考博阅读理解练习
[外语类试卷]考博英语(阅读理解)练习试卷2.doc
[外语类试卷]考博英语(阅读理解)练习试卷2一、Reading Comprehension0 In science, a theory is a reasonable explanation of observed events that are related. A theory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.A useful theory, in addition to explaining past observations, helps to predict events that have not as yet been observed. After a theory has been publicized, scientists design experiments to test the theory. If observations confirm the scientists' predictions, the theory is supported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may have to be re-vised or rejected.Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said: "science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house. "Most scientists start an investigation by finding out what other scientists have learned about a particular problem. After known facts have been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem are formulated. These possible solutions are called hypotheses.In a way, any hypothesis is a leap into the unknown. It extends the scientist's thinking beyond the known facts. The scientist plans experiments, performs calculations, and makes observations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When,hypotheses are confirmed, they are incorporated into theories. (296 words)1 What does Jules Henri Poincare mean in the third paragraph?(A)A science is difficult to form.(B)Building a house is like performing experiments.(C)Science is more than a collection of facts.(D)Scientific experiments have led to improved technology.2 In the fourth paragraph, the author implies that imagination is most important to scientists when they(A)evaluate previous work on a problem(B)formulate possible solutions to a problem(C)gather known facts(D)close an investigation3 The reason the author considers "hypothesis" as "a leap into the unknown" is that______.(A)it is not reliable(B)it is a kind of adventure(C)it goes beyond gathered facts(D)it requires too much unrealistic effort to formulate4 What is the definition of a "theory"?(A)It's a reasonable explanation of known knowledge related.(B)It is the product of a scientist's imagination.(C)It results from previous theories.(D)It can't predict events that have not as yet been observed.5 What is NOT required to be a scientist?(A)Professional.(B)Creative.(C)Imaginative.(D)Hypocritical.5 Ours has become a society of employees. A hundred years or so ago only one out of every five Americans at work was employed, i. e. , working for somebody else. Today only one out of five is not employed but working for himself. And wrhen fifty years ago "being employed" meant working as a factory laborer or as a farmhand, the employee of today is increasingly a middle-class person with a substantial formal education, holding a professional or management job requiring intellectual and technical skills. Indeed, two things have characterized American society during these last fifty years: middle class and upper-class employees have been the fastest-growing groups in our working population—growing so fast that the industrial worker, that oldest child of the Industrial Revolution,has been losing in numerical importance despite the expansion of industrial production.Yet you will find little of anything written on what it is to he an employee. You can find a great deal of very <u>dubious</u> advice on how to get a job or how to get a promotion. You can find a great deal of work in a chosen field, whether it is the mechanist's trade or bookkeeping. Every one of these trades requires different skills, set different standards, and requires a different preparation. Yet they all have employeeship in common. And increasingly, especially in the large business or in government, employeeship is more important to success than the special professional knowledge or skill. Certainly more people fail because they do not know the requirements of being an employee than because they do not adequately possess the skills of their trade; the higher you climb the ladder, the more you get into administrative or executive work, the greater the emphasis on ability to work within the organization rather than on technical ability or professional knowledge. (301 words)6 It is implied that fifty years ago(A)American working people were employed only in factories(B)the majority of American intellectuals were employees(C)the percentage of intellectuals employed was almost the same as that of ordinary workers(D)most employees were less formally educated7 According to the passage, who is the oldest child of the Industrial Revolution?(A)Intellectuals.(B)Rich people.(C)Bosses.(D)Factory workers.8 The word "dubious" (Line 2, Para. 2) in the second paragraph most probablymeans______.(A)valuable(B)useful(C)doubtful(D)helpful9 According to the writer, what is the most important requirement of being an employee? (A)Professional knowledge.(B)Technical ability.(C)Cooperation with other colleagues.(D)Independence.10 From the passage it can be seen that employeeship helps one______.(A)to be more successful in his career(B)to solve technical problems(C)to be more specialized in his field(D)to develop his professional skill10 In a perfectly free and open market economy, the type of employer—government or private- -should have little or no impact on the earnings differentials between women and men. However if there is discrimination against one sex, it is unlikely that the degree of discrimination by government and private employers will be the same. Differences in the degree of discrimination would result in earnings differentials associated with the type of employer. Given the nature of government and private employers, it seems most likely that discrimination by private employers would be greater. The results of a study by Fuchs support this assumption. Fuchs's results suggest that the earnings of women in an industry composed of government employees would by 14. 6 percent greater than the earnings of women in an industry composed exclusively of private employees, other things being equal.In addition, both Fuchs and Sanborn have suggested that the effect of discrimination by consumers on the earnings of self-employed women may be greater than the effect of either government or private employer discrimination on the earnings of women employees. To test this hypothesis, Brown made an experiment. His results suggest that men and women are not treated the same by employers and consumers. For men, self-employment is the highest earnings category, with private employment next, and government lowest. For women, this order is reversed.One can infer from Brown's results that consumers discriminate against self-employed women. In addition, self-employed women may have more difficulty than men in getting good employees and may encounter discrimination from suppliers and from financial institutions.Brown's results do not prove that government does not discriminate against women. They do, however, demonstrate that if government is discriminating against women, its discrimination is not having as much effect on women's earnings as is discrimination in the private sector. (302 words)11 Which of the following titles best describes the content of the passage as a whole? (A)The Necessity for Earnings Differentials in a Free Market Economy.(B)How Discrimination Affects Women's Choice of Type of Employment.(C)Why Women Are Discriminated by Government Employers, Private Employers and Consumers.(D)The Relative Effect of Discrimination by Government Employers, Private Employers, and Consumers on Women's Earnings.12 The passage mentions all of the following as difficulties that self-employed women may encounter EXCEPT______.(A)discrimination from suppliers(B)discrimination from consumers(C)discrimination from financial institutions(D)problems in obtaining government assistance13 Which of the following statements is true?(A)Both private, employers and government employers discriminate with equal effects on women's earnings.(B)Both private employers and government employers discriminate, hut the discrimination by private employers has a greater effect on women's earnings.(C)Both private employers and government employers discriminate, hut the discrimination by government employers has a greater effect on women's earnings.(D)Private employers discriminate, while government employers do not.14 According to Browns study, what earnings categories do women have, from highest to lowest?(A)Government employment, self-employment, private employment.(B)Government employment, private employment, self-employment.(C)Private employment, self-employment, government employment. (D)Private employment, government employment, self-employment.15 What is the author's intention to write this article?(A)To protest against the discrimination against women.(B)To show how much she has suffered as a woman.(C)To further prove Fuchs and Sanborn's studies.(D)To call for women to take immediate actions to defend themselves.。
考博英语(阅读理解)练习试卷5(题后含答案及解析)
考博英语(阅读理解)练习试卷5(题后含答案及解析) 题型有:1. Reading ComprehensionReading ComprehensionOne motivational analyst who became curious to know there had been such a great rise in impulse buying at supermarkets was James Vicary. He suspected that some special psychology must be going on inside the women as they shopped in supermarkets. His suspicion was that perhaps they underwent such an increase in tension when confronted with so many possibilities that they were forced into making quick purchases. He set out to find out if this were true. The best way to detect what was going on inside the shopper was through the use of a galvanometer or lie detector. That obviously was impractical. The next best thing was to use a hidden motion-picture camera and record the eye-blink rate of the women as they shopped. How fast a person blinks his eyes is a pretty good index of his state of inner tension. The average person, according to Mr. Vicary, normally blinks his eyes about 32 times a minute. If he is tense, he blinks them more frequently; and. under extreme tension, he may blink up to 50 or 60 times a minute. II he is notably relaxed, on the other hand, his eye-blink rate may drop to a subnormal twenty or less.Mr. Vicary set up his cameras and started following the ladies as they entered the store. The results were startling, even to him. Their eyeblink rate, instead of going up to indicate mounting tension, went down and down, to a very subnormal fourteen blinks a minute. The ladies fell into what Mr. Vicary calls a hypnoidal trance, a light kind of trance that, he explains, is the first stage of hypnosis. Mr. Vicary has decided that the main cause of the trance is that the supermarket is packed with products which in former years would have been items only kings and queens could have afforded and here in this fairyland they were available to all. Mr. Vicary theorizes: “Just within this generation, anyone can be a king or queen and go through these stores where the products say ‘buy me, buy me. “‘(344 words)1.Vicary’s curiosity was aroused by the fact that______.A.there was a decrease in sales in supermarketsB.women were showing strong resistance to products in supermarketsC.there seemed to be no logic in women’s buying habitsD.women were shopping very carefully正确答案:C解析:文章第一段就讲述了Vicary怀疑妇女在购物时有一种特殊的心理在起作用.与C“女性购物是没有逻辑理由”相近。
考博士英语试题及答案
考博士英语试题及答案一、阅读理解(共40分)1. 阅读下列短文,然后根据短文内容回答问题。
(每题2分,共10分)[短文内容略](1) What is the main idea of the passage?(2) What does the author suggest about the future of technology?(3) Why are some people hesitant to adopt new technologies?(4) What is the role of education in technological advancement?(5) How can individuals contribute to the development of technology?2. 阅读以下文章,然后根据文章内容选择最佳答案。
(每题2分,共10分)[文章内容略](1) A(2) B(3) C(4) D(5) E3. 阅读以下文章,并根据文章内容回答问题。
(每题3分,共20分) [文章内容略](1) What is the primary purpose of the article?(2) How does the author describe the impact of globalization?(3) What are some of the challenges faced by developing countries?(4) What solutions does the author propose to address the issues?(5) What is the author's conclusion regarding the futureof globalization?二、词汇与语法(共30分)1. 根据句子意思,选择正确的词汇填空。
考博英语(阅读理解)历年真题试卷汇编3.doc
考博英语(阅读理解)历年真题试卷汇编3(总分:40.00,做题时间:90分钟)一、Reading Comprehensio(总题数:4,分数:40.00)The United Nations Population Fund has picked October 31 as the day the world will be home to 7 billion people. For better and worse, it's a milestone. And there will be more milestones ahead. Fourteen years from now, there are expected to be 8 billion people on the planet. Most of the growth will occur in the world's poorer countries. Proportionally, Europe's population will decline, while Africa's will increase. At around the same time, India will overtake China as the most populous nation on Earth. The growing global population is just one side of the coin. A recent report from the World Health Organization signaled the seriousness of the human population explosion: more than 3 billion people — about half the world's population — are malnourished. Never before have so many, or such a large proportion, of the world's people been malnourished. And in a growing number of countries there is a seemingly unstoppable march toward sub-replacement fertility, whereby each new generation is less populous than the previous one, and population aging. As a result of declining fertility and increasing longevity, the populations of more and more countries are aging raging rapidly. Between 2005 and 2050, a rise in the population aged 60 years or over will be visible, whereas the number of children(persons under age 15)will decline slightly. Population aging represents, in one sense, a success story for mankind, but it also poses profound challenges to public institutions that must adapt to a changing age structure. The latest national census in China shows the number of elderly people in the country has jumped to more than 13. 3 percent of the population, an increase of nearly 3 percentage points on the percentage from the previous census in 2000. A quarter of the country's population will be over 65 by 2050, according to the National Population and Family Planning Commission. The growing number of elderly is a challenge that the government needs to tackle, we can't rely on the ever-increasing population to support them or maintain the nation's economic growth. Better solutions are needed, such as raising retirement ages to reflect the greater longevity and working capability of today's older adults and making adjustments so pension programs are more accessible. It was heartening to hear the Ministry of Human Resources and Social Security spokesperson announced in Beijing on Tuesday that the government will take retirement policy seriously and proactively. Shanghai began testing a flexible retirement system last October. Eligible employees in the private sector are allowed to postpone retirement until the age of 65 for men and 60 for women. Public servants, however, will continue to retire under the present system age 60 for men and 55 for women.(分数:10.00)(1).According to the passage, India will______in 14 years.(分数:2.00)A.be a poorer countryB.be the most populous countryC.decline in populationD.increase investment in Africa(2).What problem will result from the global population explosion?(分数:2.00)A.Population aging.B.Increasing longevity.C.Declining fertility.D.Expanding malnourishment.(3).Population on aging represents the following EXCEPT______.(分数:2.00)A.rapid economic developmentB.challenge to public in institutionsC.success story of mankindD.changing age structure(4).Today's older adults enjoy______.(分数:2.00)A.more working yearsB.more accessible pension programsC.greater longevityD.greater government support(5).What is the author's attitude toward the spokespersons announcement?(分数:2.00)A.Angered.B.Delighted.C.Indifferent.D.Disappointed.The United Nations declared last Friday that Somalia's famine is over. But the official declaration means little to the millions of Somalis who are still hungry and waiting for their crops to grow. Ken Menkhaus, professor of political science at Davidson College, said it was profoundly disappointing to be discussing another Somali famine, after he worked in the country during the 1991 —1992 one. Each famine, he said, has distinct characteristics, and this one unfold in slow motion over the past couple of years. That's at least partly because the Somali diaspora sent money home that delayed the worst effects. Menkhaus was among four experts on Somalia and famine who spoke at the Radcliffe Gym Monday evening. Who gathered for the event, "Sound the Horn: Famine in the Horn of Africa. " Paul Farmer, Kolokotrones University Professor of Global Health and Social Medicine, drew on his experience treating malnourished people in Haiti, where he has worked for decade, and said the human and social context of home, and aid to families should be part of wearing the child, he said. Similarly, broader agricultural interventions and fair trade policies are needed to boost local agricultural economies. Though famine is often thought of as a natural disaster, Monday's speakers said that is a false impression. Though Somalia suffered through a severe drought, with today's instant communications, transport systems can move massive amounts of food. Given today's global food markets, famine is too often a failure of local government and international response. "In today's 21st-century world, just about everything about famine is man-made. We're no longer in a world of man against nature. " said Robert Paarlberg, adjunct professor of public policy at the Harvard Kennedy School. Ethiopia, which was also affected by the recent drought, fared much better this time because of reforms implemented after the 2001 one. Likewise, Paarlberg said, northern and central Somalia, regions that fall outside of the influence of the Al-Shabaab militia, also fared better. There were several man-made features of this famine, which affected more than 10 million people and killed between 50, 000 and 100, 000, half of them children under age 5. The largest man-made feature was the role of the Al-Shabaab militia that rules the region and that kept food aid from reaching those in need. But the international community isn't blameless. As early as November 2010, an international famine early warning system was predicting the failure of rains in the region, but the international community didn't respond fully until an official famine was declared in July 2011. On top of that, U. S. anti-terrorism laws cut off food aid because Al-Shabaab, listed as a terrorist group, was taking some of it. Though the United Nations has declared the famine over, that was based on statistical measures, such as the number of people dying each day and the number of children who are malnourished. Though the official famine may be over, both U. N. officials and Monday's speakers said the crisis continues for the people of Somalia. Almost a third of the population remains dependent on humanitarian assistance, crops growing from recent rains will take months to reach maturity, and herds of cows, goats, and other animals were greatly reduced during the crisis. Michael Delaney, director of humanitarian response for Oxfam America, warned that the world will have another chance to get its response fight, because the warning signs are pointing to animpending famine in Africa's Sahel, the arid, continent-spanning transition zone just below the Sahara Desert.(分数:10.00)(1).The current Somali famine is different from the 1991 -1992 one in that______.(分数:2.00)A.it received less international aidB.worst effects came more slowlyC.it caught more attention from the worldD.it lasted longer despite help from the UN(2).In treating the malnourished patients, attention should be paid to the following EXCEPT______.(分数:2.00)A.making fair trade policiesB.aiding the patients' familiesC.ignoring the indication of povertyD.exercising agricultural interventions(3).What is implied by "We're no longer in a world of man against nature?"(分数:2.00)A.Natural disaster alone cannot explain famine.B.We live in a world of many man-made matters.C.The world is made up of conflicting social forces.D.Human beings fight with one another for better life.(4).Regarding the current famine in Somalia, who's to blame most?(分数:2.00)A.The United States.B.The Al-Shabaab militia.C.The United Nations FAO.D.The international community.(5).What problem still remains from the current Somali famine?(分数:2.00)A.The number of malnourished children remains unknown.B.Half of the population remains dependent on humanitarian assistance.C.Crops growing from recent rains were reaped before reaching maturity.D.Herds of cows, goats and other animals were greatly reduced during the famine.Both versions of the myth — the West as a place of escape from society and the West as a stage on which the moral conflicts confronting society could be played out — figured prominently in the histories and essays of young Theodore Roosevelt, the paintings and sculptures of artist Frederic Remington, and the short stories and novels of writer Owen Wister. These three young members of the eastern establishment spent much time in the West in the 1880s, and each was intensely affected by the adventure. All three bed felt thwarted by the constraints and enervating influence of the genteel urban world in which they had grown up, and each went West to experience the physical challenges and moral simplicities extolled in the dime novels. When Roosevelt arrived in 1884 at the ranch he had purchased in the Dakota Badlands, he at once bought a leather scout's uniform, complete with fringed sleeves and leggings. Each man also found in the West precisely what he was looking for. The frontier that Roosevelt glorified in such books as The Winning of the West(four volumes, 1889-1896), mad that the prolific Remington portrayed in his work, was a stark physical and moral environment that stripped away all social artifice and tested an individual's true ability and character. Drawing on a popular version of English scientist Charles Darwin's evolutionary theory, which characterized life as a straggle in which only the fittest and hast survived, Roosevelt and Remington exalted the disappearing frontier as the last outpost of an honest and tree social order. This version of the frontier myth reached its apogee in Own Wister's enormously popular novels The Virginian(1902), later reincarnated as a 1929 Gary Cooper movie and a 1960s television series. In Wister's tale the elemental physical and social environment of the Great Plains produces individuals like his unnamed cowboy hero, " the Virginian," an honest, strong, and compassionate man, quick to help the weak and fight the wicked. The Virginian is oneof nature's aristocrats-its-ill-educated and unsophisticated but uptight steady, and deeply moral. The Virginian sums up his own moral code in describing his view of God's justice; "He plays a square game with us. " For Wister, as for Roosevelt and Remington, the cowboy was the Christian knight on the Plains, indifferent to material gain as he upheld virtue, pursued justice, and attacked evil. Needless to say, the western myth in all its forms was far removed from the actual reality of the West. Critics delighted in pointing out that no one scene in The Virginian actually showed the hard physical labor of the cattle range. The idealized version of the West also glossed over the darker underside of frontier expansion —the brutalities of Indian warfare, the forced removal of the Indians to reservations, the racist discrimination against Mexican-Americans and blacks, the risks and perils of commercial agriculture and cattle growing, and the boom-and-bust mentality rooted in the selfish exploitation of natural resources.(分数:10.00)(1).Which of the following is probably the main reason for the author to mention Theodore Roosevelt, Frederic Remington and Owen Wister?(分数:2.00)A.They glorified the frontier life.B.They were constrained by the genteel urban world.C.They spent much time in the West.D.They were famous members of the eastern establishment.(2).Which of the following statements best describes The Virginian?(分数:2.00)A.It is the best Western movie ever made in Hollywood.B.It is a popular novel written by Own Wister and Theodore Roosevelt.C.It gives an accurate depiction of the frontier experience.D.It is one of the most successful books about the West.(3).According to the passage, which of the following statements regarding the myth of the West is NOT true?(分数:2.00)A.In one idealized view, the West was a place one can escape from society and its pressures.B.in one version of the myth, western frontiersman was depicted as a figure deeply immersed in society and its concerto.C.Some writers portrayed the western wilderness as a simple and innocent society.D.The extreme hardship of the frontier life is one powerful theme of the legendary West.(4).The author's primary purpose in writing the passage is______.(分数:2.00)A.to perpetuate the myth about the WestB.to introduce the famous writers and painters of the WestC.to distinguish the myth of the West and the actual realityD.to present the brutalities of Indian warfare(5).What is probably the reason for people to make up a legendary West?(分数:2.00)A.They liked to make up stories.B.They believed what they portrayed were the actual reality.C.They clung to the myth of the West as an uncomplicated, untainted Eden of social simplicity, and moral clarity in an era of unsettling social transformation.D.They wanted to make profit by luring people to the West.The belief that the mind plays an important role in physical illness goes back to the earliest days of medicine. From the time of the ancient Greeks to the beginning of the 20th century, it was generally accepted by both physician and patient that the mind can affect the course of illness, and it seemed natural to apply this concept in medical treatments of disease. After the discovery of antibiotics, a new assumption arose that treatment of infectious or inflammatory disease requires only the elimination of the foreign organism or agent that triggers the illness. In the rush to discover antibiotics and drugs that cure specific infections and diseases, the fact that the body's own responses can influence susceptibility to disease and its course was largely ignored by medical researchers. It is ironic that research into infectious and inflammatory disease firstled 20th-century medicine to reject the idea that the mind influences physical illness, and now research in the same field — including the work of our laboratories and of our collaborators at the National Institutes of Health —is proving the contrary. New molecular and pharmacological tools have made it possible for us to identify the intricate network that exists between the immune system and the brain, a network that allows the two systems to signal each other continuously and rapidly. Chemicals produced by immune cells signal the brain, and the brain in turn sends chemical signals to restrain the immune system. These same chemical signals also affect behavior and the response to stress. Disruption of this communication network in any way, whether inherited or through drugs, toxic substances or surgery, exacerbates the diseases that these systems guard against: infectious, inflammatory, autoimmune, and associated mood disorders. The clinical significance of these findings is likely to prove profound. They hold the promise of extending the range of therapeutic treatments available for various disorders, as drugs previously known to work primarily for nervous system problems are shown to be effective against immune maladies, and vice versa. They also help to substantiate the popularly held impression(still discounted in some medical circles)that our state of mind can influence how well we resist or recover from infectious or inflammatory diseases. The brain's stress response system is activated in threatening situations. The immune system responds automatically to pathogens and foreign molecules. These two response systems are the body's principal means for maintaining an internal steady state called homeostasis. A substantial proportion of human cellular machinery is dedicated to maintaining it. When homeostasis is disturbed or threatened, a repertoire of molecular, cellular and behavioral responses comes into play. These responses attempt to counteract the disturbing forces in order to reestablish a steady state. They can be specific to the foreign invader or a particular stress, or they can be generalized and nonspecific when the threat to homeostasis exceeds a certain threshold. The adaptive response may themselves turn into stressors capable of producing disease. We are just beginning to understand the interdependence of the brain and the immune system, how they help to regulate and counterregulate each other and how they themselves can malfunction and produce disease.(分数:10.00)(1).The passage supplies information to suggest that______.(分数:2.00)A.it has always been the belief of both physician and patient that one's state of mind can affect physical diseaseB.the popular belief that stress exacerbates inflammatory illness has always been discredited by the doctorsC.the discovery of antibiotics sheds light on people's understanding of the mind-body interaction in diseaseD.there is a new understanding of the communication between the brain and immune system(2).Which of the following best states the mind-body interaction in disease?(分数:2.00)A.The brain and immune systems send signals to each other.B.The immune and central nervous systems are organized in very different ways to affect the course of illness.C.Disruption of the communication of the brain and immune system can cure certain disease.D.The immune system and the brain share a lot of hormones to facilitate their communication.(3).Which of the following statements about clinical significance of the new findings can be best supported by the passage?(分数:2.00)A.The responsively to stress is genetically determined.B.The treatment of immune maladies can be consciously controlled.C.Psychoactive drugs may in some cases be used to treat inflammatory diseases.D.Social interactions can lessen psychological stress and alter immune responses.(4).Which of the following statements can be inferred from the passage?(分数:2.00)A.Taking the cure at a mountain sanatorium doesn't work for the treatment for many chronic diseases.B.The relaxing effects of hot-springs spa can help restore the communication between the brain and immune system.C.The disruption of the brain's stress response reduces the body's response.D.Depression is also associated with inflammatory disease.(5).According to the passage, in order to maintain an internal steady state called homeostasis,______.(分数:2.00)A.sometimes the stress response needs to go to the extremeB.the stress response has to bar the foreign pathogens from the bodyC.both the stress and immune responses need to be regulatedD.the immune system promotes physiological and behavioral changes。
考博英语(阅读理解)练习试卷3(题后含答案及解析)
考博英语(阅读理解)练习试卷3(题后含答案及解析) 题型有:1. Reading ComprehensionReading ComprehensionGorillas and chimpanzees possess a rudimentary speech center within their brains that until now was thought to be unique to humans, scientists have found. Brain scans of the apes—man’s closest living relatives—have revealed a small, lopsided(不平衡的) structure buried in the front part of the head which in human is critical for language. The structure, Brodmann’s area 44, is part of the language center known as Broca’s area, and the scans reveal that it is larger and more developed in the left, half of the ape’s brain than in the right hemisphere—just as it is in humans. Claudio Canialupo and William Hopkins, who conducted the study at the Yerkes Primate Research Center at Emory University in Atlanta, Georgia, were surprised thai such a critical feature within the ape’s brain had gone unnoticed. Unlike humans, apes do not have language, and communicate by grunts and hand movements. The scientists believe their brains show that the evolution of language is rooted in a common ape-—human ancestor who lived more than five million years ago. Mr. Cantalupo and Mr. Hopkins say in the journal Nature-. “The part-possession by great apes of a homologue(同族体)of Broca’s area is puzzling, particularly considering the discrepancy between sophisticated human speech and the primitive vocalizations of great apes. Chimpanzees and gorillas nevertheless share one thing in common with human communication—they tend to use their right hands when grunting, which are controlled by the left-side of the brain. “Our findings suggest that the neuro-anatomical substrates(培养基) for left-hemisphere dominance in speech production were evident at least five million years ago and are not unique to hominid (原始人类) evolution,” the scientists say. “Whatever the function of area 44 in great apes, our finding that these species show a human-like asymmetry. . . indicates that the origin of asymmetry in language-related areas of the human brain should be interpreted in evolutionary terms rather than being confined to the human species. “(317 words)1.What does “rudimentary” mean in the first sentence?A.Undeveloped.B.Primitive.C.Radical.D.Aggressive.正确答案:A解析:rudimentary是“未发展的”之意。
考博英语(阅读理解)-试卷80.doc
考博英语(阅读理解)-试卷80(总分:40.00,做题时间:90分钟)一、Reading Comprehensio(总题数:4,分数:40.00)Too much alcohol dulls your senses, but a study in Japan shows that moderate drinkers have a higher IQ than teetotalers. Researchers at the National Institute for Longevity Sciences in Aichi Prefecture, 250 kilometers west of Tokyo, tested the IQs of 2000 people between the ages of 40 and 79. They found that, on average, men who drank moderately — defined as less than 540 milliliters of sake or wine a day — had an IQ that was 3. 3 points higher that men who did not drink at all. Women drinkers scored 2. 5 points higher than female teetotalers. The type of alcohol didn't influence the results. The volunteers tried a variety of tipples, which ranged from beer and whisky to wine and sake. The researchers are quick to point out that the results do not necessarily show that drinking will make you more intelligent. "It's very difficult to show a cause-effect relationship," says senior researcher Hiroshi Shimokata. "We screened subjects for factors such as income and education, but there may be other factors such as lifestyle and nutritional intake. " Shimokata says that people who drink sake, or Japanese rice wine, tend to eat more raw fish. This could be a factor in enhanced intelligence, as fish often contain essential fatty acids that have been linked to brain development. Similarly, wine drinkers eat a lot of cheese, which is not something Japanese people normally consume or buy. Shimokata says the high fat content of cheese is thought to be good for the brain. If alcoholic drinks are directly influencing IQ, Shimokata believes chemicals such as polyphenols could be the critical factor. They are known to have antioxidant properties and other beneficial effects on ageing bodies, such as dilating constricted coronary arteries. The study is part of a wider research project to find out why brain function deteriorates with age.(分数:10.00)(1).The Japanese study was carried out on______.(分数:2.00)A.the development of IQB.the secret of longevityC.the brain food in a glassD.the amount of healthy drinking(2).The Japanese researchers found a higher IQ in______.(分数:2.00)A.female teetotalers than in male onesB.female drinkers than in male onesC.moderate drinkersD.teetotalers(3).When he says that it is very difficult to show cause-effect relationship, Shimokata means that______.(分数:2.00)A.the study failed to involve such variables as income and educationB.he is doubtful of the findings of the investigationC.there are some other contributing factorsD.the results were just misleading(4).From Shimokata's mention of fish and cheese we can infer that in enhancing intelligence______.(分数:2.00)A.sake or wine is a perfect match for fish and cheeseB.they promote the drinking effect of sake or wineC.they are not as effective as sake and wineD.sake or wine is not alone(5).Based on the study, Shimokata would say that______.(分数:2.00)A.intelligence improves with ageB.IQ can be enhanced in one way or anotherC.polyphenols in alcohol may boost the brainD.Alcoholic drinks will make you more intelligentThere is currently abroad a new wave of appreciation for breadth of knowledge. Curricula at universities and colleges and programs in federal agencies extol(赞扬)the virtues of a broad education. For scientists who work in specialized jobs, it is a pleasure to escape in our spare time to read broadly in fields distant from our own. Some of us have made interdisciplinary study in our occupation, which is no surprise, because much of the intellectual action in our society today lies at the interfaces between traditional disciplines. Environmental science is a good example, because it frequently requires us to be conversant in several different sciences and even some unscientific fields. Experiencing this breadth of knowledge is stimulating, but so is delving deeply into a subject. Both are wonderful experiences that are complementary practical and aesthetic(美学的)ways. They are like viewing the marvelous sculpture of knowledge in two different ways. Look at the sculpture from one perspective and you see the piece in its entirety, how its components connect to give it form, balance, and symmetry. From another viewpoint you see its detail, depth, and mass. There is no need to choose between these two perspectives in art. To do so would subtract from the totality of the figure. So it is with science. Sometimes we gaze through a subject and are reluctant to stop for too much detail. As chemists, we are fascinated by computer sciences or molecular genetics, but not enough to become an expert. Or we may be interested in an analytical technique but not enough to stay at its cutting edge. At other times, we become immersed in the detail of a subject and see its beauty in an entirely different way than when we browse. It is as if we penetrate the surface of the sculpture and pass through the crystal structure to the molecular level where the code for the entire structure is revealed. Unfortunately, in our zeal for breadth or depth, we often feel that it is necessary to diminish the value of the other. Specialists are sometimes ridiculed with names such as "nerd" or "technocrats" , generalists are often criticized for being too "soft" or knowing too little about any one thing. Both are ludicrous(可笑的)accusations that deny a part of the reality of environmental science. Let us not be divided by our passion for depth or breadth. The beauty that awaits us on either route is too precious to stifle, too wonderful to diminish by bickering(争吵).(分数:10.00)(1).From a broad education to interdisciplinary study, we can see____.(分数:2.00)A.the integration of theory with practiceB.the enthusiasm for breadth of knowledgeC.the rapid division of traditional disciplinesD.the confrontation between specialists and generalists(2).The commentator would say that the totality of the sculpture of knowledge____.(分数:2.00)A.is mainly composed of two elementsB.presents two different points of viewC.cannot be perceived from one perspectiveD.is a whole made up of complementary elements(3).Just because we become engrossed in the detail of a subject, according to the comment, does not mean that we____.(分数:2.00)A.can have an understanding of itB.will develop into an expertC.will perceive its entiretyD.are interested in it(4).It is commentator's contention that neither specialists nor generalists____.(分数:2.00)A.have zeal for the totality of the knowledge sculptureB.represent the depth and breadth of knowledgeC.are necessarily supposed to belittle the otherD.can be qualified as environmental scientists(5).Which of the following can be the best title for the comment?(分数:2.00)A.Interdisciplinary Study as Our Occupation.B.Breath and Depth of Knowledge.C.The Ways of Doing Science.D.The Beauty of Science.An abandoned airfield near a former Nazi concentration tramp may soon feature pagodas and Tai Chi parks. A $ 700 million project aims to give Germany its own Chinatown 22 miles north of Berlin in the town of Oranienburg, housing 2, 000 residents by 2010. The investor group behind the scheme hopes the new Chinatown will attract tourists and business to rival the famed Chinatowns of San Francisco and New York by delivering an "authentic Chinese experience. " "You'll be able to experience China, go out for a Chinese meal, and buy Chinese goods," says Stefan Kunigam, managing director of Bandenburg-China-Project-Management GmbH. The project has attracted investors in both Germany and China, reports Christoph Lang of Berlin's Trade and Industry promotion Office. "Chinese investors have already asked if we have a Chinatown here. " He says. " The cultural environment is very important for them. You cannot build a synthetic Chinatown. " Germany is home to about 72,000 Chinese migrants(2002 Federal Statistical Office figures), but the country has not had a Chinatown since the early 1930s in Hamburg, when most of the city's 2,000 Chinese residents fled or were arrested by the Nazis. German's more-recent history with anti-foreigner extremism remains a problem even within the government, reports Deutsche Welle(DW), Germany's international broadcaster. DW notes that National Democratic Party lawmaker Holger Apfel's xenophobic(恐外的)comments about "state-subsidized Oriental mega-families" at first went largely uncriticized. "Every fourth German harbors anti-foreigner sentiments," DW quotes Miriam Gruss, a Free Democratic Party parliamentarian. "Right-wing extremism is clearly rooted in the middle of society. It's not a minor phenomenon. " The German government initiated a special youth for Democracy and Tolerance program in January 2007 as part of its tolerance-building efforts. While it is not clear how many Chinese migrants will ultimately settle in the new German Chinatown, developers hope the project will increase Germans' understanding for China and Chinese culture.(分数:10.00)(1).If set up, according to the passage, the new German Chinatown will probably be______.(分数:2.00)A.a rival to the Chinatowns of San Francisco and New YorkB.mainly made of pagodas and Tai Chi parksC.located in the north suburbs of BerlinD.the biggest one in Germany(2).When he says that you cannot build a synthetic Chinatown, Lang means______.(分数:2.00)A.the real imported goods made in ChinaB.the authoritative permission for the projectC.the importance of the location for a ChinatownD.the authentic environment to experience Chinese culture(3).By mentioning the population of Chinese migrants in Germany, the author most probably means that______.(分数:2.00)A.it is too late to build a ChinatownB.it is their desire to save a ChinatownC.it is important to create jobs for themD.it is necessary to have a Chinatown there(4).According to the passage, German anti-foreigner extremism______.(分数:2.00)A.can seed the new community with hatredB.could be an obstacle to the projectC.will absolutely kill the planD.is growing for the scheme(5).The message from the plan is clear: ______.(分数:2.00)A.to build a new communityB.to fight against right-wing extremismC.to promote more cultural understandingD.to increase Chinese's understanding of GermanyWhatever happened to the death of newspaper? A year ago the end seemed near. The recession threatened to remove the advertising and readers that had not already fled to the Internet. Newspapers like the San Francisco Chronicle were chronicling their own doom. America's Federal Trade commission launched a round of talks about how to save newspapers. Should they become charitable corporations? Should the state subsidize them ? It will hold another meeting soon. But the discussions now seem out of date. In much of the world there is the sign of crisis. German and Brazilian papers have shrugged off the recession. Even American newspapers, which inhabit the most troubled come of the global industry, have not only survived but often returned to profit. Not the 20% profit margins that were routine a few years ago, but profit all the same. It has not been much fun. Many papers stayed afloat by pushing journalists overboard. The American Society of News Editors reckons that 13, 500 newsroom jobs have gone since 2007. Readers are paying more for slimmer products. Some papers even had the nerve to refuse delivery to distant suburbs. Yet these desperate measures have proved the right ones and, sadly for many journalists, they can be pushed further. Newspapers are becoming more balanced businesses, with a healthier mix of revenues from readers and advertisers. American papers have long been highly unusual in their reliance on ads. Fully 87% of their revenues came from advertising in 2008, according to the Organization for Economic Cooperation & Development(OECD). In Japan the proportion is 35%. Not surprisingly, Japanese newspapers are much more stable. The whirlwind that swept through newsrooms harmed everybody, but much of the damage has been concentrated in areas where newspaper are least distinctive. Car and film reviewers have gone. So have science and general business reporters. Foreign bureaus have been savagely cut off. Newspapers are less complete as a result. But completeness is no longer a virtue in the newspaper business.(分数:10.00)(1).By saying "Newspapers like ... their own doom"(Para. 1), the author indicates that newspaper______.(分数:2.00)A.neglected the sign of crisisB.failed to get state subsidiesC.were not charitable corporationsD.were in a desperate situation(2).Some newspapers refused delivery to distant suburbs probably because______.(分数:2.00)A.readers threatened to pay lessB.newspapers wanted to reduce costsC.journalists reported little about these areasD.subscribers complained about slimmer products(3).Compared with their American counterparts, Japanese newspapers are much more stable because they______.(分数:2.00)A.have more sources of revenueB.have more balanced newsroomsC.are less dependent on advertisingD.Readers have lost their interest in car and film reviews(4).What can be inferred from the last paragraph about the current newspaper business?(分数:2.00)A.Distinctiveness is an essential feature of newspapers.pleteness is to blame for the failure of newspaper.C.Foreign bureaus play a crucial role in the newspaper business.D.Readers have lost their interest in car and film reviews.(5).The most appropriate title for this text would be______.(分数:2.00)A.American Newspapers: Struggling for SurvivalB.American Newspapers: Gone with the WindC.American Newspapers: A Thriving BusinessD.American Newspapers: A Hopeless Story。
考博英语(阅读理解)练习试卷11(题后含答案及解析)
考博英语(阅读理解)练习试卷11(题后含答案及解析) 题型有:1. Reading ComprehensionReading ComprehensionTen thousand years ago, man entered the New Stone Age and the earth became warmer. This allowed man to leave the mountain areas for the plains. To adapt to the new environment, humans chose to settle areas near water. They began to build their own houses and invented pottery. Also in this period, primitive agriculture appeared, making it possible for people to live in permanent settlements. The spreading of such techniques as grinding and hole-drilling enabled humans to make more regular and fixed stone tools so as to meet different needs. Research by Chinese archaeologists has found that remains of the New Stone Age mostly lie along the coastal areas of Eastern China. As far as food structure is concerned, the people in the south grew rice while the northern people grew corn. The fact that the Chinese people began to grow paddy 9 000 years ago indicates that rice was first grown in China, not in India. Our ancestors 8 000 years ago were able to make objects from jade, use the skills of spinning and weaving, blow melodies in seven musical scales, and carve signs in stone and wood. The canoe and oar, unearthed from 7 000-year old remains, show that there were water transportation tools at that time. Also during this time, people began to domesticate cattle. The Yangshao people (named after Yangshao, Henan Province, where remains were first found in 1921), who lived 6 000 years ago, created a splendid painted pottery culture and began to build small fortresses using rammed earth skills. Five thousand years ago, people began to raise silkworms and knit goods with mulberry silk. Also they learned smelting copper to make small tools like bronze knives. Four thousand years ago people began to use written characters. In the Yangtze and the Yellow River valleys, a group of old cities appeared. Legends recorded in ancient documents, like those of the Shennong Family growing crops, the wife of the Yellow Emperor inventing silk, ministers of the Yellow Emperor inventing characters, the boat and the cart, and the Yellow Emperor fighting against the southern tribes, show that they are not just myths because they contain some traces of history. These discoveries reveal the long history of China. (368 words)1.Which period in Chinese history does this passage discuss?A.Prehistory.B.The Xia Dynasty.C.The Shang Dynasty.D.The Three Kingdoms.正确答案:A解析:有确切史料记载之前的历史,我们称之为“史前”。
考博英语(阅读理解)练习试卷12(题后含答案及解析)
考博英语(阅读理解)练习试卷12(题后含答案及解析) 题型有:1. Reading ComprehensionReading ComprehensionDuring the last thirty years, the international economy has experienced a basic change. Improvements in the Internet and other communications have had important effects on world markets. Faster methods of transport from one place to another have made the world seem smaller to the businessmen. As a result, the world no longer consists of a number of separate economies under the control of different nations. Instead, the nations have been integrated into a single economy, and the integration is becoming more and more complete every year. For the first time in history, we can truly speak of a global economy. The most dramatic example of this integration was the oil crisis of 1973 and 1974. It came as a great surprise to the public in the industrial nations to discover that they depended so heavily on imported oil. However, the best evidence for the growing integration is the rapid expansion in the volume of world trade. It went up by about 7 percent a year during the decade from 1990 to 2000, and in several quasi-industrial countries the growth was even more rapid. As a result, some imported products have become as common as domestic commodity. Some of them are too common for the public to any more realize they are foreign. Production has also become international, which is manifested by the large corporations stepping across national borders and established branches and subsidiaries in several different countries. As an example, U. S. companies are building automobiles in Canada, Germany, Britain and Japan. In some cases, components of an automobile are produced abroad and shipped to the United States, where it is then finished with the imported parts. When even the United States has the largest number of such corporations, it is not the only. Other multinationals, for instance, are based in Japan, France, Germany, the UK and Italy. Labor, too, is much more mobile than in the past. Both skilled and unskilled workers can now readily migrate from one country to another. In Europe, for example, there arc large numbers of Turkish workers employed in the German economy. Doctors, lawyers, and other professionals are also finding it easier to work in foreign countries. The labor market has become international, and the number of expatriate workers is continuing to grow. (379 words)1.What is the passage mainly about?A.The dependence of industrial countries on imported oil.B.The fundamental change in the world economy.C.The expansion of multinationals.D.The Internet and the world economy.解析:文章第一段第一句就点出了主题。
考博英语(阅读理解)练习试卷7(题后含答案及解析)
考博英语(阅读理解)练习试卷7(题后含答案及解析) 题型有:1. Reading ComprehensionReading ComprehensionWould you like to know if your body is older or younger than it should be? Dr David Wikenheiser has been studying ageing in Vancouver, Canada, for the past 10 years and has found the average person is 15 or more years older biologically than chronologically. He says: “We all know people who are 30 but look over 40, and others who are 70 yet look 50. The difference comes down to lifestyle. Some people’s bodies get rusty faster than others, and this makes them age more quickly. “Virtually every ageing process is related to the oxidative compounds or free radicals produced by our body as a reaction to pollution, ultraviolet light, stress, smoking, alcohol and pesticides. But these can be neutralised by antioxidants. After conducting more than 3 000 tests, Dr. Wikenheiser believes that, on average, you can lower your biological age by 10 years in three months with the right lifestyle changes. “You can’t alter your genetics but you can make other changes, such as eating the right food, drinking enough water to flush out toxins, exercising and managing stress,”he says. But exercising too much is just as bad as not doing enough. Walking out for more than two hours at a time every day puts too great a strain on your heart. “Multivitamin and antioxidant supplements are important even if you’re eating the right amount of fruit and vegetables. Today’s soil tends to lack essential minerals so these are no longer found in the food we eat, in large enough quantities. We should also swap (交换)bleached white table salt for natural sea salt which is much better for us. “It’s also important to eat three meals a day. Missed meals put a strain on your brain as your blood sugar level drops. Many of us are also eating the wrong fats or avoiding fat altogether, so we miss out on important nutritional oils. “You should also ask your dentist what kind of fillings you have. Amalgam fillings in your teeth are not stable and will contribute to toxic metal levels in your body.” says Dr. Wikenheiser. (351 words)1.From the first paragraph, we can see______.A.Wikenheiser is an American scientistB.Wikenheiser is a doctorC.a lot of us look older than our actual ageD.we don’t know we are 15 years older than others正确答案:C解析:第一段里有…has found the average person is 15 or more years older biologically than chronologically。
考博英语(阅读理解)-试卷78.doc
考博英语(阅读理解)-试卷78(总分:40.00,做题时间:90分钟)一、Reading Comprehensio(总题数:4,分数:40.00)In a society where all aspects of our lives are dictated by scientific advances in technology, science is the essence of our existence. Without the vast advances made by chemists, physicists, biologists, geologists and other diligent scientists, our standards of living would decline, our flourishing wealthy nation might come to an economic depression, and our people would suffer from diseases that could not be cured. As a society we ignorantly take advantage of the amenities provided by science, yet our lives would be altered interminably without them. Health care, one of the aspects of our society that separates us from our archaic ancestors, is founded exclusively on scientific discoveries and advances. Without the vaccines created by doctors, diseases such as polio, measles, hepatitis, and the flu would pose a threat to our citizens, for although some of these diseases may not be deadly, their side effects can be a vast detriment to an individual affected with the disease. In addition, science has developed perhaps the most awe-inspiring vital invention in the history of the world, the computer. Without the presence of this machine our world could exist, but the conveniences brought into life by the computer are unparalleled. Despite the greatness of present-day innovators and scientists and their revelations, it is requisite to examine the amenities of science that our culture so blatantly disregards. For instance, the light bulb, electricity, the telephone, running water, and the automobile are present-day staples of our society, however, they were not present until scientists discovered them. Because of the contribution of scientists, our world is ever metamorphosing, and this metamorphosis economically and personally comprises our society, whether our society is cognizant of this or not.(分数:10.00)(1).In the first paragraph the author implies that we______.(分数:2.00)A.would not survive without scienceB.take the amenities of science for grantedC.could have raised the standards of living with scienceD.would be free of disease because of scientific with advances(2).The author uses health care and vaccines to illustrate______.(分数:2.00)A.how science has been developedB.what science means to societyC.what the nature of science isD.how disease affects society(3).Nothing, according to the author, can match the invention of the computer in terms of______.(分数:2.00)A.powerB.noveltyC.benefitsplexity(4).The author seems to be unhappy about______.(分数:2.00)A.people's ignorance of their cultureB.people's ignoring the amenities of scienceC.people's making no contributions to societyD.people's misunderstanding of scientific advance(5).The author's tone in the passage is______.(分数:2.00)A.criticalB.cognizantC.appreciativeD.paradoxicalDrinking wastewater? The idea may sound distasteful, but new federally funded research says more Americans are doing so —whether they know or not —and this reuse will be increasingly necessary as the U. S. population expands. Treated wastewater poses no greater health risks than existing water supplies and, in some cases, may be even safer to drink, according to a report released by the National Research Council, " We believe water reuse is an option to deal with growing water scarcity, especially in coastal areas," says Jorg Drowes, an engineering professor at the Colorado School of Mines. "This can be done reliably without putting the public at risk," he says, citing technological advances. He says it's a waste not to reuse the nation's wastewater, because almost all of it is treated before discharge. This water includes storm runoff(径流)as well as used water from homes, businesses and factories. In many places, the report says, the public does not realize it's drinking water that was treated after being discharged as wastewater somewhere upstream. For example, wastewater discharged into the Trinity River from Dallas/Fort Worth flows south into Lake Livingston, the source for Houston's drinking water. Despite the growing importance of this reuse, the report says there's been no systemic analysis of its extent nationwide since a 1980 study by the U. S. Environmental Protection Agency(EPA). Alan Roberson of the American Water Works Association says wastewater reuse is common, so the council's report is important but not surprising. Roberson expects this recycling will continue to increase, especially for irrigation and industrial needs. He says it will take longer to establish potable(适于饮用的)uses because of public nervousness about drinking wastewater, however treated. "We have to do something to address water scarcity," says Olga Naidenko, a senior scientist at the non-profit Environmental Working Group. " Less than 10% of potable water is used for drinking, cooking, showering or dishwashing. We flush it down the toilet, literally. " Technologies exist to safely treat the water, she says, although some are expensive. The report says water reuse projects tend to cost more than most water conservation options but less than seawater desalination(脱盐)and other supply alternatives. It calls on the EPA to develop rules that set safe national standards.(分数:10.00)(1).Which of the following statements would Jorg Drewes agree to?(分数:2.00)A.Water reuse may eventually put the public at risk.B.Water reuse is preferable to wasting water.C.Water reuse is far from a solution to water shortage.D.Water reuse is possible only after greater tech advances.(2).Lake Livingston is mentioned to show that the public______.(分数:2.00)A.Accepts the fact of drinking wastewater calmlyB.Is concerned about the safety of the drinking waterC.Does not believe that wastewater is safe to drinkD.Is not aware of the nature of their drinking water(3).According to Alan Roberson, ______.(分数:2.00)A.It is not safe to drink wastewaterB.The report has surprised the publicC.the report helps build up public confidenceD.The public has yet to accept drinking wastewater(4).Olga Naidenko's remarks emphasize______.(分数:2.00)A.The recent progressB.The existing problemsC.The new perspectiveD.The potential risks(5).What does the report suggest to the EPA?(分数:2.00)A.Weighing different water conservation options.B.Exploring new technologies to treat wastewater.C.Setting up national standards for water reuse.D.Monitoring water supplies at a national level.Rain is not what it used to be. A new study reveals that much of the precipitation in Europe contains such high levels of dissolved pesticides that it could be illegal to supply it as drinking water. Studies in Switzerland have found that rain is laced with toxic levels of atrazine, alachlor and other commonly used crop sprays. "Drinking water standards are regularly exceeded in rain," says Stephan Muller, a chemist at the Swiss Federal Institute for Environmental Science and Technology in Dubendorf. The chemicals appear to have evaporated from fields and become part of the clouds. Both the European Union and Switzerland have set a limit of 100 nanograms for any particular pesticide in a liter of drinking water. But, especially in the first minutes of a heavy storm, rain can contain much more than that. In a study to be published by Muller and his colleague Thomas Bucheli in Analytical Chemistry this summer, one sample of rainwater contained almost 4000 nanograms per liter of 2, 4-dinitrophenol, a widely used pesticide. Previously, the authors had shown that in rain samples taken from 41 storms, nine contained more than 100 nanograms of atrazine per liter, one of them around 900 nanograms. In the latest study, the highest concentrations of pesticides turned up in the first rain after a long dry spell, particularly when local fields had recently been sprayed. Until now, scientists had assumed that the pesticides only infiltrated groundwater directly from fields. Muller warns that the growing practice of using rainwater that falls onto roofs to recharge under — ground water may be adding to the danger. This water often contains dissolved herbicides that had been added to roofing materials, such as bitumen sheets, to prevent vegetation growing. He suggests that the first flush of rain should be diverted into sewers to minimize the pollution of drinking water, which is not usually treated to remove these herbicides and pesticides.(分数:10.00)(1).According to the Swedish scientists, the pesticides in rain______.(分数:2.00)A.exceed those in crop spraysB.can be traced back to crop spraysC.are not as toxic as they used to beD.are nothing but atrazine and alachlor(2).Muller and Bucheli found that 2, 4-dinitrophenol______.(分数:2.00)A.is widely used in agricultureB.exceeded atrazine in the rain samplesC.can be measured in the units of nanogramsD.was far in excess of limit in drinking water(3).Scientists used to hypothesize that______.(分数:2.00)A.groundwater was safe for drinking waterB.herbicides and pesticides were harmlessC.pesticides contaminated groundwater exclusivelyD.rain would minimize the pollution of drinking water(4).Muller warns us not ____ .(分数:2.00)A.to tap groundwater for drinking waterB.to use such roofing materials as bitumen sheetsC.to let the first flush of rain recharge underground waterD.to divert the first flush of rain into sewers without removing its herbicides and pesticides(5).Which of the following can be the best title for the passage?(分数:2.00)A.Drinking WaterB.Rainwater and Underground WaterC.Agriculture and PesticidesD.Falling PesticidesAlthough speech and writing are the special means of communicating of humans, the interchange also takes place in many other ways. A person may relay his or her feelings, thoughts, and reactions through body positioning, body contact, body odors, eye contact, responsive actions, habits, attitudes, interests, state of health, dress and grooming, choice of life-style, and use of talents — in fact, through everything the individual says or does. In turn, every person is constantly receiving multitudes of external and internal messages through his or her five senses and personal biorhythm system. An individual screens, selects, regulates, and controls specific aspects of this information through a process of mental choices. Some of these choices are automatic; some are subconscious because of habit, block, or lack of development; and some are made by a conscious process. The degree to which a person is able to communicate depends upon the extent of his or her conscious awareness, priority of need, and control of this process. The person with a behavior disorder is shut off from the communicative flow that normally exists among humans. His or her mind is confused, and he or she may feel unable to express personal thoughts, needs, and emotions, and unable to make himself or herself understood. Sometimes the person may feel that he or she is communicating clearly but that others cannot or will not understand. Because the person is thus isolated in internal problems, he or she is interested only in these problems and cannot focus attention on the messages of others. The person often projects fears and fantasies onto others, so that no matter what the real content is of the messages that others relay, the messages received are threatening ones. The causes of such communicative shutoffs are blocks in the neural pathways of the person's processing of information. Sometimes a block is physical, as in deafness, mental retardation, brain tumor, or hardening of the cerebral arteries. However, the most common causes of blocks are injuries to a person's emotional system. Emotional blocks occur to some degree in all human beings. They usually occur in childhood before good communicative skills are learned, and they are connected to individual symbolism. Unless such a block is removed shortly after happening, it can have profound and complicating effects that will distort emotional and mental growth and arrest the development potential of the individual. Even though a child with blocks will appear to grow and to seem mature in some ways, he or she will show the evidence of emotional blocking in efforts to communicate.(分数:10.00)(1).The concluding phrase of the first paragraph implies that human communication______.(分数:2.00)A.is characterized by two features, form and meaningB.is mainly conducted through speech and writingC.is of two functions, stimulation and responseD.takes two forms, verbal and nonverbal(2).In the second paragraph the author is mainly concerned with______.(分数:2.00)municative abilityB.external and internal messagesrmation and mental processingD.conscious and subconscious awareness(3).Shut off from the communicative flow, the person with a behavior disorder______.(分数:2.00)A.is unable to focus attention on internal problemsB.is isolated in internal problemsC.relays threatening messagesD.all of the above(4).Which of the following is universal according to the passage?(分数:2.00)A.Neural blocks.B.Physical blocks.C.Cerebral blocks.D.Emotional blocks.(5).The passage ends with______.(分数:2.00)A.the contributing factors to emotional and mental disorderB.the importance of acquiring good communicative skillsC.the significance of eliminating early emotional blocksD.the warning of emotional blocks common in childhood。
考博英语(阅读理解)-试卷79.doc
考博英语(阅读理解)-试卷79(总分:40.00,做题时间:90分钟)一、Reading Comprehensio(总题数:4,分数:40.00)Eating is related to emotional as well as physiologic needs. Sucking, which is the infant's means of gaining both food and emotional security, conditions the association of eating with well-being or with deprivation. If the child is breast-fed and has supportive body contact as well as good milk intake, if the child is allowed to suck for as long as he or she desires, and if both the child and mother enjoy the nursing experience and share their enjoyment, the child is more likely to thrive both physically and emotionally. On the other hand, if the mother is nervous and resents the child or cuts him or her off from the milk supply before either the child's hunger or sucking need is satisfied, or handles the child hostilely during the feeding, or props the baby with a bottle rather than holding the child, the child may develop physically but will begin to show signs of emotional disturbance at an early age. If, in addition, the infant is further abused by parental indifference or intolerance, he or she will carry scars of such emotional deprivation throughout life. Eating habits are also conditioned by family and other psychosocial environments. If an individual's family eats large quantities of food, then he or she is inclined to eat large amounts. If an individual's family eats mainly vegetables, then he or she will be inclined to like vegetables. If mealtime is a happy and significant event, then the person will tend to think of eating in those terms. And if a family eats quickly, without caring what is being eaten and while fighting at the dinner table, then the person will most likely adopt the same eating pattern and be adversely affected by it. This conditioning to food can remain unchanged through a lifetime unless the individual is awakened to the fact of conditioning and to the possible need for altering his or her eating patterns in order to improve nutritional intake. Conditioning spills over into and is often reinforced by religious beliefs and other customs so that, for example, a Jew, whose religion forbids the eating of pork, might have guilt feelings if he or she ate pork. An older Roman Catholic might be conditioned to feel guilty if he or she eats meat on Friday, traditionallya fish day.(分数:10.00)(1).A well-breast-fed child______.(分数:2.00)A.tends to associate foods with emotionsB.is physiologically and emotionally satisfiedC.cannot have physiologic and emotional problemsD.is more likely to have his or her needs satisfied in the future(2).While sucking, the baby is actually______.(分数:2.00)A.conscious of the impact of breast-feedingB.interacting with his or her motherC.creating a nursing environmentD.impossible to be abused(3).A bottle-fed child______.(分数:2.00)A.can be healthy physiologically, but not emotionallyB.cannot avoid physiologic abuse throughout lifeC.is deprived of emotional needsD.is rid of physiological needs(4).From the list of eating habits, we learn that______.(分数:2.00)A.everyone follows his or her eating pattern to deathB.one's eating pattern varies with his or her personalityC.there is no such things as psychosocial environmentsD.everybody is born into a conditioned eating environment(5).A Jew or an older Roman Catholic______.(分数:2.00)A.takes a eating habit as a religious beliefB.is conditioned to feel guilty of eating pork in his or her familyC.cannot have a nutritional eating habit conditioned by religious beliefsD.observes a eating pattern conditioned by his or her psychosocial environmentThe popular idea that classical music can improve your maths is falling from favor. New experiments have failed to support the widely publicized finding that Mozart's music promotes mathematical thinking. Researchers reported six years ago that listening to Mozart brings about short-term improvements in spatial-temporal reasoning, the type of thinking used in maths. Gordon Shaw of the University of California at Irvine and Frances Rauscher of the University of Wisconsin in Oshkosh had asked students to perform spatial tasks such as imagining how a piece of paper would look if it were folded and cut in a certain pattern. Some of the students then listened to a Mozart sonata and took the test again. The performance of the Mozart group improved. Shaw found. He reasoned that listening to Mozart increases the number of connections between neurons. But Kenneth Steele of Appalachian State University in North Carolina learnt that other studies failed to find this effect. He decided to repeat one of Shaw's experiments to see for himself. Steele divided 125 students into three groups and tested their abilities to work out how paper would look if cut and folded. One group listened to Mozart another listened to a piece by Philip Glass and the third did not listen to anything. Then the students took the test again. No group showed any statistically significant improvement in their abilities. Steele concludes that the Mozart effect doesn't exist. "It's about as unproven and as unsupported as you can get," he says. Shaw however defends his study. One reason he gives is that people who perform poorly in the initial test get the greatest boost from Mozart but Steele didn't separate his students into groups based on ability. "We're still at the stage where it needs to be examined," Shaw says. "I suspect that the more we understand the neurobiology, the more we'll be able to design tests that give a robust effect. "(分数:10.00)(1).It has been recently found out that______.(分数:2.00)A.Mozart had an aptitude of music because of his mathematical thinkingB.classical music cannot be expected to improve one's mathC.the effects of music on health are widely recognizedD.music favors one's mathematical thinking(2).Which of the following pairs, according to the widely publicized finding, is connected?(分数:2.00)A.Paper cutting and spatial thinking.B.The nature of a task and the type of thinking.C.Classical music and mathematical performance.D.Mathematical thinking and spatial-temporal reasoning.(3).In Shaw's test, the students would most probably______.(分数:2.00)A.draw the image of the cut paperB.improve their mathematical thinkingC.have the idea about classical music confirmedD.increase the number of neurons in their brains(4).From Steele's experiment we can say that______.(分数:2.00)A.his hypothesis did not get proven and supportedB.it was much more complicated than Shaw'sC.the results were statistically significantD.Shaw's results were not repeatable(5).Shaw is critical of______.(分数:2.00)A.Steele's results presented at a wrong stageB.Steele's wrong selection of the testeesC.Steele's ignorance of neurobiologyD.Steel's test designFourteen-year-old Sean MeCallum lay in a hospital bed waiting for a new heart. Without it, Sean would die. Sean's case is not unusual. Everyday many people die because there just aren't enough human organs to go around. Now scientists say they can alter the genetic make-up of certain animals so that their organs may be acceptable to humans. With this gene-altering technique to overcome our immune rejection to foreign organs, scientists hope to use pig hearts for transplants by the year 2008. That prospect, however, has stirred up strong opposition among animal right activists. They protest that the whole idea of using animal is cruel and unjust. Some scientists also fear such transplants may transmit unknown diseases to humans. Others believe transplanting animal organs into humans is unnecessary. Millions of dollars spent on breeding pigs for their organs could be better spent on health education programs. They believe seventy-five percent of the heart disease cases that had lead to a need for organ transplant are preventable. The key is to convince people to eat healthfully, and not to smoke or drink alcohol. Scientists could also use research funds to improve artificial organs. Still others believe that though new inventions and prevention programs may help, spending money to encourage more people to donate their organs is an even better idea. If enough people were educated about organ donations, everyone who needed an organ could be taken off the waiting list in a year.(分数:10.00)(1).What is the problem the passage begins with?(分数:2.00)A.A high mortality rate of immune rejection.B.A malpractice in heart transplantation.C.An unusual case of organ transplant.D.A shortage of human organs.(2).Not only is the gene-altering technique a technical issue, according to the passage, but also it______.(分数:2.00)A.introduces an issue of inhumanityB.raises the issue of justice in medicineC.presents a significant threat to the human natureD.pushes the practice of organ transplant to the limits(3).Doubtful of the necessity of using animal organs, some scientists______.(分数:2.00)A.are to narrow the scope of organ transplantsB.switch to the development of artificial organse up with alternatives to the current problemD.set out to purchase better ways of treating heart disease(4).It can be inferred from the concluding paragraph of the passage that______.(分数:2.00)A.the gene-altering technique will help those waiting for organ transplantsB.the present supply of human organs still has potential to be exploredC.people prefer the use of animal organs for medical purposesD.the gene-altering technique leaves much to be desired(5).The information the passage carries is______.(分数:2.00)A.enlighteningB.unbelievableC.imaginativeD.factualHere is a great irony of 21st century global health: while many hundreds of millions of people lack adequate food as a result of economic inequities, political corruption, or warfare, many hundreds of millions more are overweight to the point of increased risk of diet-related chronic diseases. Obesity is a worldwide phenomenon, affecting children as well as adults and forcingall but the poorest countries to divert scarce resources away from food security to take care of people with preventable heart disease and diabetes. To reverse the obesity epidemic, we must address the fundamental cause. Overweight comes from consuming more food energy than is expended in activity. The cause of this imbalance also is ironically improved prosperity. People use extra income to eat more and be less physically active. Market economies encourage this. They turn people with expendable income into consumers of aggressively marketed foods that are high in energy but low in nutritional value, and of cars, television sets, and computers that promote sedentary behavior. Gaining weight is good business. Food is particularly big business because everyone eats. Moreover, food is so overproduced that many countries especially the rich ones, have far more than they need —another irony. In the United States, to take an extreme example, most adults — of all ages, incomes, educational levels, and census categories — are overweight. The U. S. food supply provides 3800 kilocalories per person per day, nearly twice as much as required by many adults. Overabundant food forces companies to compete for sales through advertising, health claims, new products, larger portions, and campaigns directed towards children. Food marketing promotes weight gain. Indeed, it is difficult to think of any major industry that might benefit if people eat less food; certainly not the agriculture, food product, grocery, restaurant, diet, or drug industries. All flourish when people eat more, and all employ armies of lobbyists to discourage governments from doing anything to inhibit overeating.(分数:10.00)(1).The great irony of 21st century global public health refers to______.(分数:2.00)A.the cause of obesity and its counteractive measuresB.the insufficient and superfluous consumption of foodC.the scarce natural resource and the negligence of food security.D.the consumption of food and the increased risk of diet-related diseases(2).To address the fundamental cause of the obesity epidemic, according to the passage, is______.(分数:2.00)A.to improve political and economic managementB.to cope with the energy imbalance issueC.to combat diet-related chronic diseasesD.to increase investment in global health(3).As we can learn from the passage, the second irony refers to______.(分数:2.00)A.affluence and obesityB.food energy and nutritional valueC.food business and economic prosperityD.diseases of civilization and pathology of inactivity(4).As a result of the third irony, people______.(分数:2.00)A.consume 3800 kilocalories on a daily basisplain about food overproductionC.have to raise their food expensesD.are driven towards weight gain(5).Which of the following can be excluded as we can understand based on the passage?(分数:2.00)A.The economic dimension.B.The political dimension.C.The humane dimension.D.The dietary dimension.。
考博英语模拟试题及答案
考博英语模拟试题及答案一、阅读理解(共20分,每题4分)1. 根据文章内容,以下哪项是作者的主要观点?A. 教育是社会进步的关键。
B. 技术发展对教育的影响是负面的。
C. 教育改革需要更多的创新思维。
D. 教育应该更加注重实践能力的培养。
答案:A2. 文章中提到的“终身学习”的概念,主要强调了什么?A. 学习是个人发展的终身任务。
B. 学习应该在学校之外进行。
C. 学习是职业发展的必要条件。
D. 学习是社会进步的驱动力。
答案:A3. 作者认为教育改革应该包括哪些方面?A. 教学方法和课程内容的更新。
B. 学校管理体制的改革。
C. 教师培训和学生评价体系的改进。
D. 所有上述选项。
答案:D4. 文章中提到的“批判性思维”在教育中的作用是什么?A. 帮助学生更好地理解知识。
B. 培养学生的独立思考能力。
C. 提高学生解决问题的能力。
D. 促进学生对知识的深入探究。
答案:B5. 根据文章,以下哪项不是教育改革的挑战?A. 资金不足。
B. 教师资源的缺乏。
C. 学生对新教学方法的抵触。
D. 社会对教育改革的误解。
答案:C二、完形填空(共15分,每题1.5分)阅读下面的短文,从短文后各题所给的选项中,选出可以填入空白处的最佳选项。
In recent years, the popularity of online education has been growing rapidly. It offers a convenient way for students to learn __6__ the comfort of their own homes. However, there are also some __7__ to consider.6. A. in B. at C. on D. from答案:A7. A. benefits B. drawbacks C. opportunities D. challenges答案:D8. The main advantage of online education is that it allows for __8__ flexibility in scheduling.A. personalB. individualC. uniqueD. specific答案:B9. Despite the convenience, some students may find it difficult to __9__ in an online environment.A. interactB. participateC. engageD. connect答案:B10. Online courses often require a high level of __10__ and self-discipline.A. motivationB. inspirationC. encouragementD. stimulation答案:A三、翻译(共15分,每题5分)1. 教育不仅仅是知识的传授,更是价值观和道德观的培养。
[外语类试卷]考博英语(阅读理解)练习试卷1.doc
[外语类试卷]考博英语(阅读理解)练习试卷1一、Reading Comprehension0 The bear is a classic and enduring American symbol for the benevolent wild. We tend to think well of bears, viewing them as large, powerful, stubborn creatures capable of mischief but somehow vaguely humorous and, like defensive tackles, essentially good-hearted. However, when it comes to direct dealings with bears, our behavior has not been especially benign. For better than three centuries we have been hunting them, trapping them, setting dogs on them, clearing and <u>leveling</u> their natural habitat.With the notable exception of grizzlies, bears have held up under this harassment better than many less conspicuous, more mobile creatures. Although there are fewer bears in the US than there were when Europeans first came to the continent, they still remain reasonably numerous. Bears now exist in population pockets scattered throughout most of their former range, which was just about all of the wooded parts of the country.Bears have suffered from what is called civilization, but they are outstanding exceptions to the generally held (but only sometimes true) notion that people and wild beasts are incompatible. Take the most abundant US species, the black bear for example. There is little evidence that black bears shy away from civilized areas or that, like good Sierra Clubbers, they find them psychologically, morally and esthetically repugnant. To the contrary, given any encouragement or even tolerance, black bears tend to make a beeline for settlements and prosper there until they are scragged or shooed away by frightened residents. Where this scragging and shooing process has been suspended, as in the Great Smoky Mountains National Park, black bears have lumbered in from all over the woods to live cheek by jowl, snout by Winnebago, with people. (279 words)1 What trend has occurred in the bear population since Europeans first came toAmerica? (A)The population has become smaller.(B)The population has become larger.(C)There are fewer species than ever before.(D)They have died out.2 In the writer's eyes, bears are animals that(A)cause a lot of troubles to human beings(B)pose a great threat to our life(C)may move from one place to another frequently(D)can bear up under great strain3 If they are harassed, black bears will(A)stay in there, motionless(B)leave that place for the time being(C)be frightened to death(D)prefer to live away all their lives4 The message the writer wants to pass on to the readers is that (A)wild animals are our friends(B)wild animals can he dangerous(C)bears are very useful animals(D)bears will be extinct very soon5 "Leveling" (Line 6, Para. 1) is______.(A)raising(B)lowering(C)destroying(D)cleaning5 During the second half of the nineteenth century, in the United States, both the stimulus to produce landscape art and the subject of landscape altered appreciably as the pressure of events surrounding the Civil War witnessed the emergence of a new national consciousness. It was a time when certain fundamental religious beliefs were<u>assaulted</u> by new scientific theory and when new critical writing, particularly those of John Ruskin, exercised an important influence on art. The landscape painting from the Ganz collection provide an opportunity to examine the shifts in taste and the pluralities of style that characterized American landscape painting, especially in the latter part of the century.In the early years of the nineteenth century American landscape was closely associated with the republican ideals of the new nation and took on significance in the popular imagination as a form of national propaganda. Landscape painting was conceived of as a vehicle for the presentation of the new republic's unique historical and moral position in world history. This position was supported by Thomas Cole, the dean of the Hudson River School, and was based on a religious interpretation of wilderness themes. While the American concern for the founding of a school of historical landscape was most assertive in the first half of the century and was confirmed in such grandly ambitious paintings as Cafe's famous instructive moral one portraying the COURSE OF EMPIRE, the interest in creating a national art based on American nature continued to influence the formal evolution of landscape painting. (252 words)6 With what topic is the passage primarily concerned?(A)The moral position of the Unite States in world history.(B)John Ruskin's influence on the nineteenth century art.(C)A religious interpretation of wilderness themes.(D)The evolution of landscape painting in the United States.7 What phenomenon does the author mention as occurring at the time of the CivilWar? (A)The revival of fundamental religious beliefs.(B)An increased interest in national geography.(C)A period of depression on arts and sciences.(D)The emergence of a new national consciousness.8 According to the author, why is the Ganz collection significant?(A)Because it reflects changes in American landscape painting.(B)Because it includes many critical writings of the era.(C)Because it appeals to the popular imagination of republicans.(D)Because it documents the painting of the Hudson River School.9 According to the author, landscape painting early in the nineteenth century was used to______.(A)finance a school of historical landscape painting(B)further the ambitions of young politicians(C)represent and reaffirm a new nation(D)realistically portray the physical beauty10 What does the word "assaulted" (Line 4, Para. 1) mean?(A)Attacked.(B)Praised.(C)Scolded.(D)Satirized.10 Baron Hans Heinrich Thyssen Bomemizsa has the finest private art collection in the world. He does not want it to be divided up among his heirs after his death. So a Thyssen Foundation will be formed to which he will <u>bequeath</u> all his paintings. He has been deluged with offers to house them. So far the Spanish have been winning. InApril a preliminary agreement was signed under which the $ 1 billion collection will be housed on a ten-year lease in rent-free museum, the Villharmosa Palace, in Madrid. At the end of the ten years, the baron will decide whether to give Spain the collection.The British government has now decided, late in the day, that it would not mind having the collection in Britain. The success of the recent exhibition of old-master paintings from the Thyssen collection at the Royal Academy prompted both the Prime Minister and the Prince of Wales to approach the baron and propose that the collection come to Britain. The government has now offered the baron $ 100m—the money would be in addition to this year's annual arts budget of $ 147m—-plus whatever it would cost to find or build a new gallery for the pictures.The baron is unlikely to accept, though he may keep everyone in the dark as long as he can. Like any rich man, he enjoys being courted by governments and royalty. On balance, he feels committed to Spain. Unless the British can provide surroundings at least as grand as the Villharmosa Palace—he does not relish the prospect of his paintings ending up in Birmingham—he will probably not change his mind. (278 words)11 Which of the following statements is true about the baron's art collection?(A)It will be sold just before his death.(B)It will be exhabited in Birmingham.(C)It is so large that no one can afford the space.(D)The Spanish government will put it on display in next ten years12 The baron plans to set up a Thyssen Foundation because(A)he wants to keep the money coming in(B)no one else can afford it(C)he can hardly bear the possible separation of his art collection(D)it is greatly urgent for him to become world-renowned13 The word "bequeath"(Line 3, Para. 1) means(A)leave in his will(B)give reluctantly(C)exhibit proudly(D)exchange for money14 It can be inferred from the last paragraph that(A)the baron hopes to see the two governments competing(B)Spain has a long way to go to win the art collection(C)the British are sure to win the art collection at last(D)the baron cares so much about the grandeur of a museum for his collections15 What can be inferred from the whole passage?(A)The baron is a selfish man.(B)The art collection is so eye-catching just because it can bring much income to the exhibitor.(C)The baron has the finest art collection in the world.(D)Britain is the second country which will display the art collection.。
博士研究生考博英语阅读理解分类2022年模拟题7
博士研究生考博英语阅读理解分类2022年模拟题7(总分:180.00,做题时间:180分钟)一、Reading Comprehension(总题数:1,分数:100.00)二、Passage One(总题数:1,分数:25.00)1. What are those of us who have chosen careers in science and engineering able to do about our current problems?First, we can help destroy the false impression that science and engineering have caused the current world trouble. On the contrary, science and engineering have made vast contributions to better living for more people.Second, we can identify the many areas in which science and technology, more considerably used, can be of great service in the future than in the past to improve the quality of life. While we can make many speeches, and pass many laws, the quality of our environment will be improved only through better knowledge and better application of that knowledge.Third, we can recognize that much of the dissatisfaction we suffer today results from our very successes of former years. We have been so greatly successful in attaining material goals that we are deeply dissatisfied that we cannot attain other goals more rapidly. We have achieved a better life for most people, but we are unhappy that we have not spread it to all people. We have reduced many sources of environmental disasters, but we are unhappy that we have not conquered all of them. It is our raised expectations rather than our failures which now cause our distress.Granted that many of our current problems must be cured more by social, political, and economic instruments than science and technology, yet science and technology must still be the tools to make further advances in such things as clean air, clean water, better transportation, better medical care, more adequate welfare programs, purer food, conservation resources, and many other areas.(分数:45.00)(1). The author thinks that science and technology ______.(分数:25.00)A.have caused the current world problemsB.have made life better for more people √C.will, if not in the past, better people's life in the futureD.can not bring a better life for most people解析:第二段指出,有人认为,科学与技术造成了当今世界的许多问题,对这种错误认识,科技工程人员有义务加以纠正。
考博英语(阅读理解)练习试卷6(题后含答案及解析)
考博英语(阅读理解)练习试卷6(题后含答案及解析) 题型有:1. Reading ComprehensionReading ComprehensionAn American literary critic, humorous journalist, essayist, whose comic skepticism about human progress, expressed with penetrating style, is a continuing resource for all lovers of extravagant language. Mencken wrote—according to some estimations—3 000 newspaper columns. During the 15-year period following World War I , Mencken set the standard for satire in his day, and his essays are still widely read. Mencken was born in Baltimore, Maryland. He studied at the Baltimore Polytechnic Institute(1892—1896), continued to study literature with a private tutor, and worked in his father’s cigar factory(f896—1899). From 1899, when his father died, Mencken was a reporter or editor for several Baltimore papers, among them Baltimore Morning Herald. He later joined the staff of the Baltimore Sun , for which he worked throughout most of his life. From 1916 to 1918 he worked as a war correspondent in Germany and in Russia. Mencken gained a reputation in the trade as a boy wonder, for he was industrious and fertile and learned all there was to learn about a newspaper in a few years. He advanced with alarming rapidity, becoming city editor and two years later managing editor of the Herald, In 1906 when the Herald ceased to exist, Mencken went to the Sunpaper.s as Sunday editor, became an editorial writer, and in 1911 started his column, the Free Lance, in the Evening Sun. He began another series of weekly articles in 1919 and was associated with the Sunpapers, except for one short break, until 1948. At sixty-two Mencken had spent forty-three years as a newspaperman, forty as a writer of books, twenty-five as a reviewer, and twenty as a magazine editor. “I edited both newspapers and magazines, some of them successes and some ol them not, and got a close, confidential view of the manner in which opinion is formulated on this earth. . . Like any other man I have had my disasters and my miseries, and like any other author I have suffered from recurrent depressions and despairs, but taking one year with another I have had a fine time of it in this vale of sorrow, and no call to envy any man. “Mencken suffered a cerebral thrGmbosis(脑血栓) in 1948, from which he never fully recovered, and died on January 29, 1956. (349 words)1.What does the passage mainly discuss?A.Mencken’s life and career.B.Mencken’s literary style.C.Mencken’s reputation in America.D.Mencken’s self-evaluation.正确答案:A解析:B、C和D内容比较具体,不宜作为主题。
考博英语(阅读理解)练习试卷4(题后含答案及解析)
考博英语(阅读理解)练习试卷4(题后含答案及解析) 题型有:1. Reading ComprehensionReading ComprehensionAmid remarkable progress on inflation and fiscal reform, Italy heads into 1998 with bright prospects for economic growth and its first-round entry into a single-currency Europe all but certain. Continued wrangling over welfare reform is a potential stumbling block in the new year, but Italy appears to be on its way to a lasting recovery. The growth speedup began in the second quarter of 1997, but the pace has been exaggerated by government incentives to spur auto sales. Third-quarter real gross domestic product grew 1. 9% from a year ago, and given the jump in October industrial production, fourth-quarter GDP should reach 296. Although growth is expected to ease hack in the first half of 1998, as the auto-led boom wanes, several key factors will fuel continued growth. First, short-term interest rates have fallen 5 percentage points in the past two years, reflecting inflation’s drop from 6 % to 1.6% in November. Further cuts in official rates are expected after passage of the 1998 budget by year end 1997, as Italy aligns its rates with those across Europe prior to monetary union. Official rates are expected to drop from 6. 25% currently to 4. 5% or less during the first half, supplying a big boost to domestic demand. Also, while Italy’s fiscal policy will stay tighter than that of Europe generally, the severe drag of recent years will have lifted. Moreover, trade is a plus, since Italy is one of the European economies least exposed to the Asian crisis, based on an analysis by J. P. Morgan & Co. The lira should remain stable, and the downdraft from its steep appreciation in 1995 and 1996 is fading. Even with growth set to pick up, inflation in 1998 should remain within the Bank of Italy’s 2% target, especially with joblessness expected to remain above 12%, and with wage growth set to slow. Because 1997 inflation came in less than the government’s target, contractual wage adjustments for 1998 will adjust downward, reflecting the undershoot, from about 4% in 1997. Slower wage growth also will help the 1998 budget deficit to dip below 3% of GDP. (354 words)1.What’s the topic of this passage?A.Economic growth of Italy.B.Fiscal reform of Italy.C.Inflation in Italy.D.Fiscal policy of Italy.正确答案:A解析:文章的第一句话就是中心思想“随着意大利在通货膨胀和财政方面进行了改革并取得了进步……,”与A项内容相符。
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Passage 1The physical distribution of products has two primary aspects: transportation and storage. Both aspects are highly developed and specialized phases of marketing. The costs of both trans-porting and storing are built into the prices of products. Transportation can be by truck, rail-way, ship, or barge. For some items, such as exotic plants and flowers, or when rapid delivery is essential, air freight may be used.Storage, or warehousing, is a necessary function because production and consumption of goods rarely match: items generally are not sold as quickly as they are made. Inventories build up, both in warehouses and at retail establishments, before the foods are sold. The transporta-tion function is involved in bringing goods to a warehouse and taking them from it to retail stores.Storage performs the service of stabilizing market price. If, for example, no agricultural product could be stored, all food would hxdye to be put on the market immediately. This would, of course, create a glut and lower prices drastically. There would be an immediate benefit to consumers, but in the long run they would suffer. Farmers, because of low prices, would be forced off the land, and the amount of food produced would decrease. This, in turn, would raise consumer prices.Warehouses for storage are of several types. Private warehouses are owned by manufactur-ers. Public warehouses, in spite of their name, are privately owned facilities, but they are in-dependent of manufacturer ownership. General-merchandise warehouses store a great variety of products. Cold-storage warehouses store perishable goods, especially food products. Grain ele-vators are a kind of warehouse used to keep wheat and other grains from spoiling. A bonded warehouse is one that stores foods, frequently imported, on which taxes must be paid before they are sold. Cigarettes and alcoholic beverages are common examples.The distribution center is a more recently developed kind of warehouse. Many large com- panics hxdye several manufacturing plants, sometimes located outside the country. Each plant does not make every company product but specializes in one or more of them. The distribution center allows a manufacturer to bring together all product lines in one place. Its purpose is to minimize storage and to ease the flow of goods from manufacturers to retailers rather than build up extensive inventories. It reduces costs byspeeding up product turnover. Very large corporations will hxdye several distribution centers regionally or internationally based1. The main subject of this passage is______.A) transportation and storage B) storage of productsC) distribution center D) two main aspects of product distribution2. Warehousing is important in that _A) inventories build up before the goods are soldB) the prices will go downC) more goods are produced than can be consumedD) the food has to be put on the market immediately3. How many types of warehouses for storage are discussed in the passage?A) 3. B) 4. C) 6. D) 7.4. Where might one find meat and milk?A) Grain elevator. B) Cold-storage warehouse.C) Private warehouse. D) Bonded warehouse.5. What is NOT true of a distribution center?A) It is a relatively new type of warehouse.B) Product is replaced more quickly and costs are down.C) Some distribution centers are not built in the sane country as the factoryD) It builds up extensive inventories to minimize storage.Passage 2How much pain do animals feel? This is a question which has caused endless controversy. Opponents of big game shooting, for example, arouse our pity by describing tile agonies of a badly-wounded beast that has crawled into a comer to die. In countries where the fox, the hare and the deer are hunted, animal-lovers paint harrowing pictures of the pursued animal suffering not only the physical distress of the chase but the mental anguish of anticipated death.The usual answer to these criticisms is that animals do not suffer in the same way, or to the same extent, as we de. Man was created with a delicate nervous system and has never lost his acute sensitiveness to pain; animals, on the other hand, had lesssensitive systems to begin with and in the course of millions of years, hxdye developed a capacity of ignoring injuries and disorders which human beings would find intolerable. For example, a dog will continue to play with a ball even after a serious injury to his foot; he may be unable to run without limping, but he will go on trying long after a human child would hxdye had to stop because of the pain. We are told, moreover, that even when animals appear to us to be suffering acutely, this is not so; what seems to us to be agonized contortions caused by pain are in fact no more than muscular contractions over which they hxdye no control.These arguments are unsatisfactory because something about which we know a great deal is being compared with something we can only conjecture. We know what we feel; we hxdye no means of knowing what animals feet. Some creatures with a less delicate nervous system than ours may be incapable of feeling pain to the same extent as we do: that as far as we are entitled to do, the most humane attitude, surely, is to assume that no animals are entirely exempt from physical pain and that we ought, therefore, wherever possible, to xdyoid causing suffering even to the least of them.6. Animal-lovers assume that animals, being hunted, would suffer from ____.A) a great deal of agony both in body and in spiritB) mental distress once they are woundedC) only body pains without feeling sadD) crawling into the comer to die7. Supporters of game shooting may argue that animals ______.A) cannot control their muscular contractionsB) hxdye developed a capacity of feeling no painC) are not as acutely sensitive as human beings to injuriesD) can endure all kinds of disorders8. The author feels sure that _____.A) animals don't show suffering to usB) dogs are more endurable than human childrenC) we cannot know what animals feelD) comparing animals with human beings is not appropriate9. What is the author's opinion about animal hunting?A) We should feel the same as the hunted animals do.B) We should protect and sxdye all the animals.C) We shouldn't cause suffering to them.D) We should take care of them if we can.10. This passage seems to ____.A) argue for something B) explain somethingC) tell a story D) describe an objectPassage 3In science, a theory is a reasonable explanation of observed events that are related. A the-ory often involves an imaginary model that helps scientists picture the way an observed event could be produced. A good example of this is found in the kinetic molecular theory, in which gases are pictured as being made up of many small particles that are in constant motion.A useful theory, in addition to explaining past observations, helps to predict events that hxdye not as yet been observed. After a theory has been publicized, scientists design experi-merits to test the theory. If observations confirm the scientists' predictions, the theory is sup-ported. If observations do not confirm the predictions, the scientists must search further. There may be a fault in the experiment, or the theory may hxdye to be revised or rejected.Science involves imagination and creative thinking as well as collecting information and performing experiments. Facts by themselves are not science. As the mathematician Jules Henri Poincare said: "Science is built with facts just as a house is built with bricks, but a collection of facts cannot be called science any more than a pile of bricks can be called a house."Most scientists start an investigation by finding out what other scientists hxdye learned about a particular problem. After known facts hxdye been gathered, the scientist comes to the part of the investigation that requires considerable imagination. Possible solutions to the problem areformulated. These possible solutions are called hypotheses.In a way, any hypothesis is a leap into the unknown. It extends the scientist'sthinking beyond the known facts. The scientist plans experiments, performs calculations, and makes ob-servations to test hypotheses. For without hypotheses, further investigation lacks purpose and direction. When hypotheses are confirmed, they are incorporated into theories.11. The word "this" in the 3rd sentence in paragraph 1 refers to ______.A) a good example B) an imaginary modelC) the kinetic molecular theory D) an observed event12. Bricks are mentioned in the 3rd paragraph to indicate how ____.A) mathematicians approach scienceB) building a house is like performing experimentsC) science is more than a collection of factsD) scientific experiments hxdye led to improved technology13. In the last paragraph, the author refers to a hypothesis as "a leap into the unknown" in or- der to show that hypotheses ______.A) are sometimes ill-conceived B) can lead to dangerous resultsC) go beyond xdyailable facts D) require effort to formulate14. What is a major function of hypotheses as implied in the last paragraph7A) Sifting through known facts.B) Communicating a scientist's thoughts to others.C) Providing direction for scientific research.D) Linking together different theories.15. Which of the following statements is supported by the passage?A) Theories are simply imaginary models of past events.B) It is better to revise a hypothesis than to reject it.C) A scientist's most difficult task is testing hypotheses.D) A good scientist needs to be creative.B) Education systems need to be radically reformed.C) Going to school is only part of how people become educated.D) Education involves many years of professional training.20. The passage is organized by ___A) listing and discussing several educational problemsB) contrasting the meanings of two related conceptsC) narrating a story about excellent teachersD) giving examples of different kinds of schoolsPassage 5The phrase "civil disobedience" is usually attributed to thenineteenth-century American philosopher Henry Dxdyid Thoreau. Although the concept is unquestionably much older (its rootslie in ancient Greek philosophy), the designation is nonetheless telling: people tend to credit Thoreau, an American, with the idea because civil disobedience, is a hallmark of American eth- ics and politics. The clash between the dictates of individual conscience on one hand, and the imperatives of civil law on the other, forms much of this country's history. Examples range from the incidents leading up to the Revolution through the many social protests of the 1960'S.What constitutes an act of civil disobedience? First, an act of civil disobedience requires a formal legal structure that is enforced by the government. Second, it requires as its target a specific law or policy, rather than the entire legal system. This is true even if the protester's ul- timate goal is to alter radically the legal system; an act of civil disobedience must be directed against one concrete example of that system's inequities. The American civil rights movement, for example, first targeted discrimination on public transportation, then used its victories as a springboard to address other injustices. Third, the act must be done publicly, because the ef- fectiveness of such a protest depends on its ability to mobilize public sentiment against the protest's target. Finally, those protesting must understand the penalties their acts entail--us-ually jailing--and be willing to accept those penalties. This last requirement strengthens the act's effect on public opinion, since it serves to underscore the injustice of the protest's target.21. The word "telling" in the 2nd sentence in paragraph 1 is closest in meaning to _____.A) inappropriate B) revealing C) insignificant D)challenging22. In the passage, the author mentions that the civil rights movement _______.A) focused its early efforts on public transportationB) did not always practice civil disobedienceC) started in nineteenth centuryD) used the Revolution of 1776 as its model23. According to the passage, for which of the following reasons should civil protests be donepublicly?A) To alter the legal system in radical way.B) To uphold the imperatives of civil law.C) To stimulate public support for a cause.D) To announce the success of a previous act of civil disobedience.24. The author suggests that when protesters go to jail _______.A) it helps convince the public to support their causeB) they usually do so unwillinglyC) it is because their protest has not gone according to planD) they are always released almost immediately25. In the 2nd paragraph, the author ________.A) argues that civil disobedience is unnecessaryB) provides an extensive history of civil disobedienceC) presents several differing viewpoints on civil disobedienceD) defines the concept of civil disobediencePassage 6In taking up a new life across the Atlantic, the early European settlers of the United States did not abandon the diversions with which their ancestors had traditionally relieved the tedium of life. Neither the harshness of existence on the new continent nor the scattered population nor the disapproval of the clergy discouraged the majority from the pursuit of pleasure.City and country dwellers, of course, conducted this pursuit in different ways. Farm dwellers in their isolation not only found it harder to locate companions in play but also, thanks to the unending demands and pressures of their work, felt it necessary to combine fun with purpose. No other set of colonists took so seriously an expression of the period, "Leisure is time for doing something useful." In the countryside farmers therefore relieved the burden of the daily routine with such double-purpose relaxations as hunting, fishing, and trapping. When a neighbor needed help, families rallied from miles around to assist in building a house or barn, husking corn, shearing sheep, or chopping wood. Food, drink, and celebration after the group workprovided relaxation and soothed weary muscles.The most eagerly anticipated social events were the rural parties. Hundredsof men, women, and children attended from far and near. The men bought or traded farm animals and acquired needed merchandise while the women displayed food prepared in their kitchens, and everyone, including the youngsters, watched or participated in a variety of competitive sports, with prizes awarded to the winners. These events typically included horse races, wrestling matches, and foot races, as well as some nonathletic events such as whistling competitions. No other occasions did so much to relieve the isolation of farm existence.With the open countryside everywhere at hand, city dwellers naturally shared in some ofthe rural diversions. Fxdyored recreations included fishing, hunting, skating, and swimming. But city dwellers also developed other pleasures, which only compact communities made possible.26. What is the passage mainly about?A) Methods of fanning used by early settlers of the United States.B) Hardships faced by the early settlers of the United States.C) Methods of buying, selling, and trading used by early settlers of the United States.D) Ways in which early settlers of the United States relaxed.27. What can be inferred about the diversions of the early settlers of the United States?A) They followed a pattern Begun in Europe.B) They were enjoyed more frequently than in Europe.C) The clergy organized them.D) Only the wealthy participated in them.28. Which of the following can be said about the country dwellers' altitude toward "the pursuitof pleasure" ?A) They felt that it should help keep their minds on their work.B) They felt that it was not necessary.C) They felt that it should be productive.D) They felt that it should not involve eating and drinking.29. What is meant by the phrase "double-purpose" in the 4th sentence in paragraph 2?A) Very frequent. B) Useful and enjoyable.C) Extremely necessary. D) Positive and negative.30. What will the author probably discuss in the paragraph following this passage?A) The rural diversions enjoyed by both urban and rural people.B) Leisure activities of city dwellers.C) Building methods of the early settlers in rural areas.D) Changes in lifestyles of settlers as they moved to the cities.Passage 7For me, scientific knowledge is divided into mathematical sciences, natural sciences or sciences dealing with the natural world (physical and biological sciences), and sciences dealing with mankind (psychology, sociology, all the sciences of cultural achievements, every kind of historical knowledge). Apart from these sciences is philosophy, about which we will talk later. In the first place, all this is pure or theoretical knowledge that is intrinsic and consubstautial to man. What distinguishes man from animal is that he knows and needs to know. If man did not know that the world existed, and that the world was of a certain kind, that he was in the world and that he himself was of a certain kind, he wouldn't be a man. The technical aspects or applications ofknowledge are equally necessary for man and are of the greatest importance, because they also contribute to defining him as man and permit him to pursue a life increasingly more truly human.But even while enjoying the results of technical progress, he must defend the primacy and autonomy of pure knowledge. Knowledge sought directly for its practical applications will hxdye immediate and foreseeable success, but not the kind of important result whose revolutionary scope is in large part unforeseen, except by the imagination of the Utopians. Let me recall a we N-known example. If the Greek mathematicians had not applied themselves to the investigation of conic sections zealously and without the least suspicion that it might someday be useful, it would not hxdye been possible centuries later to nxdyigate far from shore. The first men to study the nature of electricity could not imagine that their experiments, carried on because of mere intellectual curiosity, would eventually lead to modern electrical technology, without which we can scarcely conceive of contemporary life. Pure knowledge is valuable for its own sake, be-cause the human spirit cannot resign itself to ignorance. But, in addition, the foundation for practical results would not hxdye been reached if this knowledge had not been sought disinterestedly.31. The most important advances made by mankind come from __.A) technical applications B) apparently useless informationC) the natural sciences D) philosophy32. The word "Utopians" in the 2nd sentence in paragraph 2 is closest in meaning to __.A) idealists B) Greek mathematiciansC) scientists D) true human33. In the paragraph the follows this passage, we may expect the author to discuss __.A) the value of technical research B) the value of pure researchC) philosophy D) unforeseen discoveries34. The word "resign" in the 6th sentence in the 2nd paragraph is closest in meaning toA) dismiss B) quit C) remark D) submit35. The title that best expresses the ideas of this passage is __.A) "Technical Progress"B) "A Little Learning is a Dangerous Thing"C) "Man's Distinguishing Characteristics"D) "The Function of Theoretical Knowledge as Compared to Its Practical Applications"Passage 8In most of the human civilization of which we hxdye any proper records, youth has drawn oneither art or life for models, planning to emulate the heroes depicted in epics on the shadow play screen or the stage, or those known human beings, fathers or grandfathers, chiefs or craftsmen, whose every characteristic can be studied and imitated. As recently as 1910, this was the prevailing condition in the United States. If he came from a nonliterate background, the recent immigrant learned to speak, move, and think like an American by using his eyes and ears on the labor line and in the homes of more acculturated cousins, by watching school children, or by absorbing the standards of the teacher, the foreman, the clerk who served him in the store. For the literate and the literate children of the nouliterate, there was art--the story of the frustrated artist in the prairie town, of the second generation battling with the limitations of the first. And at a simpler level, there were the Western and Hollywood fairy tales which pointed a moral but did not, as a rule, teach table manners.With the development of the countermovement against Hollywood, with the efflorescence (全盛)of photography, with Time-Life-Fortune types of reporting and the dead-pan New Yorker manner of describing the life of an old-clothes dealer in a forgotten street or of presenting the "accurate", "checked" details of the lives of people whose eminence gxdye at least a sort of license to attack them, with the passion for "human documents" in Depression days--a necessary substitute for proletarian art among middle class writers who knew nothing about proletarians, and middleclass readers who needed the shock of verisimilitude(真实)--a new era in American life was ushered in, the era in which young people imitated neither life nor art nor fairy tale, but instead were presentedwith models drawn from life with minimal but crucial distortions. Doctored life histories, posed carelessness, "candid" shots of people in their own homes which took hours to arrange, pictures shot from real life to scripts written months before supplemented by national polls and surveys which assured the reader that this bobby soxer (少女)did indeed represent a national norm or a growing trend--replaced the older models.36. This article is based on the idea that ________.A) people today no longer follow modelsB) People attach little importance to whoever they followC) people generally pattern their lives after modelsD) People no longer respect heroes37. Stories of the second generation battling against the limitations of the first were often re- sponsible for ______.A) inspiring literate immigrantsB) frustrating educated immigrantsC) preventing the assimilation of immigrantsD) instilling into immigrants an antagonistic attitude toward their forebears38. The countermovement against Hollywood was a movement ______A) toward realism B) toward fantasyC) against the teaching of morals D) away from realism39. The author attributes the change in attitudes since 1910 to ____A) a logical evolution of ideas B) widespread moral decayC) the influence of the press D) a philosophy of plenty40. The word "distortions" at the end of the 2nd sentence in paragraph 2 is closest in meaningto ______.A) presentations B) misinterpretationsC) influences D) limitationsPassage 9The conflict between good and evil is a common theme running through the great literatureand drama of the world, from the time of the ancient Greeks to all the present. The principle that conflict is the heart of dramatic action when illustrated by concrete examples, almost always turns up some aspect of the struggle between good and evil.The idea that there is neither good nor evil--in any absolute moral or religious sense—is widespread in our times. There are various relativistic and behxdyioristic standards of ethics. If these standards even admit the distinction between good and evil, it is as a relative matter and not as whirlwind of choices that lies at the center of living. In any such state of mind, conflict can at best, be only a petty matter, lacking true universality. The acts of the evildoer and of the virtuous man alike become dramatically neutralized. Imagine the reduced effect of Crime and Punishment or The Brothers Karamazoc, had Dostoevsky thought that good and evil, as portrayed in those books, were wholly relative, and if he had had no conviction about them.You can't hxdye a vital literature if you ignore or shun evil. What you get then is the world of Pollyanna, goody-goody in place of the good. Cry, The Beloved Country is a great and dramatic novel because Alan Paton, in addition to being a skilled workman, sees with clear eyes both good and evil, differentiates them, pitches them into conflict with each other, and takes sides. He sees that the native boy Absalom Kumalo, who has murdered, cannot be judged justly without taking into account the environment that has had part in shaping him. But Paton sees, too, that Absalom the individual, not society the abstraction, committed the act and is responsible for it. Mr. Paton understands mercy. He knows that this precious thing is not evoked by sentimental impulse, but by a searching examination of the realities of human action. Mercy follows a judgment; it does not precede it.One of the novels by the talented Paul Bowles, Let It Come Down, is full of motion, full of sensational deprxdyities, and is a crashing bore. The book recognizes no evil, and is coldly indifferent to the moral behxdyior of its characters. It is a long shrug. Such a view of life is non- dramatic and negates the vital essence of drama.41. In our age, according to the author, a standpoint often taken in the area of ethics is the _____.A) relativistic view of morals B) greater concern with religionC) emphasis on evil D) greater concern with universals42. The author believes that in great literature, as in life, good and evil are ____A) relative B) unimportantC) constantly in conflict D) dramatically neutralized43. When the author uses the expression "it is a long shrug" in referring to Bowles's book, heis commenting on the ___A) length of the novelB) indifference to the moral behxdyior of the charactersC) monotony of the storyD) sensational deprxdyities of the book44. In the opinion of the author, Cry, The Beloved Country is a great and dramatic novel be-cause of Paton's ____.A) insight into human behxdyiorB) behxdyioristic beliefsC) treatment of good and evil as abstractionsD) willingness to make moral judgments45. The word "shun" in the 1st sentence in paragraph 3 is closest in meaning to______.A) shut B) attend C) show D) xdyoidPassage 10African-American filmmakers should be in an enviable position, for since the early 1990sthere has been a steady wxdye of low budget black films which hxdye turned a solid profit due toa very strong response in the African-American community and a larger crossover audience thananticipated. Any rational business manager would now identify this sector as aprime candidatefor expansion, but if the films hxdye done so well with limited production and marketing costs,why hxdye they not received full scale support7Many analysts feel the business is engulfed in a miasma of self-serving and self-fulfilling myths based on the unspoken assumption that Mfrican-American films can never be vehicles of prestige, glamour, or celebrity. The relationship players hxdye convinced themselves that black films can do only a limited domestic business under any circumstance and hxdye virtually no for- eign box office potential. As executives who now control the film industry grew up in those de- cades when there were few black images on the screen and those that did exist were produced byfilm-makers with limited knowledge of the black community, it is little wonder that they xdyoid ideological issues, and seek to continue making films that they are comfortable with by xdyoiding they negative imagery of films they would prefer to eschew entirely.Also to blame for this deleterious phenomenon are legions of desperate and Machixdyellian African-American film producers, directors, and writers who would transform The Birth of A Nation into a black musical as long as it would provide them with gainful studio employment. These filmmakers not only perpetuate negative stereotypes in their films, but they also season them with a sprinkling ofAfrican-American authenticity. This situation would be onerous enough, given the economic exploitation of the community involved; unfortunately these films also validate the pathologies they depict. The constant projection of the black community as a kind of urban Wild Kingdom, the glamorization of tragic situations, and the celebration of inner city drug dealers and gangsters has a programming effect on black youth. The power of music infilm is a particularly seductive and propagandistic force which in the recent crop of African-American films has rarely been used in a positive social manner.What flows from this combination of factors is a policy of market exploitation rather than market development, evidenced by the fact that any number of films may open to 1,500 screens。