睡眠的奇特之处

                                                                                       

There is a strange thing happening each night. People turn off the lights, pull up the covers and close their eyes. They sleep. Seven or eight sleeping hours later, they wake up. It is so strange, isn't it?    
The best conditions for sleeping are good health and a proper diet. A comfortable place is important, too.   
Strange things happen during sleep. For example, people often move. You would feel tired if you didn't. You also dream. Part of your brain is still awake when you dream. Dreaming happens when the memory and imagination in parts of your brain are still awake. Experiments have shown most of us dream in color. Bad dreams may be caused by stomachache. Don't worry if you dream. Some great stories and poems were begun while their writers slept.

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1.From Paragraph 1, what is the strange thing?

A People sleep and wake up.

B People have a proper diet.

C People have good health.

D People like eating.

解析：选A。细节理解题。根据第一段最后三句 They sleep. Seven or eight sleeping hours later, they wake up. It is so strange, isn't it?可知人们睡觉，七八个小时后醒来，这太奇怪了，故选A。

2.The best condition for sleep is NOT _____.

A good health

B a proper diet

C expensive covers

D a comfortable place

解析：选C。细节理解题。根据第二段The best conditions for sleeping are good health and a proper diet. A comfortable place is important, too.可知最好的睡眠条件是良好的健康状况和适当的饮食。舒适的地方也很重要。昂贵的被子没有被提到，故选C。

3.You would feel tired during sleep if you ___________.

A didn't move

B moved too often

C went to sleep late

D went to sleep early

解析：选A。细节理解题。根据第三段第二、三句For example, people often move. You would feel tired if you didn't.可知人们睡觉时如果不挪动，会觉得很累，故选A。

4.Which of the following is NOT true about dreaming?

A People may dream while sleeping.

B Your brain is all awake when dreaming.

C Memory and imagination cause dreams.

D Stomachache probably makes you have bad dreams.

解析：选B。B 细节理解题。根据第三段第五句Part of your brain is still awake when you dream.可知，做梦时只有部分大脑是清醒的，而不是全部。 故选B。

5.What’s the best title for the passage?

A The Causes of Dream.

B The Strangeness of Sleep.

C What Happens During Sleep.

D How can You Get a Good Sleep.

解析：选B。文章标题题。根据全文可知，文章主要说了睡觉的“奇特”之处，故选B。