2009职称英语真题理工类B级真题：完形填空

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第6部分：完形填空（第51～55题，每题1分，共15分）

下面的短文有15处空白，请根据短文内容为每处空白确定一个最佳选项。

Taking a Nap during the Day

Medical experts say most Americans do not get enough sleep. They say more

Americans need to　　（51）　　for a short period in the middle of the day. They are

advising people to sleep lightly　　（52）　　continuing with other activities.

One study earlier this year found that persons who sleep for a few minutes during

the day were less likely to die of　　（53）　　disease. The study followed more than

2，300 Greek adults　　（54）　　about six years. Adults who rested for half an hour

at least three times a week had a 37 percent lower　　（55）　　of dying from heart disease than those who did not nap.

Study organizers said the strongest　　（56）　　was in working men. They said

naps might improve health by mitigating （减低） tension　　（57）　　by work.

Some European and Latin American businesses have supported the idea of　　（58）

for many years. They urge （催促） people to　　（59）　　work， go home and have a nap before returning. In the United States， some companies let workers rest briefly in their offices. They believe this reduces mistakes and accidents， and also　　（60）　　the amount of work a person can do.

Sleep experts say it is likely that people　　（61）　　more mistakes at work

than at other times. They say people should not carry out important duties　　（62）　they feel sleepy. And they say the best thing to do is to take a nap.

About twenty minutes of rest is all you　　（63）　　。 Experts say this provides extra

energy and can increase your　　（64）　　until the end of the day. But experts　　（65）　　 that a nap should last no more than twenty to thirty minutes. A longer nap will put the body into deep sleep and waking up will be difficult.

51　A work B wait C live D rest

52　A between B before C besides D during

53　A heart B brain C mind D liver

54　A on B at C for D with

55　A risk B end C order D part

56　A view B argument C protest D evidence

57　A reduced B broken C caused D sensed

58　A napping B walking C working D learning

59　A repeat B improve C change D leave

60　A increases B corrects C repeats D realizes

61　A take B make C do D bring

62　A because B when C although D since

63　A forget B hope C need D admire

64　A position B pressure C demand D effectiveness

65　A warn B see C doubt D promise