【考研类试卷】考研英语(阅读)-试卷37及答案解析.doc
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1、考研英语(阅读)-试卷 37 及答案解析(总分:60.00,做题时间:90 分钟)一、Reading Comprehensio(总题数:6,分数:60.00)1.Section II Reading Comprehension(分数:10.00)_2.Part ADirections: Read the following four texts. Answer the questions below each text by choosing A, B, C or D.(分数:10.00)_Dieting, according to an old joke, may not actually
2、make you live longer, but it sure feels that way. Nevertheless, evidence has been accumulating since the 1930s that calorie restrictionreducing an animal“s energy intake below its energy expenditureextends lifespan and delays the onset of age-related diseases in rats, dogs, fish and monkeys. Such re
3、sults have inspired thousands of people to put up with constant hunger in the hope of living longer, healthier lives. They have also led to a search for drugs that mimic the effects of calorie restriction without the pain of going on an actual diet. Amid the hype(intensive publicity), it is easy to
4、forget that no one has until now shown that calorie restriction works in humans. That omission, however, changed this month, with the publication of the initial results of the first systematic investigation into the matter. This study, known as CALERIE(Comprehensive Assessment of Long-term Effects o
5、f Reducing Intake of Energy), was sponsored by America“s National Institutes of Health. It took 48 men and women aged between 25 and 50 and assigned them randomly to either a control group or a calorie-restriction regime. Those in the second group were required to cut their calorie intake for six mo
6、nths to 75% of that needed to maintain their weight. The CALERIE study is a landmark in the history of the field, because its subjects were either of normal weight or only slightly overweight Previous projects have used individuals who were clinically obese, thus confusing the unquestionable benefit
7、s to health of reducing obesity with the possible advantages of calorie restriction to the otherwise healthy. At a molecular level, CALERIE suggests these advantages are real. For example, those on restricted diets had lower insulin resistance and lower levels of low-density lipoprotein cholesterol.
8、 They showed drops in body temperature and blood-insulin levelsboth phenomena that have been seen in long-lived, calorie-restricted animals. They also suffered less oxidative damage to their DNA Eric Ravussin, of Louisiana State University in Baton Rouge, who is one of the study“s authors, says that
9、 such results provide support for the theory that calorie restriction produces a metabolic adaptation over and above that which would be expected from weight loss alone. Nevertheless, such metabolic adaptation could be the reason why calorie restriction is associated with longer lifespans in other a
10、nimalsand that is certainly the hope of those who, for the past 15 years, have been searching for ways of triggering that metabolic adaptation by means other than semi-starvation.(分数:10.00)(1).The evidence since the 1930s has inspired people to(分数:2.00)A.live longer and healthier.B.invent a calorie-
11、restricting drug.C.believe in calorie restriction.D.get rid of constant hunger.(2).Which of the following is true about the CALERIE study?(分数:2.00)A.It proves that calorie restriction works in humans.B.It has 24 male subjects and the same number of female ones.C.It is the first investigation into th
12、e effects of calorie restriction.D.It lasted for six months and had the final results published.(3).What makes the CALERIE study a significant one in the field?(分数:2.00)A.It used the subjects of both genders and different ages.B.It selected people of normal weight as the subjects.C.It rectified the
13、misconception of dieting.D.It was systematic in research method and based on evidence.(4).By saying “CALERIE suggests these advantages are real(Line 1, Paragraph 4)“, the author is dealing with the results of the study from a(分数:2.00)A.general view.B.subjective view.C.macro view.D.micro view.(5).It
14、can be inferred from the last paragraph that(分数:2.00)A.the metabolic adaptation solely resulted from weight loss.B.the metabolic adaptation can be achieved by dieting.C.semi-starvation was seen as an effective means for weight loss.D.people had no idea about the metabolic adaptation before CALERIE.R
15、esearchers in the field of artificial intelligence have long been intrigued by games, and not just as a way of avoiding work. Games provide an ideal setting to explore important elements of the design of cleverer machines, such as pattern recognition, learning and planning. They also hold out the ta
16、ntalizing possibility of fame and fortune should the program ever beat a human champion. Ever since the stunning victory of Deep Blue, a program running on an IBM supercomputer, over Gary Kasparov, then world chess champion, in 1997, it has been clear that computers would dominate that particular ga
17、me. Today, though, they are pressing the attack on every front. There is one game, however, where humans still reign supreme Go. Yet here too their grip is beginning to loosen. Go was invented more than 2,500 years ago in China. It is a strategic contest in which two players take turns to place ston
18、es on the intersections of a grid with 19 lines on each side. Each player tries to stake out territory and surround his opponent. The rules are simple but the play is extraordinarily complex. During a game, some stones will “die“, and some will appear to be dead but spring back to life at an ill-tim
19、ed moment. It is often difficult to say who is winning right until the end. Deep Blue beat Mr. Kasparov using the “brute force“ technique. Rather than search for the best move in a given position, the computer considers all white“s moves, and all black“s possible replies, and all white“s replies to
20、those replies, and so on for, say, a dozen turns. The resulting map of possible moves has millions of branches. The computer combs through the possible outcomes and plays the one move that would give its opponent the fewest chances of winning. Unfortunately, brute force will not work in Go. First, t
21、he game has many more possible positions than chess does. Second, the number of possible moves from a typical position in Go is about 200, compared with about a dozen in chess. Finally, evaluating a Go position is fiendishly difficult. The fastest programs can assess just 50 positions a second, comp
22、ared with 500,000 in chess. In the past two decades researchers have explored several alternative strategies with indifferent results. Now, however, programmers are making impressive gains with a technique known as the Monte Carlo method. Given a position, a program using a Monte Carlo algorithm con
23、templates every move and plays a large number of random games to see what happens. If it wins in 80% of those games, the move is probably good. Otherwise, it keeps looking. The result is a new generation of fast programs that play particularly well on small versions of the Go board.(分数:10.00)(1).Acc
24、ording to Paragraph 1, computer games could(分数:2.00)A.promote the researches of human intelligence.B.help researchers avoid work.C.serve to improve the program designing.D.bring fame and fortune to the human champion.(2).The victory of Deep Blue shows that(分数:2.00)A.the chess game is too simple for
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