题目：【阅读理解】

   There is no 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. You will discover that your mind and body would become too tired to work properly. You would become irritable and find it hard to think clearly or concentrate on your work. So sleep is quite simply the time when the cells 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 in sleep. We do not know what is going on around us. But that doesn't mean the body stops all activity. The important organs continue to work during sleep, but most of the body functions are slowed down.

    For example, our breathing becomes slower and deeper. The heart beats more slowly, and the blood pressure is lower. Our arms and legs become limp(柔软的) and muscles are at rest. It would be impossible for our body to relax to such an extent if we were awake. So sleep does for us what the most quiet rest can not do.

    Your body temperature becomes lower when you are asleep, which is the reason people go to sleep under some kind of covers. And even though you are unconscious , many of your reflexes(反射动作) still work. For instance, if someone tickles(使觉得痒) your foot , you will put it away in your sleep, or even brush a fly from your forehead. You do these things without knowing it.

【问题】In the clause “ . . .that we are unconscious in sleep" ( Para. 3) ,the word "unconscious" means              . 

A. untiring 

B .unmoved

C. quiet 

D. not knowing what is happening around

【答案】D

【考情点拨】词语理解题。

【应试指导】本句出现于文章的第三段第一句，接下来的一句是对unconscious 一词的进一步解释，即not knowing what is going on around us.

点击进入成考专升本英语考试模拟试题在线题库做题>>

小编推荐：全国成人高校招生统考科目依据教育部颁布的《全国各类成人高等学校招生复习考试大纲》(2011年版)命题，点此查看》》更多专升本英语模拟试题

诚为径教育成考频道为广大考生提供一个交流的平台，有兴趣一起学习互助的考生可以【点此】进QQ群进行交流。

　　感谢您阅读全国成人高考英语专升本模拟试题：In the clause “ . . .that we are unconscious in sleep" ( Para. 3) ,the word "unconscious" means().，本文出自：诚为径教育，转载需带上本文链接地址：https://chengkao.cwjedu.com/st/7194