通读下面的短文,掌握其大意。然后,从每小题的四个选择项中选出可填入相应空白处的最

最全题库2022-08-02  35

问题 通读下面的短文,掌握其大意。然后,从每小题的四个选择项中选出可填入相应空白处的最佳选项。  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 generally eight hours are enough for the health of grown-ups. Some can  23  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 always be enough to make one relaxed(松弛)and ready for  26  work.  Fresh air is  27  to sound sleep(酣睡). It is not without reason for some people to  28  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 relaxation.  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 control of any person. A bath at  33 , neither hot nor cold but of  34  temperature, may be helpful to sleep. Sleeping pills should never be taken except when suggested by  35 .____.A. As B. Where C. Unless D. When

选项 A. As
B. Where
C. Unless
D. When

答案 D

解析 句法结构题。此处是时间状语从句,意为“当一个人可以保持温暖时”,用when引导。As因为;where在……地方;unless除非,均不符合句意。
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