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Enough sleep is important to health. The amount of sleep needed depends on the age of the person and the conditions【C1】______ sl
Enough sleep is important to health. The amount of sleep needed depends on the age of the person and the conditions【C1】______ sl
admin
2017-03-21
21
问题
Enough sleep is important to health. The amount of sleep needed depends on the age of the person and the conditions【C1】______ sleep takes place. The young may need more sleep than the old, 【C2】______ generally eight hours is enough for the health of grown-ups. 【C3】______ can do with less than this amount but children may need more. Every person knows his own need. It is then a matter of【C4】______ to satisfy it. Sleep should be always enough to make one relaxed and ready for a day’s work.
Fresh air is necessary to sound sleep. It is not【C5】______ reason for some people to insist that it is practical to sleep in the open air.【C6】______ a person can keep himself warm, out-of-door sleeping probably gives the body a most complete relaxation.
Ability to sleep is largely a habit. The conditions【C7】______ to only lead to sleep. Out-of-door exercises, a good habit of regular drinking and the avoidance of late eating and worry 【C8】______ all helpful to sound sleep. Such factors are largely【C9】______ the control of any person. A bath at bed time, neither hot nor cold but of body temperature, may be helpful to sleep. Sleeping pills should never be taken except when【C10】______ by a doctor.
选项
A、As
B、Where
C、Unless
D、When
答案
D
解析
此题应是when引导的时间状语从句。句意为:“如果能保持暖和,在户外睡觉可使身体彻底放松。”
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本试题收录于:
英语题库普高专升本分类
0
英语
普高专升本
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