这些关于梦的知识你都知道吗？

All people need to dream. Dreams take up about one quarter of our sleeping time. The more we sleep, the longer we dream. People have several dreams each night. Dreams are like short films. 
Some people get new ideas about their work from dreams. They may have been thinking about their work all day. These thoughts can be into dreams.
Sometimes we wake up with a good feeling from a dream. But often we can’t remember the dream. Dreams can disappear quickly from memory.

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1.Do all people need dreams?　　

A Yes, they do.

B No, they don’t.

C No, only some people need them.

D We don’t know.

解析：选A。细节理解题。根据第一段第一句All people need to dream.可知所有人都需要梦，故选A。

2.The ____ we sleep, the ____ we dream.

A less; more

B more; less

C more; shorter

D more; longer

解析：选D。细节理解题。根据第一段第三句The more we sleep, the longer we dream.可知我们睡得越多，梦就越长，故选D。

3.Why do some people often dream about their work?

A Because they are tired in the daytime.

B Because they have too much work to do.

C Because they are not interested in their work.

D Because they may be thinking about their work all day.

解析：选D。细节理解题。根据第二段第二、三句They may have been thinking about their work all day. These thoughts can be into dreams.可知他们可能整天都在想着他们的工作，故选D。

4.Which of the following is TRUE?

A Work is important.

B We will feel bad when we go to bed.

C The mind doesn’t work when we dream.

D Dreams can disappear quickly from memory.

解析：选D。细节理解题。根据第三段最后一句Dreams can disappear quickly from memory.可知梦可以很快从记忆中消失，故选D。

5.What does the passage mainly talk about?

A Some information about dream.

B People hate to sleep.

C Dreams are like old films.

D We always forget the dream.

解析：选A。主旨大意题。根据全文可知文章介绍了梦的特征，为什么会做梦等相关信息，故选A。