【考研类试卷】考博英语-88及答案解析.doc
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1、考博英语-88 及答案解析(总分:100.00,做题时间:90 分钟)一、Reading Comprehensio(总题数:0,分数:0.00)二、Text 1(总题数:1,分数:20.00)“I have great confidence that by the end of the decade we“ll know in vast detail how cancer cells arise,“ says microbiologist Robert Weinberg, an expert on cancer. “But,“ he cautions, “some people have th
2、e idea that once one understands the causes, the cure will rapidly follow. Consider Pasteur, he discovered the causes of many kinds of infections, but it was fifty or sixty years before cures were available.“ This year, 50 percent of the 910,000 people who suffer from cancer will survive at least fi
3、ve years. In the year 2000, the National Cancer Institute estimates, that figure will be 75 percent. For some skin cancers, the five-year survival rate is as high as 90 percent. But other survival statistics are still discouraging13 percent for lung cancer, and 2 percent for cancer of the pancreas.
4、With as many as 120 varieties in existence, discovering how cancer works is not easy. The researchers made great progress in the early 1970s, when they discovered that oncogenes, which are cancer-causing genes, are inactive in normal cells. Anything from cosmic rays to radiation to diet may activate
5、 a dormant oncogene, but how remains unknown. If several oncogenes are driven into action, the cell, unable to turn them off, becomes cancerous. The exact mechanisms involved are still mysterious, but the likelihood that many cancers are initiated at the level of genes suggests that we will never pr
6、event all cancers. “Changes are a normal part of the evolutionary process,“ says oncologist William Hayward. Environmental factors can never be totally eliminated; as Hayward points out, “We can“t prepare a medicine against cosmic rays.“ The prospects for cure, though still distant, are brighter. “F
7、irst, we need to understand how the normal cell controls itself. Second, we have to determine whether there are a limited number of genes in cells which are always responsible for at least part of the trouble. If we can understand how cancer works, we can counteract its action.“(分数:20.00)(1).The exa
8、mple of Pasteur in the passage is used to _.(分数:5.00)A.predict that the secret of cancer will be disclosed in a decadeB.indicate that the prospects for curing cancer are brightC.prove that cancer will be cured in fifty to sixty yearsD.warn that there is still a long way to go before cancer can be co
9、nquered(2).The author implies that by the year 2000, _.(分数:5.00)A.there will be a drastic rise in the five-year survival rate of skin-cancer patientsB.90 percent of the skin-cancer patients today will still be livingC.the survival statistics will be fairly even among patients with various cancersD.t
10、here won“t be a drastic increase of survival rate of all cancer patients(3).Oncogenes are cancer-causing genes _.(分数:5.00)A.that are always in operation in a healthy personB.which remain unharmful so long as they are not activatedC.that can be driven out of normal cellsD.which normal cells can“t tur
11、n off(4).The word “dormant“ in the third paragraph most probably means _.(分数:5.00)A.deadB.ever-presentC.inactiveD.potential三、Text 2(总题数:1,分数:20.00)Discoveries in science and technology are thought by “untaught minds“ to come in blinding flashes or as the result of dramatic accidents. Sir Alexander F
12、leming did not, as legend would have it, look at the mold on a piece of cheese and get the idea for penicillin there and then. He experimented with antibacterial substances for nine years before he made his discovery. Inventions and innovations almost always come out of laborious trial and error Inn
13、ovation is like soccer; even the best players miss the goal and have their shots blocked much more frequently than they score. The point is that the players who score most are the ones who take most shots at the goal and so it goes with innovation in any field of activity. The prime difference betwe
14、en innovators and others is one of approach. Everybody gets ideas, but innovators work consciously on theirs, and they follow them through until they prove practicable or otherwise. What ordinary people see as fanciful abstractions, professional innovators see as solid possibilities. “Creative think
15、ing may mean simply the realization that there“s no particular virtue in doing things the way they have always been done,“ wrote Rudolph Flesch, a language authority, this accounts for our reaction to seemingly simple innovations like plastic garbage bags and suitcases on wheels that make life more
16、convenient: “How come nobody thought of that before?“ The creative approach begins with the proposition that nothing is as it appears. Innovators will not accept that there is only one way to do anything. Faced with getting from A to B, the average person will automatically set out on the best-known
17、 and apparently simplest route. The innovators will search for alternate courses, which may prove easier in the long run and are bound to be more interesting and challenging even if they lead to dead ends. Highly creative individuals really do march to a different drummer.(分数:20.00)(1).What does the
18、 author probably mean by “untaught mind“ in the first paragraph?(分数:5.00)A.A person ignorant of the hard work involved in experimentation.B.A citizen of a society that restricts personal creativity.C.A person who has had no education.D.An individual who often comes up with new ideas by accident.(2).
19、According to the author, what distinguishes innovators from non-innovators?(分数:5.00)A.The variety of ideas they have.B.The intelligence they possess.C.The way they deal with problems.D.The way they present their findings.(3).The author quotes Rudolph Flesch in Paragraph 3 because _.(分数:5.00)A.Rudolp
20、h Flesch is the best-known expert in the study of human creativityB.the quotation strengthens the assertion that creative individuals look for new ways of doing thingsC.the reader is familiar with Rudolph Flesch“s point of viewD.the quotation adds a new idea to the information previously presented(4
21、).The phrase “march to a different drummer“ (the last line of the passage) suggests that highly creative individuals are _.(分数:5.00)A.diligent in pursuing their goalsB.reluctant to follow common ways of doing thingsC.devoted to the progress of scienceD.concerned about the advance of society四、Text 3(
22、总题数:1,分数:20.00)Is language, like food, a basic human need without which a child at a critical period of life can be starved and damaged? Judging from the drastic experiment of Frederick in the thirteenth century, it may be. Hoping to discover what language a child would speak if he heard no mother t
23、ongue, he told the nurses to keep silent. All the infants died before the first year. But clearly there was more than lack of language here. What was missing was good mothering. Without good mothering, in the first year of life especially, the capacity to survive is seriously affected. Today no such
24、 severe lack exists as that ordered by Frederick. Nevertheless, some children are still backward in speaking. Most often the reason for this is that the mother is insensitive to the signals of the infant, whose brain is programmed to learn language rapidly. If these sensitive periods are neglected,
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- 考研 试卷 英语 88 答案 解析 DOC
