题目内容
阅读理解
There is no living creature that does not need sleep or complete rest every day.
If you want to know why, just try going without sleep for a long period of time I You will discover that your mind and body would easily be made angry and find it hard to think clearly or bring your attention on your work . So sleep is quite simply the time when the cells (细胞)of your body recover from the work of the day and build up supplies of energy for the next period of activity.
One of the things we all know about sleep is that we are unconscious(无知觉的)in sleep. We do not know what is going on around us. But that does not mean the body stops all the activities. The necessary organs(器官)continue to work during sleep, but most of the body functions (功能)are slowed down .
Your body temperature becomes lower when you are sleeping, which is the reason why people go to steep under some kind of covers. And even though you are unconscious, many of your reflexes(反应能力)still work. For example, if someone touches your foot slightly, you will put it away in your sleep, or even brush a fly from your forehead. You do these things without knowing it.
1.If a man did not sleep for a long time, ________.
[ ]
A.his mind would become tired but his body could work properly
B.It would be hard to make him angry
C.he would not think clearly or bring his attention on his work
D.he would become tired out but could keep on working
2.Sleep can not ________.
[ ]
A.make your body recover
B.build up your strength
C.add your cells
D.be helpful to your mind
3.When you are asleep, ________.
[ ]
A.it is hard for you to know what is going on around
B.you stop all the activities
C.your necessary organs stop working
D.your body functions are all slowed down
4.According to the text, we know that ________.
[ ]
A.when a person is sleeping, his body temperature becomes lower
B.in someone's sleep, he knows nothing except for his sleeping
C.it's possible for someone to brush a fly from his forehead with conscious in his sleep
D.one can sleep so deeply that even your touching his foot can not cause his reflex
解析:
1.C 导解:由第二段的叙述可知. 2.C 导解:从第二段结尾句可知:睡眠可恢复细胞的活力,但不能增加细胞. 3.A 导解:由第三段可知. 4.A 导解:阅读最后一段可知:睡眠状态下,人的体温降低. |
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