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  3. Everybody loves a fat pay rise. Yet pleasure at your own can vanish if you learn that a colleague has been given a bigger one. I

Everybody loves a fat pay rise. Yet pleasure at your own can vanish if you learn that a colleague has been given a bigger one. I

admin2016-01-10  51
问题     Everybody loves a fat pay rise. Yet pleasure at your own can vanish if you learn that a colleague has been given a bigger one. Indeed, if he has a reputation for slacking(偷懒), you might even be outraged. Such behavior is regarded as "all too human", with the underlying assumption that other animals would not be capable of this finely developed sense of grievance(不满). But a study by Sarah Brosnan and Frans de Waal of Emory University in Atlanta, Georgia, which has just been published in Nature, suggests that it is all too monkey, as well.
    The researchers studied the behavior of female brown capuchin monkeys(僧帽猴). They look cute. They are good-natured, co-operative creatures, and they share their food tardily. Above all, like their female human counterparts, they tend to pay much closer attention to the value of " goods and services" than males.
    Such characteristics make them perfect candidates for Dr. Brosnan’s and Dr. de Waal’s study. The researchers spent two years teaching their monkeys to exchange tokens for food. Normally, the monkeys were happy enough to exchange pieces of rock for slices of cucumber(黄瓜). However, when two monkeys were placed in separate but adjoining chambers, so that each could observe what the other was getting in return for its rock, their behavior became markedly different.
    In the world of capuchins grapes are luxury goods(and much preferable to cucumbers). So when one monkey was handed a grape in exchange for her token, the second was reluctant to hand hers over for a mere piece of cucumber. And if one received a grape without having to provide her token in exchange at all, the other either tossed her own token at the researcher or out of the chamber, or refused to accept the slice of cucumber. Indeed, the mere presence of a grape in the other chamber(without an actual monkey to eat it)was enough to induce resentment in a female capuchin.
    The researches suggest that capuchin monkeys, like humans, are guided by social emotions. In the wild, they are a co-operative, group-living species. Such co-operation is likely to be stable only when each animal feels it is not being cheated. Feelings of righteous indignation(愤怒), 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 a sense of fairness evolved independently in capuchins and humans, or whether it stems from the common ancestor that the species had 35 million years ago, is, as yet, an unanswered question.  
What can we infer from the last paragraph?
选项 A、Monkeys can be trained to develop social emotions.
B、Human indignation evolved from an uncertain source.
C、Animals usually show their feelings openly as humans do.
D、Cooperation among monkeys remains stable only in the wild.
答案B
解析 推理题。最后一段末句指出，这种公平感是在僧帽猴和人类身上各自独立演化而成，还是因为3 500万年前他们有共同的祖先，这还是一个悬而未决的问题。B项就是这句话的改写，其中human indignation对应sense of fairness，uncertain source对应unanswered question。 因此B项正确。
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