Technology is now more a part of us than ever before―almost an of the human body at this point.A. expense B. exchange C. exception D. extension 题目和参考答案——青夏教育精英家教网—

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( ) 10. Technology is now more a part of us than ever before―almost an of the human body at this point.

A. expense B. exchange C. exception D. extension

10. D考查名词的用法。expense成本，费用；exchange 交换,交易；exception例外extension延伸。句意：技术如今比以往更多地成为我们的一部分，在这一点上，几乎可以说是人体的一种延伸。

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起作用的是你做了什么而不是你说了什么。

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A. generally B. initially C. extremely D. eventually

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打开电视或者翻开杂志，你经常会看到表现幸福、.和谐家庭的广告宣传。

Two recent studies have found that punishment is not the best way to influence behavior.

One showed that adults are much more cooperative if they work in a system based on rewards. Researchers at Harvard University in the United States and the Stockholm School of Economics in Sweden did the study.

They had about two hundred college students play a version of the game known as the Prisoner's Dilemma. The game is based on the tension between the interests of an individual and a group. The students played in groups of four. Each player could win points for the group，so they would all gain equally. But each player could also reward or punish each of the other three players. Harvard researcher David Rand says the most successful behavior proved to be cooperation. The groups that rewarded it the most earned about twice as much in the game as the groups that rewarded it the least. The study appeared last month in the journal Science.

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A. the game is called Prisoner's Dilemma

B. the less a group punished itself,the lower its earnings

C. adults are much more cooperative if rewarded

D. the game is introduced in the journal Science

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