[外语类试卷]北京大学考博英语模拟试卷1及答案与解析.doc
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1、北京大学考博英语模拟试卷 1及答案与解析 一、 Structure and Vocabulary 1 on the first day when a pupil enters school, he is asked to _ to the school rules. ( A) concede ( B) conform ( C) comply ( D) confront 2 once the _ contradiction is grasped, all problems will be readily solved. ( A) principle ( B) principal ( C) pot
2、ential ( D) primitive 3 If you want to go to the concert, youll have to make a _ ,or there will be no tickets. ( A) reservation ( B) punctuality ( C) compliment ( D) clarity 4 I arrive at nine oclock, teach until twelve thirty and then have a meal; that is my morning _ . ( A) habit ( B) custom ( C)
3、practice ( D) routine 5 David _ his companys success to the unity of all the staff and their persevering hard work. ( A) attributed ( B) contributed ( C) acknowledged ( D) pledged 6 Youve been talking with David all evening when you ought to be _ with other guests. ( A) blending ( B) integrating ( C
4、) mingling ( D) incorporating 7 I asked my mother if I could go out, and she _ . ( A) descended ( B) contented ( C) consented ( D) ascended 8 The room is so _ with furniture that it is hard to move about. ( A) muddled ( B) cluttered ( C) distributed ( D) scattered 9 Cant you speak more _ to your par
5、ents? ( A) respectably ( B) respectingly ( C) respectively ( D) respectfully 10 Some _ good luck brought us nothing but trouble. ( A) seemingly ( B) satisfactorily ( C) uniformly ( D) universally 11 Sometimes children have trouble _ fact from fiction and may believe that such things actually exist.
6、( A) to separate ( B) separating ( C) for separating ( D) of separating 12 Although punctual himself, the professor was quite used _ ate for his lecture. ( A) to have students ( B) for students being ( C) for students to be ( D) to students being 13 Its no use _ me not to worry. ( A) you tell ( B) y
7、our telling ( C) for you to have told ( D) having told 14 _ all our kindness to help her, Sara refused to listen. ( A) At ( B) In ( C) For ( D) on 15 The children prefer camping in the mountains _ an indoor activity. ( A) to ( B) than ( C) for ( D) with 16 _ of the burden of ice, the balloon climbed
8、 up and drifted to the South. ( A) To be free ( B) To free ( C) Freeing ( D) Freed 17 _ quite recently, most mothers in Britain did not take paid work outside the home. ( A) Until ( B) Before ( C) From ( D) Since 18 _ enough time and money, the researchers would have been able to discover more in th
9、is field. ( A) Giving ( B) To give ( C) Given ( D) Being given 19 Not only _ us light, but also it gives us heat ( A) the sun gives ( B) the sun does give ( C) gives the sun ( D) does the sun give 20 _ the claim about German economic might, it is somewhat surprising how relatively small the German e
10、conomy actually is. ( A) To give ( B) Given ( C) Giving ( D) Having given 二、 Reading Comprehension 20 Gene therapy and gene-based drugs are two ways we could benefit from our growing mastery of genetic science. But there will be others as well. Here is one of the remarkable therapies on the cutting
11、edge of genetic research that could make their way into mainstream medicine in the coming years. While its true that just about every cell in the body has the instructions to make a complete human, most of those instructions are inactivated, and with good reason r the last thing you want for your br
12、ain cells is to start churning out stomach acid or your nose to turn into a kidney. The only time cells truly have the potential to turn into any and all body parts is very early in a pregnancy, When so-called stem cells havent begun to specialize. Yet this untapped potential could be a terrific boo
13、n to medicine. Most diseases involve the death of healthy cells-brain cells in Alzheimers, cardiac cells in heart disease, pancreatic cells in diabetes, to name a few ff doctors could isolate stem cells, then direct their growth, they might be able to furnish patients with healthy replacement tissue
14、. It was incredibly difficult, but last fall scientists at the University of Wisconsin managed to isolate stem cells and get them to grow into neural, gut, muscle and bone cells. The process still cant be controlled, and may have unforeseen limitations; but if efforts to understand and master stem-c
15、ell development prove successful, doctors will have a therapeutic tool of incredible power. The same applies to cloning, which is really just the other side of the coin; true cloning, as first shown with the sheep Dolly two years ago, involves taking a developed cell and reactivating the genome with
16、in, resetting its developmental instructions to a pristine state. Once that happens, the rejuvenated cell can develop into a full-fledged animal, genetically identical to its parent. For agriculture, in which purely physical characteristics like milk production in a cow or low fat in a hog have real
17、 market value, biological carbon copies could become routine within a few years. This past year scientists have done for mice and cows what Ian Wilmut did for Dolly, and other creatures are bound to join the cloned menagerie in the coming year. Human cloning, on the other hand, may be technically fe
18、asible but legally and emotionally more difficult. Still, one day it will happen. The ability to reset body cells to a pristine, undeveloped state could give doctors exactly the same advantages they would get from stem cells: the potential to make healthy body tissues of all sorts, and thus to cure
19、disease. That could prove to be a true “miracle cure“. 21 The writer holds that the potential to make healthy body tissues will _ . ( A) aggravate moral issues of human cloning. ( B) bring great benefits to human beings. ( C) help scientists decode body instructions. ( D) involve employing surgical
20、instruments. 22 The word “rejuvenated“ (Para. 5) most probably means _ . ( A) modified. ( B) re-collected. ( C) classified. ( D) reactivated. 23 The research at the University of Wisconsin is mentioned to show _ . ( A) the isolation of stem cells. ( B) the effects of gene therapies. ( C) the advanta
21、ges of human cloning. ( D) the limitations of tissue replacements. 24 Which of the following is true according to the text? ( A) The principle of gene therapy is applicable to that of cloning. ( B) The isolation of stem cells is too difficult to be feasible. ( C) It is reasonable for all body instru
22、ctions to be activated. ( D) Cloned animals will eventually take control of the world. 24 What our society suffers from most today is the absence of consensus about what it and life in it ought to be; such consensus cannot be gained from societys present stage, or from fantasies about what it ought
23、to be. For that the present is too close and too diversified, and the future too uncertain, to make believable claims about it. A consensus in the present hence can be achieved only through a shared understanding of the past, as Homers epics informed those who lived centuries later what it meant to
24、be Greek, and by what images and ideals they were to live their lives and organize their societies. Most societies derive consensus from a long history, a language all their own, a common religion, common ancestry. The myths by which they live are based on all of these. But the United States is a co
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