GRE-97及答案解析.doc

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1、GRE-97及答案解析(总分：41.00，做题时间：90 分钟)一、SECTION 1(总题数：12，分数：21.00)1.Eli Whitneys cotton gin famously changed the face of the agricultural industry by greatly increasing productivity. Although the gin was enormously popular, Whitney himself struggled to make a profit from it. After receiving a patent for h

2、is invention, Whitney and his business partner opted to produce as many cotton gins as possible and to charge farmers a user fee instead of selling them outright. Farmers considered this fee unnecessary and exorbitant, and began manufacturing copies of the cotton gin instead. Because of a loophole i

3、n the patent law, the many lawsuits brought by Whitney and his partner against the farmers were fruitless. The duo finally agreed to license their cotton gins at a reasonable price. However, due to the costs of their legal battles, they were unable to make the fortune that Whitney had previously pre

4、dicted.According to the passage, which one of the following was an obstacle in implementing widespread use of Whitneys cotton gin?A. Whitneys reluctance to seek a patent for his cotton ginB. The high fees being charged to farmers for the use of Whitneys cotton ginC. The negative impact of Whitneys c

5、otton gin on the economy of the southD. Whitneys inability to profit from his inventionE. Whitneys reliance on a loophole in the patent law（分数：1.00）A.B.C.D.E.2.In the world of art, distinguishing the authentic piece from the forgery is not an easy feat and often requires the use of multiple experts.

6、 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 authenticated painti

7、ngs 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 nearly impossible to determi

8、ne 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 difficult to analyze, but ma

9、thematical 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.（分数：2.00）(1).At the time during year X when the difference between the price of ABC common stock and the price of XYZ common stock was at its greatest, the price of XYZ

10、 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 price of ABC and XYZ stock was the greatest, the price of ABC stock was approximately what

11、 percent of the price of XYZ stock?A. 25 B. 60 C. 70D. 140 E. 170（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 19917A. 10.4 B. 12.6 C. 14.0D. 16.5 E.

12、 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. ManufacturingC. Retail D. WholesaleE. Other（分数：1.00）A.B.C.D.E.(3).Of the retail sectors 1991 contribution to the arts, went to symphony orchestras and

13、（分数：1.00）A.B.C.D.E.It sounds like the premise 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, wit

14、h promising results. But the potential applications 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 memori

15、es to oblivion, such a drug could fundamentally 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 t

16、echnology of altering memories continues, so will 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 toA. describe the premise of a science fiction novelB. propose a remedy for tr

17、aumatic brain injuriesC. question certain medical researchD. admit to the failings of pharmaceutical innovationE. 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 applic

18、able to many types of traumatic situations.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-alter

19、ing drug.（分数：1.00）填空项 1:_(4).It can be inferred from the passage thatA. scientists have discovered a means by which human memories can be completely eliminatedB. only drugs that affect memory are morally ambiguousC. ethical debates are a predictable result of certain types of scientific research（分数：

20、1.00）A.B.C.3.In a crate of fruit that contained strawberries, blueberries, and raspberries, the ratio of the number of pints of strawberries to the number of pints of blueberries to the number of pints of raspberries was 6 to 4 to 5, respectively. If the crate contained a total of 45 pints of these

21、fruits, how many more pints of strawberries than blueberries were there in the crate?A. 2 B. 3 C. 4D. 5 E. 6（分数：1.00）A.B.C.D.E.4.If x+y=16, and if x2-y2=48, then x -y=A. 3 B. 4 C. 6D. 32 E. 36（分数：1.00）A.B.C.D.E.In Rembrandts day, many of his fellow painters portrayed their characters much like the i

22、dealized gods of Greek and Roman mythology. Rembrandt differed by painting people in a more realistic and humble 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 fit

23、tingly enhanced his work by the use of chiaroscuro, a painting technique where light striking the foregrounded 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 c

24、onformity.（分数：2.00）(1).The author of the passage is primarily concerned withA. defining the technical methods Rembrandt used in painting his various worksB. providing a brief memoir of Rembrandts motivations as a painterC. explaining how Rembrandt differentiated himself from other painters of his ti

25、meD. cataloging the individuals Rembrandt used as models in his worksE. contrasting the works of contemporary 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

26、 models for their paintings.B. Rembrandt achieved enhanced artistic effect through the use of a unique method.C. Rembrandt saw artistic value in subject matter outside the mainstream.（分数：1.00）A.B.C.5.In the world of art, distinguishing the authentic piece from the forgery is not an easy feat and oft

27、en requires the use 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 analyz

28、e digital images of 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 followi

29、ng?A. It is nearly 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.

30、 Art can be difficult 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.（分数：2.00）(1).In which season did Jagr earn the most money per game?A. 1994-1995 B. 1995-1996C. 1996-1997 D. 1997-1998E. 1998-199

31、9（分数：1.00）A.B.C.D.E.(2).In which season did Jagr average the most points per game?A. 1990-1991 B. 1995-1996C. 1996-1997 D. 1997-1998E. 1998-1999（分数：1.00）A.B.C.D.E.（分数：2.00）(1).The ratio of the number of male freshmen to the number of female sophomores is approximatelyA. 2 to 1 B. 3 to 1 C. 3 to 2D.

32、4 to 1 E. 5 to 3（分数：1.00）A.B.C.D.E.(2).Which of the following can be inferred from the tables? The number of males majoring in physical sciences is greater than the number of females majoring in that area. Students majoring in either social sciences or physical sciences constitute more than 50 perce

33、nt of the total enrollment. The ratio of the number of males to the number of females in the senior class is less than 2 to 1.A. only B. only C. and D. and E. and （分数：1.00）A.B.C.D.E.6.When 9 students took a zoology quiz with a possible score of 0 to 10 inclusive, their average (arithmetic mean) scor

34、e was 7.5. If a tenth student takes the same quiz, what will be the least possible average score on the quiz for all 10 students?A. 6.5 B. 6.75 C. 7.0D. 7.25 E. 7.5（分数：1.00）A.B.C.D.E.二、SECTION 2(总题数：8，分数：20.00)（分数：3.00）(1).To the nearest million, how many more students were enrolled in schoolboth pu

35、blic and private, prek-12in 1970 than in 1988?A. 3,000,000 B. 6,000,000 C. 10,000,000D. 44,000,000 E. 51,000,000（分数：1.00）A.B.C.D.E.(2).In 1988 there were 40,000,000 public school students in the United States, of whom 22% lived in the West. Approximately, how many public school students are projecte

36、d to be living in the West in 2008?A. 9,000,000 B. 12,000,000 C. 15,000,000D. 24,000,000 E. 66,000,000（分数：1.00）A.B.C.D.E.(3).If a and b are the lengths of the legs of a right tri-angle whose hypotenuse is 10 and whose area is 20, what is the value of (a +b.2?A. 100B. 120C. 140D. 180E. 200（分数：1.00）A.

37、B.C.D.E.Directions: The next questions are based on the content of the following passage. Read the passage and then determine the best answer choice for each question. Base your choice on what this passage states directly or implies, not on any information you may have gained elsewhere. For each of

38、Questions 6-10, select one answer choice unless otherwise instructed.Questions are based on the following passage.There can be no doubt that the emer-gence of the Negro writer in the post-warperiod stemmed, in part, from the fact thatLive he was inclined to exploit the opportunity to(5) write about

39、himself. It was more than that,however. The movement that has variouslybeen called the “Harlem Renaissance,“ the“Blank Renaissance,“ and the “New NegroMovement“ was essentially a part of the(10) growing interest of American literary circlesin the immediate and pressing social andeconomic problems. T

40、his growing interestcoincided with two developments in Negrolife that fostered the growth of the New(15) Negro Movement. These two factors, thekeener realization of injustice and theimprovement of the capacity for expression,produced a crop of Negro writers who con-stituted the “Harlem Renaissance.“

41、(20) The literature of the Harlem Renaissancewas, for the most part, the work of a race-conscious group. Through poetry, prose, andsong, the writers cried out against social andeconomic wrongs. They protested against(25) segregation and lynching. They demandedhigher wages, shorter hours, and better

42、con-ditions of work. They stood for full socialequality and first-class citizenship. The newvision of social and economic freedom that(30) they had did not force them to embrace theseveral foreign ideologies that sought to sinktheir roots in some American groups duringthe period.The writers of the H

43、arlem Renaissance,(35) bitter and cynical as some of them were,gave little attention to the propaganda of thesocialists and communists. The editors of theMessenger ventured the opinion that the NewNegro was the “product of the same world-(40) wide forces that have brought into being thegreat liberal

44、 and radical movements that arenow seizing the reins of power in all the civi-lized countries of the world.“ Such forcesmay have produced the New Negro, but the(45) more articulate of the group did not resortto advocating the type of political action thatwould have subverted American constitu-tional

45、 government. Indeed, the writers of theHarlem Renaissance were not so much(50) revolting against the system as they wereprotesting its inefficient operation. In thisapproach they proved as characteristicallyAmerican as any writers of the period.（分数：5.00）(1).Which of the following is implied by the s

46、tatement that the writers of the Harlem Renaissance “were not so much revolting against the system as they were protesting its inefficient operation“ (lines 49-51)?A. Black writers played only a minor part in protesting the injustices of the period.B. Left to itself, the system was certain to functi

47、on efficiently.C. Black writers in general were not opposed to the system as such.D. In order for the system to operate efficiently, blacks must seize the reins of power in America.E. Black writers were too caught up in aesthetic questions to identify the true nature of the conflict.（分数：1.00）A.B.C.D

48、.E.(2).With which of the following statements regarding the writers of the Harlem Renaissance would the author most likely agree?AThey needed to increase their commitment to international solidarity.BTheir awareness of oppression caused them to reject American society.CThey transformed their increas

49、ing social and political consciousness into art.DTheir art suffered from their overinvolvement in political crusades.ETheir detachment from their subject matter lessened the impact of their work.（分数：1.00）A.B.C.D.E.(3).The information in the passage suggests that the author is most likelyAa historian concerned with presenting socially conscious black writers of the period as loyal AmericansBa literary critic who questions the conclusions of historians about the Harlem RenaissanceCan educator involved in fostering creating writing programs