事实细节题二
原文 The researchers suggest that capuchin monkeys，like humans，are guided by social emotions.In the wild，they are a co-operative，group living species.Such cooperation is likely to be stable only when each animal feels“is not being cheated.Feelings of righteous indignation，it seems，are not the preserve of people alone.Refusing a lesser reward completely makes these feelings abundantly clear to other members of the group.However，whether such s sense of fairness evolved independently in capuchins and humans，Or whether“stems from the common ancestor that the species had 35 million years ago，is，as yet，an unanswered question。
题目 Dr. Brosnan and Dr. de Waal have eventually found in their study that the monkeys
A.prefer grapes to cucumbers。
B.can be taught to exchange things。
C.will not be co-operative if feeling cheated。
D.are unhappy when separated from others。(2005--24)解答 原文的提示信息包括：1)the researchers 2)suggest。题干中的Dr. Brosnan和Dr. de Waal表明他们是researchers。原文说“研究人员说，猴子和人一样，也是有社会情感的。在 野外，他们是非常合作的群居性动物。这种合作只有在每一个成员都感到不被欺骗时才会稳定”。而问题是“两个博士的研究最终发现猴子_____”。C选项说“如果感到被骗就不会合作”，正是从另外一个角度叙述原文内容。重现的关键词汇是co-operative和feeling cheated。
责任编辑：小草
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