题目内容
12.No one knows why we sleep,but it's certain that we need to.People who are prevented from sleeping begin to suffer obvious effects after a few days-they think less clearly,and they fall asleep during the working hours; some may have hallucinations(幻觉).?There are no rules about sleep.Generally speaking,grown-ups sleep about 7and a half hours each night and probably more than 60per cent get between seven and eight hours.But perhaps eight per cent are quite happy with 5hours or less,and four per cent or so find that they want ten hours or more.If you feel all right,you're probably getting enough sleep.The important thing is not to worry how much other people get-their needs may be different.Exercise doesn't seem to increase the need for sleep-office workers,for example,sleep for about as long as people doing physically active work.?
Children sleep more than grown-ups-perhaps 14to 18hours soon after birth,going down to grown-up levels by early teenage.Sleep patterns also tend(倾向) to be different in the elderly,who may sleep less at night than they did when younger,find sleep getting more broken,and often make it a rule to sleep during the daytime.
67.According to the passage,some people are unable to think clearly becauseC.
A.they have hallucinations
B.they feel sleepy during the working hours
C.they don't have enough sleep
D.they are certain to be kept from going to bed
68.Which of the following is TRUE?B
A.All grown-ups must have at least eight-hour sleep.
B.Most of grown-ups sleep for seven or eight hours.
C.Quite a few people need only 5hours or less for them to sleep.
D.No grown-ups sleep more than ten hours.
69.Whether you have got enough sleep is judged byD.
A.how many hours you have slept
B.how many hours you need to sleep
C.whether you do exercise and physical work
D.whether you feel fresh and energetic
70.According to the passage,a boy of 14years old sleepsA.
A.as long hours as a grown-up
B.much longer hours than a grown-up
C.for 14hours each night
D.for less than 8hours per night.
分析 睡眠对我们是非常重要的,睡眠不足会带来很多的问题,文章就不同的年龄阶段的睡眠时间和模式进行说明.
解答 67-70.CBDA
67题答案:C细节题:从文章第一段的句子:People who are prevented from sleeping begin to suffer obvious effects after a few days-they think less clearly,and they fall asleep during the working hours; some may have hallucinations(幻觉).?睡眠被阻止的人几天后就开始遭受明显的影响了--他们思考不清楚、工作时睡觉、有些人还有幻觉.可知一些人不能清楚的思考是因为没有足够的睡眠,故本题答案为C选项.
68题答案:B细节题:从文章第二段的句子:There are no rules about sleep.Generally speaking,grown-ups sleep about 7 and a half hours each night and probably more than 60 per cent get between seven and eight hours.(睡眠没有规则.总的来说成人每晚睡7.5个小时而且有可能超过60%的人能睡到7-8个小时).可知大部分成年人的睡眠是7到8小时,故本题答案为B选项.
69题答案:D细节题:从文章第二段的句子:If you feel all right,you're probably getting enough sleep.(如果你感觉很好,你就可能获得了足够的睡眠).可知是否有足够的睡眠是通过是否恢复体力,精力充沛判断的,故本题答案为D选项.
70题答案:A细节题:从文章第三段的句子:Children sleep more than grown-ups-perhaps 14 to 18 hours soon after birth,going down to grown-up levels by early teenage.刚出生的孩子睡眠时间比成人都长--可能是14-18个小时,到了青年早期(13-15岁左右)睡眠时间下降到成人水平.可知一个14岁的男孩睡的时间和成年人一样长,故本题答案为A选项.
点评 本文是一篇科教类阅读,题目涉及多道细节理解题,做题时结合原文和题目有针对 性找出相关语句进行仔细分析,结合选项选出正确答案.推理判断也是要在抓住关键句子的基础上合理的分析才能得出正确的答案.
