GRE-4及答案解析.doc

1、GRE-4及答案解析(总分：53.00，做题时间：90 分钟)一、BSECTION 1/B(总题数：7，分数：29.00)Average U.S. apple prices by consumption2001 2002 2003 2004All sales (cents per pound) 15.80 18.90 20.90 15.80Fresh consumption (cents per pound) 22.90 25.80 29.40 21.70All processing (dollars per ton) 108.00130.00131.00107.00Canned (dolla

2、rs per ton) 139.00161.00154.00149.00Juice and cider (dollars per ton) 83.40 104.00103.0073.00Frozen (dollars per ton) 139.00175.00173.00172.00Dried (dollars per ton) 84.70 108.00107.0077.30Data from U.S. Apple Association www. usapple, org.（分数：3.00）(1).Comparing 2001 to 2003 what is the approximate

3、percentage change in value of the apple crop? A. increase of 25%B. decrease of 25% C. increase of 6%D. decrease of 6% E. increase of 12%（分数：1.00）A.B.C.D.E.(2).Which is worth the most? A. 25% of the 2001 crop sold for juice B. 10% of the 2002 crop sold for canning C. 5% of the 2003 crop sold for free

4、zing D. 15% of the 2004 crop sold dried E. 1% of the 2001 crop sold fresh（分数：1.00）A.B.C.D.E.(3).George earned 80, 85 and 90 on the first three tests in his geography class. Because he didnt have time to study, he decides to guess randomly on the final test. That test has ten true-false questions, ea

5、ch worth 10 points. What is the probability his final average is more than 85? （分数：1.00）A.B.C.D.E.CORPORATE SUPPORT FOR THE ARTS BY SECTOR IN 1988 AND 1991（分数：3.00）(1).Approximately how many million dollars more did the wholesale sector contribute to the arts in 1988 than in 19917 A. 10.4 B. 12.6 C.

6、 14.0 D. 16.5 E. 19.2（分数：1.00）A.B.C.D.E.(2).From 1988 to 1991 which corporate sector decreased its support for the arts by the greatest dollar amount? A. Services B. Manufacturing C. Retail D. Wholesale E. Other（分数：1.00）A.B.C.D.E.(3).Of the retail sectors 1991 contribution to the arts, went to symph

7、ony orchestras and （分数：1.00）A.B.C.D.E.（分数：7.00）(1).If the average vehicle occupancy rate for commuters to County X were to increase to 2.8, what would be the approximate percent increase in the occupancy rate? A. 46% B. 54% C. 87% D. 115% E. 215%（分数：1.00）A.B.C.D.E.(2).If the total number of commuter

8、s to County W is twice the number to County Z, and if the average number of vehicles that transport commuters daily to County W is 30,000, what is the approximate average number of vehicles that transport commuters daily to County Z? A. 12,000 B. 15,000 C. 18,000 D. 27,000 E. 36,000（分数：1.00）A.B.C.D.

9、E.(3).If x+y=16, and if x2-y2=48, then x -y= A. 3 B. 4 C. 6 D. 32 E. 36（分数：1.00）A.B.C.D.E.(4).If a and b are the lengths of the legs of a right triangle whose hypotenuse is 10 and whose area is 20,what is the value of (a +b.2? A. 100 B. 120 C. 140 D.180 E.200（分数：1.00）A.B.C.D.E.(5).A developer has la

10、nd that has x feet of lake frontage. The land is to be subdivided into lots, each of which is to have either 80 feet or 100 feet of lake frontage. If （分数：1.00）A.B.C.D.E.(6).Which of the following sets of numbers has the greatest standard deviation? A. 2, 3, 4 B. 2.5, 3, 3.5 C. 1, 1.25, 1.5 D. -2, 0,

11、 2 E. -20, 21, 21.5（分数：1.00）A.B.C.D.E.(7).Researchers at the Shimizu Institute in Japan believe it is possible to terraform Mars by making use of the planets own resources and by introducing genetically altered life from Earth. They hope these actions will speed up the terraforming process, not just

12、 by adapting Mars to support Earth-life, but also by adapting Earthlife to exist on Mars. These experts think they can use the Martian geology itself to jump-start the planet. The theory is that detonation of thermonuclear devices deep in the Martian mountains will trigger eruptions of hot magma tha

13、t would melt the frozen atmosphere, thereby releasing the components necessary for life. Which of the following, if true, would most weaken the experts theory as explained in the last two sentences? A. Martian mountains are well-situated and easily accessible by remote mobility devices. B. Similar e

14、ruptions of magma on Earth have demonstrated the ability to enable life in hostile underwater environments. C. Mars frozen atmosphere lacks the critical components necessary for life. D. Even if scientists could terraform Mars, the planet would eventually have all the same problems as Earth. E. Ther

15、monuclear devices would be very dangerous to send to Mars.（分数：1.00）A.B.C.D.E.（分数：5.00）(1).In which season did Jagr earn the most money per game? A. 1994-1995 B. 1995-1996 C. 1996-1997 D. 1997-1998 E. 1998-1999（分数：1.00）A.B.C.D.E.(2).In which season did Jagr average the most points per game? A. 1990-1

16、991 B. 1995-1996 C. 1996-1997 D. 1997-1998 E. 1998-1999（分数：1.00）A.B.C.D.E.(3).In a normal distribution, 68% of the scores lie within one standard deviation of the mean. If the SAT scores of all the high school juniors in Center City followed a normal distribution with a mean of 500 and a standard de

17、viation of 100, and if 10,200 students scored between 400 and 500, approximately how many students scored above 600? A. 2,400 B. 4,800 C. 5.100 D. 7,200 E. 9,600（分数：1.00）A.B.C.D.E.(4).There are 100 people on a line. Aviva is the 37th person and Naomi is the 67th person. If a person on line is chosen

18、 at random, what is the probability that the person is standing between Aviva and Naomi? （分数：1.00）填空项 1:_(5).How many students are either juniors or males or both? A. 678 B. 766 C. 948 D. 1,130 E. 1,312（分数：1.00）A.B.C.D.E.（分数：4.00）(1).At the time during year X when the difference between the price of

19、 ABC common stock and the price of XYZ common stock was at its greatest, the price of XYZ common stock was approximately what percent of the price of XYZ common stock and ABC common stock combined? A. 16% B. 30% C. 36% D. 42% E. 103%（分数：1.00）A.B.C.D.E.(2).At the time during year X when the aggregate

20、 price of ABC and XYZ stock was the greatest, the price of ABC stock was approximately what percent of the price of XYZ stock? A. 25 B. 60 C. 70 D. 140 E. 170（分数：1.00）A.B.C.D.E.(3).In the world of art, distinguishing the authentic piece from the forgery is not an easy feat and often requires the use

21、 of multiple experts. Millions of dollars can be at stake, yet even experts can be fooled. However, a recent discovery has introduced a new resource for galleries and other groups seeking to establish the origins of their paintings: mathematicians. Math experts were able to analyze digital images of

22、 authenticated paintings where they found consistent differences in paint texture. This consistency suggests that each artist has a unique style of brush stroke that cannot be completely duplicated. In the first two sentences of the passage, the author suggests which of the following? A. It is nearl

23、y impossible to determine whether a painting is authentic or fake without the use of math. B. Even if multiple experts from various fields analyze a painting, it is not always possible to determine its authenticity. C. New discoveries in art always lead to a greater degree of truth. D. Art can be di

24、fficult to analyze, but mathematical models can help to find the truth. E. Mathematicians have a great degree of expertise in analyzing art.（分数：1.00）A.B.C.D.E.(4).In many Western European nations, the law is seen as rigid and not open to interpretation. This rigidity grants a consistency to question

25、s of law that many would argue is absent in other, more flexible systems. The European construction of law provides litigants with a clear picture of how a case will be decided. All parties involved are certain how judges will rule on issues. It is simple-judges will strictly follow the law. This si

26、mple fact, that the law will not change from one situation to another, allows for court systems in Western Europe to process cases efficiently and cuts down on the amount of frivolous lawsuits. It is useless for an individual to attempt a case if he knows in advance that the law is not in his favor.

27、 In the passage, the author is primarily concerned with A. arguing for a universal application of Western European legal practices B. decrying the rigidity and constancy of Western European legal practices C. describing the potential benefits of Western European legal systems D. defining the pros an

28、d cons of various legal systems E. denouncing European law for its anti-consumer bias（分数：1.00）A.B.C.D.E.In Rembrandts day, many of his fellow painters portrayed their characters much like the idealized gods of Greek and Roman mythology. Rembrandt differed by painting people in a more realistic and h

29、umble manner. He used himself, his family members, and even beggars as models. He viewed these individuals as being just as worthy of immortalization in art as mythological figures. He also fittingly enhanced his work by the use of chiaroscuro, a painting technique where light striking the foregroun

30、ded figures dramatically contrasts with a darkened background. Rembrandt reflected his paintings by remaining true to his singular artistic vision and casting his own light on the darkness of conformity.（分数：3.00）(1).The author of the passage is primarily concerned with A. defining the technical meth

31、ods Rembrandt used in painting his various works B. providing a brief memoir of Rembrandts motivations as a painter C. explaining how Rembrandt differentiated himself from other painters of his time D. cataloging the individuals Rembrandt used as models in his works E. contrasting the works of conte

32、mporary painters to the works of Rembrandt（分数：1.00）A.B.C.D.E.(2).The passage supports which of the following statements about Rembrandt? A. Most of Rembrandts contemporaries avoided the use of humble models for their paintings. B. Rembrandt achieved enhanced artistic effect through the use of a uniq

33、ue method. C. Rembrandt saw artistic value in subject matter outside the mainstream.（分数：1.00）A.B.C.(3).If q workers can paint a house in d days, how many days will it take q+2 workers to paint the same house, assuming all workers paint at the same rate? （分数：1.00）A.B.C.D.E.It sounds like the premise

34、for a science fiction novel, but scientists are today developing a drug that could eliminate traumatic events from our memories. Thus far the research is focused on altering memories immediately following one particular type of trauma, car accidents, with promising results. But the potential applica

35、tions of the research are far more wide reaching and morally ambiguous. On one hand, such a drug could provide a breakthrough in the treatment of post-traumatic stress disorder in war veterans and rape victims. On the other hand, by relegating our memories to oblivion, such a drug could fundamentall

36、y change our sense of self and personal history. It is unclear how the human brain stores memories, and much is unknown about why painful memories of traumatic events come back to haunt some and not others. But one thing is certain-as research into the technology of altering memories continues, so w

37、ill the ethical debates on whether this pharmaceutical innovation falls outside the spectrum of appropriate medical interventions.（分数：4.00）(1).The main point of the passage is to A. describe the premise of a science fiction novel B. propose a remedy for traumatic brain injuries C. question certain m

38、edical research D. admit to the failings of pharmaceutical innovation E. reject the concept of drug trials（分数：1.00）A.B.C.D.E.(2).Which of the following can be inferred from the passage regarding research into the memory-altering drug? A. It is currently applicable to many types of traumatic situatio

39、ns. B. Research is ongoing, and the treatment remains controversial. C. Our sense of self as well as our personal history is essentially static.（分数：1.00）A.B.C.(3).Select the sentence that mentions a specific moral dilemma resulting from the use of a memory-altering drug.（分数：1.00）填空项 1:_(4).It can be

40、 inferred from the passage that A. scientists have discovered a means by which human memories can be completely eliminated B. only drugs that affect memory are morally ambiguous C. ethical debates are a predictable result of certain types of scientific research（分数：1.00）A.B.C.D.E.二、BSECTION 2/B(总题数：7

41、，分数：24.00)Ernest Hemingways novel, The Sun Also Rises, has frequently been treated as a novel of the Lost Generation-a group of young American expatriate writers living in Paris who came of age during World War I and established their reputations in the 1920s. They considered themselves “lost“ becau

42、se their inherited values could not operate in the postwar world and they felt spiritually alienated from a country that they considered hopelessly provincial and emotionally barren. More broadly, the Lost Generation represented the World War I American generation. This approach to The Sun Also Rise

43、s has become something of a critical clich6. Hemingway described the novel as less about the life of postwar expatriates than about the rhythms of nature as an expression of eternity.（分数：2.00）(1).The passage suggests that Hemingways novel is thought to display which of the following qualities? A. An

44、 attempt to reconcile nature with the philosophical concept of eternity. B. A description of the post-World War I expatriate experience. C. A diatribe against the organized religion of Hemingways day.（分数：1.00）A.B.C.(2).The passage addresses which of the following issues related to Hemingways depicti

45、on of the Lost Generation? A. Contemporary Parisians were frequently at odds with expatriate Americans because their wartime experiences were radically different. B. Organized religion was ill-equipped to address the needs of post-war America. C. Post-war Americans sometimes lived abroad as a respon

46、se to their feelings of alienation in their home country. D. Members of the Lost Generation frequently felt lost because they were unable to afford passage home. E. Literary tropes such as nature and eternity are more compelling than the stories of individual characters.（分数：1.00）A.B.C.D.E.UQuestions

47、 /U: See the graphs on the fol.-lowing page for information to answer the questions.Adult education participation rates in the past 12 months: 1991 and 1995（分数：3.00）(1).Each of the following is a valid conclusion from the graphs and the fact that the population of the United States was greater in 19

48、95 than in 1991 EXCEPT A. In 1991, adults whose highest degree was at least a bachelors degree were more than twice as likely to participate in adult educa-tion than those whose highest educational attainment was a high school diploma or GED (high school equivalency diploma B. On a percentage basis, from 1991 to 1995, the greatest increase in the adult education par-ticipation rate was among those adults whose highest educational attainment was grades 9-12, without earning a high school diploma. C. In 1995, more people participated in adult edu-cation programs than in 1991. D. From 1991 to !9