16．Sleep is something we all do. But some people need to sleep more than others. Babies sleep most of the time. Children in school sleep about ten to twelve hours a night. Most adults sleep only seven or eight hours. 16
Allparts of our bodies have to rest after they work.. Our arms need a rest afterwe lift heavy thing, When we run fast, our legs work hard. They get tired. Wehave to rest them. Our brains work hard, too. 17 . We can sit quite still and restour arms and legs. But our brains aren’t resting. They go right on thinking aslong as we are awake.
Ourbrains slow down a bit when we sleep and dream. 18 Insteadof thinking wide-awake thoughts, our brains make up dreams. Some dreams arevery pleasing. Some are not. Most of the time we forget them when we wake up.
Scientistshave tried to find out what would happen if people were not allowed to sleep.They asked some people not to go to bed. The people stayed up all night and allthe next day. They stayed up the next night too, and the day after. They playedgames, but they made mistakes. They forgot things. 19
Thepeople grew rude and mean. They became angry with their friends. Finally theywere too tired to stand up. When they sat down, they fell asleep.
Scientistshave found that if people are not allowed to sleep and to dream, they act in anunusual way. 20 But we do know that we needit to stay well. So tonight have a good sleep. Lie down under the covers. Shutyour eyes. Let your thoughts wander. Soon you’ll stop thinking. You’ll beasleep.
A. It was hard for their tired brains to work.
B. When we are awake,they help us pay attention to the world around us
C. But babies, children, andadults----all of us need to have our sleep
D. Good sleep helps to improve one’smemory
E. No one knows why sleep is so good for us
F. But even as we sleep ourbrains are doing some work
G. Of course you will have a good sleep
16.C 17.B 18.F 19.A 20.E
16.根据上文提到的babies, children 和adults的不同睡眠时间,可知此处应选择C。
17.根据前句Our brains work hard, too.可知, 此处需要进一步解释大脑工作的内容, 故选B。
18.根据下句Instead of thinking wide-awake thoughts, our brains make up dreams.可知, 正确答案为F。
19根据前文They stayed up the next night too, and the day after. They played games, but they made mistakes. They forgot things. 可知, 让疲惫的大脑工作是很困难的, 故选A。
20.根据下文But we do know that we need it to stay well.可知, 此处应选E。
16.考查学生的简单推断能力
17.考查学生的上下文理解能力
18.考查学生的逻辑思维能力
19.考查学生一定的推理能力
20.考查学生的逻辑思维能力
16.根据上文提到的babies, children 和adults的不同睡眠时间,可知此处应选择C.
17. 根据前句Our brains work hard, too.可知, 此处需要进一步解释大脑工作的内容, 故选B。
18.根据下句Instead of thinking wide-awake thoughts, our brains make up dreams.可知, 正确答案为F。
19. 根据前文They stayed up the next night too, and the day after. They played games, but they made mistakes. They forgot things. 可知, 让疲惫的大脑工作是很困难的, 故选A。
20.根据下文But we do know that we need it to stay well.可知, 此处应选E。
16.易错选D 17.易错选D 18.易错选B 19.易错选E 20.易错选A