[考研类试卷]考研英语模拟试卷291及答案与解析.doc
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1、考研英语模拟试卷 291 及答案与解析一、Section I Use of EnglishDirections: Read the following text. Choose the best word(s) for each numbered blank and mark A, B, C or D. (10 points) 0 Did you ever have someones name on the tip of your tongue and yet you were unable to recall it?【1】this happens again, do no【2】to reca
2、ll it. Do something【3】for a couple of minutes,【4】the name may come into your head. The name is there since you have met【5】person and his name. It【6】has to be dug out. The initial effort to recall【 7】the mind for operation, but it is the subconscious【8】that go to work to dig up a【9】memory. Forcing yo
3、urself to recall【 10】never helps because it doesnt【11】your memory;it only tightens it. Students find the preparatory method help【12】examinations. They read over the questions【13】trying to answer any of them.【14】 they answer first the ones【 15】which they are most confident. Meanwhile, deeper mental a
4、ctivities in the subconscious mind are taking【16】; work is being done on the【17】difficult questions. By the time the easier questions are answered, answers【18】the more difficult ones will usually begin to【19】into consciousness. It is often【20】a question of waiting for recall to come to the memory. (
5、A)As(B) When(C) While(D)Whether(A)try(B) want(C) hesitate(D)wait(A)simple(B) apart(C) else(D)similar(A)unless(B) and(C) or(D)until(A)some(B) certain(C) a(D)this(A)then(B) really(C) only(D)indeed(A)leads(B) begins(C) helps(D)prepares(A)deeds(B) activities(C) movements(D)procedures(A)light(B) fresh(C)
6、 dim(D)dark(A)merely(B) almost(C) barely(D)hardly(A)loosen(B) weaken(C) decrease(D)reduce(A)into(B) in(C) about(D)by(A)after(B) besides(C) before(D)against(A)Thus(B) But(C) Therefore(D)Then(A)of(B) with(C) for(D)in(A)place(B) shape(C) charge(D)action(A)too(B) less(C) not(D)more(A)to(B) of(C) about(D
7、)for(A)appear(B) grow(C) extend(D)come(A)nearly(B) likely(C) just(D)evenPart ADirections: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)20 Every newborn baby is dealt a hand of cards which helps to determine how long he or she will be allowe
8、d to play the game of life. Good cards will help those who have them to have a long and healthy existence, while bad cards will bring to those who have them terrible diseases like high blood pressure and heart disease. Occasionally, cards are dealt out that doom their holders to an early death. In t
9、he past, people never knew exactly which cards they had been dealt. They could guess at the future only by looking at the kind of health problems experienced by their parents or grandparents.Genetic testing, which makes it possible to find dangerous genes, has changed all this. But, until recently,
10、if you were tested positive for a bad gene you were not obliged to reveal this to anyone else except in a few extreme circumstances. This month, however, Britain became the first country in the world to allow life insurers to ask for test results.So far, approval has been given only for a test for a
11、 fatal brain disorder known as Huntingtons disease. But ten other tests (for seven diseases) are already in use and are awaiting similar approval.The independent body that gives approval, the Department of Healths genetics and insurance committee, does not have to decide whether the use of genetic i
12、nformation in insurance is ethical. It must judge only whether the tests are reliable to insurers. In the case of Huntingtons disease the answer is clear-cut. People unlucky enough to have this gene will die early, and cost life insurers dearly.This is only the start. Clear-cut genetic answers, wher
13、e a gene is simply and directly related to a persons risk of death, are uncommon. More usually, a group of genes is associated with the risk of developing a common disease, dependent on the presence of other genetic or environmental factors. But, as tests improve, it will become possible to predict
14、whether or not a particular individual is at risk. In the next few years researchers will discover more and more about the functions of individual genes and what health risks or benefits are associated with them. 21 What does the word “cards” (Line 1, Para. 1) refer to?(A)Diseases.(B) Genes.(C) Prob
15、lems.(D)Tests. 22 The function of genetic testing is(A)to enable people to change genes.(B) to help people to create good genes.(C) to predict diseases people may have.(D)to detect accurately what diseases people may develop. 23 Health authorities allow insurers to use genetic information for the pu
16、rpose of(A)improving genetic testing technology.(B) safeguarding patients interests.(C) promoting disease prevention,(D)reducing insurance payments. 24 Which of the following statements is true according to the text?(A)Genes may contribute to some common diseases.(B) Environmental factors cause more
17、 diseases than genes.(C) It is common that most fatal diseases are caused by genes.(D)It is impossible to get clear-cut genetic answers. 25 The authors purpose in writing the passage is(A)to indicate the way genetic testing works.(B) to show the power of ones genetic makeup.(C) to introduce genetic
18、testing and its function.(D)to reveal the influence of environment on genes. 25 Good teachers matter. This may seem obvious to anyone who has a child in school or, for that matter, to anyone who has been a child in school. For a long time, though, researchers couldnt actually prove that teaching tal
19、ent was important. But new research finally shows that teacher quality is a close cousin to student achievement: A great teacher can cram one-and-a-half grades worth of learning into a single year, while laggards are lucky to accomplish half that much.Yet, while we know now that better teachers are
20、critical, flaws in the way that administrators select and retain them mean that schools dont always hire the best.Failing to recognize the qualities that make teachers truly effective and to construct incentives to attract and retain more of these top performers has serious consequences. Higher sala
21、ries draw more weak as well as strong applicants into teaching applicants the current hiring system cant adequately screen. Unless administrators have incentives to hire the best teachers available, its pointless to give them a larger group to choose from. Study after study has shown that teachers w
22、ith masters degrees are no better than those without. Job experience does matter, but only for the first few years, according to research by Hoover Institutions Eric A. Hanushek. A teacher with 15 years of experience is no more effective, on average, than a teacher with five years of experience, but
23、 which one do you think is paid more?This toxic combination of rigid pay and steep rewards for seniority causes average quality to decline rather than increase as teacher groups get older. Top performers often leave the field early for industries that reward their excellence. Mediocre teachers, on t
24、he other hand, are soon overcompensated by seniority pay. And because they are paid more than their skills command elsewhere, these less-capable pedagogues settle in to provide many years-of ineffectual instruction.So how can we separate the wheat from the chaff in the teaching profession? To make A
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