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

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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.
【25】
选项 A、retains
B、encounters
C、possesses
D、experiences
答案D
解析 空格所在从句的意思是“在一个新的时区里，它(生物钟)在所谓错误的时间里    白天和黑夜”。本题的四个选项中，A项“保留”和c项“拥有”放入句中意思不通顺，比较容易排除。B 项encounters 意思为“遇到，遭遇到”，放到译文中完全讲得通，干扰性较大，但仔细辨别，该问题的解释为“find or be faced with something new，strange，unpleasant，difficult or dangerous”也就是说，它所带名词往往有负面意义，或者是新奇陌生的东西，昼夜交替是自然现象．用encounter 就显得不妥当。D 项experiences“经验，经历”，“meet with a situation or problem，or be affected by it，放入句中非常贴切，为正确答案。
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