大学英语四级阅读理解试题及答案

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四级考试英语阅读训练题带答案

四级考试英语阅读训练题带答案四级考试英语阅读训练题(一)Humanity uses a little less than half the water available worldwide. Yet occurrences of shortages and droughts (干旱) are causing famine and distress in some areas, and industrial and agricultural by-products are polluting water supplies. Since the world’ population is e某pected to double in the ne某t 50 years, many e某perts think we are on the edge of a widespread water crisis.But that doesn’t have to be the outcome. Water shortages do not have to trouble the world—if we start valuing water more than we have in the past. Just as we began to appreciate petroleum more after the 1970s oil crises, today we must start looking at water from a fresh economic perspective. We can no longer afford to consider water a virtually freeresource of which we can use as much as we like in any way we want.Instead, for all uses e某cept the domestic demand of the poor, governments should price water to reflect its actual value. This means charging a fee for the water itself as well as for the supply costs.Governments should also protect this resource by providing waterin more economically and environmentally sound ways. For e某ample, often the cheapest way to provide irrigation (灌溉) water in the dry tropics is through small-scale projects, such as gathering rainfallin depressions (凹地) and pumping it to nearby cropland.No matter what steps governments take to provide water more efficiently, they must change their institutional and legal approaches to water sue. Rather than spread control among hundreds oreven thousands of local, regional, and national agencies that watch various aspects of water use, countries should set up central authorities to coordinate water policy.21. What is the real cause of the potential water crisis?A) The world population is increasing faster and faster.B) Half of the world’s water resources have been seriously polluted.C) Humanity has not placed sufficient value on water resources.D) Only half of the world’s water can be used.22. As indicated in the passage, the water problem ________.A) has been e某aggerated by some e某perts in the fieldB) is underestimated by government organizations at different levelsC) poses a challenge to the technology of building reservoirsD) is already serious in certain parts of the world23. According to the author, the water price should ________.A) correspond to its real valueB) be reduced to the minimumC) stimulate domestic demandD) take into account the occurrences of droughts24. The author says that in some hot and dry areas it is advisable to ________.A) build big lakes to store waterB) construct big pumping stationsC) channel water from nearby rivers to croplandD) build small and cheap irrigation systems25. In order to raise the efficiency of the water supply, measures should be taken to ________.A) centralize the management of water resourcesB) increase the sense of responsibility of agencies at all levelsC) guarantee full protection of the environmentD) encourage local and regional control of water resources四级考试英语阅读训练题答案21. D 22. A 23. C 24.C 25. B四级考试英语阅读训练题(二)We can see how the product life cycle works by looking at the introduction of instant coffee. When it was introduced, most people did not like it as well as “regular” coffee, and it took several years to gain general acceptance (introduction stage). At one point, though, instant coffee grew rapidly in popularity, and many brands were introduced (stage of rapid growth). After a while, people became attached to one brand and sales leveled off (stage of maturity).Sales went into a slight decline (衰退) when freeze-dried coffees were introduced (stage of decline).The importance of the product life cycle to marketers is this: Different stages in the product life cycle call for different strategies. The goal is to e某tend product life so that sales and profits do not decline. One strategy is called market modification.It means that marketing managers look for new users and market sections. Did you know, for e某ample, that the backpacks that so many students carry today were originally designed for the military? Market modification also means searching for increased usage among present customers or going for a different market, such as senior citizens. A marketer may re-position the product to appeal to new market sections.Another product e某tension strategy is called productmodification. It involves changing product quality, features, orstyle to attract new users or more usage from present users. American auto manufacturers are using quality improvement as one way to recapture world markets. Note, also, how auto manufacturers once changed styles dramatically from year to year to keep demand from falling.26. According to the passage, when people grow fond of one particular brand of a product, its sales will ________.A) decrease graduallyB) remain at the same levelC) become unstableD) improve enormously27. The first paragraph tells us that a new product is ________.A) not easily accepted by the publicB) often inferior to old ones at firstC) often more e某pensive than old onesD) usually introduced to satisfy different tastes28. Marketers need to know which of the four stages a product is in so as to ________.A) promote its productionB) work out marketing policiesC) speed up its life cycleD) increase its popularity29. The author mentions the e某ample of “backpacks” (Line 4, Para. 2) to show the importance of ________.A) pleasing the young as well as the oldB) increasing usage among studentsC) e某ploring new market sectionsD) serving both military and civil needs30. In order to recover their share of the world market, U.S. auto makers are ________.A) improving product qualityB) increasing product featuresC) modernizing product styleD) re-positioning their product in the market 四级考试英语阅读训练题答案26. D 27. D 28. A 29.B 30. A看完这篇文章的人还看了：1.英语四级考试阅读理解练习附答案2.四级考试英语阅读理解试题带答案3.四级英语阅读理解精选题带答案4.大学英语四级阅读理解练习题带答案5.大学英语四级考试阅读练习及答案。

(完整版)大学英语四级阅读理解试题及答案

As the pace of life continues to increase ,we are fast losing the art of relaxation. Once you are in the habit of rushing through lift,being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body.Stress is an natural part of everyday lift and there is no way to avoid it. In fact ,it is not the bad thing it is often supposed to be .A certain amount of stress is vital to provide motivation adn give purpose to life. It is only when the stress gets out of control that it can lead to poor performance and ill health.The amount of stress a person can withstand depends very much on the individual. Some people are not afraid of stress,and such characters are obviously prime material for managerial responsibilities. Others lose heart at the first signs of unusual difficulties. When exposed to stress,in whatever form,we react both chemically and physically. In fact we make choice between "fight" or "flight" and in more primitive days the choice made the difference between life or death. The crises we meet today are unlikely to be so extreme,but however little the stress,it involves the same response. It is when such a reaction lasts long,through continued exposure to stress,that health becomes endangered.Such serious conditions as high blood pressure and heart disease have established links with stress.Since we cannot remove stress from our lives(it would be unwise to do so even if we could),we need to find ways to deal with it.1.People are finding less and less time for relaxing themselves because_____.a.they do not know how to enjoy themselvesb.they do not believe that relaxation is important for healthc.they are travelling fast all the timed.they are becoming busier with their work2.According to the writer ,the most important character for a good manager is his ________.a.not fearing stressb.knowing the art of relaxationc.high sense of responsibilityd.having control over performance3.Which of the follwing statements is ture?a.We can find some ways to avoid stressb.Stress is always harmful to peoplec.It is easy to change the hagit of keeping oneself busy with work.d.Different people can withstand different amounts of stress4.In Paragraph 3, "such a reaction" refers back to_______.a."making a choice between 'flight' or 'fight'"b."reaction to stress both chemically and physically"c."responding to crises quickly"d."losing heart at the signs difficulties"5.In the last sentence of the passage,"do so " refers to ______.a."expose ourselves to stress"b."find ways to deal with stress"c."remove stress from our lives"d."established links between diseases and stress"答案：dadbcIn the 1960s, many young Americans were dissatisfied with American society. They wanted to end the Vietnam War and to make all of the people in the U.S. epual. Some of them decided to "drop out" of American society and form their own societies . They formed utopian communities , which they called "communes," where they could follow their philosophy of "do your own thing." A group of artists founded a commune in southern Colorado called "Drop City." Following the ideas of philosopher and architect Buckminster Fuller they built domeshaped houses from pieces of old cars. Other groups, such as author Ken Kesey's Merry Pranksters, the followers fo San Francisco poet Steve Gakin, and a group that called itself the Hog Farm, lived in old school huses and traveled around the United States. The Hog Farm become famous when they helped organize the Woodstock Rock Festival in 1969. Steve Gaskin's followers tried to settle down on a farm in Tennessee, but they had to leave when some members of the gruop were arrested for growing marijuana.Not all communes believed in the philosophy of "do you own thing," however . Twin Oaks , a commune founded in Virgiania in the late 1960s, was based on the ideas of psychologist B.F.Skinner. The people who lived at Twin Oaks were carefully controlled by Skinner's "conditioning" techniques to do things that were good for the community. In 1972, Italian architect Paolo Soleri began to build Arcosanti, a utopian city Arizsona where 2500 people will live closely together in one large building called an "archology" Soleri believes that people must live closely together so that they will all become one.1.Why did some young Americans decide to "drop out" of scoiety during the 1960s?a.They were not satisfied with American society.b.They wanted to grow marijuana.c.They wanted to go to the Vietnam War.d.They did not want all people to be equal.2.Where did the members of the Hog Farm commune live?a.In dome-shaped houseb.In old school husesc.On a farm inTennesseed.In an archology in Arizona3.Who gave the people of Drop City the idea to bulid dome-shaped house?a.Paolo Solerib.B.G.Skinnerc.Steve Gaskind.Buckminster Fuller4.What was the Twin Oaks commune base on ?a.The philosophy of "do your own thing"b.Virginaia in the late 1960sc.The ideas of psychologistd.The belief that people must live closely togerher.5.What is an "archology"?a.A person who studies archaeologyb.A large building where people live closely togetherc.A city in A rizonad.A technique to contorl people答案：abdcbThere are two factors which determine an individual's intelligence. The first is the sort of brain he is born with. Human brains differ considerably, some being more capable than others. But no matter how good a brain he has to begin with, an individual will have a low order of intelligence unless he has opportunities to learn. So the second factor is what happens to the individual—the sort of environment in which he is reared. If an individual is handicapped envionmentally ,it is likely that his brain will fail to develop and he will never attain the level of intelligence of which he is capable.The importance of environment in determining an individual's intellingence can be demonstrated by the case history of the identical twins, Peter and Mark X. Being identical, the twins had identical brains at birth, and their growth processes were the same. When the twins were three months old , their parents died, and they were placed in separate foster homes. Peter was reated by parents of low intelligence in an isolatedcommunity with poor educational pooprtunities.Mark was reared inthe home of well-to-do parents who had been to college. He was read to as a child , sent to good schools, and given every opportunity to be stimulated intellectually.This enviromental difference continued until the twins were in their late teens, when they were giben tesets to measure their intelligence. Mark's I.Q. was 125, twenty-five points higher than the average and fully forty points higher than his identical brother. Given equal opportunities , the twins , having identical brains,would have tested at roughly the same level.1.This selection can best be titled_________.a.Measuring Your Intelligenceb.Intelligence and Environmentc.The Case of Peter and Markd.How the brain Influences Intelligence2.The beststatement of the main idea of this passage is that _____.a.human brains differ considerablyb.the brain a person is born with is improtant in determining his intelligencec.environment is crucial in determining a person's intelligenced. persons having identical brains will have roughly the same intelligence3.According to the passage , the average I.Q.is _____.a.85b.100c.110d.1254.The case history of the twins appears to support the conclusion that _______.a.individual with identical brains seldom test at same levelb.an individual's intelligence is determined only by his enviromentck of opportunity blocks the growth of intelligenced.changes of enviroment produce changes in the structure of the brain5.This passage suggests that an individual 's I.Q.______.a.can be predicted at birthb.stays the same throuthout his lifec.can be increased by educationd.is determined by his childhood答案：bcbccAs she walked round the huge department store,Edith reflected how difficult it was to choose a suitable Christmas present for her father.She wish that he was as easy to please as her mother, who was always delighted with perfumeBesides,shoppong at this time of the year was a most disgreeable experience :people trod on yourtoes,poked you with their elbows and almost knocked you overin their haste to get to a bargain ahead of you.Partly to have a rest, Edith paused in front of a counter where some attracive ties were on display. "They are real silk," the assistant assured her, trying to tempt her. "Worth double the price." But edit knew from past experience that her choice of ties hardly ever pleased her father.She moved on reluctantly and then quite by chance, stopped where a small crowd of man had gathered round a counter. She found some good quality pipes on sale-----and the prices were very reasonable. Edith didnot hesitate for long : although her father only smoked a pipe occasionally, she knew that this was a present which was bund to please him.When she got home,with her small well-chosen present concealed in her handbag, her parents were already at the supper table. Her mother was in an especially cheerful mood, "Your father has at last to decided to stop smoking." She informed her daughter.1.Edith's father _______.a.did not like presentb.never got presentc.preferred tiesd.was difficult to choose a present for2.The assistant spoke to Edith because she seemed_______.a.attractiveb.interested in tiesc.tiredd.in need of comfort3.Edith stopped at the next counter_________.a.puroselyb.suddenlyc.unwillinglyd.accidentally4.Edith's father smoked a pipe_______.a.when he was obligedb.on social occasionsc.from time to timed.when he was delighted5.Shopping was very disagreeable at that time of the year because_______.a.coustomers trod on each other's toesb.coustomers poked each other with their elbowsc.customers knocked each otherd.customers were doing their shopping in a great hurry答案：dbdcdIf the population of the earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the planet.By the middle of the 21st century,if present trends continue, we will have used up all the oil that drives our cars,for example.Even if scientists develop new ways of feeding the human race,the crowded conditions on earth will make it necessary for lus to look for open space somewhere else. But none of the other planets in our solar system are capable of supporting life at present. One possible solution to the problem, however,has recently been suggested by American scientist, Professor Carl Sagan.Sagan believes that before the earth's resources are compleetely exhausted it will be possible to change the atmophere of Venus and so create a new world almost as large as earth itself. The difficult is that Venus is much hotter than the earth and there is only a tiny amount of water there.Sagan proposes that algae organisms that can live in extremely hot or cold atmospheres and at the same time produce oxygen,should be bred in condition similar to those on Venus.As soon as this has been done, the algae will be placed in small rockets. Spaceship will then fly to Venus and fire the rockets into the atmosphere .In a fairly short time, the alge will break down the carbon dioxide into oxygen and carbon.When the algae have done theri work, the atmosphere will become cooler,but befor man can set foot on Venus it will be neccessary for the oxygen to produce rain. The surface of the planet will still be too hot for man to land on it but the rain will eventually fall and in a few years something like earth will be reproduced on Venus.1.Inte long run, the most insoluble problem caused by population growth on earth will probably be the lack of ______.a.foodb.oilc.spaced.resources2.Carl Sagan believes that Venus might be colonized from earth because _____a.it might be possible to change its atmosphereb.its atmosphere is the same as the earth'sc.there is a good supply of water on Venusd.the days on Venus are long enough3.On Venus there is a lot of ________.a.waterb.carbon dioxidec.carbon monoxided.oxygen4.Algae are plants that can____.a.live in very hot temperaturesb.live in very cold temperaturesc.manufacture oxygend.all of the above5. Man can land on Venus only when_______.a.the algae have done their workb.the atmosphere becomes coolerc.thereis oxygend.it rains there答案：cabdd。

大学英语四级阅读理解试题及答案

大学英语四级阅读理解试题及答案（一）There are three kinds of goals: short-term,medium-range and long-term goals.Short-range goals are those that usually deal with current activities,which we can apply on a daily basis.Such goals can be achieved in a week or less,or two weeks,or possible months.It should be remembered that just as a building is no stronger than its foundation ,out long-term goals cannot amount to very munch without the achievement of solid short-term goals.Upon completing our short-term goals,we should date the occasion and then add new short-term goals that will build on those that have been completed.The intermediate goals bukld on the foundation of the short-range goals.They might deal with just one term of school or the entire school year,or they could even extend for several years.Any time you move a step at a time,you should never allow yourself to become discouraged or overwhelmed. As you complete each step,you will enforce the belief in your ability to grow adn succeed.And as your list of completion dates grow,your motivation and desire will increase.Long-range goals may be related to our dreams of the future. They might cover five years or more. Life is not a static thing.We should never allow a long-term goal to limit us or our course of action.1.Our long-term goals mean a lot__.a.if we complete our short-range goalsb.if we cannot reach solid short-term goalsc.if we write down the datesd.if we put forward some plans2.New short-term goals are bulid upon__.a.two yearsb.long-term goalsc.current activitiesd.the goals that have been completed3.When we complete each step of our goals ,__.a.we will win final successb.we are overwhelmedc.we should build up confidence of successd.we should strong desire for setting new goals4.Once our goals are drawn up,__.a.we should stick to them until we complete themb.we may change our goals as we have new ideas and opportunitiesc.we had better wait for the exciting news of successd.we have made great decision5.It is implied but not stated in the passage that ___.a.those who habe long-term goals will succeedb.writing down the dates may discourage youc.the goal is only a guide for us to reach our desinationd.every should have a goal答案：adcbc二The economy of the United states after 1952 was the econnomy of a well-fed,almost fully employed people. Despit occasional alarms, the country escaped any postwar depression and lived in a state of boom. A n economic survey of the year 1955, a typical year of the 1950’s, may be typical as illustrating the rapid economic growth of the decade. The national output was value at 10 percent above that of 1954 (1955 output was estimated at 392 billion dollars). The production of manufacturers was about 40 percent more than it had averaged in the years immediately following World War 2. The country’s business spent about 30billion dollars for new factories and machinery. National income available for spending was almost a third greater than it had been it had been in 1950. Consumers spent about 256 billion dollars; that is about 700 million dollars a day ,or about twenty-five million dollars every hour , all round the clock. Sixty-five million people held jobs and only a little more than two million wanted jobs but could not find them . Only agriculture complained that it was not sharing in the room. To some observers this was an ominous echo of the mid-1920’s . As farmer’s shre of their products declined , marketing costs rose. But there were , among the observers of the national economy, a few who were not as confident as the majority . Those few seemed to fear that the boom could not last and would eventually lead to the oppsite-depression.1. What is the best title of the passage?a. The Agriculatural Trends of 1950’sb. The Unemployment Rate of 1950’sc. U.S. Economy in the 50’sd. The Federal Budget of 19522. In Line 4 , the word “boom”could best be replaced by______.a. nearby explosionb. thunderous noisec. general public supportd. rapid economic growth3. It can be inferred the national from the passage that most people in the United States in 1955 viewed the national economy with an air of _________.a. confidenceb. confusionc. disappointmentd. suspicion4. Which of the following were LEAST satisfied with the national economy in the 1950’s?a. Economistsb. Frmaersc. Politiciansd. Steelworkers5. The passage states that incom available for spending in the U.S. was greater in 1955 than in 1950 . How much was it ?a. 60%b. 50%c. 33%d. 90%答案：cdabc三Women are also underrepresented in the administration and this is because there are so few women full professors. In 1985,Regent Beryl Milburn produced a report blasting the University of Texas System adminitration for not encouraging women.The University was rated among the lowest for the system.In a 1987 update ,Milburn commended the progress that was made and called for even more improvement.One of the positive results from her study was a System-wide program to inform women of available administrative jobs.College of Communication Associate Dean Patrica Witherspoon,said it is important that woman be flexible when it comesto relocating if they want to rise in the ranks.Although a woman may face a chilly climate on campus , many times in order for her to succeed , she must rise above the problems around her and concentrate on her work.Until women make up a greater percentage of the senior positions in the University and all academia,inequities will exist."Women need to spend their energies and time doing scholarly activities that are important here at the University." Spirduso said. "If they do that will be successful in this system.If they spend their time in little groups mourning the sexual discrimination that they think exists here, they are wasting valuable study time."1.According to Spirduso,women need to ____.a.produce a report on sexual discriminationb.call for further improvement in their working conditionsc.spend their energies and time fighting against sexual discriminationd.spend more time and energy doing scholarly activities2.From this passage ,we know that _____.a.there are many women full professors in the University of Texasb.women play an important part in adminitrating the Universityc.the weather on the campus is chillyd.women make up a small percentage of the senior positions in the University3.Which of the following statements is true?a.the number of women professors in the University in 1987 was greater than that of 1985b.the number of women professors in the University in 1987 was smaller than that of 1985c.the number of women professors was the same as that of 1985d.more and more women professors thought that sexual discrimination did exit in the University4.One of the positive results from Milburn's study was that _____.a.women were told to con centrate on teir workb.women were given information about available administrative jobsc.women were encouraged to take on all the administrative jobs in the Unversityd.women were encouraged to do more scholarly activities5. The title for this passage should be _______.a.The University of Texasburn's Reportc.Women Professorsd.Sexual Discrimination in Academia答案：ddabd四Today ,as in every other day of the year ,more than 3000 U.S. adlescents will smoke their first cigarette on their way to becoming regular smokers as adults. During their lifetime,it can be expected that of these 3000 about 23 will be murdered,30 will die in traffic accidents, and nearly 750 will be killed by a smoking-related disease. The number of deaths attributed to cigarette smoking outweithts all other factors, whether voluntary or involuntary, as a cause of death.Since the late 1970s, when daily smoking among high school seniors reached 30 precent , smoking rates among youth have declined . While the decline is impressive ,several important issues must be raised.First, in the past several years,smoking rates among youth have declined very little. Second,in the late 1970s ,smoking among male high school seniors exceeded that among female by nearly 10 percent . The statistic is reversing.Third ,several recent studies have indicate high school dropouts have excessively high smoking rates, as much as 75 percent .Finally, thouth significant declines in adolescent smoking have occurred in the past decade,no definite reasons for the decline exist. Within this context,the Naional Cancer Instiute (NCI) began its current effort to determine the most effecive measures to reduce smoking levesl among youth.1.According to the author, the deaths among youth are mainly caused by _____.a.traffic accidentsb.smoking-related deseasec.murderd.all of these2.Every day there are over_____high school strdents who will become regular smoker.a.75b.23c.30d.30003.By "dropout" the author means______.a.students who failed the examinationb.students who left schoolc.students who lost their wayd.students who were driven out of school4.The reason for declining adolescent smoking is that ________.a.NCI has taken effective measuresb.smoking is prevented among high school seniorsc.there are many smokers who have died of cancerd.none of these5.What is implied but not stated by the author is that ________.a.smoking rates among youth have declined very littleb.there are now more female than male smokers among high school seniorsc.high smoking rates are due to the incease in wealthd.smoking at high school are from low socio-economic backgrounds答案：bdbdb五The food we eat seems to have profound effects on our health.Although science has made enormous steps in making food more fit to eat ,it has, at the same time,made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well,especially cancer of the colon. Different cultures are more likely to cause certain different illnesses because of the food that is characteristic in these cultures. That food is related to illness is nto a new discovery. In 1945, about 35 years ago, government researchers realized that nitrates, commonly used to preserve color in meats,and other food additivies,caused cancer. Yet, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to beef and living animals, and because of this ,penicillin has been found in the milk of treated cow. Sometimes similar drugs are given to animals not for medical purposes,but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration(FDA) has tried repeatedly to control these procedures, the practices continue.1.What is the best possible title of the passage?a.Drug and Foodb.Cancer and Healthc.Food and Healthd.Health and Drug2.Which of the following statements is NOT ture?a.Drugs are always given to animals for medical reasonsb.Some of the additives in our food are added to the food itself and some are given to the living animalsc.Researchers have known about the potential dangers of food additives for over thirty-five years.d.Food may cause forty percent of cancer in world.3.How has science done something harmful to mankind?a.Because of science , diseases caused by polluted food haven been virtually eliminated.b.It has caused a lack of information concerning the value of food.c.Because of the application of science,some potentially harmful substances have been added to food.d.The scientists have preserved the color of meats,but not of vegetables.4.What are nitrates used for?a.They preserve flavor in packaged foods.b.They preserve the color of meats.c.They are the objects of research.d.They cause the animals to become fatter.5.The word 'carcinogenic' most nearly means '_____'.a.trouble-makingb.color-retainingc.money-makingd.cancer-causing答案：cacbd六As the pace of life continues to increase ,we are fast losing the art of relaxation. Once you are in the habit of rushing through lift,being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body.Stress is an natural part of everyday lift and there is no way to avoid it. In fact ,it is not the bad thing it is often supposed to be .A certain amount of stress is vital to provide motivation adn give purpose to life. It is only when the stress gets out of control that it can lead to poor performance and ill health.The amount of stress a person can withstand depends very much on the individual. Some people are not afraid of stress,and such characters are obviously prime material for managerial responsibilities. Others lose heart at the first signs of unusual difficulties. When exposed to stress,in whatever form,we react both chemically and physically. In fact we make choice between "fight" or "flight" and in more primitive days the choice made the difference between life or death. The crises we meet today are unlikely to be so extreme,but however little the stress,it involves the same response. It is when such a reaction lasts long,through continued exposure to stress,that health becomes endangered.Such serious conditions as high blood pressure and heart disease have established links with stress.Since we cannot remove stress from our lives(it would be unwise to do so even if we could),we need to find ways to deal with it.1.People are finding less and less time for relaxing themselves because_____.a.they do not know how to enjoy themselvesb.they do not believe that relaxation is important for healthc.they are travelling fast all the timed.they are becoming busier with their work2.According to the writer ,the most important character for a good manager is his ________.a.not fearing stressb.knowing the art of relaxationc.high sense of responsibilityd.having control over performance3.Which of the follwing statements is ture?a.We can find some ways to avoid stressb.Stress is always harmful to peoplec.It is easy to change the hagit of keeping oneself busy with work.d.Different people can withstand different amounts of stress4.In Paragraph 3, "such a reaction" refers back to_______.a."making a choice between 'flight' or 'fight'"b."reaction to stress both chemically and physically"c."responding to crises quickly"d."losing heart at the signs difficulties"5.In the last sentence of the passage,"do so " refers to ______.a."expose ourselves to stress"b."find ways to deal with stress"c."remove stress from our lives"d."established links between diseases and stress"答案：dadbc七In the 1960s, many young Americans were dissatisfied with American society. They wanted to end the Vietnam War and to make all of the people in the U.S. epual. Some of them decided to "drop out" of American society and form their own societies . They formed utopian communities , which they called "communes," where they could follow their philosophy of "do your own thing."A group of artists founded a commune in southern Colorado called "Drop City." Following the ideas of philosopher and architect Buckminster Fuller they built domeshaped houses from pieces of old cars. Other groups, such as author Ken Kesey's Merry Pranksters, the followers fo San Francisco poet Steve Gakin, and a group that called itself the Hog Farm, lived in old school huses and traveled around the United States. The Hog Farm become famous when they helped organize the Woodstock Rock Festival in 1969. Steve Gaskin's followers tried to settle down on a farm in Tennessee, but they had to leave when some members of the gruop were arrested for growing marijuana.Not all communes believed in the philosophy of "do you own thing," however . Twin Oaks , a commune founded in Virgiania in the late 1960s, was based on the ideas of psychologist B.F.Skinner. The people who lived at Twin Oaks were carefully controlled by Skinner's "conditioning" techniques to do things that were good for the community. In 1972, Italian architect Paolo Soleri began to build Arcosanti, a utopian city Arizsona where 2500 people will live closely together in one large building called an "archology" Soleri believes that people must live closely together so that they will all become one.1.Why did some young Americans decide to "drop out" of scoiety during the 1960s?a.They were not satisfied with American society.b.They wanted to grow marijuana.c.They wanted to go to the Vietnam War.d.They did not want all people to be equal.2.Where did the members of the Hog Farm commune live?a.In dome-shaped houseb.In old school husesc.On a farm inTennesseed.In an archology in Arizona3.Who gave the people of Drop City the idea to bulid dome-shaped house?a.Paolo Solerib.B.G.Skinnerc.Steve Gaskind.Buckminster Fuller4.What was the Twin Oaks commune base on ?a.The philosophy of "do your own thing"b.Virginaia in the late 1960sc.The ideas of psychologistd.The belief that people must live closely togerher.5.What is an "archology"?a.A person who studies archaeologyb.A large building where people live closely togetherc.A city in A rizonad.A technique to contorl people答案：abdcb八There are two factors which determine an individual's intelligence. The first is the sort of brain he is born with. Human brains differ considerably, some being more capable than others. But no matter how good a brain he has to begin with, an individual will have a low order of intelligence unless he has opportunities to learn. So the second factor is what happens to the individual—the sort of environment in which he is reared. If an individual is handicapped envionmentally ,it is likely that his brain will fail to develop and he will never attain the level of intelligence of which he is capable.The importance of environment in determining an individual's intellingence can be demonstrated by the case history of the identical twins, Peter and Mark X. Being identical, the twins had identical brains at birth, and their growth processes were the same. When the twins were three months old , their parents died, and they were placed in separate foster homes. Peter was reated by parents of low intelligence in an isolatedcommunity with poor educational pooprtunities.Mark was reared inthe home of well-to-do parents who had been to college. He was read to as a child , sent to good schools, and given every opportunity to be stimulated intellectually.This enviromental difference continued until the twins were in their late teens, when they were giben tesets to measure their intelligence. Mark's I.Q. was 125, twenty-five points higher than the average and fully forty points higher than his identical brother. Given equal opportunities , the twins , having identical brains,would have tested at roughly the same level.1.This selection can best be titled_________.a.Measuring Your Intelligenceb.Intelligence and Environmentc.The Case of Peter and Markd.How the brain Influences Intelligence2.The beststatement of the main idea of this passage is that _____.a.human brains differ considerablyb.the brain a person is born with is improtant in determining his intelligencec.environment is crucial in determining a person's intelligenced. persons having identical brains will have roughly the same intelligence3.According to the passage , the average I.Q.is _____.a.85b.100c.110d.1254.The case history of the twins appears to support the conclusion that _______.a.individual with identical brains seldom test at same levelb.an individual's intelligence is determined only by his enviromentck of opportunity blocks the growth of intelligenced.changes of enviroment produce changes in the structure of the brain5.This passage suggests that an individual 's I.Q.______.a.can be predicted at birthb.stays the same throuthout his lifec.can be increased by educationd.is determined by his childhood答案：bcbcc九As she walked round the huge department store,Edith reflected how difficult it was to choose a suitable Christmas present for her father.She wish that he was as easy to please as her mother, who was always delighted with perfumeBesides,shoppong at this time of the year was a most disgreeable experience :people trod on your toes,poked you with their elbows and almost knocked you overin their haste to get to a bargain ahead of you.Partly to have a rest, Edith paused in front of a counter where some attracive ties were on display. "They are real silk," the assistant assured her, trying to tempt her. "Worth double the price." But edit knew from past experience that her choice of ties hardly ever pleased her father.She moved on reluctantly and then quite by chance, stopped where a small crowd of man had gathered round a counter. She found some good quality pipes on sale-----and the prices were very reasonable. Edith did not hesitate for long : although her father only smoked a pipe occasionally, she knew that this was a present which was bund to please him.When she got home,with her small well-chosen present concealed in her handbag, her parents were already at the supper table. Her mother was in an especially cheerful mood, "Your father has at last to decided to stop smoking." She informed her daughter.1.Edith's father _______.a.did not like presentb.never got presentc.preferred tiesd.was difficult to choose a present for2.The assistant spoke to Edith because she seemed_______.a.attractiveb.interested in tiesc.tiredd.in need of comfort3.Edith stopped at the next counter_________.a.puroselyb.suddenlyc.unwillinglyd.accidentally4.Edith's father smoked a pipe_______.a.when he was obligedb.on social occasionsc.from time to timed.when he was delighted5.Shopping was very disagreeable at that time of the year because_______.a.coustomers trod on each other's toesb.coustomers poked each other with their elbowsc.customers knocked each otherd.customers were doing their shopping in a great hurry答案：dbdcd十If the population of the earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the planet.By the middle of the 21st century,if present trends continue, we will have used up all the oil that drives our cars,for example.Even if scientists develop new ways of feeding the human race,the crowded conditions on earth will make it necessary for lus to look for open space somewhere else. But none of the other planets in our solar system are capable of supporting life at present. One possible solution to the problem, however,has recently been suggested by American scientist, Professor Carl Sagan.Sagan believes that before the earth's resources are compleetely exhausted it will be possible to change the atmophere of Venus and so create a new world almost as large as earth itself. The difficult is that Venus is much hotter than the earth and there is only a tiny amount of water there.Sagan proposes that algae organisms that can live in extremely hot or cold atmospheres and at the same time produce oxygen,should be bred in condition similar to those on Venus.As soon as this has been done, the algae will be placed in small rockets. Spaceship will then fly to Venus and fire the rockets into the atmosphere .In a fairly short time, the alge will break down the carbon dioxide into oxygen and carbon.When the algae have done theri work, the atmosphere will become cooler,but befor man can set foot on Venus it will be neccessary for the oxygen to produce rain. The surface of the planet will still be too hot for man to land on it but the rain will eventually fall and in a few years something like earth will be reproduced on Venus.1.Inte long run, the most insoluble problem caused by population growth on earth will probably be the lack of ______.a.foodb.oilc.spaced.resources2.Carl Sagan believes that Venus might be colonized from earth because _____a.it might be possible to change its atmosphereb.its atmosphere is the same as the earth'sc.there is a good supply of water on Venusd.the days on Venus are long enough3.On Venus there is a lot of ________.a.waterb.carbon dioxidec.carbon monoxided.oxygen4.Algae are plants that can____.a.live in very hot temperaturesb.live in very cold temperaturesc.manufacture oxygend.all of the above5. Man can land on Venus only when_______.a.the algae have done their workb.the atmosphere becomes coolerc.thereis oxygend.it rains there答案：cabdd阅读理解限时训练与解析A（5minutes）I found out one time that doing a favor for someone could get you into a lot of trouble. I was in the eighth grade at the time, and we were having a final test. During the test, the girl sitting next to me whispered something, but I didn’t understand. So I leaned over her way and found out that she was trying to ask me if I had an extra pen. She showed me that hers was out of ink and would not write. I happened to have an extra one, so I took it out of my pocket and put it on her desk.Later, after the test papers had been turned in, the teacher asked me to stay in the room when all the other students were dismissed（解散）. As soon as we were alone she began to talk to me about what it meant to grow up; she talked about how important it was to stand on your own two feet and be responsible (负责任) for your own acts. For a long time, she talked about honesty and emphasized（强调）the fact that when people do something dishonest, they are really cheating（欺骗）themselves. She made me promise that I would think seriously（认真地）about all the things she had said, and then she told me I could leave. I walked out of the room wondering why she had chosen to talk to me about all those things.Later on, I found out that she thought I had cheated on the test. When she saw me lean over to talk to the girl next to me, it looked as if I was copying answers from the girl’s test paper. I tried to explain about the pen, but all she could say was it seemed very very strange to her that I hadn’t talked of anything about the pen the day she talked to me right after the test. Even if I tried to explain that I was just doing the girl a favor by letting her use my pen, I am sure she continued（继续）to believe that I had cheated on the test.1. The story took place（发生）exactly ____ .A. in the teacher’s officeB. in an exam roomC. in the schoolD. in the language lab2. The girl wanted to borrow a pen, because ____ .A. she had not brought a pen with herB. she had lost her own on her way to schoolC. there was something wrong with her ownD. her own had been taken away by someone3. The teacher saw all this, so she asked the boy ____ .A. to go on writing his paperB. to stop whisperingC. to leave the room immediatelyD. to stay behind after the exam4. The thing(s) emphasized in her talk was(were) ____ .A. honestyB. sense of dutyC. seriousnessD. all of the above5. The boy knew everything ____ .A. the moment he was asked to stay behindB. when the teacher started talking about honestyC. only some time laterD. when he was walking out of the roomB（7minutes）Some kids start to drink alcohol (酒精) at a young age. They think it is part of becoming an adult. They also think drinking is not that bad because so many people do it. They feel it is not as bad as taking drugs (毒品). It is easy for kids to get liquor （酒精饮料）by using fake identification (伪造证件).Parents may start to notice a change in their child’s behavior if the child starts drinking. Kids who drink sometimes stop doing things they normally liked to do. They may keep telephone calls and meetings a secret and not want anybody to touch their things. They act moody (喜怒无常) and do not have the same eating and sleeping habits.Parents need to stay involved (牵涉) in their kids’lives. They should talk to their children about their problems to be aware of any changes.Parents can be the best protection. Children who get a lot of love can feel good about themselves. It helps them resist（抵抗）doing bad things even when other kids are doing them. Parents can also help set a good example by not drinking and driving. They can have firm rules in the home that everyone follows.Give the children good ideas on how to say “no”to drinking, even when they are at a party. Try not to overreact or panic (惊慌) if the child tries alcohol. How you handle it can affect their attitude. It may be helpful to talk to other parents about setting up curfews (宵禁令) and rules about parties or other events.1. Which of the following is NOT the reason why some kids have an early start of drinking?A. They want to show their maturity (成熟) by drinking alcohol.B. Drinking alcohol is much cooler than taking drugs.C. They are affected by many other people around them.D. They can get liquor easily.2.According to the passage, what changes may happen to the kids who start drinking?A. Nothing serious will happen to them.B. They keep the same eating and sleeping habits.C. They can control their moods quite well.。

大学英语四级阅读理解试题12篇(含答案)

大学英语四级阅读理解试题12篇（含答案）Long-range goals may be related to our dreams of the future. They might cover five years or more. Life is not a static thing. We should never allow a long-term goal to limit us or our course of action.1.Our long-term goals mean a lot.B.if we cannot reach solid short-term goalsC.if we write down the datesD.if we put forward some plans2. New short-term goals are bulid upon.A.two yearsB.long-term goalsA.we will win final successB.we are overwhelmedC.we should build up confidence of successD.we should strong desire for setting new goals4. Once our goals are drawn up,.B. we may change our goals as we have new ideas and opportunitiesC.we had better wait for the exciting news of successD. we have made great decision5. It is implied but not stated in the passage thatA.those who habe long-term goals will succeedB.writing down the dates may discourage youC.the goal is only a guide for us to reach our desinationD.every should have a goal答案：adcbc。

40篇阅读理解(含答案)

大学英语四级阅读理解试题40篇之一（含答案）There are three kinds of goals: short-term, medium-range and long-term goals. Short-range goals are those that usually deal with current activities, which we can apply on a daily basis. Such goals can be achieved in a week or less or two weeks, or possible months. It should be remembered that just as a building is no stronger than its foundation, our long-term goals cannot amount to very much without the achievement of solid short-term goals. Upon completing our short-term goals, we should date the occasion and then add new short-term goals that will build on those that have been completed.The intermediate goals build on the foundation of the short-range goals. They might deal with just one term of school or the entire school year, or they could even extend for several years. Any time you move a step at a time, you should never allow yourself to become discouraged or overwhelmed. As you complete each step, you will enforce the belief in your ability to grow and succeed. And as your list of completion dates grow, your motivation and desire will increase.Long-range goals may be related to our dreams of the future. They might cover five years or more. Life is not a static thing. We should never allow a long-term goal to limit us or our course of action.1.Our long-term goals mean a lot______.A.if we complete our short-range goalsB.if we cannot reach solid short-term goalsC.if we write down the datesD.if we put forward some plans2.New short-term goals are built upon______.A.two yearsB.long-term goalsC.current activitiesD.the goals that have been completed3.When we complete each step of our goals ,______.A.we will win final successB.we are overwhelmedC.we should build up confidence of successD.we should strong desire for setting new goals4.Once our goals are drawn up,_______.A.we should stick to them until we complete themB.we may change our goals as we have new ideas and opportunitiesC.we had better wait for the exciting news of successD.we have made great decision5.It is implied but not stated in the passage that ______.A.those who have long-term goals will succeedB.writing down the dates may discourage youC.the goal is only a guide for us to reach our destinationD.every should have a goal答案：adcbc大学英语四级阅读理解试题40篇之二（含答案）The economy of the United States after 1952 was the economy of a well-fed, almost fully employed people. Despite occasional alarms, the country escaped any postwar depression and lived in a state of boom. A n economic survey of the year 1955, a typical year of the 1950’s, may be typical as illustrating the rapid economic growth of the decade. The national outp ut was value at 10 percent above that of 1954 (1955 output was estimated at 392 billion dollars). The production of manufacturers was about 40 percent more than it had averaged in the years immediately following World War 2. The country’s business spent about 30 billion dollars for new factories and machinery. National income available for spending was almost a third greater than it had been it had been in 1950. Consumers spent about 256 billion dollars; that is about 700million dollars a day or about twenty-five million dollars every hour, all round the clock. Sixty-five million people held jobs and only a little more than two million wanted jobs but could not find them. Only agriculture complained that it was not sharing in the room. To some observers this was an ominous echo of the mid-1920. As farmer’s share of their products declined, marketing costs rose. But there were, among the observers of the national economy, a few who were not as confident as the majority. Those few seemed to fear that the boom could not last and would eventually lead to the opposite-depression.1. What is the best title of the passage?a. The Agricultural Trends of 1950’sb. The Unemployment Rate of 1950’sc. U.S. Economy in the 50’sd. The Federal Budget of 19522. In Line 3, the word “boom” could best be replaced by______.a. nearby explosionb. thunderous noisec. general public supportd. rapid economic growth3. It can be inferred the national from the passage that most people in the United States in 1955 viewed the national economy with an air of _________.a. confidenceb. confusionc. disappointmentd. suspicion4. Which of the following were LEAST satisfied with the national economy in the 1950’s?a. Economistsb. Farmersc. Politiciansd. Steelworkers5. The passage states that income available for spending in the U.S. was greater in 1955 than in 1950. How much was it?a. 60％b. 50％c. 33％d. 90％答案：cdabc大学英语四级阅读理解试题40篇之三（含答案）Women are also underrepresented in the administration and this is because there are so few women full professors. In 1985, Regent Berry Milburn produced a report blasting the University of Texas System administration for not encouraging women. The University was rated among the lowest for the system. In a 1987 update, Milburn commended the progress that was made and called for even more improvement.One of the positive results from her study was a System-wide program to inform women of available administrative jobs. College of Communication Associate Dean Patrica Witherspoon said it is important that woman be flexible when it comes to relocating if they want to rise in the ranks.Although a woman may face a chilly climate on campus, many times in order for her to succeed, she must rise above the problems around her and concentrate on her work.Until women make up a greater percentage of the senior positions in the University and all academia, inequities will exist. "Women need to spend their energies and time doing scholarly activities that are important here at the University." Spirduso said. "If they do that will be successful in this system. If they spend their time in little groups mourning the sexual discrimination that they think exists here, they are wasting valuable study time."1.According to Spirduso, women need to ____.a.produce a report on sexual discriminationb.call for further improvement in their working conditionsc.spend their energies and time fighting against sexual discriminationd.spend more time and energy doing scholarly activities2.From this passage ,we know that _____.a.there are many women full professors in the University of Texasb.women play an important part in administrating the Universityc.the weather on the campus is chillyd.women make up a small percentage of the senior positions in the University3.Which of the following statements is true?a.the number of women professors in the University in 1987 was greater than that of 1985b.the number of women professors in the University in 1987 was smaller than that of 1985c.the number of women professors was the same as that of 1985d.more and more women professors thought that sexual discrimination did exit in the University4.One of the positive results from Milburn's study was that _____.a.women were told to concentrate on their workb.women were given information about available administrative jobsc.women were encouraged to take on all the administrative jobs in the Unversityd.women were encouraged to do more scholarly activities5. The title for this passage should be _______.a.The University of Texasburn's Reportc.Women Professorsd.Sexual Discrimination in Academia答案：ddabd大学英语四级阅读理解试题40篇之四（含答案）Today, as in every other day of the year, more than 3000 U.S. adolescents will smoke their first cigarette on their way to becoming regular smokers as adults. During their lifetime, it can be expected that of these 3000 about 23 will be murdered,30 will die in traffic accidents, and nearly 750 will be killed by a smoking-related disease. The number of deaths attributed to cigarette smoking outweighs all other factors, whether voluntary or involuntary, as a cause of death.Since the late 1970s, when daily smoking among high school seniors reached 30 percent, smoking rates among youth have declined. While the decline is impressive, several important issues must be raised.First, in the past several years, smoking rates among youth have declined very little. Second, in the late 1970s, smoking among male high school seniors exceeded that among female by nearly 10 percent. The statistic is reversing. Third ,several recent studies have indicate high school dropouts have excessively high smoking rates, as much as 75 percent .Finally, though significant declines in adolescent smoking have occurred in the past decade, no definite reasons for the decline exist. Within this context, the National Cancer Institute (NCI) began its current effort to determine the most effective measures to reduce smoking levels among youth.1.According to the author, the deaths among youth are mainly caused by _____.a.traffic accidentsb.smoking-related deseasec.murderd.all of these2.Every day there are over_____high school strdents who will become regular smoker.a.75b.23c.30d.30003.By "dropout" the author means______.a.students who failed the examinationb.students who left schoolc.students who lost their wayd.students who were driven out of school4.The reason for declining adolescent smoking is that ________.a.NCI has taken effective measuresb.smoking is prevented among high school seniorsc.there are many smokers who have died of cancerd.none of these5.What is implied but not stated by the author is that ________.a.smoking rates among youth have declined very littleb.there are now more female than male smokers among high school seniorsc.high smoking rates are due to the increase in wealthd.smoking at high school are from low socio-economic backgrounds答案：bdbdb大学英语四级阅读理解试题40篇之五（含答案）The food we eat seems to have profound effects on our health. Although science has made enormous steps in making food more fit to eat, it has, at the same time, made many foods unfit to eat. Some research has shown that perhaps eighty percent of all human illnesses are related to diet and forty percent of cancer is related to the diet as well, especially cancer of the colon. Different cultures are more likely to cause certain different illnesses because of the food that is characteristic in these cultures. In 1945, about 35 years ago, government researchers realized that nitrates, commonly used to preserve color in meats, and other food additives, caused cancer. Y et, these carcinogenic additives remain in our food, and it becomes more difficult all the time to know which things on the packaging labels of processed food are helpful or harmful. The additives which we eat are not all so direct. Farmers often give penicillin to beef and living animals, and because of this, penicillin has been found in the milk of treated cow. Sometimes similar drugs are given to animals not for medical purposes,but for financial reasons. The farmers are simply trying to fatten the animals in order to obtain a higher price on the market. Although the Food and Drug Administration (FDA) has tried repeatedly to control these procedures, the practices continue.1.What is the best possible title of the passage?a.Drug and Foodb.Cancer and Healthc.Food and Healthd.Health and Drug2.Which of the following statements is NOT true?a.Drugs are always given to animals for medical reasonsb.Some of the additives in our food are added to the food itself and some are given to the living animalsc.Researchers have known about the potential dangers of food additives for over thirty-five years.d.Food may cause forty percent of cancer in world.3.How has science done something harmful to mankind?a.Because of science , diseases caused by polluted food haven been virtually eliminated.b.It has caused a lack of information concerning the value of food.c.Because of the application of science, some potentially harmful substances have been added to food.d.The scientists have preserved the color of meats, but not of vegetables.4.What are nitrates used for?a.They preserve flavor in packaged foods.b.They preserve the color of meats.c.They are the objects of research.d.They cause the animals to become fatter.5.The word 'carcinogenic' most nearly means '_____'.a.trouble-makingb.color-retainingc.money-makingd.cancer-causing答案：cacbd大学英语四级阅读理解试题40篇之六（含答案）As the pace of life continues to increase, we are fast losing the art of relaxation. Once you are in the habit of rushing through lift, being on the go from morning till night, it is hard to slow down. But relaxation is essential for a healthy mind and body. Stress is a natural part of everyday lift and there is no way to avoid it. In fact, it is not the bad thing it is often supposed to be .A certain amount of stress is vital to provide motivation and give purpose to life. It is only when the stress gets out of control that it can lead to poor performance and ill health.The amount of stress a person can withstand depends very much on the individual. Some people are not afraid of stress, and such characters are obviously prime material for managerial responsibilities. Others lose heart at the first signs of unusual difficulties. When exposed to stress, in whatever form, we react both chemically and physically. In fact we make choice between "fight" or "flight" and in more primitive days the choice made the difference between life or death. The crises we meet today are unlikely to be so extreme, but however little the stress, it involves the same response. It is when such a reaction lasts long, through continued exposure to stress, that health becomes endangered. Such serious conditions as high blood pressure and heart disease have established links with stress. Since we cannot remove stress from our lives(it would be unwise to do so even if we could),we need to find ways to deal with it.1.People are finding less and less time for relaxing themselves because_____.a.they do not know how to enjoy themselvesb.they do not believe that relaxation is important for healthc.they are travelling fast all the timed.they are becoming busier with their work2.According to the writer ,the most important character for a good manager is his ________.a.not fearing stressb.knowing the art of relaxationc.high sense of responsibilityd.having control over performance3.Which of the following statements is true?a.We can find some ways to avoid stressb.Stress is always harmful to peoplec.It is easy to change the habit of keeping oneself busy with work.d.Different people can withstand different amounts of stress4.In Paragraph 3, "such a reaction" refers back to_______.a."making a choice between 'flight' or 'fight'"b."reaction to stress both chemically and physically"c."responding to crises quickly"d."losing heart at the signs difficulties"5.In the last sentence of the passage,” do so " refers to ______.a."expose ourselves to stress"b."find ways to deal with stress"c."remove stress from our lives"d."established links between diseases and stress"答案：dadbc大学英语四级阅读理解试题40篇之七（含答案）In the 1960s, many young Americans were dissatisfied with American society. They wanted to end the V ietnam War and to make all of the people in the U.S. equal. Some of them decided to "drop out" of American society and form their own societies. They formed utopian communities, which they called "communes," where they could follow their philosophy of "do your own thing." A group of artists founded a commune in southern Colorado called "Drop City." Following the ideas of philosopher and architect Buckminster Fuller they built dome-shaped houses from pieces of old cars. Other groups, such as author Ken Kesey's Merry Pranksters, the followers of San Francisco poet Steve Gakin, and a group that called itself the Hog Farm, lived in old school houses and traveled around the United States. The Hog Farm becomes famous when they helped organize the Woodstock Rock Festival in 1969. Steve Gaskin's followers tried to settle down on a farm in Tennessee, but they had to leave when some members of the group were arrested for growing marijuana.Not all communes believed in the philosophy of "do you own thing," however. Twin Oaks, a commune founded in Virginia in the late 1960s, was based on the ideas of psychologist B.F.Skinner. The people who lived at Twin Oaks were carefully controlled by Skinner's "conditioning" techniques to do things that were good for the community. In 1972, Italian architect Paolo Soleri began to build Arcosanti, a utopian city Arizona where 2500 people will live closely together in one large building called an "archeology" Soleri believes that people must live closely together so that they will all become one.1.Why did some young Americans decide to "drop out" of society during the 1960s?a.They were not satisfied with American society.b.They wanted to grow marijuana.c.They wanted to go to the V ietnam War.d.They did not want all people to be equal.2.Where did the members of the Hog Farm commune live?a.In dome-shaped houseb.In old school housesc.On a farm in Tennesseed.In an archeology in Arizona3.Who gave the people of Drop City the idea to build dome-shaped house?a.Paolo Solerib.B.G.Skinnerc.Steve Gaskind.Buckminster Fuller4.What was the Twin Oaks commune base on ?a. The philosophy of "do your own thing"b. V irginia in the late 1960sc. The ideas of psychologistd. The belief that people must live closely together.5.What is an "archeology"?a.A person who studies archaeologyb.A large building where people live closely togetherc.A city in Arizonad.A technique to control people答案：abdcb大学英语四级阅读理解试题40篇之八（含答案）There are two factors which determine an individual's intelligence. The first is the sort of brain he is born with. Human brains differ considerably, some being more capable than others. But no matter how good a brain he has to begin with, an individual will have a low order of intelligence unless he has opportunities to learn. So the second factor is what happens to the individual—the sort of environment in which he is reared. If an individual is handicapped environmentally, it is likely that his brain will fail to develop and he will never attain the level of intelligence of which he is capable.The importance of environment in determining an individual's intelligence can be demonstrated by the case history of the identical twins, Peter and Mark X. Being identical, the twins had identical brains at birth, and their growth processes were the same. When the twins were three months old , their parents died, and they were placed in separate foster homes. Peter was rated by parents of low intelligence in an isolated community with poor educational opportunities. Mark was reared in the home of well-to-do parents who had been to college. He was read to as a child, sent to good schools, and given every opportunity to be stimulated intellectually. This environmental difference continued until the twins were in their late teens, when they were given tests to measure their intelligence. Mark's I.Q. was 125, twenty-five points higher than the average and fully forty points higher than his identical brother. Given equal opportunities, the twins, having identical brains, would have tested at roughly the same level.1.This selection can best be titled_________.a.Measuring Y our Intelligenceb.Intelligence and Environmentc.The Case of Peter and Markd.How the brain Influences Intelligence2.The best statement of the main idea of this passage is that _____.a. human brains differ considerablyb. the brain a person is born with is important in determining his intelligencec. environment is crucial in determining a person's intelligenced. persons having identical brains will have roughly the same intelligence3.According to the passage , the average I.Q. is _____.a.85b.100c.110d.1254.The case history of the twins appears to support the conclusion that _______.a.individual with identical brains seldom test at same levelb.an individual's intelligence is determined only by his environmentck of opportunity blocks the growth of intelligenced.changes of environment produce changes in the structure of the brain5.This passage suggests that an individual 's I.Q.______.a.can be predicted at birthb.stays the same throughout his lifec.can be increased by educationd.is determined by his childhood答案：bcbcc大学英语四级阅读理解试题40篇之九（含答案）As she walked round the huge department store, Edith reflected how difficult it was to choose a suitable Christmas present for her father. She wish that he was as easy to please as her mother, who was always delighted with perfumeBesides, shopping at this time of the year was a most disagreeable experience: people trod on your toes, poked you with their elbows and almost knocked you over in their haste to get to a bargain ahead of you.Partly to have a rest, Edith paused in front of a counter where some attractive ties were on display. "They are real silk," the assistant assured her, trying to tempt her. "Worth doubles the price." But edit knew from past experience that her choice of ties hardly ever pleased her father.She moved on reluctantly and then quite by chance, stopped where a small crowd of man had gathered round a counter. She found some good quality pipes on sale-----and the prices were very reasonable. Edith did not hesitate for long: although her father only smoked a pipe occasionally, she knew that this was a present which was bund to please him.When she got home, with her small well-chosen present concealed in her handbag, her parents were already at the supper table. Her mother was in an especially cheerful mood, "Y our father has at last decided to stop smoking." She informed her daughter.1.Edith's father _______.a.did not like presentb.never got presentc.preferred tiesd.was difficult to choose a present for2.The assistant spoke to Edith because she seemed_______.a.attractiveb.interested in tiesc.tiredd.in need of comfort3.Edith stopped at the next counter_________.a.puroselyb.suddenlyc.unwillinglyd.accidentally4.Edith's father smoked a pipe_______.a.when he was obligedb.on social occasionsc.from time to timed.when he was delighted5.Shopping was very disagreeable at that time of the year because_______.a.coustomers trod on each other's toesb.coustomers poked each other with their elbowsc.customers knocked each otherd.customers were doing their shopping in a great hurry答案：dbdcd大学英语四级阅读理解试题40篇之十（含答案）If the population of the earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the planet. By the middle of the 21st century, if present trends continue, we will have used up all the oil that drives our cars, for example. Even if scientists develop new ways of feeding the human race, the crowded conditions on earth will make it necessary for us to look for open space somewhere else. But none of the other planets in our solar system are capable of supporting life at present. One possible solution to the problem, however, has recently been suggested by American scientist, Professor Carl Sagan.Sagan believes that before the earth's resources are completely exhausted it will be possible to change the atmosphere of V enus and so create a new world almost as large as earth itself. The difficult is that V enus is much hotter than the earth and there is only a tiny amount of water there.Sagan proposes that algae organisms that can live in extremely hot or cold atmospheres and at the same time produce oxygen should be bred in condition similar to those on V enus. As soon as this has been done, the algae will be placed in small rockets. Spaceships will then fly to V enus and fire the rockets into the atmosphere. In a fairly short time, the algae will break down the carbon dioxide into oxygen and carbon.When the algae have done their work, the atmosphere will become cooler, but before man can set foot on V enus it will be necessary for the oxygen to produce rain. The surface of the planet will still be too hot for man to land on it but the rain will eventually fall and in a few years something like earth will be reproduced on V enus.1.In the long run, the most insoluble problem caused by population growth on earth will probably be the lack of ______.a.foodb.oilc.spaced.resources2.Carl Sagan believes that V enus might be colonized from earth because _____a.it might be possible to change its atmosphereb.its atmosphere is the same as the earth'sc.there is a good supply of water on V enusd.the days on V enus are long enough3.On V enus there is a lot of ________.a.waterb.carbon dioxidec.carbon monoxided.oxygen4.Algae are plants that can____.a.live in very hot temperaturesb.live in very cold temperaturesc.manufacture oxygend.all of the above5. Man can land on V enus only when_______.a.the algae have done their workb.the atmosphere becomes coolerc.there is oxygend.it rains there答案：cabdd大学英语四级阅读理解试题40篇之十一（含答案）What is your favorite color? Do you like yellow, orange, and red? If you do, you must be an optimist, a leader, an active person who enjoys life, people and excitement. Do you prefer greys and blues? Then you are probably quiet, shy, and you would rather follow than lead. Y ou tend to be a pessimist. At least, this is what psychologists tell us, and they should know, because they have been seriously studying the meaning of colors preference, as well as the effect that colors have on human beings. They tells us, among other facts, that we do not choose our favorite color as we grow up----we are born with our preference. If you happen to love brown, you did so, as soon as you opened your eyes, or at least as soon as you could see clearly.Colors do influence our moods----there is no doubt about it .A yellow room makes most people feel more cheerful and more relaxed than a dark green one; and a red dress brings warmth and cheer to the saddest winter day. On the other hand, black is depressing. A black bridge over the Thames River, near London, used to be the scene of more suicides than any other bridge in the area ----until it was repainted green. The number of suicide attempts immediately fell sharply; perhaps it would have fallen even more if the bridge had been done in pink or baby blue.Light and bright colors make people not only happier but more active. It is an established fact that factory workers work better, harder, and have fewer accidents when their machines are painted orange rather than black or grey.1."Y ou would rather follow than red" means_______.a.you don't like to follow othersb.you would be a member rather than a leaderc.you would be afraid of following othersd.you would like to be a leader rather than a follower2.If one enjoys life, one is sure to prefer________.a.red to yellowb.blue to orangec.red to greyd.blue to yellow3."They tell us, among other facts, that we don't choose our favorite colors as we grow up." "Among other facts"。

(完整版)英语四级阅读理解练习题及解析.docx

.英语四级阅读理解练习题及解析(1)【阅读练习】What is it about Americans and food? We love toeat ,but we feel 1 about it afterward. We say we want only the best, but we strangely enjoy junkfood.We’re 2 with health and weight loss but face an unprecedented epidemic of obesity(肥胖 ). Perhaps the 3 to this ambivalence(矛盾情结) lies in our history. The first Europeans cametothis continent searching for new spices but went in vain. The first cash crop(经济作物)wasn’t eaten but smoked. Then there was Prohibition, intended to prohibit drinking butactually encouraging more 4 ways of doing it.The immigrant experience, too, has been one of inharmony. Do as Romans do meanseating what“real Amer icans ” eat, but our nation ’s food has come to be5 by imports—pizza,say, or hot dogs. And some of the country ’s most treasured cooking comes from peo ple whoarrived here in shackles.Perhaps it should come as no surprise then that food has been a medium for the nation ’sdefining strug gles, whether at the Boston Tea Party or the sit?ins at southern lunch counters.It is integral to ourconcepts of health and even morality whether onere frains from alcohol forreligious reasons or evadesmeat for political 6But strong opinions have not brought 7 . Americansare ambivalent about what they putin their mouths.We have become 8 of our foods, especially as welea rn more about what theycontain.The 9 in food is still prosperous in the American c onsciousness. It ’s no coincidence, then,that the f irst Thanksgiving holds the American imagination in such bondage( 束缚 ). It ’s whatwe eat—and how we 10 it with friends, family, and strangers—that help define Americaas acommunity today.A. answer I. creativeB. result J. beliefC. share K. suspiciousD. guilty L. certaintyE. constant M. obsessedF. defined N. identifyG. vanish O. idealsH. adapted【答案及解】1.D feel 是一个系，可以判断此填入一个形容，通上下文意思，以及后面介about, 可以确定D guilty,短feel guilty about sth.“ ⋯⋯感到有愧”。

英语四级阅读题库含答案解析

英语四级阅读题库含答案解析1.Passage OneGlobal warming may or may not be the great environmental crisis of the 21st century, but regardless of whether it is or isn’t –we won’t do much about it. We will argue over it and may even, as a nation, make some fairly solemn-sounding commitments to avoid it. But the more dramatic and meaningful these commitments seem, the less likely they are to be observed.Al Gore calls global warming an “inconvenient truth,”as if merely recognizing it could put us on a path to a solution. But the real truth is that we don’t know enough to relieve global warming, and –without major technological breakthroughs—we can’t do much about it.From 2003 to 2050, the world’s population is projected to grow from 6.4 billion to 9.1 billion, a 42% increase. If energy use per person and technology remain the same, total energy use and greenhouse gas emissions (mainly, CO2) will be 42% higher in 2050. but that’s too low, because societies that grow richer use more energy. We need economic growth unless we condemn the world’s poor to their present poverty and freeze everyone else‘s living standards. With modest growth, energy use and greenhouse emissions more than double by 2050.No government will adopt rigid restrictions on economic growth and personal freedom (limits on electricity usage, driving and travel) that might cut back global warming. Still, politicians want to show they’re “doing something.”Consider the Kyoto Protocol (京都议定书). It allowed countries that joined to punish those that didn’t. But it hasn’t reduced CO2 emissions (up about 25% since 1990), and many signatories (签字国) didn’t adopt tough enough policies to hit their 2008-2012 targets.The practical conclusion is that if global warming is a potential disaster, the only solution is new technology. Only an aggressive research and development program might find ways of breaking dependence on fossil fuels or dealing with it.The trouble with the global warming debate is that it has become a moral problem when it’s really an engineering one. The inconvenient truth is that if we don’t solve the engineering problem, we’re helpless.57. What is said about global warming in the first paragraph?A) It may not prove an environmental crisis at all.B) It is an issue requiring world wide commitments.C) Serious steps have been taken to avoid or stop it.D) Very little will be done to bring it under control.58. According to the author’s understanding, what is Al Gore’s view on global warming?A) It is a reality both people and politicians are unaware of.B) It is a phenomenon that causes us many inconveniences.C) It is a problem that can be solved once it is recognized.D) It is an area we actually have little knowledge about.59. Green house emissions will more than double by 2050 because of _______.A) economic growthB) the widening gap between the rich and poor C) wasteful use of energyD) the rapid advances of science and technology60. The author believes that, since the signing of the Kyoto Protocol, ________.A) politicians have started to do something to better the situationB) few nations have adopted real tough measures to limit energy useC) reductions in energy consumption have greatly cut back global warmingD) international cooperation has contributed to solving environmental problems61. What is the message the author intends to convey?A) Global warming is more of a moral issue than a practical one.B) The ultimate solution to global warming lies in new technologyC) The debate over global warming will lead to technological breakthroughs.D) People have to give up certain material comforts to stop global warming. Passage TwoSomeday a stranger will read your e-mail without your permission or scan the Websites you’ve visited. Or perhaps someone will casually glance through your credit card purchase or cell phone bills to find out your shopping preferences or calling habits.In fact, it’s likely some of these things have already happened to you. Who would watch you without your permission? It might be a spouse, a girlfriend, a marketing company, a boss, a cop or a criminal. Whoever it is, they will see you in a way you never intended to be seen —the 21st century equivalent of being caught naked.Psychologists tell us boundaries are healthy, that it’s important to reveal yourself to friends, family and lovers in stages, at appropriate times. But few boundaries remain. The digital bread crumbs(碎屑) you leave everywhere make it easy for strangers toreconstruct who you are, where you are and what you like. In some cases, a simple Google search can reveal what you think. Like it or not, increasingly we live in a world where you simple cannot keep a secret.The key question is: Does that matter?When opinion polls ask Americans about privacy, most say they are concerned about losing it. A survey found an overwhelming pessimism about privacy, with 60 percent of respondents saying they feel their privacy is “slipping away, and that bothers me.”But people say one thing and do another. Only a tiny fraction of Americans change any behaviors in an effort to preserve their privacy. Few people turn down a discount at tollbooths(收费站) to avoid using the EZ-Pass system that can track automobile movements. And few turn down supermarket loyalty cards. Privacy economist Alessandro Acquisti has run a series of tests that reveal people will surrender personal information like Social Security numbers just to get their hands on a pitiful 50-cents-off coupon (优惠券).But privacy does matter –at least sometimes. It’s like health: When you have it, you don’t notice it. Only when it’s gone do you wish you’d done more to protect it. 62. What does the author mean by saying “the 21st century equivalent of being caught naked ”(Lines 3-4, Para.2)?A) People’s personal information is easily accessed without their knowledge.B) In the 21st century people try every means to look into others’secrets.C) People tend to be more frank with each other in the information age.D) Criminals are easily caught on the spot with advanced technology.63. What would psychologists advise on the relationships between friends?A) Friends should open their hearts to each other.B) Friends should always be faithful to each other. C) There should be a distance even between friends.D) There should be fewer disputes between friends.64. Why does the author say “we live in a world where you simple cannot keep a secret”(Line 5, Para.3)?A) Modern society has finally evolved into an open society.B) People leave traces around when using modern technology.C) There are always people who are curious about others’affairs.D) Many search engines profit by revealing people’s identities.65. What do most Americans do with regard to privacy protection?A) They change behaviors that might disclose their identity.B) They use various loyalty cards for business transactions.C) They rely more and more on electronic devices. D) They talk a lot but hardly do anything about it.66. According to the passage, privacy is like health in that ________.A) people will make every effort to keep itB) its importance is rarely understoodC) it is something that can easily be lostD) people don’t cherish it until they lose it2.Passage OneQuestions 57 to 61 are based on the following passage.If you are a male and you are reading this ,congratulations: you are a survivor .According to statistics .you are more than twice as likely to die of skin cancer than a woman ,and nine times more likely to die of AIDS. Assuming you make it to the end of your natural term, about 78 years for men in Australia, you will die on average five years before a woman.There are many reasons for this-typically, men take more risks than woman and are more likely to drink and smoke but perhaps more importantly, men don’t go to the doctor.“Men aren’t seeing doctors as often as they should, ”says Dr. Gullotta, “This is particularly so for the over-40s,when diseases tend to strike.”Gullotta says a healthy man should visit the doctor every year or two. For those over 45,it should be at least once a year.Two months ago Gullotta saw a 50-year-old ma who had delayed doing anything about his smoker’s cough for ayear.“When I finally saw him it had already spread and he has since died from lung cancer”he says, “Earlier detection and treatment may not have cured him, but it would have prolonged this life”According to a recent survey, 95%of women aged between 15 and early 40s see a doctor once a year, compared to 70% of men in the same age group.“A lot of men think they are invincible （不可战胜的）”Gullotta says “They only come in when a friend drops dead on the golf course and they think”Geez, if it could happen to him.Then there is the ostrich approach,”some men are scared of what might be there and would rather not know, ”says Dr. Ross Cartmill.“Most men get their cars serviced more regularly than they service their bodies,”Cartmill says .He believes most diseases that commonly affect men could be addressed by preventive check-ups.Regular check-ups for men would inevitably place strain on the public purse, Cartmill says.”But prevention is cheaper in the long run than having to treat the diseases. Besides, the ultimate cost is far greater: it is called premature death.”57.Why does the author congratulate his male readers at the beginning of the passage?A. They are more likely to survive serious diseases today.B. Their average life span has been considerably extended.C. They have lived long enough to read this article.D. They are sure to enjoy a longer and happier live.58.What does the author state is the most important reason men die five years earlier on average than women?A. men drink and smoke much more than womenB. men don’t seek medical care as often as womenC. men aren’t as cautions as women in face of dangerD. men are more likely to suffer from fatal diseases59. Which of the following best completes the sentence “Geez, if it could happen to him…’(line2,para,8)?A. it could happen to me, tooB. I should avoid playing golfC. I should consider myself luckyD. it would be a big misfortune60what does Dr. Ross Cartmill mean by “the ostrich approach”(line q para.9) A. a casual attitude towards one’s health conditionsB. a new therapy for certain psychological problemsC. refusal to get medical treatment for fear of the pain involvedD. unwillingness to find out about one’s disease because of fear61. What does Cartmill say about regular check-ups for men?A.They may increase public expensesB.They will save money in the long runC.They may cause psychological strains on menD.They will enable men to live as long as womenPassage TwoQuestions 62 to 66 are based on the following passage.High-quality customer service is preached(宣扬) by many ,but actually keeping customers happy is easier said than doneShoppers seldom complain to the manager or owner of a retail store, but instead will alert their friends, relatives, co-workers, strangers-and anyone whowill listen.Store managers are often the last to hear complaints, and often find out only when their regular customers decide t frequent their competitors, according to a study jointly conducted by Verde group and Wharton school“Storytelling hurts retailers and entertains consumers,”said Paula Courtney, President of the Verde group.”the store loses the customer, but the shopper must also find a replacement.”On average, every unhappy customer will complain to at least four other, and will no longer visit the specific store for every dissatisfied customer, a store will lose up to three more due to negative reviews. The resulting “snowball effect”can be disastrous to retailers.According to the research, shoppers who purchased clothing encountered the most problems. ranked second and third were grocery and electronics customers.The most common complaints include filled parking lots, cluttered (塞满了的) shelves, overloaded racks, out-of-stock items, long check-out lines, and rude salespeople.During peak shopping hours, some retailers solved the parking problems by getting moonlighting（业余兼职的）local police to work as parking attendants. Some hired flag wavers to direct customers to empty parking spaces. This guidance eliminated the need for customers to circle the parking lot endlessly, and avoided confrontation between those eyeing the same parking space.Retailers can relieve the headaches by redesigning store layouts, pre-stocking sales items, hiring speedy and experienced cashiers, and having sales representatives on hand to answerquestions.Most importantly, salespeople should be diplomatic and polite with angry customers.“Retailers who’re responsive and friendly are more likely to smooth over issues than those who aren’t so friendly.”said Professor Stephen Hoch. “Maybe something as simple as a greeter at the store entrance would help.”Customers can also improve future shopping experiences by filing complaints to the retailer, instead of complaining to the rest of the world. Retailers are hard-pressed to improve when they have no idea what is wrong.注意：此部分试题请在答题卡2上作答62. Why are store managers often the last to hear complaints?A Most customers won’t bother to complain even if they have had unhappy experiences.B Customers would rather relate their unhappy experiences to people around them.C Few customers believe the service will be improved.D Customers have no easy access to store managers.63. What does Paula Courtney imply by saying “…the shopper must also find a replacement”(Line 2, Para. 4)?A New customers are bound to replace old ones.B It is not likely the shopper can find the same products in other stores.C Most stores provide the sameD Not complaining to the manager causes the shopper some trouble too.64. Shop owners often hire moonlighting police as parking attendants so that shoppers_____A can stay longer browsing in the storeB won’t have trouble parking their carsC won’t have any worries about securityD can find their cars easily after shopping65. What contributes most to smoothing over issues with customers?A Manners of the salespeopleB Hiring of efficient employeesC Huge supply of goods for saleD Design of the store layout.66. T o achieve better shopping experiences, customers are advised to _________.A exert pressure on stores to improve their serviceB settle their disputes with stores in a diplomatic wayC voice their dissatisfaction to store managers directlyD shop around and make comparisons between stores3. The January fashion show, called Future Fashion , exemplified how far green design has come. Organized by the New York-based nonprofit Earth Pledge, the show inspired many top designers to work with sustainable fabrics for the first time. Several have since made pledges to include organic fabrics in their lines.The designers who undertake green fashion still face many challenges. Scott Hahn, cofounder with Gregory of Rogan and Loomstate, which uses all-organic cotton, says high-quality sustainable materials can still be tough to fine . “Most designers with existing labels are finding there aren’t comparable fabrics that can just replace what you’re doing and shat your customers are used to,”he says. For example, organic cotton and non-organic cotton are virtually indistinguishable once woven into a dress. But some popular synthetics, like stretch nylon, still have few eco-friendly equivalents.Those who do make the switch are finding they have more support. Last year the influential trade show Designers & Agents stopped charging its participation fee for young green entrepreneurs(企业家) who attend its two springtime shows in Los Angeles and New York and gave special recognition to designers whose collections are at least 25% sustainable . It now counts more than 50 green designers, up from fewer than a dozen two years ago. This week Wal-Mart is set to announce amajor initiative aimed at helping cotton farmers go organic: it will buy transitional(过渡型的) cotton at higher prices , thus helping to expand the supply of a key sustainable material . “Mainstream is about to occur,”says Hahn.Some analysts(分析师) are less sure . Among consumers, only 18%are even aware that ecofashion exists, up from 6% four years ago. Natalie Hormilla, a fashion writer, is an example of the unconverted consumer, when asked if she owned any sustainable clothes, she replied: “Not that I’m aware of.”Like most consumers, she finds little time to shop, and when she does, she’s on the hunt for “cute stuff that isn’t too expensive.”By her own admission, green just isn’t yet on her mind. But –thanks to the combined efforts of designers, retailers and suppliers –one day it will be.57. What is said about Future Fashion?A) It inspired many leading designers to start going green.B) It showed that designers using organic fabrics would go far.C) It served as an example of how fashion shows should be organized.D) It convinced the public that fashionable clothes should be made durable.58. According to Scott Hahn, one big challenge to designers who will goorganic is that .A) much more time is needed to finish a dress using sustainablematerials .B) they have to create new brands for clothes made of organicmaterials .C) customers have difficulty telling organic from non-organicmaterials .D) quality organic replacements for synthetics are not readilyavailable .59. We learn from Paragraph 3 that designers who undertake greenfashion .A) can attend various trade shows free .B) are readily recognized by the fashion worldC) can buy organic cotton at favorable prices .D) are gaining more and more support .60. What is Natalie Hormilla’s attitude toward ecofashion?A) She doesn’t seem to care about it. C) She is doubtful of itspractical value.B) She doesn’t think it is sustainable D) She is very muchopposed to the idea61. What does the author think of green fashion?A) Green products will soon go mainstream.B) It has a very promising future.C) Consumers have the final say.D) It will appeal more to young people.Passage TwoQuestions 62 to 66 are based on the following passage.Scientists have devised a way to determine roughly where a person has lived using a strand(缕) of hair , a technique that could help track the movements of criminal suspects or unidentified murder victims .The method relies on measuring how chemical variations in drinking water show up in people’s hair.“You’re what you eat and drink, and that’s recorded in you hair,”said Thure Cerling, a geologist at the University of Utah.While U.S diet is relatively identical, water supplies vary. The differences result from weather patterns. The chemical composition of rainfall changes slightly as raid clouds move.Most hydrogen and oxygen atoms in water are stable , but traces of both elements are also present as heavier isotopes (同位素) . The heaviest raid falls first .As a result, storms that form over the Pacific deliver heavier water to California than to Utah.Similar patterns exist throughout the U.S. By measuring the proportion of heavier hydrogen and oxygen isotopes along a strand of hair, scientists can construct a geographic timeline. Each inch of hair corresponds to about two months.Cerling’s team collected tap water samples from 600 cities and constructed a mop of the regional differences. They checked the accuracy of the map by testing 200 hair samples collected from 65 barber shops.They were able to accurately place the hair samples in broad regions roughly corresponding to the movement of raid systems.“It’s not good for pinpointing (精确定位),”Cerling said . “It’s good for eliminating many possibilities.”Todd Park, a local detective, said the method has helped him learn more about an unidentified woman whose skeleton was found near Great Salt Lake.The woman was 5 feet tall. Police recovered 26 bones, a T-shirt and several strands of hair.When Park heard about the research, he gave the hair samples to the researchers. Chemical testing showed that over the two years before her death, she moved about every two months.She stayed in the Northwest, although the test could not be more specific than somewhere between eastern Oregon and western Wyoming.“It’s still a substantial area,”Park said “But it narrows it way down for me.”62. What is the scientists’new discovery?A) One’s hair growth has to do with the amount of water they drink.B) A person’s hair may reveal where they have lived.C) Hair analysis accurately identifies criminal suspects.D) The chemical composition of hair varies from person to person.63. What does the author mean by “You’re what you eat and drink”(Line 1, Para.3)?A) Food and drink affect one’s personality development.B) Food and drink preferences vary with individuals.C) Food and drink leave traces in one’s body tissues.D) Food and drink are indispensable to one’s existence.64. What is said about the rainfall in America’s West?A) There is much more rainfall in California than in Utah.B) The water it delivers becomes lighter when it moves inland.C) Its chemical composition is less stable than in other areas.D) It gathers more light isotopes as it moves eastward.65. What did Cerling’s team produce in their research?A) A map showing the regional differences of tap water.B) A collection of hair samples from various barber shops.C) A method to measure the amount of water in human hair.D) A chart illustrating the movement of the rain system.66. What is the practical value of Cerling’s research?A) It helps analyze the quality of water in different regions.B) It helps the police determine where a crime is committed.C) It helps the police narrow down possibilities in detective work.D) It helps identify the drinking habits of the person under investigation.4.Throughout this long, tense election, everyone has focused on thepresidential candidates and how they’ll change America. Rightly so, but selfishly, I’m more fascinated by Michelle Obama and what she might be able to do, not just for this country, but for me as an African-American woman. As the potential First Lady, she would have the world’s attention. And that means that for the first time people will have a chance to get up close and personal with the type of African-American woman they so rarely see.Usually, the lives of black women go largely unexamined. The prevailing theory seems to be that we’re all hot-tempered single mothers who can’t keep a man. Even in the world of make-believe, black women still can’t escape the stereotype of being eye-rolling, oversexed females raised by our never-married, alcoholic (酗酒的) mothers.These images have helped define the way all women are viewed, including Michelle Obama. Before she ever gets the chance to commit to a cause, charity or foundation as First Lady, her most urgent and perhaps most complicated duty may be simple to be herself.It won’t be easy. Because few mainstream publications have done in-depth features on regular African-American women, little is known about who we are, what we think and what we face on a regular basis. For better or worse, Michelle will represent us all.Just as she will have her critics, she will also have millions of fans who usually have little interest in the First Lady. Many African-American blogshave written about what they’d like to see Michelle bring to the White House—mainly showing the world that a black woman can support her man and raise a strong black family. Michelle will have to work to please everyone—an impossible task. But for many African-American women like me, just a little of her poise (沉着), confidence and intelligence will goa long way in changing an image that’s been around for far too long.57. Why does Michelle Obama hold a strong fascination for the author?A) She serves as a role model for African women.B) She possesses many admirable qualities becoming a First Lady.C) She will present to the world a new image of African-American women.D) She will pay closer attention to the interests of African-American women.58. What is the common stereotype of African-American women according to the author?A) They are victims of violence. B) They are of an inferior violence.C) They use quite a lot of body language. D) They live on charity and social welfare.59. What do many African-Americans write about in their blogs?A) Whether Michelle can live up to the high expectations of her fans.B) How Michelle should behave as a public figure.C) How proud they are to have a black woman in the White House.D) What Michelle should do as wife and mother in the White House.60. What does the author say about Michelle Obama as a First Lady?A) However many fans she has, she should remain modest,B) She shouldn’t disappoint the African-American community.C) However hard she tries, she can’t expect to please everybody.D) She will give priority to African-American women’s concerns.61. What do many African-American women hope Michelle Obama will do?A) Help change the prevailing view about black women.B) Help her husband in the task of changing America.C) Outshine previous First Lady.D) Fully display her fine qualities.Passage TwoQuestions 62 to 66 are based on the following passage.When next year’s crop of high-school graduates arrive at Oxford University in the fall of 2009, they’ll be joined by a new face; Andrew Hamilton, the 55-year-old provost (教务长) of Yale, who’ll become Oxford’s vice-chancellor—a position equivalent to university president in America.Hamilton isn’t the only educator crossing the Atlantic. Schools in France, Egypt, Singapore, etc, have also recently made top-level hiresfrom abroad. Higher education has become a big and competitive business nowadays, and like so many businesses, it’s gone global. Yet the talent flow isn’t universal. High-level personnel tend to head in only one direction: outward from America.The chief reason is that American schools don’t tend to seriously consider looking abroad. For example, when the board of the University of Colorado searched for a new president, it wanted a leader familiar with the state government, a major source of the university’s budget. “We didn’t do any global consideration,”says Patricia Hayes, the board’s chair. The board ultimately picked Bruce Benson, a 69-year-old Colorado businessman and political activist (活动家) who is likely to do well in the main task of modern university presidents: fund-raising. Fund-raising is a distinctively American thing, since U.S. schools rely heavily on donations. The fund-raising ability is largely a product of experience and necessity.Many European universities, meanwhile, are still mostly dependent on government funding. But government support has failed to keep pace with rising student number. The decline in government support has made funding-raising an increasing necessary ability among administrators and has hiring committees hungry for Americans.In the past few years, prominent schools around the world have joined the trend. In 2003, when Cambridge University appointed AlisonRichard, another former Yale provost, as its vice-chancellor, the university publicly stressed that in her previous job she had overseen “a major strengthening of Yale’s financial position.”Of course, fund-raising isn’t the only skill outsiders offer. The globalization of education means more universities will be seeking heads with international experience of some kind of promote international programs and attract a global student body. Foreigners can offer a fresh perspective on established practices.62. What is the current trend in higher education discussed in the passage?A) Institutions worldwide are hiring administrators from the U.S.B) A lot of political activists are being recruited as administrators.C) American universities are enrolling more international students.D) University presidents are paying more attention to funding-raising.63. What is the chief consideration of American universities when hiring top-level administrators?A) The political correctness. B) Their ability to raise funds.C) Their fame in academic circles. D) Their administrative experience.64. What do we learn about European universities from the passage?A) The tuitions they charge have been rising considerably.B) Their operation is under strict government supervision.。

大学英语四级阅读理解习题及答案

大学英语四级阅读理解习题及答案高校英语四级阅读理解习题及答案引导语：英语六级阅读理解难度不一般，以下是我整理的高校英语四级阅读理解习题及答案，欢迎参考!Questions 21 to 25 are based on the following passage:It is simple enough to say that since books have classes fiction, biography, poetrywe should separate them and take from each what it is right that each should give us. Yet few people ask from books what books can give us. Most commonly we come to books with blurred and divided minds, asking of fiction that it shall be true, of poetry that it shall be false, of biography that it shall be flattering, of history that it shall enforce our own prejudices. If we could banish all such preconception when we read, that would be an admirable beginning. Do not dictate to your author; try to become him. Be his fellow worker and accomplice(同谋). If you hang back, and reserve and criticize at first, you are preventing yourself from getting the fullest possible value from what you read. But if you open your mind as widely as possible, then signs and hints of almost imperceptible finess(委婉之处), from the twist and turn of the first sentences, will bring you into the presence of a human being unlike any other. Steep yourself in this, acquaint yourself with this, and soon you will find that your author is giving you, or attempting to give you, something far more definite. The thirty two chapters of anovelif we consider how to read a novel firstare an attempt to make something as formedand controlled as a building but words are more impalpable than bricks, reading is a longer and more complicated process than seeing. Perhaps the quickest way to understand the elements of what a novelist is doing is not to read, but to write; to make your own experiment with the dangers and difficulties of words. Recall, then, some event that has left a distinct impression on youhow at the corner of the street, perhaps, you passed two people talking. A tree shook; an electric light danced; the tone of the talk was comic, but also tragic; a whole vision, an entire conception, seemed contained in that moment.21.What does the author mean by saying "Yet few people ask from books what books can give us.'?A.The author means that lots of people read few books.B.The author thinks that readers have only absorbed part of knowledge in books.C.The author holds that few people have a proper idea about what content some kind of books should include.D.The author considers that readers can scarcely understand most of the books.22.According to the passage, which of the following statement is right?A.A reader should find some mistakes when he is reading.B.The more difficult a book is, the more you can get fromit.C.To read something is easier than to watch something.D.One should be in the same track with the writer when he is reading.23.What is the possible meaning of "impalpable' (Paragraph 2) in the passage?A.Clear.B.Elusive.C.Delicate.D.Precise.24.Whats the main idea of this passage?A.The importance of reading.B.The proper way to read.C.How to get most from one book.D.The characters of a good book.25.When a writer is writing he often get the whole conception ____.A.after a long times thinkingB.through an instant inspirationC.according to his own experienceD.by way of watching the objects attentively参考答案：21.答案C。

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大学英语四级阅读理解试题及答案(总84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--大学英语四级阅读理解试题及答案（二）are becoming busier with their workto the writer ,the most important character for a good manager is his ________.fearing stressthe art of relaxationsense of responsibilitycontrol over performanceof the follwing statements is ture?can find some ways to avoid stressis always harmful to peopleis easy to change the hagit of keeping oneself busy with work.people can withstand different amounts of stressParagraph 3, "such a reaction" refers back to_______.a."making a choice between 'flight' or 'fight'"b."reaction to stress both chemically and physically"c."responding to crises quickly"d."losing heart at the signs difficulties"the last sentence of the passage,"do so " refers to ______.a."expose ourselves to stress"b."find ways to deal with stress"c."remove stress from our lives"d."established links between diseases and stress"答案：dadbc七In the 1960s, many young Americans were dissatisfied with American society. They wanted to end the Vietnam War and to make all of the people in the . epual. Some of them decided to "drop out" of American society and form their own societies . They formed utopian communities , which they called "communes," where they could follow their philosophy of "do your own thing." A group of artists founded a commune in southern Colorado called "Drop City." Following the ideas of philosopher and architect Buckminster Fuller they built domeshaped houses from pieces of old cars. Other groups, such as author Ken Kesey's Merry Pranksters, the followers fo San Francisco poet Steve Gakin, and a group that called itself the Hog Farm, lived in old school huses and traveled around the United States. The Hog Farm become famous when they helped organize the Woodstock Rock Festival in 1969. Steve Gaskin's followers tried to settle down on a farm in Tennessee, but they had to leave when some members of the gruop were arrested for growing marijuana.Not all communes believed in the philosophy of "do you own thing," however . Twin Oaks , a commune founded in Virgiania in the late 1960s, was based on the ideas of psychologist The people who lived at Twin Oaks were carefully controlled by Skinner's "conditioning" techniques to do things that were good for the community. In 1972, Italian architect Paolo Soleri began to build Arcosanti, a utopian city Arizsona where 2500 people will live closely together in one large building called an "archology" Soleri believes that people must live closely together so that they willall become one.did some young Americans decide to "drop out" of scoiety during the 1960s?were not satisfied with American society.wanted to grow marijuana.wanted to go to the Vietnam War.did not want all people to be equal.did the members of the Hog Farm commune live?dome-shaped houseold school husesa farm inTennesseean archology in Arizonagave the people of Drop City the idea to bulid dome-shaped house?SoleriGaskinFullerwas the Twin Oaks commune base onphilosophy of "do your own thing"in the late 1960sideas of psychologistbelief that people must live closely togerher.is an "archology"person who studies archaeologylarge building where people live closely togethercity in A rizonatechnique to contorl people答案：abdcb八There are two factors which determine an individual's intelligence. The first is the sort of brain he is born with. Human brains differ considerably, some being more capable than others. But no matter how good a brain he has to begin with, an individual will have a low order of intelligence unless he has opportunities to learn. So the second factor is what happens to the individual—the sort of environment in which he is reared. If an individual is handicapped envionmentally ,it is likely that his brain will fail to develop and he will never attain the level of intelligence of which he is capable.The importance of environment in determining an individual's intellingence can be demonstrated by the case history of theidentical twins, Peter and Mark X. Being identical, the twins had identical brains at birth, and their growth processes were the same. When the twins were three months old , their parents died, and they were placed in separate foster homes. Peter was reated by parents of low intelligence in an isolatedcommunity with poor educational was reared inthe home of well-to-do parents who had been to college. He was read to as a child , sent to good schools, and given every opportunity to be stimulated enviromental difference continued until the twins were in their late teens, when they were giben tesets to measure their intelligence. Mark's . was 125, twenty-five points higher than the average and fully forty points higher than his identical brother. Given equal opportunities , the twins , having identical brains,would have tested at roughly the same level.selection can best be titled_________.Your Intelligenceand EnvironmentCase of Peter and Markthe brain Influences Intelligencebeststatement of the main idea of this passage is that _____.brains differ considerablybrain a person is born with is improtant in determining his intelligenceis crucial in determining a person's intelligenced. persons having identical brains will have roughly the same intelligenceto the passage , the average _____.case history of the twins appears to support the conclusion that _______.with identical brains seldom test at same levelindividual's intelligence is determined only by his enviromentof opportunity blocks the growth of intelligenceof enviroment produce changes in the structure of the brainpassage suggests that an individual 's be predicted atbirththe same throuthout his lifebe increased by educationdetermined by his childhood答案：bcbcc九As she walked round the huge department store,Edith reflected how difficult it was to choose a suitable Christmas present for her wish that he was as easy to please as her mother, who was always delighted with perfumeBesides,shoppong at this time of the year was a most disgreeable experience :people trod on your toes,poked you with their elbows and almost knocked you overin their haste to get to a bargain ahead of you.Partly to have a rest, Edith paused in front of a counter where some attracive ties were on display. "They are real silk," the assistant assured her, trying to tempt her. "Worth double the price." But edit knew from past experience that her choice of ties hardly ever pleased her father.She moved on reluctantly and then quite by chance, stopped where a small crowd of man had gathered round a counter. She found some good quality pipes on sale-----and the prices were very reasonable. Edith did not hesitate for long : although her father only smoked a pipe occasionally, she knew that this was a present which was bund to please him.When she got home,with her small well-chosen present concealed in her handbag, her parents were already at the supper table. Her motherwas in an especially cheerful mood, "Your father has at last to decided to stop smoking." She informed her daughter.'s father _______.not like presentgot presenttiesdifficult to choose a present forassistant spoke to Edith because she seemed_______.in tiesneed of comfortstopped at the next counter_________.'s father smoked a pipe_______.he was obligedsocial occasionstime to timehe was delightedwas very disagreeable at that time of the year because_______.trod on each other's toespoked each other with their elbowsknocked each otherwere doing their shopping in a great hurry答案：dbdcd Research by the University of Exeter1 has revealed that ants have a big impact on their local environment as a result of their activity as "ecosystem engineers" and predators（食肉动物）. The study, published in the Journal of Animal Ecology, found that ants have two distinct（显著的）effects on their local environment. Firstly, through moving of soil by nest building2 activity and by collecting food they affect the level of nutrients（营养物）in the soil. This can indirectly impact the local populations of many animal groups, from decomposers（腐生物,分解体）to species much higher up the food chain. Secondly, they prey(捕食) on a wide range of other animals, including larger prey which can be attacked by vast numbers of ant workers. Dirk Sanders, an author of the study from the university’s Centre for Ecology and Conservation, said: "Ants are very effective predators which thrive in huge numbers. They’re also very terr itorial3 and very aggressive, defending their resources and territory against other predators. All of this means they have a strong influence on their surrounding area." "In this research, we studied for thefirst time how big this impact is and the subtleties(微妙) of it. What we found is that despite being predators, their presence can also lead to an increase in density anddiversity of other animal groups4. They genuinely play a key role in the local environment, having a big influence on the grassland food web," Sanders said. The study, carried out in Germany, studied the impact of the presence of different combinations and densities of black garden ants and common red ants, both species which can be found across Europe, including in the UK. It found that a low density of ants in an area increased the diversity and density of other animals in the local area, particularly the density of herbivores(食草动物) and decomposers. At higher densities ants had no or the opposite effect, showing that predation is counteracting the positive influence. Dr Frank van Veen, another author on the study, said: "What we find is that the impact of ants on soil nutrient levels has a positive effect on animal groups at low levels, but as the number of ants increases, their predatory impacts have the bigger effect — thereby counteracting the positive influence via ecosystem engineering." Ants are important components of ecosystems not only because they constitute a great part of the animal biomass5 (生物量) but also because they act asecosystem engineers. Ant biodiversity6（生物多样性）is incredibly high and these organisms are highly responsive（敏感的，易受影响的） to human impact, which obviously reduces its richness. However, it is not clear how such disturbance damages the maintenance of ant services to the ecosystem7．Ants are important in below ground processes8 through the alteration of the physical and chemical environment and through their effects on plants, microorganisms, and other soil organismsThe standardized educational or psychological tests, which are widely used to aid in selecting, assigning or promoting students, employees and military personnel, have been the target of recent attacks in books, magazines, the daily press, and even in Congress. The target is wrong, for, in attacking the tests, critics divert attention from the fault that lies with ill-informed or incompetent users. The tests themselves are merely tools. Whether the results will be valuable, meaningless, or even misleading depends partly upon the tool itself but largely upon the user. All informed predictions of future performance are based upon some knowledge of relevant past performance. How well the predictions will be validated by later performance depends upon the amount, reliability and appropriateness of the information used and on the skill and wisdom with which it is interpreted. Anyone who keeps careful score knows that the information available is always incomplete and that the predictions are always subject to error. Standardized tests should be considered in this context: they provide a quick, objective method of getting some kind of information about what a person has learned, the skills he has developed, or the kind of person he is. The information so obtained has, qualitatively, the same advantages and shortcomings as other kinds of information. Whether to use tests, other kinds of information, or both in a particular situation depends, therefore, upon the empirical evidence concerning comparative validity and upon such factors as cost and availability. In general, the tests work most effectively when the traits or qualities to be measured can be most precisely defined ( for example, ability to do well in a particular course of training program ) and leasteffectively when what is to be measured or predicted cannot be well defined, for example, personality or creativity. Properly used, they provide a rapid means of getting comparable information about many people. Sometimes they identify students whose high potential has not been previously recognized.The modern sailing ship was developed by a man who never went to sea.He was Prince Henry of Portugal,the younger son of the Partuguese king and an English princess.Prince Henry lived in the fifteenth a boy he became devoted to the sea,and he dedicated himself to improving the design of ships and the methods of sailing 1416,when he was twenty two,Henry founded a school for mariners, to which he invited everyone who could help him—Jewish astronomers,Italian and Spanish sailors, and Arab mathematicians and map makers who knew to use the crudecompass of the day and could improve it.Henry’s goal was to design and equip vessels that would be capable of making long ocean voyages without having to hug the caravel carried more sail and was longer and slimmer than any ship then made,yet was tough enough to withstand gales at also developed the carrack,which was a slower ship,but one that was capable of carrying more cargo.To Prince Henry the world owes credit for development of craft that made oceanic exploration lives in history as Henry the Navigator.The modern sailing ship was developed by a man who never went to sea.He was Prince Henry of Portugal,the younger son of the Partuguese king and an English princess.Prince Henry lived in the fifteenth a boy he became devoted to the sea,and he dedicated himself to improving the design of ships and the methods of sailing 1416,when he was twenty two,Henry founded a school for mariners, to which he invited everyone who could help him—Jewish astronomers,Italian and Spanish sailors, and Arab mathematicians and map makers who knew to use the crudecompass of the day and could improve it.Henry’s goal was to design and equip vessels that would be capable of making long ocean voyages without having to hug the caravel carried more sail and was longer and slimmer than any ship then made,yet was tough enough to withstand gales at also developed the carrack,which was a slower ship,but one that was capable of carrying more cargo.To Prince Henry the world owes credit for development of craft that made oceanic exploration lives in history as Henry the Navigator.十Now let us look at how we read. When we read a printed text, our eyes move across a page in short, jerky movement. We recognize words usually when our eyes are still when theyfixate. Each time they fixate, we see a group of words. This is known as the recognition span or the visual span. The length of time ofr which the eyes stop ---the duration of the fixation ----varies considerably from person to person. It also vaies within any one person according to his purpose in reading and his familiarity with the text. Furthermore, it can be affected by such factors as lighting and tiredness. Unfortunately, in the past, many reading improvement courses have concentrated too much on how our eyes move across the printed page. As a result of this misleading emphasis on the purely visual aspects of reading, numerous exercises have been devised to train the eyes to see more words at one fixation. For instance, in some exercises, words are flashed on to a screen for, say, atenth or a twentieth of a second. One of the exercises has required students to fix their eyes on some central point, taking in the words on either side. Such word patterns are often constructed in the shape of rather steep pyramids so the reader takes in more and more words at each successive fixation. All these exercises are very clever, but it’s one thing to improve a person’s ability to see words and quite another t hing to improve his ability to read a text efficiently. Reading requires the ability to understand the relationship between words. Consequently, for these reasons, many experts have now begun to question the usefulness of eye training, especially since any approach which trains a person to read isolated words and phrases would seem unlikely to help him in reading a continuous textIf the population of the earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the the middle of the 21st century,if present trends continue, we will have used up all the oil that drives our cars,for if scientists develop new ways of feeding the human race,the crowded conditions on earth will make it necessary for lus to look for open space somewhere else. But none of the other planets in our solar system are capable of supporting life at present. One possible solution to the problem, however,has recently been suggested by American scientist, Professor Carl Sagan.Sagan believes that before the earth's resources are compleetely exhausted it will be possible to change the atmophere of Venus and so create a new world almost as large as earth itself. The difficult is that Venus is much hotter than the earth and there is only a tiny amount of water there.Sagan proposes that algae organisms that can live in extremely hot or cold atmospheres and at the same time produce oxygen,should be bred in condition similar to those on soon as this has been done, the algae will be placed in small rockets. Spaceship will then fly to Venus and fire the rockets into the atmosphere .In a fairly short time, the alge will break down the carbon dioxide into oxygen and carbon.When the algae have done theri work, the atmosphere will become cooler,but befor man can set foot on Venus it will be neccessary for the oxygen to produce rain. The surface of the planet will still be too hot for man to land on it but the rain will eventually fall andin a few years something like earth will be reproduced on Venus.long run, the most insoluble problem caused by population growth on earth will probably be the lack of ______.Sagan believes that Venus might be colonized from earth because _____might be possible to change its atmosphereatmosphere is the same as the earth'sis a good supply of water on Venusdays on Venus are long enoughVenus there is a lot of ________.dioxidemonoxideare plants that can____.in very hot temperaturesin very cold temperaturesoxygenof the above5. Man can land on Venus only when_______.algae have done their workatmosphere becomes cooleroxygenrains there答案：cabddHeroin addictions today is found chiefly among young men of minority groups inghetto(犹太人区) the more than 60,000 known addicts,more than half live in New York of them live in New York figures show that more than half of the addicts are under 30 years of age.Narcotic addiction in the United States is not limted to heroin middle-aged and older people who take narcotic drugs regularly to relieve pain can also become do some people who can get drugs easily,such as doctors,nurses,and show that this type of addict has personality and emotional problems very similar to those of other regular narcotic users.Many addicts admit that getting a continued supply is the main object of their addict’s concentration on getting drugs often prevents continuing an education or workingat a health is often may be sick one day from the effects of withdrawal and sick the next day from an show that an addict’s life span may be shortened by 15 to 20 addict isusually in trouble with the family and almost always in trouble with the law.Some studies suggest that many of the known narcotic addicts had some trouble with the law before they became addicted,they may become even more involved with crime becauseit costs so much to support the heroin habit.Most authorities agree that the addict’s involvement with crime is not a direct eff ect of the drug to crime is usually the only way to get that much addicts’ crimes are nearly always thefts or other crimes against property.Federal penalties for illegal narcotics usage were established under the Harris on Act of Act provides that illegal possession of narcotics is punishable by fines and/or can range from 2 to 10 years for the first offense,5 to 20 years for the second,and 10 to 20 years for further offenses.Illegal sale of narcotics can mean a fine of $20,000 and a sentence from 20 to 40 years for later person who sells narcotics to someone under 18 is refused parole and probation,even for the first the drug is heroin,he can be sentenced to life imprisonment or to death.Scientists say they have discovered hints of alien life on the Saturn's moon. The discovery of a sort of life was announced after researchers at the US space agency,NASA,analyzed data from spacecraft Cassini,which pointed to,the existence of methane-based form of life on Saturn's biggest moon.Scientists have reportedly discovered clues showing primitive alien beings are"breathing" in Titan's dense atmosphere filled with hydrogen.They argue that hydrogen gets absorbed before hitting Titan's planet-like surface covered with methane lakes and rivers. This,they say,points to the existence of some"bugs" consuming the hydrogen at the surface of the moon less than half the size of the Earth."We suggested hydrogen consumption because it's the obvious gas for life to consume on Titan,similar to the way we consume oxygen on Earth,"says NASA scientist Chris McKay."If these signs do turn out to be a sign of life,it would be doubly exciting because it would represent a second form of life independent from water-based life on Earth."To date,scientists havenot yet detected this form of life anywhere,though there are liquid- water-based microorganisms on Earth that grow well on methane or produce it as a waste product. On Titan, where temperatures are around 90 Kelvin(minus 290 degrees Farenheit),a methanebased organism would have to use a substance that is liquid as its medium for living processes, but not water itself. Water is frozen solid on Titan's surface and much too cold to support life as we know it.Scientists had expected the Sun's interactions with chemicals in the atmosphere to produce a coating of acetylene on Titan's surface. But Cassini detected no acetylene on the surface.The absence of detectable acetylene on the Titan's surface can very well have a non-biological explanation,said Mark Allen,a principal investigator of the NASATitan team."Scientific conservatism suggests that a biological explanation should be the last choice after all non-biological explanations are addressed,"Allen said. "We have a lot of work to do to rule out possible non-biological explanations. It is more likely that a chemical process,without biology,can explain these results."1. Passage OneUnless we spend money to spot and prevent asteroids(小行星)now，one might crash into Earth and destroy life as we know it，say some scientists.Asteroids are bigger versions of the meteoroids(流星)that race across the night orbit the sun far from Earth and don't threaten there are also thousands whose orbits put them on a collision course with Earth.Buy $ 50 million worth of new telescopes right spend $ 10 million a year for the next 25 years to locate most of the space the time we spot a fatal one，the scientists say，we'll have a way to change its course.Some scientists favor pushing asteroids off course with nuclear the cost wouldn't be cheap.Is it worth it Two things experts consider when judging any risk are: 1) How likely the event is; and 2) How bad the consequences if the event occurs. Experts think an asteroid big enough to destroy lots of life might strike Earth once every 500，000 years. Sounds prettyrare-but if one did fall，it would be the end of the world.“If wedon't take care of these big asteroids，they'll take care of us，”says one scientist.“It's that simple.”The cure，though，might be worse than the disease. Do we really want fleets of nuclear weapons sitting around on Earth?“The world has less to fear fromdoomsday(毁灭性的) rocks than from a great nuclear fleet set against them，” said a New York Times article.21. What does the passage say about asteroids and meteoroidsA) They are heavenly bodies different in composition.B) They are heavenly bodies similar in nature.C) There are more asteroids than meteoroids.D) Asteroids are more mysterious than meteoroids.[答案及分析]：［B］文章第二段第一句明确指出“小行星和划破夜空的流星是性质一样的物质，只是体积大些。