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Most people who travel long distance complain of jetlag. Jetlag makes business travelers less productive and more prone 【B1】____
Most people who travel long distance complain of jetlag. Jetlag makes business travelers less productive and more prone 【B1】____
admin
2018-04-27
49
问题
Most people who travel long distance complain of jetlag. Jetlag makes business travelers less productive and more prone 【B1】______ making mistakes. It is actually caused by 【B2】______ of your"body clock"—a small cluster of brain cells that controls the timing of biological【B3】______. The body clock is designed for a【B4】______rhythm of daylight and darkness, so that it is thrown out of balance when it 【B5】______ daylight and darkness at the "wrong" times in a new time zone. The【B6】______of jetlag often persist for days【B7】______the internal body clock slowly adjusts to the new time zone.
Now a new anti-jetlag system is【B8】______that is based on proven【B9】______pioneering scientific research. Dr. Martin Moore Ede had【B10】______a practical strategy to adjust the body clock much sooner to the new time zone【B11】______controlled exposure to bright light. The time zone shift is easy to accomplish and eliminates【B12】______of the discomfort of jetlag.
A successful time zone shift depends on knowing the exact times to either【B13】______or avoid bright light. Exposure to light at the wrong time can actually make jetlag worse. The proper schedule【B14】______light exposure depends a great deal on【B15】______travel plans.
Data on a specific flight itinerary and the individual’ s sleep【B16】______are used to produce a Trip Guide with【B17】______on exactly when to be exposed to bright light.
When the Trip Guide calls【B18】______bright light you should spend time outdoors if possible. If it is dark outside, or the weather is bad,【B19】______you are on an aeroplane, you can use a special light device to provide the necessary light【B20】______for a range of activities such as reading, watching TV or working.
【B11】
选项
A、in
B、as
C、at
D、through
答案
D
解析
考查介词用法。通过原文可知,此处需填入表示“通过”、“凭借”意义的介词。四个选项中只有D.through符合要求,是正确答案。
转载请注明原文地址:https://kaotiyun.com/show/IeBZ777K
0
考研英语一
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