During the day we work and play, and at night we sleep. Our body rests when we sleep. In t

During the day we work and play, and at night we sleep. Our body rests when we sleep. In the morning we are ready to work and play again. Our body grows most when we are asleep. Children who are tired usually need sleep. We can get better at our lessons after having plenty of rest. Boys and girls who are eight or nine years old need ten hours of sleep every night. Our body needs plenty of air when we are asleep. If we do not get enough fresh air, we will feel tired when we wake up. While in bed we must not cover our head，our lungs need to get enough fresh air. If we open our windows at night, we can have plenty of fresh air. Cool air is better than warm air. Boys and girls who want to be strong must get plenty of sleep.
【小题1】Our body grows most while we are .
A. exercising B.playing C.sleeping
【小题2】Too little sleep makes us .
A.tired B.hungry C.happy
【小题3】 during the sleep may cause us to feel tired in the morning.
A.Too much air B.Not enough fresh air C.Too much cold air
【小题4】How many hours of sleep should 9-year-old children have every night?
A.8 hours. B.9 hours. C.10 hours.
【小题5】What do the lungs need most?
A.Fresh air. B. Exercise. C.Warm air.C

(答案→)C 解析：文章讲述了孩子们需要足够多的睡眠才能够有精力，身体才会更健康。同时睡觉时需要有更多的新鲜空气。【小题1】细节题。根据文章Our body grows most when we are asleep.当我们在睡觉的时候，身体生长的最快。故选C【小题2】细节题，根据文章Children who are tired usually need sleep.可知，如果睡眠不足的话，我们就会感觉疲惫。故选A【小题3】细节题。根据文章If we do not get enough fresh air, we will feel tired when we wake up.睡觉时如果我们没有足够的新鲜空气，当醒来的时候就会感到疲惫。故选B【小题4】细节题。根据文章Boys and girls who are eight or nine years old need ten hours of sleep every night。8,9岁的孩子每天需要10个小时的睡眠。故选C【小题5】细节题。根据文章While in bed we must not cover our head，our lungs need to get enough fresh air.我们在睡觉时，不要把头盖住了，我们的肺需要新鲜的空气。故选A

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