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.

Q6:

The primary purpose of the passage is to

答案是D 但是我无法排除B

请教大家意见!!