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 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 antijetlag system is  【28】______  that is based on proven  【29】______  pioneering scientific research. Dr. martin Moore-Ede 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 brightlight. 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(施行路线) 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 aeroplane, 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.
【33】

选项 A、attain
B、shed
C、retrieve
D、seek

答案D

解析 本题要求考生选用恰当的动词。空格所在句子的意思是“要顺利地从一个时区换到另一个时区,就要准确地知道什么时候该——亮光或是避开亮光”。从句子的意思可知,要选用一个与“避开”的意思相反的动词。在4个选项中,D项seek意为“寻求,找寻”,放入句中,与句义吻合,因此是答案。attain的意思是“达到”,shed的意思是“流出流下”,retrieve的意思是“重新得到”或“检索”。这些词都不能与bright light搭配,也不是avoid的反义词,因此都不可能是本题答案。误选这几个面的考生或是还没有掌握seek
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