1. (2018九下·绵阳月考) 完形填空

( A )

    "Early to bed, early to rise, makes a man healthy, wealthy and wise." This is an old English saying. It means that we must go to bed early in the evening and1 in the morning.

    The body must have enough sleep. If we don't go to bed early, we can't have enough sleep. Then we can't2 or do our work properly(正常地). We will not be clever or live a comfortable life. We must sleep at night when it is dark. When daylight comes, we must get up. This is the time for3. It means doing things with the body. Walking, running, swimming, playing games are all good forms of exercise. If the body is not used, it becomes weak. Exercise keeps it4.

    Exercise helps blood(血液) to move around inside the body. The brain(大脑) need blood. We think with our brains. If we keep our bodies5, and do exercise, we can think better.