问题补充：
(A)
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.
【小题1】Our body grows most while we are .A．eatingB．playingC．sleepingD．reading【小题2】Too little sleep makes us .A．tiredB．hungryC．happyD．angry【小题3】—What may cause us to feel tired in the morning?
— during the sleep.A．Too much airB．Not enough fresh airC．Too much cold airD．Too much warm 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.D．11 hours.【小题5】What do the lungs need most?A．Fresh air.B．Exercise.C．Warm air.D．Cold air.C
答案：
(答案→)C
解析：这篇文章讲述的是晚上身体得到充分的休息对我们是有好处的，文章中介绍了睡眠的时间，以及我们睡眠时也需要充足的空气。
【小题1】细节理解题。根据文中Our body grows most when we are asleep，“在睡眠时我们的身体长得最快”可知，asleep 睡着的，故选C。
【小题2】推理判断题。根据文中We can get better at our lessons after having plenty of rest 我们得到了充足的休息后，才能更好的学习我们的功课。可推断出，如果睡眠少会使我们很累，而不是很饿、很高兴或很生气。故选A。
【小题3】细节理解题。根据文中If we do not get enough fresh air, we will feel tired when we wake up “如果我们不能得到充足的新鲜空气，那么当我们醒来就会感到很累”，可知答案选B。
【小题4】细节理解题。根据文中Boys and girls who are eight or nine years old need ten hours of sleep every night“8、9岁的孩子每晚需要十个小时的睡眠”可知答案为C。
【小题5】细节理解题。根据文中our lungs need to get enough fresh air“我们的肺需要足够的新鲜空气”可知答案为A。
