Enough sleep is important to health. The

考试题库2022-08-02  33

问题 Enough sleep is important to health. The amount of sleep  21  depends on the age of the person and the conditions in which sleep  22 . The young may need more sleep than the old, but  23  eight hours is enough for the health of grown-ups. Some can do with less than this amount but  24  may need more. Every person knows his own need. It is then a matter of how to  25  it. Sleep should be always enough to make one relaxed (松弛) and ready for  26  work.  Fresh air is  27  to sound sleep(酣睡).It is not  28  reason for some people to insist that it is practical to sleep in the open air.  29  a person can keep himself warm, out of-door sleeping probably gives the body  30  complete relaxtion.  Ability to sleep is largely a habit. The conditions referred to only lead to sleep. Out-of-door  31 , a good habit of regular drinking and the avoidance of late eating and  32  are all helpful to sound sleep. Such factors are largely within the  33  of any person. A bath at  34 , neither hot nor cold but of body temperature, may be helpful to sleep. Sleeping pills should never be taken except when suggested by  35 .____.A. AsB. WhereC. UnlessD. When

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。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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