GWD-7-6

柿子头

Q6 to Q9:

      For many years, theoretical

       economists characterized humans

       as rational beings relentlessly bent

Line       on maximizing purely selfish reward.

  (5)      Results of an experimental economics

study appear to contradict this view,

however.  In the “Ultimatum Game,”

two subjects, who cannot exchange

information, are placed in separate

(10)      rooms.  One is randomly chosen to

propose how a sum of money, known

to both, should be shared between

them; only one offer, which must

be accepted or rejected without

(15)      negotiation, is allowed.

      If, in fact, people are selfish and

rational, then the proposer should offer

the smallest possible share, while the

responder should accept any offer,

(20)      no matter how small:  after all, even

       one dollar is better than nothing.  In

       numerous trials, however, two-thirds

of the offers made were between

40 and 50 percent; only 4 percent

(25)      were less than 20 percent.  Among

responders, more than half who were

offered less than 20 percent rejected

the offer.  Behavior in the game did not

appreciably depend on the players’

(30)      sex, age, or education.  Nor did the

amount of money involved play a

significant role:  for instance, in trials

       of the game that were conducted in

Indonesia, the sum to be shared was

(35)    as much as three times the subjects’

average monthly income, and still

responders refused offers that they

deemed too small.

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Q6:

The primary purpose of the passage is to

              

provide evidence in support of the view that human beings are essentially rational and selfish

use a particular study to challenge the argument that the economic behavior of human beings may be motivated by factors other than selfishness

compare certain views about human nature held by theoretical economists with those held by experimental economists

describe a study that apparently challenges theoretical economists’ understanding of human economic behavior

suggest that researchers may have failed to take into account the impact of certain noneconomic factors in designing a study of human economic behavior

请问B怎么不对，答案是D。

rakesun

B中有other than，可能LZ没注意。这样B说的观点实际上是作者的观点，他不可能challenge自己的观点的