单选题 {{B}}第三篇{{/B}}
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 a 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 a important as the national debt. The commission was concerned about the dangers of sleepiness people causing industrial accidents of failing asleep while driving. This may be why we have a new sleep policy in the Whiter 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 shuteye 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.
单选题 It is commonly accepted in American society that too much sleep is ______.
【正确答案】 B
【答案解析】根据第一段末句，有人睡5小时，生物本能需要睡7小时，懒惰的入睡9小时，不正常的人睡11小时，多睡不合情理。A为答案。注意wickedness在这里指一种社会渣滓，而不是罪犯，故不能选B。
单选题 The research done by the Dement Commission shows that Americans ______.
【正确答案】 C
【答案解析】Dement Commission所做研究结果出现在第三段，表明美国入睡眠少了，对他们健康不利。与C一致。
单选题 The purpose of this article is to ______.
【正确答案】 D
【答案解析】第一段说美国是一个不喜欢午睡的社会；第二段作者认为应该午睡，不睡是错误的；第三段指出睡眠少了的危害以及引起这些危害的原因；最后一段作者进一步表明自己的看法，呼吁人们想睡就睡。A、B与文章主旨不合。 side effect意为副作用，C也与文章意思不符，因此选D。
单选题 The "American sleep debt" (Para. 3) is the result of ______.
【正确答案】 A
【答案解析】要求判断“美国入睡眠不够”是由何种原因产生的。根据文章第一段第二句以及第二段第一句可以看出：是美国人传统的睡眠观念有问题。A为答案。
单选题 The second sentence of the last paragraph tells us that it is ______.
【正确答案】 D
【答案解析】这句的意思是我们在睡眠中得到补偿(snack原意是快餐，这里引用为便捷的补给)，任何时候、任何地方想睡就睡。所以与D“我们感到需要时打瞌睡是很自然的”意思一致。