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  40
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.
【35】
选项 A、unique
B、specific
C、complicated
D、peculiar
答案B
解析 根据上下文和选项，本句的大意是：制定恰当的时间表取决于特定的旅行计划。只有B 项specific“特定的，特有的”符合句意，且从后一句中的specific 也可以推知。 A项为“惟一的”，这里并不强调履行计划是否独一无二，而是是否为特定目标。所以不正确； C项为“复杂的”，违抗时差而制定的旅行计划不应该是复杂的，因此也不正确；D项有“特有的”这层意思，但只用作表语形容词(be peculiar to)，它作定语时，意思是“奇怪的，异常的”，不符合上下文。
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