解析：选D。上文提到大人的榜样作用很重要，所以要记住：我们的孩子正看着(watch)我们……。

　　Ⅲ. 阅读理解

　　A

　　(2009年浙江温州检测)Sadness is unpleasant，and in a society where personal happiness is prized above all else，there is little tolerance for falling in despair. Especially now we’ve got drugs for getting rid of sad feelings—whether it’s after losing a job，the breakup of a relationship or the death of a loved one. So it’s no surprise that more and more people are taking them.

　　But is this really such a good idea? A growing number of voices from the world of mental health research are saying it isn’t. They fear that the increasing tendency to treat normal sadness as a disease is playing fast and loose (行为轻率). Sadness，they argue，serves a useful purpose—and if we lose it，we lose out. Yet many psychiatrists (精神病医生) insist not. Sadness has a nasty habit of turning into depression(抑郁症)，they warn. Even when people are sad for good reason，they should take drugs to make themselves feel better.

　　So who is right? Is sadness something we cannot live without or something horrible never to touch?

　　There are lots of ideas about why feeling sad should become part of human life. It may be a selfprotection strategy，as other primates (灵长类) also show signs of sadness. A losing monkey that doesn’t show sadness after it loses a fight may be seen as continuing to challenge the winning monkey—and that could result in death.

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