下半年北美GRE考试真题解析

2015年下半年北美GRE考试真题解析

写作

Issue

1.Write a response in which you discuss the extent to which you agree or disagree with the statement and explain your reasoning for the position you take. In developing and supporting your position, you should consider ways in which the statement might or might not hold true and explain how these considerations shape your position.

分析：大学应该指定所有的必修课程并且取消选修课程以便给学生提供一个明确的指导方向。

解析及提纲：

agree. 就像一般的人们一样，大学生们更喜欢遵照指导而不是自己做决策。

clear guidance给学生们带来的便利。

自己做决定时可能会出现的困难，学生这种倾向形成的原因。

学校本身的职责就是提供明确的导向。

2.Write a response in which you discuss which view more closely aligns with your own position and explain your reasoning for the

position you take. In developing and supporting your position, you should address both of the views presented. In most professions and academic fields, imagination is more important than knowledge.

分析：在很多行业和学术领域，想象力比知识更重要。

解析及提纲：disagree. 知识比想象力更重要。

1.在科学领域，知识具有绝对权威性;

2.在艺术和航天领域，想象力是知识的辅助，还是需要大量专业知识作为基础。

3.在政治领域，需要心理学知识和历史知识，无法单纯依靠想象力。

Argument

1."Of the two leading real estate firms in our town—Adams Realty and Fitch Realty—Adams Realty is clearly superior. Adams has 40 real estate agents; in contrast, Fitch has 25, many of whom work only part-time. Moreover, Adams' revenue last year was twice as high as that of Fitch and included home sales that averaged $168,000, compared to Fitch's $144,000. Homes listed with Adams sell faster as well: ten years ago I listed my home with Fitch, and it took more than four months to sell; last year, when I sold another home, I listed

it with Adams, and it took only one month. Thus, if you want to sell your home quickly and at a good price, you should use Adams Realty."

Write a response in which you examine the stated and/or unstated assumptions of the argument. Be sure to explain how the argument depends on these assumptions and what the implications are for the argument if the assumptions prove unwarranted.

分析与提纲：

找Adams卖房快，房价好。因为A是最好的，它有更高的年收入，更多的代理，它卖的房子平均价高。而且本人前后9年的经历也证明了这一点。

--论断很武断。找好的代理公司并一定能保证卖房快，房价好。房子本身的特点是最重要的。

--论断提供的证据不足以说明A更好。年收入高，但员工多，平均下来很可能工作效率低。而平均价格也没有说服力，大笼统，房子分类。

本人的经历忽视了一个很重要的问题，九年的时间，不仅房地产业会有很大变化，社会变化也会很大。科技的发展，社会需求的变化。另外他两处房子的差别。

结论：论断看起来似乎很有条理，证据也很多。但结论却很武断，也很不工平。要评价两家公司的业绩，除了年收外还应该包括很多内容比如

工作效率，对市场的了解等等。而要想更快更好地卖出房子，不仅要找一个合适的房产公司，还需要给自己的房子定好位

填空题

1. The cognitive flexibility of successful fictional detectives is often ____ by their cultural ambivalence: detectives' intellectual acumen, it seems, exists in direct proportion to their uneasy place in society.

A. spurned

B. spaded

C. spurred

D. matched

E. emaciated

答案：C

2. Professor Ramfield describes in his recent book publishing as dark as it is deep, even as one hidebound industry, indeed, it is facing a profound change in its product model, but is so (i)___ its past as to be (ii)____opportunities offered by technological change.

Blank (i)

A. indebted in

B. encumbered by

C. irrelevant with

Blank (ii)

D. unable to seize

E. capable of seeking

F. definite to circumven

答案：BD

短阅读

Few mathematical constructs seem as conceptually simple as that of randomness. According to the traditional definition, a number is random if it is chosen purely as the result of a probabilistic mechanism such as the roll of a fair die. Id their groundbreaking work regarding complexity and the limitations of formal systems, mathematicians Gregory Chaitin and A.N. Kolmogorov force us to consider this last claim more closely.

Consider two possible outcomes of throwing a fair die three times: first, 1, 6, and 2; second 3, 3, and 3. Now let us construct two three-member sets based on the results. Though the first set—{1,6,2}—intuitively seems more random than the second—{3,3,3}, they are each as likely to occur, and thus according to the accepted definition, must be considered equally random. This unwelcome result prompts Chaitin and Kolmogorov to suggest the need for a new standard of randomness, one that relies on the internal coherence of the set as opposed to its origin.

1. Which of the following best describes the organization of the passage as whole

A. A concept is introduced; a traditional definition is put forward; a thought experiment is described; a new definition is proposed; the traditional definition is amended as a result.

B. A concept is introduced; a traditional definition is supported by authorities; a thought experiment is described; the implications of the experiment are discussed.

C. A concept is introduced; a traditional definition is considered and rejected; a thought experiment is described; a new definition is proposed.

D. A concept is introduced; a traditional definition is called into question; a thought experiment is described; the implications of the experiment are discussed.

E. A concept is introduced; authorities are called in to reevaluate a definition; a thought experiment is described; the implications of the experiment are considered and rejected.

答案：C

数学

1.In a group of 60 people, the average (arithmetic mean) age of the 40 females is 60, and the average age of the 20 males is 70.

Column A

Average age of all 60 people

Column B

65

A.The quantity in Column A is greater

B.The quantity in Column B is greater

C.The two quantities are equal

D.The relationship cannot be determined from the information given

答案：B

解析：因为一共有60个人，40个人的平均年龄是60岁，20个人的平均年龄是70岁。所以这60个人的平均年龄为(40*60+20*70)/60=63.33.

63.33<65,所以B更大。所以选B。

2. Half of w is x，Half of y is w

w + x + y = 28

Column A

w

Column B

7

A.The quantity in Column A is greater

B.The quantity in Column B is greater

C.The two quantities are equal

D.The relationship cannot be determined from the information given

答案：A

解析：因为1/2w=x, 1/2y=w, w+x+y=28, 所以w+1/2w+2w=28, 所以w=8. 所以A为8，B为7. 所以选A.

3. An office has 6 employees. The manager must create a committee consisting of 3 employees.

Column A

Number of different committees possible

Column B

40

A.The quantity in Column A is greater

B.The quantity in Column B is greater

C.The two quantities are equal

D.The relationship cannot be determined from the information given

答案：B

解析：因为一共有6个员工，任选3个组成一个委员会，所以没有顺序，即C_6^3=(6*5*4)/(3*2*1)=20. 所以A为20，B为40，B更大，所以选择B.

4.A number, x, is randomly selected from the integers from 42 to 92 inclusive.

Column A

The probability that x is odd.

Column B

The probability that x is even.

A.The quantity in Column A is greater

B.The quantity in Column B is greater

C.The two quantities are equal

D.The relationship cannot be determined from the information given

答案：B

解析：因为整数的范围是42-92，所以一共有(92-42+1)=51个数字。又由于首尾两个数分别是42和92，均为偶数，所以一共会有26个偶数，和25个奇数，偶数会比奇数多一个，因此x为偶数的机会更大。所以选B.

5.Ten students wrote a test, and the distribution of scores is shown on the frequency table. If the average (arithmetic mean) score is 62, what is the value of x

A.62

B.65

C.71

D.76

E.83

答案：E

解析：因为4个学生的平均分数为62，所以总分为62*4=248, 所以x 为248-40-55-70=83. 所以选E.11.