain doesn’t seep too far down into the soil…and there's a limited window of time for any plant to get the water before it evaporates.But succulent plants have a spread-out and shallow root system that can quickly pull in water from the top inch of soil,though the soil has to be saturated,since succulents aren't good at absorbing water from soil that’s only a little moist.Succulent plants also are well suited to retaining water—important in an environment where rainy days are rare.Succulent plants can store water in their leaves,in their stems,or in their roots.And to keep that moisture from evaporating in the hot desert sun,most succulent plants have a waxy outer layer that makes them almost waterproof when their stomates are closed.They also preserve water by minimizing their surface area—the more of the plantthat’s out in the sun,the more potential there is to lose stored-up water—and that means that most succulent plants have few,if any,leaves.Now besides succulent plants,there are also drought-tolerant plants. Drought-tolerant plants are like bears in a way.You know how bears mostly sleep through the winter?They can survive without eating because their metabolism slows down.Well,drought-tolerant plants also go into a dormant state when resources—in their case,water—runs short.A drought-tolerant plant can actually dry out without dying.I said before that most desert rains are light and brief,but occasionally there's a heavy one.Drought-tolerant plants revive after one of these significant rainfalls—and they're able to absorb a good bit of the rainfall due to their deep roots.Actually the root system for drought-tolerant plants is more extensive than the root systems of many plants that live in wetter climates.Drought-tolerant plants can even absorb water from relatively dry soil because of their deep roots,in contrast to succulent plants.The third adaptive strategy is to avoid the drought conditions altogether.Yes,there are plants that do this—annual plants.An annual plant will mature and produce seeds in a single season that will become the next generation of annual plants.In desert conditions,annual plants grow in the fall or spring to avoid the heat of summer and the cold of winter.Of course,these plants could face a serious problem if a particular fall or spring happened to be very dry—they would have difficulty growing and could die before producing seeds.But they have a mechanism to prevent one year of low rainfall from wiping them out. Not all seeds an annual plant puts out will grow the following year.Some seeds remain dormant in the ground for several years.It's a type of insurance that protects the annual plants from a season of poor growing conditions,of unfavorable weather.题目1.What is the lecture mainly about?A.The growth rates of plants in different geographical regionsB.Different ways that plants have adapted to desert environmentsC.The different mechanisms that plant roots use to absorb waterD.Different kinds of succulent plants2.What are two features of succulent plants that help them survive in deserts?[Click on2answers.]A.Succulent plants store water in their leaves and stems.B.Succulent plants become dormant until the next rainfall.C.Succulent plants have short stems.D.Succulent plants have few leaves.3.Why does the professor mention bears?A.To remind students of information from a previous lectureB.To point out a feature common to all desert plantsC.To reinforce a point about drought-tolerant plantsD.To help students understand the concept of adaptation4.What is one ability that drought-tolerant plants have that succulent plants do not have?A.The ability to absorb water from dry soilB.The ability to absorb water through their leavesC.The ability to prevent moisture from being lost through their leavesD.The ability to shed leaves5.Why can annual plants grow in a desert even after a year of no rainfall?A.Annual plants have an extensive root system that can absorb water from far away.B.Annual plants produce seeds all year long.C.Seeds of annual plants can store water for a long time.D.Seeds of annual plants can survive in the ground for a long time without water.5.Listen again to part of the lecture.Then,answer the question.(PROFESSOR)The third adaptive strategy is to avoid the drought conditions altogether.Yes,there are plants that do this.Why does the professor say this: (PROFESSOR)Yes,there are plants that do this.A.To correct a previous statementB.To acknowledge a potentially surprising factC.To anticipate the types of questions that students might have about the topicD.To make sure that students are paying attention答案B ADC AD B译文教授：许多生物已经发展了在恶劣环境中生存的能力：酷热、严寒，或者非常干燥的环境。

托福独立口语题型趋势之“二选一”与“三选一”为了帮助大家备考托福口语，对口语题型有一个深入的了解，下面小编给大家带来托福独立口语题型趋势之“二选一”与“三选一”，来看看吧！托福独立口语题型趋势之“二选一”与“三选一”ETS总是不断地给我们惊喜，or maybe惊吓…总之，今年的托福界不算太安静。

先不说阅读、听力考试的新招让考生们猝不及防，就说说我们口语考试，题目类型和内容的改变已经让人渐渐遗忘了那个题型总是很固定，话题的重复率也总是很高，大家彼此都有些拘谨和纯真的年代。

大家都很熟悉二选一的题型，它是Task 2的主要题型，通常是给出两个不同的做法或想法，让考生选择倾向的一个并解释。

这个看似平常的题型却是很多同学的软肋，常常选出一个来却只能简单回答几句原因，没法有力地支持自己的选择。

在考官看来，就是没有完成考题所要求的任务，并且没法证明自己展开话题的能力。

除此之外，三选一的题型今年火爆Task1,占据绝对主导地位。

截止到4月15日，大陆考区一共有9场考试，其中有7场考试的Task 1都是三选一的题型，这就意味着这种题型已经代替传统的“描述人、物、事、地”的题型，而且会一直持续到下半年。

所以下半年有考试计划的考生要引起相当的重视，要坚决攻克这种题型，掌握答题要领，取得理想的分数。

所以接下来，我们就使用今年的真题，来讲讲如何回答“二选一”与“三选一”的题目。

题目考查重点分析可以看到，Task 1的三选一题和Task 2的二选一题各出现了7次，是非常高频的。

这就意味着如果你想在两三个月内刷分的话，你会不断的遇到这种题型。

所以如果你不擅长做这样的题，那么就很难达到你的目标分数了。

因此，我们有必要来看看这些题具体考察什么，以及我们需要怎么做。

考察重点：选取自己倾向的选项，并用证据来详细地解释支持自己的选择。

我们同学往往都败在了使用证据来详细地解释自己的选择。

而且还有很大一部分同学总是对这类问题充满了疑惑：我的原因说几条好呢?只说我选择的这一个选项的原因吗?那其他的选项我还用不用提?我在说原因的时候只能从正面来说吗?我可以说其他选项的不好吗?我blablabla~~~想必这些问题也一直围绕在各位一线教师身边。

托福听力tpo61lecture1、2、3原文+题目+答案+译文Lecture1 (1)原文 (1)题目 (3)答案 (5)译文 (5)Lecture2 (7)原文 (7)题目 (9)答案 (11)译文 (11)Lecture3 (13)原文 (13)题目 (15)答案 (17)译文 (17)Lecture1原文Listen to part of a lecture in a sociology class.Sociology is really a cross disciplinary field.We find that elements of biology, psychology,and other sciences often overlap as we study particular phenomena.So let me introduce a concept from cognitive psychology.Okay,let's say someone asks you to look at a list and memorize as many items on it as you can.Most of us are able to remember,on average,seven items.There are several variations of this memory test.And the results consistently show that the human limit for short term memoryis seven bits of Information.This limit is called channel capacity.Channel capacity is the amount of information that can be transmitted or received over a specific connection,like our brain and the channel capacity for our short-term memory.It has some interesting real-life implications,like phone numbers.Local numbers here in the United States all have seven digits,because the phone companies realized early on that longer numbers would lead to a lot more wrong numbers being dialed.But the idea of channel capacity doesn't apply just to our cognitive abilities.It also affects our relationships with people around us.Psychologists talk about sympathy groups.These are the people,close friends,family to whom we devote the most time.We call or see them frequently,we think about them,worry about them.And studies show for each of us,the size of that group is about10to15people.But why so small?sure.Relationships take time and emotional energy.And most of us don't have unlimited amounts of either.But what if there's another reason?what if it's our brain that setting the limit?And in fact,there's evidence that indicates that our social channel capacity may actually be a function of our brain size,or more accurately,the size of our neocortex.The neocortex is the frontal region in the brain of mammals that's associated with complex thought.Primates have the largest neocortex is among mammals,but among different primate species,humans,apes,baboons, neocortex size varies.A lot of theories have been proposed for these variations.Like maybe it's related to the use of tools,but no theories ever seemed like a perfect explanation.Until the late1990s,what an anthropologist named Robin Dunbar published an article about his studies of primates.Dunbar theory is that if you look at any particular species of primate,you'll find that if it has a larger neocortex that it lives in a larger social group.Take human beings,we have the largest neocortices and we have the largest number of social relationships.So we've said that our sympathy group is10to15people.What about our other relationships other than family and close friends,such as those that occur in the workplace will call these social groups as opposed to sympathy groups?How many relationships can we handle there?Those relationships aren't as involved,so we can handle more of them.But is there an upper limit?well,Dunbar says that there is,and he developed an equation to calculate it.His equation depends on knowing the ratio between the size of the neocortex and the size of the whole brain.That is of the whole brain,what percentage of it is taken up by the neocortex?Once you know the average percentage for any particular species,the equation predicts the expected maximum social group size for that species.For humans,that number seems to be about150. So according to Dunbar’s equation,our social groups probably won't number more than150people.Now,Dunbar’s hypothesis isn't the kind of thing that's easy to confirm in a controlled experiment,but there is anecdotal evidence to support it.As part of his research,Dunbar reviewed historical records for21different traditional hunter gatherer societies.And those records showed that the average number of people in each village was just under150,148.4to be exact.Dunbar also worked with biologists to see if his hypothesis applies to other mammals besides primates. When they looked at meat eating mammals,carnivores,they found that the ones with a larger neocortex also have a bigger social group.And the number of individuals in that group is predicted by Dunbar’s equation supporting his hypothesis. But when they looked at insectivores,mammals that eat insects,the results were inconsistent.The data didn't disprove Dunbar’s hypothesis,but wasn't a nice,neat match like the carnivore studies,which isn't totally surprising.Insectivores are hard to observe,since many of them only come out at night or they spend a lot of time underground.So,we know a lot less about their social relationships.题目1.What is the lecture mainly about?A.The role that the neocortex plays in human memoryB.The connection between neocortex size and social relationships in mammalsC.Various studies that compare social group sizes in humans and other mammalsD.Ways that humans can expand the size of their social groups2.Why does the professor discuss the length of some telephone numbers?A.To show that real-world applications are informed by cognitive psychologyB.To point out an exception to a well-known principle about memoryC.To explain why telephone numbers are used in tests of memoryD.To explain why people often dial the wrong telephone number3.What does the professor imply about the size of a person's sympathy group?A.It closely matches the size of the person's family.B.It becomes larger when a person learns how to feel compassion for others.C.It may not be something a person makes a conscious decision to control.D.It may not be as predictable as the size of the person's social group.4.What did Dunbar's study of the records of some traditional hunter-gatherer societies indicate?A.Hunter-gatherer societies were the first to form social groups.B.Tool usage by humans is related to social group size.C.There is a maximum social group size for humans.D.Hunter-gatherers tend to have smaller-sized social groups.5.What does the professor say that biologists discovered in their research of animals other than primates?A.Dunbar's hypothesis accurately predicts social group sizes for all animals.B.Social group sizes of carnivores are more difficult to predict than those of insectivores.C.Data on insectivore behavior neither support nor contradict Dunbar's hypothesis.D.The size of an animal's neocortex is affected by its diet.6.Why does the professor say this:But why so small?sure.Relationships take time and emotional energy.And most of us don't have unlimited amounts of either.A.To encourage students to spend more time developing relationshipsB.To emphasize that her point is based on personal experienceC.To indicate that she realizes that the students already know the answer to her questionD.To suggest that there is more than one possible response to her question答案B AC C C D译文请听社会学课上的部分内容。