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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
admin
2010-07-06
17
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.
【40】
选项
A、agitation
B、spur
C、acceleration
D、stimulus
答案
D
解析
本题要选择一个名词作provide 的宾语。本题所在句子的后半部分意思是:你可以使用一种特殊的灯光装置,提供必要的灯光______,以进行阅读、看电视或工作等一系列活动。这一部分都是在将如何利用光线变化调整时差,这里应填入一个表示“刺激”的词。 A项为“煽动,鼓动”;C项为“加速,促进”,肯定不合适。B项spur 有刺激之意,但侧重强调“使……更……”,正确答案为D,stimulus (something that causes activity)“刺激,刺激物”。
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公共英语四级笔试
公共英语(PETS)
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