问题补充：
This is an old English saying. Do you know it before? It says that we must go to bed early and get up early in the morning. Then we should be healthy. We should also be rich(wealthy) and clever (wise).
This is true. The body must have enough sleep to be healthy. Children of a young age should have ten hours’ sleep every night. Children who don’t have enough sleep can’t 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 keeps the blood（血液） moving around inside the body. This is very important. Our blood takes food to all parts of our body. The head also needs blood. Exercise helps us to think better!
【小题1】If a child doesn’t have 10 hours’ sleep every night, he .A．will become wiseB．won’t do well in his workC．will have to sleep in the daytimeD．can’t go to school in time【小题2】A person needs exercise because .A．it makes him healthyB．he has a lot of homework to doC．it doesn’t need timeD．it is fun to do exercise【小题3】Exercise makes the move quickly and smoothly.A．bodyB．bloodC．childrenD．head【小题4】Which of the following is not true?A．Exercise is good for a person’s head B．A student should have 10 hour’s sleep.C．It’s good for you to get up early and go to bed early.D．If you have enough blood, you’ll be wiseB
答案：
(答案→)B
解析：短文大意：这篇短文主要讲述了与健康有关的几个问题，首先我们要有足够的睡眠，其次我们还要坚持参加锻炼。
【小题1】细节理解题。根据第二段Children of a young age should have ten hours’ sleep every night. Children who don’t have enough sleep can’t do their work very well.描述，可知不能睡够10个小时的孩子不能很好的工作。故选B。
【小题2】细节理解题。根据短文第三段Exercise keeps the body strong.描述，可知锻炼有助于人的身体健康。故选A。
【小题3】细节理解题。根据最后一段Exercise also keeps the blood（血液） moving around inside the body. 描述，可知体育锻炼有助于血液循环更加快速和流畅。故选B。
【小题4】段落大意题。根据短文第二段描述，可知如果我们拥有足够的睡眠，我们会变得更加聪明。故选D。
