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  3. (厦门大学2014年试题) Most people who travel long distances complain of jetlag (喷气飞行时

(厦门大学2014年试题) Most people who travel long distances complain of jetlag (喷气飞行时

游客2025-04-01  39
问题 (厦门大学2014年试题)
   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【C1】______making mistakes. It is actually caused by【C2】______of your "body clock" —a small cluster of brain cells that controls the timing of biological【C3】______. The body clock is designed for a【C4】______rhythm of daylight and darkness, so that it is thrown out of balance when it【C5】______daylight and darkness at the wrong time in a new time zone.
   The【C6】______of jetlag often persist for days【C7】______the internal body clock slowly adjusts to the new time zone. Now a new anti-jetlag system is【C8】______that is based on proven【C9】______pioneering scientific research.
   Dr. Martin Moore-Ede has【C10】______a practical strategy to adjust the body clock much sooner to the new time zone【C11】______controlled exposure to bright light. The time zone shift is easy to accomplish and eliminates【C12】______of the discomfort of jetlag. A successful time zone shift depends on knowing the exact time to either【C13】______or avoid bright light. Exposure to light at the wrong time can actually make jetlag worse. The proper schedule【C14】______light exposure depends a great deal on【C15】______travel plans. Data on a specific flight itinerary (旅行路线)and the individual’s sleep【C16】______are used to produce a Trip Guide with【C17】______on exactly when to be exposed to bright light. When the Trip Guide calls【C18】______bright light, you should spend time outdoors if possible. If it is dark outside, or the weather is bad,【C19】______you are on an aeroplane, you can use a special light device to provide the necessary light【C20】______for a range of activities such as reading, watching TV or working. [br] 【C19】
选项 A、or
B、and
C、but
D、while
答案 A
解析 正确解答本题需要正确理解本文最后一句，特别是if从句的语义关系：两个or引述三种不易接触亮光的情况：外面天已黑、天气不好或在飞机上。
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