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Early to bed and early to rise makes a man healthy, wealthy (富有) and wise. This is an old English saying. Have you heard of it before? It means that we must go to bed early at night and get up early in the morning. Then we can be healthy. We shall also be rich and clever.

This is true. The body must have enough sleep to be healthy. Children of young age should have ten hours' sleep every night. If children do not have enough sleep, they cannot do their work very well. They will not be wise and they may not become wealthy!

The body also needs exercise. Walking, running, jumping, swimming and playing games are all exercise. Exercise keeps the body strong. Exercise also helps the blood (血液) to move around inside the body. This is very important. Our blood takes food to all parts of our bodies. The head also needs blood. Exercise helps us to think better!

1．The saying “Early to bed and early to rise makes a man healthy, wealthy and wise.” mainly tells the importance(重要性) of ________. (       )

A．enough exercise

B．enough sleep

C．good food

2．If a child doesn't have 10 hours' sleep, maybe he or she ________.   (       )

A．will become wise	B．won't do well in his or her work
C．will go to school on time

3．Exercise helps people think better because ________. (       )

A．it makes people clever	B．it helps blood to move to our heads
C．it makes people wealthy

4．What does the underlined (划线的) word wise mean ? (       )

A．clever

B．foolish

5．What can be the best title (标题) for the passage? (       )

A．Enough sleep is important	B．For our health, exercise now!
C．Sleep and exercise are important for good health