2019英语四级阅读理解模拟题及解析(18)

2019年下半年大学英语四级模拟试卷及答案：快速阅读(Skimming and Scanning)Directions： In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1. For questions 1-7, choose the best answer from the four choices marked [A], [B], [C] and [D]. For question 8-10, complete the sentences with the information given in the passage.Animals on the MoveIt looked like a scene from “Jaws” but without the dramatic music. A huge shark was slowly swimming through the water, its tail swinging back and forth like the pendulum of a clock.Suddenly sensitive nerve ending in the shark’s skin picked up vibrations of a struggling fish. The shark was immediately transformed into a deadly, efficient machine of death. With muscles taut, the shark knifed through the water at a rapid speed. In a flash the shark caught its victim, a large fish, in its powerful jaws. Then, jerking its head back and forth, the shark tore huge chunks of flesh from itsvictim and swallowed them. Soon the action was over.Moving to SurviveIn pursuing its prey, the shark demonstrated in a dramatic way the important role of movement, or locomotion, in animals.Like the shark, most animals use movement to find food. They also use locomotion to escape enemies, find a mate, and explore new territories. The methods of locomotion include crawling, hopping, slithering, flying, swimming, or walking.Humans have the added advantage of using their various inventions to move about in just about any kind of environment. Automobiles, rockets, and submarines transport humans from deep oceans to as far away as the moon. However, for other animals movement came about naturally through millions of years of evolution. One of the most successful examples of animal locomotion is that of the shark. Itsability to quickly zero in on its prey has always impressed scientists. But it took a detailed study by Duke University marine biologists S. A. Wainwright, F. Vosburgh, and J. H. Hebrank to find out how the sharks did it. In their study the scientists observed sharks swimming in a tank at Marine land in Saint Augustine, Fla. Movies were taken of the sharks’ movements and analyzed. Studies were also made of shark skin and muscle.Skin Is the KeyThe biologists discovered that the skin of the shark is the key to the animal’s hi gh efficiency in swimming through the water. The skin contains many fibers that crisscross like the inside of a belted radial tire. The fibers are called collagen fibers. These fibers can either store or release large amounts of energy depending on whether the fibers are relaxed or taut. When the fibers are stretched, energy is stored in them the way energy is stored in the string of abow when pulled tight. When the energy is released, thefibers become relaxed.The Duke University biologists have found that the greatest stretching occurs where the shark bends its body while swimming. During the body’s back and forth motion, fibers along the outside part of the bending body stretch greatly. Much potential energy is stored in the fibers. This energy is re leased when the shark’s body snaps back the other way.As energy is alternately stored and released on both sides of the animal’s body, the tail whips strongly back and forth. This whip-like action propels the animal through the water like a living bullet.Source of EnergyWhat causes the fibers to store so much energy? In finding the answer the Duke University scientists learnedthat the shark’s similarity to a belted radial tire doesn’t stop with the skin. Just as a radial tire is inflated bypre ssure, so, too, is the area just under the shark’s collagen “radials”. Instead of air pressure, however, the pressure in the shark may be due to the force of the blood pressing on the collagen fibers.When the shark swims slowly, the pressure on the fibers is relatively low. The fibers are more relaxed, and the shark is able to bend its body at sharp angles. The animal swims this way when looking around for food or just swimming. However, when the shark detects an important food source, some fantastic involuntary changes take place.。

2019 大学英语四级阅读理解模拟试题及剖析(19) 【阅读练习】Americans are proud of their variety and individualty, yetthey love and respect few things more than a uniform. Whyare uniforms so __1__ in the United States?Among the arguments for uniforms, one of the first isthat in the eyes of most people they look more __2__ thancivilian( 百姓的 ) clothes. People have become conditioned to__3__ superior quality from a man who wears a uniform. The television repairman who wears a uniform tends to __4__ moretrust than one who appears in civilian clothes. Faith in the__5__ of a garage mechanic is increased by a uniform. What an easier way is there for a nurse, a policeman, a barber, or awaiter to __6__ professional identity( 身份 ) than to step out of uniform? Uniforms also have many __7__ benefits. They save on other clothes. They save on laundry bills. They are often more comfortable and more durable than civilian clothes.Primary among the arguments against uniforms is theirlack of variety and the consequent loss of __8__ experienced by people who must wear them. Though there are many types of uniforms, the wearer of any particular type is generallystuck with it, without __9__, until retirement. When peoplelook alike, they tend to think, speak, and act __10__, onthe job at least.[A]skill[B]popular[C]get[D]change[E]similarly[F]professional[G]character[H]individuality[I]inspire[J]differently[K]expect[L]practical[M]recall[N]lose[O]ordinaryANSWERS：1.选 B)。

2019年英语四级阅读理解练习题及答案解析（8）2019年英语四级阅读理解练习题及答案解析(8)When a consumer finds that an item she or he bought isfaulty or in some other way does not live up to the manufacturer's claims, the first step is to present the warranty, or any other records which might help, at the store of purchase. In most cases, this action will produce results. However, if it does not, there are various means the consumer may use to gain satisfaction. A simple and common method used by many consumers is to complain directly to the store manager. In general, the “higher up” his or h er complaint, the faster he or she can expect it to be settled. In such a case, it is usually settled in the consumer's favor, assuming he or she has a just claim. Consumers should complain in person whenever possible, but if they cannot get to the place of purchase, it is acceptable to phone or write the complaint in a letter.Complaining is usually most effective when it is done politely but firmly, and especially when the consumer can demonstrate what is wrong with the item in question. If this cannot be done, the consumer will succeed best by presenting specific information as to what is wrong, rather than by making general statements. For example, “The left speaker does not work at all and the sound coming out of the rightone is unclear” is better than “This stereo does not work”. The store manager may advice the consumer to write to the manufacturer. If so, the consumer should do this, stating the complaint as politely and firmly as possible. If a polite complaint does not achieve the desired result, the consumer can go to a step further. She or he can threaten to take theseller to court or report the seller to a private or public organization responsible for protecting consumer's rights.1. When a consumer finds that his or her in it, thefirst thing he or she should do is to ____.A) complain personally to the managerB) threaten to take the matter to courtC) write a firm letter of complaint to the store of purchaseD) show some written proof of the purchase to the store2. How can a consumer make his or her complaint more effective, according to the passage?A) Explain exactly what is wrong with the item.B) Threaten to take the seller to court.C) Make polite and general statements about the problem.D) Avoid having direct contact with the store manager.3. According to the passage, which of the following is suggested as the last alternative that consumers may turn to?A) Complain to the store manager in person.B) Complain to the manufacturer.C) Write a complaint letter to the manager.D) Turn to the Consumers’ Rights Protection Organization for help.4. The phrase “live up to” in this context means ____.A) meet the standard ofB) realize the purpose ofC) fulfill the demands ofD) keep the promise of5.The passage tells us ____.A) how to settle a consumer’s complaint about a faulty itemB) how to make an effective complaint about a faultyitemC) how to avoid buying a faulty itemD) how to deal with complaints from customers答案与解析：1. D当顾客发现自己所购买的商品有问题时，他所做的第一件事就是出示在商场购物的凭具。

天童美语2019年6月英语四级阅读模拟题及详解答案(共12页)--本页仅作为文档封面，使用时请直接删除即可----内页可以根据需求调整合适字体及大小--Sport is not only physically challenging, but it can also be mentally challenging. Criticismfrom coaches, parents, and other teammates, as well as pressure to win can create an excessiveamount of __1__ or stress for young athletes. Stress can be physical, emotional, or psychologicaland research has indicated that it can lead to burnout. Burnout has been described as __2__ orquitting of an activity that was at one time early years of development are __3__ years for learning about oneself. The sport settingis one where valuable experiences can take place. Young athletes can, for example, learn how to__4__ with others, make friends, and gain other social skills that will be used throughout their and parents should be aware, at all times, that their feedback to youngsters can __5__affect their children. Youngsters may take their parents’ and coaches’ criticisms to heart and find aflaw(缺陷) in and parents should also be __6__ that youth sport participation does not become workfor children. That outcome of the game should not be more important than the __7__ of learning thesport and other life lessons. In today’s youth sport setting, young athletes may be worrying moreabout who will win instead of __8__ themselves and the sport. Following a game many parents andcoaches __9__ on the outcome and find fault with youngsters’ performances. Positive reinforcementshould be provided regardless of the outcome. Research indicates that positive reinforcement motivatesand has a greater effect on learning that criticism. Again, criticism can create __10__ levels of stress, which can lead to burnout.[A]process[B]high[C]enjoying[D]anxiety[E]settle[F]cautious[G]cooperate[H]greatly[I]dropping[J]hardly[K]intense[L]focus[M]aspiration[N]critical[O]procedure参考答案：Here’s the Totally Amazing Wonder Material That Could Revolutionize Technologythe technology industry,every new product or service seems to come with the promise that it is an innovation with the potential to change the (石墨烯)，a form of carbon，might actually do just that.B.“Graphene is a wonderful material，”Jeanie Lau，a professor of physics at the University of California at Riverside，told Fortune.“It conducts heat 10 times better than copper and electricity 100 times better than silicon，is transparent like plastic，extremely lightweight,extremely strong,yet flexible and the past decade，it has taken the scientific and technology communities by storm，and has become the most promising electronic material to supplement or replace silicon.”has already found its way into a number of compelling applications，Lau instance，“since it is both transparent and electrically conductive—two attributes rarely found in the same material in nature—it has tremendous potential as the transparent electrode in ;solar cells，and touch screens，”she explained.“Companies such as Samsung that invest heavily in this area have already secured patents，produced prototypes，and are expected to bring products to market in a few years.”Wearable electronic devices，aviation components，broadband photodetectors(光电检测器)，radiation-resistant coatings，sensors，and energy storage are among numerous other areas of active said.many researchers and investors，the ultimate application is graphene-based transistors，the building blocks of modem getting there may take some time.A child of graphiteproduced in a lab back in 2004，graphene is essentially a single layer of pure carbon atoms bonded together in a honeycomb lattice so thin it’s actually considered two-dimensional.“We generally regard anything less than 10 layers of graphene as graphene;otherwise，it’s graphite，”said Aravind Vijayaraghavan，a lecturer in nanomaterials at the University of Manchester.“graphene”is a bit of an umbrella term.“To oversimplify,there are two major types of graphene，”Michael Patterson，CEO of Graphene Frontiers，first：“Nanoplatelets，”which are powders or flakes made from have been around for a while and are“not really super-sexy,”Patterson said.“You mix them into polymers(聚合物)or inks or rubbers to make them conductive.”In flake form，graphene is already on its way to becoming a commodity,Patterson other type—in sheet or film form—is where graphene’s biggest promise sheets have“incredible potential for electronics，”Patterson the near term，that potential may manifest in situations where the quantity requirements are“not that great”and where quality or conductivity doesn’t have to be as high，such as in basic touch-screen applications，he that use graphene in this way could arrive to market in the next six to 1 2 months.a little further out，graphene can be employed in membranes used for water already has a patented product known as Perforene.“It’s real and it works，but it won’t be economically viable until the product reaches an industrial scale where the cost is measured in pennies per square inch”rather than dollars or tens of dollars per square inch，Patterson explained.“That’s where we’re working today.”‘It’s expensive and low-capacity’H. But use of graphene in semiconductors—the technology’s Holy Grail—is likely a decade away.“Many of the challenges presented by graphene are common to most new materials，”Paul Smith,a patent associate with the Intellectual Property Law Group at Fenwick & West，told Fortune.“The trick is figuring out how to synthesize graphene in a way that first is manufacturable beyond lab scale;second，preserves the desirable properties of the material;and third，can be integrated into a product or technology.”graphene in sheet form is considerably more expensive and time-consuming than producing graphene the latter typically involves a“quick and dirty”process by which bulk graphite is disassembled into millions of tiny pieces，Lau explained，large sheets of graphene are carefully“grown”on substrates(基板)such as copper，germanium，or silicon carbide.J. Graphene sheets are also prone to defects and“very difficult to make in good quality,”Ron Mertens，owner and editor of ， capacity is also very limited.“There are thousands of small companies that can make graphene，but it’s expensive and low-capacity,”Mertens wafer measuring one inch in diameter,for instance，costs about$1 00，he added.even thornier obstacle on the way to graphene transistors is the fact that the material has no“band gap，”an essential property that allows transistors to be turned on and off without leaking electronic charge in the“off”state，said Elias Towe，a professor of electrical and computer engineering at Carnegie Mellon University.L.“Band-gap engineering has been and remains the biggest challenge in the development of graphene transistors and computer chips.”Lau requires controlling the material almost down at the atomic level，and“that’s really pushing the edges of existing technology,”Patterson said.“In 10 years，we’11 start to see these problems solved.”‘It is largely a matter of time’graphene is to succeed as a replacement for silicon，every unit of cost and performance will make a difference，Towe said.N.“Silicon is hard to displace，with all the billions dollars of investments made in manufacturing infrastructure，”he said.“A replacement for silicon has to offer extraordinary performance at extremely rock-bottom cost to compel industry to change its way.”graphene is just 10 years old—in contrast,use of silicon in transistors dates to the early 1950s—considerable progress has already been example，the largest graphene sheet was produced by hand in a laboratory eight years ago;its width wasless than that of a human hair.“Nowadays，roll-to-roll printing of graphene sheets up to 1 00 meters long has been achieved，”Lau said.“With the increasing interest，investment，and research in graphene-based technology,I think it is largely a matter of time before the economy of scale kicks in and truly low-cost，large-scale production ofhigh-quality graphene is accomplished，”she added.is the powder-or flake-type of graphene that has been used for some time to make conductors and that is being launched on the market.encourage industry to replace silicon with graphene，it is necessary for graphene to provide high property at an extremely low expense.graphene flakes are roughly processed with bulk graphite，graphene sheets are carefully made on substrates like copper，germanium，or silicon carbide.the past ten has become a hot topic among the scientific and technology groups.won’t come into the market before it can be manufactured at a very low cost.of a much younger age than silicon，great progress has been made in graphene;and with ever increasing interest，investment and research in graphene technology,it’s probable to manufacture cost- effective graphene of high quality.has been attempted to be used for plenty of noticeable applications.it still needs to take ten years for graphene to be used in semiconductors，which lies at the heart of the technology.today’s technology,it is still impossible to control material down at the atomic level.Towe pointed out that having no“band gap”，the dispensable feature of transistors，makes it more difficult to produce graphene transistors.is the powder-or flake-type of graphene that has been used for some time to make conductors and that is being launched on the market.纳米片是粉末状或者薄片状的石墨烯，被用于制作导体已经有一段时间了，而且开始被推向市场。

但是这些障碍正在逐渐消除,部分原因是全球的期刊和基金机构正在鼓励科学家将其研究数据 公开。 去年,伦敦皇家学会在其报告中表示,科学家需要“ 扭转数据被视为私人专利的研究风气”。 基金机构注意到,用公共资金支付的数据应该是公共信息,科学界正在认识到,现在可以以前所未有 的数字化方式共享数据。 为满足日益增长的需求,各种服务迅速发展,使得在线发布研究成果更容 易,并使其他研究人员能够发现和引用它们。
B) benefits sharers and users alike
C) makes researchers successful
D) saves both money and labor
3. C) 。 推断题。 根据题干中的 hinder 初步定 位在第三段第一句,But the barriers are disappearing 中 barriers 和 hinder 意 义 相 同, 都 为 “阻碍”之意。 因此我们把问题往下定位在 第三段第二句,这句话主要讲了科学家需要 “ 扭转数据被视为私人专利的研究风气” ,因 此推断出 阻 碍 数 据 共 享 的 原 因 是 科 学 家 把 数据视 为 私 人 专 利, 因 此 选 项 C) 是 正 确 答案。
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3. According to the passage, what might hinder open data sharing? A) The fear of massive copying. B) The lack of a research culture. C) The belief that research data is private intellectual property. D) The concern that certain agencies may make a profit out of it.

2019年12月大学英语四级阅读测评卷答案Reading ComprehensionSection A1.[M]raised raise在这里的意思是"养育"，the environment in which you were raised 意思是"你成长的环境"。

2.[L]psychological"psychological activity"意思是"心理活动"，全句意思是"研究基因和外部环境如何相互作用影响人心理活动的学科被称为行为遗传学"。

3.[E]contributions"make contributions to"为固定搭配，意为"为……做贡献"。

4.[A]abilities"ability to…"意思是"做某事的能力"，在此处，全句意思是"任何一篇宣称人类做出某种行为的能力是基于生物学的研究都是有争议的"。

5.[B]achieve"limitations to what you can achieve"意思是"对你所能达到的水平的限制"。

6.[N]smart此处需填一个形容词，而且用来形容人，根据题意，smart符合题意，表示"机灵，可爱"。

7.[I]extent此处填extent，主要是因为后面有to，"to the extent…"译为"……的程度"。

8.[J]indicates indicate意思是"表明，显示"。

全句意为"越来越多的科学(现象)表明基因对人类很多特征有基础作用"。

9.[G]essentially essentially的意思是"实际上，本质上"。

2019 年 6 月大学英语四级模拟真题及答案详解( 第一套)Part I Writing (25 minutes)( 请于正式开考后半小时内完成该部分，之后将进行听力考试)Directions: For this part, you are allowed 30 minutes to write an advertisement on your campus website to sell a computer you used at college. Your advertisement may include its brand, specifications/features, condition and price, and your contact information.You should write at least 120 words but no more than 180 words.Part II Listening Comprehension (30 minutes)Section ADirections: In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and questions will be spoken only once. After you hear questions, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.注意：此部分试题请在答题卡 1 上作答。

2019年6月大学英语四级仔细阅读模拟试题2019年6月大学英语四级仔细阅读模拟试题As we have seen, the focus of medical care in our society has been shifting from curing disease to preventing disease—especially in terms of changing our many unhealthy behaviors, such as poor eating habits, smoking, and failure to exercise. The line of thought involved in this shift can be pursued further. Imagine a person who is about the right weight, but does not eat very nutritious (有营养的) foods, who feels OK but exercises only occasionally, who goes to work every day, but is not an outstanding worker, who drinks a few beers at home most nights but does not drive while drunk, and who has no chest pains or abnormal blood counts, but sleeps a lot and often feels tired. This person is not ill. He may not even be at risk for any particular disease. But we can imagine that this person could be a lot healthier.The field of medicine has not traditionally distinguished between someone who is merely “not ill” and someone who is in excellent health and pays attention to the body’s special needs. Both types h ave simply been called “well.” In recent years, however, some health specialists have begun to apply the terms “well” and “wellness” only to those who are actively striving to maintain and improve their health. People who are well are concerned with nutrition and exercise, and they make a point of monitoring their body’scondition. Most important, perhaps, people who are well take active responsibility for all matters related to theirhealth. Even people who have a physical disease or handicap (缺陷) may b e “well,” in this new sense, if they make an effort to maintain the best possible health they can in the face of their physical limitations. “Wellness” may perhaps best be viewed not as a state that people can achieve, but as an ideal that people can strive for. People who are well are likely to be better able to resist disease and to fight disease when it strikes. And by focusing attention on healthy ways of living, the concept of wellness can have a beneficial impact on the ways in which people face the challenges of daily life.62. Today medical care is placing more stress on________.A) keeping people in a healthy physical conditionB) monitoring patients’ body functionsC) removing people’s bad living habitsD) ensuring people’s psycholo gical well-being63. In the first paragraph, people are reminded that________.A) good health is more than not being illB) drinking, even if not to excess, could be harmfulC) regular health checks are essential to keeping fitD) prevention is more difficult than cure64. Traditionally, a person is considered “well” if he ________.A) does not have any unhealthy living habitsB) does not have any physical handicapsC) is able to handle his daily routinesD) is free from any kind of disease65. According to the author, the true meaning of “wellness” is for people ________.A) to best satisfy their body’s special needsB) to strive to maintain the best possible healthC) to meet the strictest standards of bodily healthD) to keep a proper balance between work and leisure66. According to what the author advocates, which of the following groups of people would be considered healthy?A) People who have strong muscles as well as slim figures.B) People who are not presently experiencing any symptoms of disease.C) People who try to be as possible, regardless of their limitations.D) People who can recover from illness even without seeking medical care.参考答案：62. C 63. B 64. D 65.B 66. C。

2019年6月大学英语四级模拟真题及答案详解(第一套)Part I Writing (25 minutes)(请于正式开考后半小时内完成该部分，之后将进行听力考试)Directions:For this part, you are allowed 30 minutes to write an advertisement on your campus website to sell a computer you used at college. Your advertisement may include its brand, specifications/features, condition and price, and your contact information.You should write at least 120 words but no more than 180 words.Part II Listening Comprehension (30 minutes)Section ADirections:In this section, you will hear three news reports. At the end of each news report, you will hear two or three questions. Both the news report and questions will be spoken only once. After you hear questions, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.注意：此部分试题请在答题卡1上作答。

本文部分内容来自网络整理，本司不为其真实性负责，如有异议或侵权请及时联系，本司将立即删除！== 本文为word格式，下载后可方便编辑和修改！ ==大学英语四级CET4阅读理解考试题及答案英语作为文科科目当中的一个重要组成部分，需要记忆理解的东西比理科要多的多，所以复习的战线需要拉得更长，下面是小编为大家搜索整理的英语四级辅导练习，希望能给大家带来帮助!Japan is getting tough about recycling—and not inthe paper and plastic kind of way. Recently, thecountry requires that allelectronic goods—TVs,VCRs, stereos, and more—be recycled. But recyclingwill not beleft to consumers, instead, the devices willbe sent to the original manufacturer for properdisposal.The new law poses a few challenges to manufacturers who are now rushing to set up collectionnetworks and perfecting techniques to disassemble and recycle older products.With an eyetoward the future, they are also integrating easily recycled materials into new products.Plastics, a major component of most electronicproducts,posea particular obstacle becausetheir quality becomes worse and worsewith age,losing strengthand flexibility even ifreprocessed.NEC Corp. overcomes this problem by creating a plastics sandwich, in which thefilling is 100 percent recycled plastic and the outer layers a mixture of 14 percent recycledmaterial.The resulting plastic has sufficient strength and toughness for use as a case fordesktop PCs. The company, in cooperation with plastic maker Sumitomo Dow, has alsodeveloped a new plastic, which engineers claim retains its mechanical properties throughrepeated recycling. NEC uses the plastic, which is also flame-retardant (阻燃的) in batterycases for notebook PCs.Meanwhile, Matsushita Electric, maker of the Panasonic brand, is avoiding plastic in favor ofmagnesium (镁). Magnesium, says the company, is ideal for re cycling because it retains itsoriginal strength throughrepeated reprocessing. Matsushita has developed moldingtechniques to form magnesium into the case for a 21-inch TV. Unfortunately, the magnesiumcase and energy-saving features make the TV about twice as expensive as an ordinarymodel.The company hopes,however, that increased use of magnesium will eventually bringprices down.练习题：Choose correct answers to the question:1. According to the present regulations of Japan, the recycling of paper and plasticwill be the responsibility of______.A.. the governmentB. the manufacturersC. the consumersD. the sellers2. Which of the following is NOT the character of plastics?A. Most electronic products contain plastics.B. It retains its original strength through reprocessing.C. Recycled plastics can be integrated into new products.D. Plastics will lose flexibility after a certain period of time.3.According to the passage, the term “plastic sandwich” refers to_____.A. a kind of sandwich-shaped toy made of plasticsB. a kind of plastics with different integration in each layerC. a kind of plastics with maximum strength and flexibilityD. a kind of plastics made of 100% recycled materials4.In the passage, it is implied but NOT stated that_____.A. disposing the plastics is one of NEC Corp’s businessesB. magnesium is an ideal material for the case of TVC.21-inch TV with magnesium case isn’t very popular so far。

本文部分内容来自网络整理，本司不为其真实性负责，如有异议或侵权请及时联系，本司将立即删除！== 本文为word格式，下载后可方便编辑和修改！ ==全国英语四级阅读模拟习题附答案在当今这个学习英语风潮盛行的社会，英语似乎已经成为了我们生活中不可或缺的一部分，下面是小编为大家搜索整理的英语四级辅导练习，希望能给大家带来帮助!I’m usually fairly skeptical about any research that concludes that people are either happier or unhappier or more or less certain of themselves than they were 50 years ago. While any of these statements might be true, they are practically impossible to prove scientifically. Still, I was struck by a report which concluded that today’s children are significantly more anxious than children in the 1950s. In fact, the analysis showed, normal children ages 9 to 17 exhibit a higher level of anxiety today than children who were treated for mental illness 50 years ago.Why are America’s kids so stressed? The report cites two main causes: increasing physical isolation—brought on by high divorce rates and less involvement in community, among other things—and a growing perception that the world is a more dangerous place.Given that we can’t turn the clock back, adults can still do plenty to help the next generation cope.At the top of the list is nurturing (培育) a better appreciation of the limits of individualism. No child is an island. Strengthening social ties helps build communities and protect individuals against stress.To help kids build stronger connections with others, you can pull the plug on TVs and computers. Your family will thank you later. They will have more time for face-to-face relationships, and they will get more sleep.Limit the amount of virtual (虚拟的) violence your children are exposed to. It’s not just video games andmovies; children see a lot of murder and crime on the local news.Keep your expectations for your children reasonable. Many highly successful people never attended Harvard or Yale.Make exercise part of your daily routine. It will help you cope with your own anxieties and provide a goodmodel for your kids. Sometimes anxiet y is unavoidable. But it doesn’t have to ruin your life.练习题：Choose correct answers to the question:1.The author thinks that the conclusions of any research about people’s state of mind are ________.A. surprisingB. confusingC. illogicalD. questionable2. What does the author mean when he says, “we can’t turn the clock back” (Line 1, Para. 3)?A. It’s impossible to slow down the pace of change.B. The social reality children are facing cannot be changed.C. Lessons learned from the past should not be forgotten.D. It’s impossible to forget the past.3.According to an analysis, compared with normal children today, children treated as mentallyill 50 years ago ________.A. were less isolated physicallyB. were probably less self-centeredC. probably suffered less from anxietyD. were considered less individualistic。

2019年全国英语等级考试四级阅读理解模拟题Section IIIReading Comprehension(60 minutes)Part ADirections：Read thefollowing four texts.Answer the questions below each text by choosing[A]，[B]，[C]or[D].Mark your answers on ANSWER SHEET l.Text lNo man has been more harshly judged than Machiavelli，especially in the two centuries following his death.But he has since found many able champions and the tide hasturned.The Prince has been termed a manual for tyrants，the effect of which has been most harmful.But were Machiavelli’s doctrines really new? Did he discover them?He merely had the frankness and courage to write down what everybody was thinking and what everybody knew.He merely gives us the impressions he had received from a long and intimate inter—course with princes and the affairs of state.It was Lord Bacon who said that Machiavelli tells us what princes如。

2019年下半年大学英语四级模拟试卷及答案：深度阅读(Reading in Depth)Section ADirections： In this section, there is a passage with ten blanks. You are required to select one word for each blank from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. Please mark the corresponding letter for each item on Answer Sheet 2 with a single line through the centre. You may not use any of the words in the bank more than once.Questions 47 to 56 are based on the following passage.Wise buying is a positive way in which you can make your money go further. The way you go about purchasing an article or a service can actually ____47___ you money or can add to the cost. Take the ____48___ example of a hairdryer. If you are buying a hairdryer, you might think that you are making the ____49___ buy if you choose one whose look you like and which is also the cheapest ____50___ price. But when you get it home you may find that it takes twice as long as a more expensive ____51___ to dry your hair. The cost of the electricity plus the cost of your time could well make your hairdryer the most expensive one of all.So what principles should you ____52___ when you go out shopping? If you keep your home, your car or any valuable____53___ in excellent condition, you’ll be saving money in the long run. Before you buy a new ____54___ , talk to someone who owns one. If you can, use it or borrow it to check it suits your particular purpose. Before you buy an expensive ____55___, or a service, do check the price and what is on offer. If possible, choose ____56___ three items or three estimates.[A]possession [B]save [C]best [D]appliance [E]material[F]from [G]simple[H]with [I]in [J]element[K]model [L]item [M]easy [N]adopt [O]reasonableSection BDirections： There are 2 passages in this section. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked [A], [B], [C]and [D].You should decide on the best choice and mark the corresponding letter on Answer Sheet 2 with a single line through the centre.Passage OneQuestions 57 to 61 are based on the following passage.Friendship is one of the basic bonds between human beings. While the characteristics of friendship might vary from one country to another, people from all cultures not only enjoy friends but need them.Many studies have shown that teenagers who have no friends often suffer from psychological disorders. It has been shown that teenagers, perhaps more than any other agegroup, need companionship and a sense of belonging. The negative consequences of loneliness have also been observed among the elderly. The death of a spouse often leaves a widow or a widower totally bereft. If, however, they are surrounded by friends and relatives and if they are able to articulate their feelings, they are more likely to recover from their grief.“No man is an island.” In other words, we are all parts of society. We all need the love, admiration, respect and moral support of other people. If we are fortunate, our friends will provide us with all of these necessary aspects of life.As most people observe, there are many levels of friendship. The degree of intimacy of friendship varies depending on the personality of the individuals involved and the context of the relationships. Extroverts enjoy being surrounded by many people whereas introverts are perhaps content with fewer but more intense friendships.Everyone is not equally open with all their friends. The degree of intimacy is determined by many factors. Close friends can be formed at any stage in one’s life but they are usually very rare. Not very many people have more than a few really close friends. Irrespective of the level of intimacy, all friendships are based on reciprocity, honesty and a certain amount of love and affection.57.The second paragraph implies that_____________ .[A]teenagers without friends will suffer from psychological problems。

2019四级阅读理解练习题及解析(1)There are people in Italy who can’t stand soccer. Not all Canadians love hockey. A similar situation exists in America, where there are those individuals you may be one of them who yawn or even frown when somebody mentions baseball. 『Baseball to them means boring hours watching grown men in funny tight outfits standing around in a field staring away while very little of anything happens.』① They tell youit’s a game better suited to the 19th century, slow, quiet, gentlemanly. These are the same people you may be one of them who love football because there’s the sport that glorifies “the hit”.By contrast, baseball seems abstract, cool, silent, still.On TV the game is fractured into a dozen perspectives, replays, close瞮ps. The geometry of the game, however, is essential to understanding it. You will contemplate the game from one point as a painter does his subject; you may, of course, project yourself into the game. It is in this projection that the game affords so much space and time for involvement. T he TV won’t do it for you.Take, for example, the third baseman. You sit behind the third base dugout and you watch him watching home plate. His legs are apart, knees flexed. His arms hang loose. He does a lot of this. The skeptic still cannot think of any other sports so still, so passive. 『But watch what happens every time the pitcher throws： the third baseman goes up on his toes, flexes his arms or bring the glove to a point in frontof him, takes a step right or left, backward or forward, perhaps he glances across the field to check his first baseman’s position.』② Suppose the pitch is a ball. “Nothing happened,” you say. “I could have had my eyes closed.”The skeptic and the innocent must play the game. Andthis involvement in the stands is no more intellectual than listening to music is. Watch the third baseman. Smooth the dirt in front of you with one foot; smooth the pocket in your glove; watch the eyes of the batter, the speed of the bat, the sound of horsehide on wood. If football is a symphony of movement and theatre, baseball is chamber music, a spacious interlocking of notes, chores and responses.1. The passage is mainly concerned with ______.A. the different tastes of people for sportsB. the different characteristics of sportsC. the attraction of footballD. the attraction of baseball2. Those who don’t like baseball may complain that______.A. it is only to the taste of the oldB. it involves fewer players than footballC. it is not exciting enoughD. it is pretentious and looks funny3. The author admits that ______.A. baseball is too peaceful for the youngB. baseball may seem boring when watched on TVC. football is more attracting than baseballD. baseball is more interesting than football4. By stating “I could have had my eyes closed. ” the author means (4th paragraph last sentence)：A. The third baseman would rather sleep than play the game.B. Even if the third baseman closed his eyes a moment ago, it could make no different to the result.C. The third baseman is so good at baseball that he could finish the game with eyes closed all the time and do his work well.D. The consequent was too bad he could not bear to see it.5. We can safely conclude that the author ______.A. likes footballB. hates footballC. hates baseballD. likes baseball词汇与短语1. dugout n. 棒球场边供球员休息的地方2. pitcher n. 投手3. symphony n. 交响乐4. chamber n. 室内5. contemplate vt.沉思，注视长难句解析①【解析】此句的主干是“Baseball?means?watching?”，其中“in funny tight outfits”用来修饰“grown men”,“standing?”和“staring”用来做“grown men”的定语。

2019 年 6 月大学英语四级真题及答案解析完整版Part I Writing(30 minutes)请于正式开考后半小时内完成该部分，之后将进行听力考试。

For this part, you are allowed 30 minutes to write a news report to your school newspaper on avolunteer activity organized by your Student Union to help elderly people in the neighborhood .Youshould write at least 120 words not more than 180 words.【范文】Young Volunteers Visited a Nursing HomeVolunteers from our university visited a nursing home located in Hangzhou on June 14th, which was highly appraisedby the elderly there.Upon the students ’ arrival, tears of joy glistened in the seniors ’ eyes when the young students presewell-prepared gifts. Then, the students talked to them one-on-one with kindness. Both the youth andthe aged were willing to share their life stories, immersing in an atmosphere of joy. When it wastime for the youngsters to leave, the elderly thanked them over and over again. And the volunteersexpressed that they learned a lot and were all stunned by the optimism their elderly friends had fortheir future.According to Winston Churchill, a British statesman, “ we make a living by what we get, but we makea life bywe give. ” The visit not only enriches the seniors ’ daily life, but also provides the youth with an opportunity to learnimportant life lessons from the elderly residents. By Aria, school newspaper【点评】写作试题是考查考生综合运用英语语言的能力，四级写作试题对考生的要求也越来越高。

2019年6月四级《仔细阅读》模拟试题2019年6月四级《仔细阅读》模拟试题The University of California was chartered in 1868 and established at Berkeley in 1875. South Hall, an ivy-covered Gothic-revival building of red brick, is the only survivor of the nineteenth century campus buildings. Today, the Berkeley campus is the senior member of the nine-campus University of California System. Berkeley offers a full range of academic majors in programs. In a national survey published in fall 1992, Berkeley placed highest of all public universities in ranking that included five attributes： reputation, selectivity, faculty resources, financial resources, and student satisfaction. More students who earn bachelor's degrees at Berkeley complete Ph. D's than graduates of any other university in the country.Undergraduate students can choose from more than 5,000 different courses and over 100 majors or they can designtheir own individual majors. The graduate division offers professional and academic degrees in more than 100 majors. Aiding students in their course work is a campus network of twenty-four libraries, including one especially for undergraduates. There are also many support facilities and services available, such as the Student Learning Center,financial aid counseling, housing assistance, graduate and professional school advising, and career placement assistance. The 1, 200-acre campus stretches from downtown Berkeley through wooded hills that overlook San Francisco Bay. The city of Berkeley (population 105,000) offers the livelybackground of one of America's more culturally diverse and politically adventurous small cities. The surrounding San Francisco Bay area provides an abundance of recreational and cultural events.26. In Paragraph One, the author mainly statesabout______.A. the greatness and wonderfulness of the Berkeley campusB. the Berkeley campus' ranking in all the public universitiesC. the history and the present situation of the Berkeley campusD. the overall impression of the Berkeley campus27. More students have graduated from Berkeley than from any other university in gaining ______degree.A. MBA'sB. bachelor'sC. Ph. D'sD. master's28. From the essay, we can know that______.A. the Berkeley campus is the University of CaliforniaB. the Berkeley campus is only an old branch of the University of CaliforniaC. the Berkeley campus is an absolutely independent university, which is built in CaliforniaD. the Berkeley campus is an independent college.29. Which is TRUE according to the essay?A. Now the Berkeley campus is the best public university.B. You can finish bachelor's courses or Ph. D's courses but not master's courses.C. The Berkeley campus does not do well in helping students in their studies.D. The Berkeley campus is not far away from the city of San Francisco.30. The city of Berkeley is______.A. situated within the Berkeley campusB. found to be a melting pot of various culturesC. a recreational placeD. trying to increase its population参考答案：26. C 27. C 28. B 29. D 30. B。

2019年下半年大学英语四级模拟试卷及答案：快速阅读(Skimming and Scanning)Directions： In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1. For questions 1-7, choose the best answer from the four choices marked [A], [B], [C] and [D]. For question 8-10, complete the sentences with the information given in the passage.Animals on the MoveIt looked like a scene from “Jaws” but without the dramatic music. A huge shark was slowly swimming through the water, its tail swinging back and forth like the pendulum of a clock.Suddenly sensitive nerve ending in the shark’s skin picked up vibrations of a struggling fish. The shark was immediately transformed into a deadly, efficient machine of death. With muscles taut, the shark knifed through the water at a rapid speed. In a flash the shark caught its victim, a large fish, in its powerful jaws. Then, jerking its head back and forth, the shark tore huge chunks of flesh from itsvictim and swallowed them. Soon the action was over.Moving to SurviveIn pursuing its prey, the shark demonstrated in a dramatic way the important role of movement, or locomotion, in animals.Like the shark, most animals use movement to find food. They also use locomotion to escape enemies, find a mate, and explore new territories. The methods of locomotion include crawling, hopping, slithering, flying, swimming, or walking.Humans have the added advantage of using their various inventions to move about in just about any kind of environment. Automobiles, rockets, and submarines transport humans from deep oceans to as far away as the moon. However, for other animals movement came about naturally through millions of years of evolution. One of the most successful examples of animal locomotion is that of the shark. Itsability to quickly zero in on its prey has always impressed scientists. But it took a detailed study by Duke University marine biologists S. A. Wainwright, F. Vosburgh, and J. H. Hebrank to find out how the sharks did it. In their study the scientists observed sharks swimming in a tank at Marine land in Saint Augustine, Fla. Movies were taken of the sharks’ movements and analyzed. Studies were also made of shark skin and muscle.Skin Is the KeyThe biologists discovered that the skin of the shark is the key to the animal’s hi gh efficiency in swimming through the water. The skin contains many fibers that crisscross like the inside of a belted radial tire. The fibers are called collagen fibers. These fibers can either store or release large amounts of energy depending on whether the fibers are relaxed or taut. When the fibers are stretched, energy is stored in them the way energy is stored in the string of abow when pulled tight. When the energy is released, thefibers become relaxed.The Duke University biologists have found that the greatest stretching occurs where the shark bends its body while swimming. During the body’s back and forth motion, fibers along the outside part of the bending body stretch greatly. Much potential energy is stored in the fibers. This energy is re leased when the shark’s body snaps back the other way.As energy is alternately stored and released on both sides of the animal’s body, the tail whips strongly back and forth. This whip-like action propels the animal through the water like a living bullet.Source of EnergyWhat causes the fibers to store so much energy? In finding the answer the Duke University scientists learnedthat the shark’s similarity to a belted radial tire doesn’t stop with the skin. Just as a radial tire is inflated bypre ssure, so, too, is the area just under the shark’s collagen “radials”. Instead of air pressure, however, the pressure in the shark may be due to the force of the blood pressing on the collagen fibers.When the shark swims slowly, the pressure on the fibers is relatively low. The fibers are more relaxed, and the shark is able to bend its body at sharp angles. The animal swims this way when looking around for food or just swimming. However, when the shark detects an important food source, some fantastic involuntary changes take place.The pressure inside the animal may increase by 10 times. This pressure change greatly stretches the fibers, enabling much energy to be stored.This energy is then transferred to the tail, and theshark is off. The rest of the story is predictable.Dolphin Has Speed RecordAnother fast marine animal is the dolphin. This seagoing mammal has been clocked at speeds of 32 kilometers (20 miles) an hour. Biologists studying the dolphin have discovered that, like the shark, the animal’s efficient locomotion can be traced to its skin. A dolphin’s skin is made up in such away that it offers very little resistance to the waterflowing over it. Normally when a fish or other object moves slowly through the water, the water flows smoothly past the body. This smooth flow is known as laminar flow. However, at faster speeds the water becomes more turbulent along the moving fish. This turbulence muses friction and slows thefish down.In a dolphin the skin is so flexible that it bends and yields to the waviness of the water. The waves, in effect, become tucked into the skin’s folds. This allows the rest of the water to move smoothly by in a laminar flow. Where other animals would be slowed by turbulent water at rapid speeds,the dolphin can race through the water at record breaking speeds.Other Animals Less EfficientNot all animals move as efficiently as sharks and dolphins. Perhaps the greatest loser in locomotion efficiencyis the slug. The slug, which looks like a snail without a shell, lays down a slimy trail over which it crawls. It uses so much energy producing the slimy mucus and crawling over it that a mouse traveling the same distance uses only onetwelfth as much energy.Scientists say that because of the slug’s i nefficient use of energy, its lifestyle must be restricted. That is, the animals are forced to confine themselves to small areas for obtaining food and finding proper living conditions. Have humans ever been faced with this kind of problem?1.According to the passage, a shark can use movement to do something except____________.[A]to find food[B]to avoid being chased by its enemies[C]to find a new place to live[D]to show its braveness2.Examples of automobiles, rockets and submarines are used to show that _______________.[A]humans are the most clever living creatures in the world[B]human inventions enable us to travel in almost any kind of environment[C]humans are very successful in inventingtransportation tools[D]humans can’t move like other animals in any circumstances3.What is the key to the shark’s swift locomotion in water?[A]The skin. [B]The tail. [C]The muscle. [D]The jaw.4.According to the Duke University scientists, when does the shark stretch its collagen fibers to the greatest extent?[A]When moving its tail rapidly.[B]When finding its preys.[C]When staying without any movement.[D]When bending its body in swimming.5.Why is the area just under the shark’s collagenfibers similar to a belted radial tire?[A]Because it is also full of blood pressure.[B]Because it is also filled of air pressure.[C]Because it is also inflated by pressure.[D]Because it also can be used again and again.6.A laminar flow is formed when a fishswims________________.[A]slowly through the water[B]rapidly through the water[C]against the current [D]at the fastest speed in water7.Consuming the equal amount of energy as a slug does, a mouse can travel _________ as long as a slug.[A]one twelfth times[B]the same[C]12 times[D]1.2 times8.A shark finds its prey by________________.9.According to the passage, _______________can be compared to the string of a bow for both of them store energy when stretched.10.When the shark detects an important food source,_______________________take place.1.【解析】[D]属同义转换题，本题是一种排除选择题。