American society is not nap (午睡) friendly. "In fact", says David Dinges, a sleep specialist at the University of Pennsylvania S

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问题    American society is not nap (午睡) friendly.  "In fact", says David Dinges, a sleep specialist at the University of Pennsylvania School of Medicine, "there’s even a prohibition against admitting we need sleep." Nobody wants to be caught napping or found asleep at work. To quote proverb: "Some sleep five hours, nature requires seven, laziness nine and wickedness eleven."
   Wrong. The way not to fall asleep at work is to take naps when you need them. "We have to totally change our attitude toward napping," says Dr. William Dement of Stanford University, the godfather of sleep research.
   Last year a national commission led by Dement identified an "American sleep debt" which one member said was as important as the national debt, the commission was concerned about the dangers of sleepiness: people causing industrial accidents or falling asleep while driving. This may be why we have a new sleep policy in the White House. According to recent reports, president Clinton is trying to take a half-hour snooze (打瞌睡) every afternoon.
   About 60 percent of American adults nap when given the opportunity. We seem to have "a mid-afternoon quiet phase" also called "a secondary sleep gate." Sleeping 15 minutes to two hours
in the early afternoon can reduce stress and make us refreshed. Clearly, we were born to nap.
   We Superstars of Snooze don’t nap to replace lost shut-eye or to prepare for a night shift. Rather, we "snack" on sleep, whenever, wherever and at whatever time we feel like it. I myself have napped in buses, cars, planes and on boats; on floors and beds; and in libraries, offices and museums.
The purpose of this article is to______.

选项 A、ware us of the wickedness of napping
B、explain the danger of sleepiness
C、discuss the side effects of napping
D、convince the reader of the necessity of napping

答案D

解析 本题属于文章的主旨题。作者在文章第一段指出:美国是一个对午睡不友好的社会,睡觉大多会被人们说成是不正常,不合情理。第二段的wrong标明作者的态度。第三段指出了睡眠少的危害以及引起这种危害的原因。而最后一段,作者更是用自身做法呼吁人们想睡就睡,所以该文章的目的就是D使读者相信午睡的必要性。A项的意思是“警告我们午睡是邪恶的”;B项的意思是“解释困倦的危险性”;C项的意思是“探讨午睡的副作用”。
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