2. 外语
  3. Most people who travel long distances complain of jetlag (喷气飞行时差反应). Jetlag makes business travelers less productive and more pr

Most people who travel long distances complain of jetlag (喷气飞行时差反应). Jetlag makes business travelers less productive and more pr

admin2010-07-06  32
问题      Most people who travel long distances complain of jetlag (喷气飞行时差反应). Jetlag makes business travelers less productive and more prone  【21】______   making mistakes. It is actually caused by  【22】______   of your "body clock"—a small cluster of brain cells that controls the timing of biological  【23】______   . The body clock is designed for a  【24】______   rhythm of daylight and darkness, so that it is thrown out of balance when it  【25】______   daylight and darkness at the "wrong" times in a new time zone. The  【26】______   of jetlag often persist for days  【27】______   the internal body clock slowly adjusts to the new time zone. Now a new anti-jetlag system is  【28】______   that is based on proven  【29】______   pioneering scientific re- search. Dr. Martin Moore-Ere has  【30】______   a practical strategy to adjust the body clock much sooner to the new time zone  【31】______   controlled exposure to bright light. The time zone shift is easy to accomplish and eliminates   【32】______   of the discomfort of jetlag. A successful time zone shift depends on knowing the exact times to either  【33】______   or avoid bright light. Exposure to light at the wrong time can actually make jetlag worse. The proper schedule  【34】______   light exposure depends a great deal on  【35】______   travel plans. Data on a specific flight itinerary (旅行路线) and the individual’s sleep  【36】______   are used to produce a Trip Guide with  【37】______   on exactly when to be exposed to bright light. When the Trip Guide calls  【38】______   bright light you should spend time outdoors if possible. If it is dark outside, or the weather is bad,  【39】______   you are on an aero plane, you can use a special light device to provide the necessary light  【40】______   for a range of activities such as reading, watching TV or working.
【21】
选项 A、for
B、from
C、to
D、of
答案C
解析 这句话的意思是：时差使业务员效率降低，更容易犯错误。形容词prone要求与介词to 连用，因此选项C是正确答案。该搭配表示“易于……，有……倾向的”，后接名词或动名词，如“be prone to making mistakes”；也可以接动词不定式，如“be prone to make mistakes”。介词for，from 或of 均不能与之搭配，所以其他三个选项不正确。
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