“Early to bed, early to rise (起身) makes people healthy, wealthy and wise (健康，富有，聪明)." This is an old English saying. Children should have ten hours' sleep every night, or they can't do their work very well. They will not be wise. The body needs exercise. Walking, running, swimming and playing ball games are all exercise. Exercise keeps the body strong.

1.“Early to rise” means that we must ________ early.

A go to school

B get up

C go home

D

解析：选B。B细节理解题。rise意思是“起身”，所以early to rise是“早起”的意思，故选B。

2.Children should have ________ hours' sleep every night.

A 8

B 9

C 10

D

解析：选C。C细节理解题。文章第三句Children should have ten hours' sleep every night中ten是10，故选C。

3.Everybody ________ exercise.

A need

B wants

C needs

D

解析：选C。C细节理解题。根据文章The body needs exercise.可知“需要”用need，everybody为单数，故选C。

4.Exercise makes us ________.

A fat

B stronger

C thinner

D

解析：选B。B细节理解题。根据文章最后一句可知，运动使身体强壮，故选B。