2. 外语
  3. Nowadays, air travel is very【C1】______. We are not surprised when we watch on TV that a politician has talked with French Presid

Nowadays, air travel is very【C1】______. We are not surprised when we watch on TV that a politician has talked with French Presid

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问题     Nowadays, air travel is very【C1】______. We are not surprised when we watch on TV that a politician has talked with French President in Paris and attended a meeting in Beijing on the same day.【C2】______, if a person takes long-distance flying frequently, he can be so tired that he maybe feel his brain is in one country, his【C3】______in another.【C4】______, he【C5】______knows where he is.
    When we fly from east to west or【C6】______versa, the【C7】______we experience after taking a long distance flying is【C8】______, because we cross time zones. According to doctors, air travelers, after crossing several time zones, are in no【C9】______to go to work, and they should go【C10】______to bed【C11】______arrival.
As to airline pilots who often live【C12】______their own watches and ignore local time, there is no need for them to worry about their health although they sometimes have breakfast at midnight, because they are used to【C13】______and are【C14】______fit.
    Many businessmen like long-distance flights, thinking they are【C15】______to have been chosen and they are out for promotion. They are lucky if the company follows the doctor’ s advice and allow them to rest for a day or two【C16】______working. However, sometimes the manager is so energetic that he believes everyone is【C17】______to be as fit as he is. Since he has never felt【C18】______after flying himself, the work he assigns is so【C19】______that the employee is too【C20】______to carry the work out satisfactorily. That is disastrous for the employee’ s health and the company’ s reputation.
【C12】
选项 A、on
B、by
C、upon
D、with
答案B
解析 本题考察的是介词by的用法。by有“从…看，按照”的意思，本句的意思是“飞行员按照他们自己的表生活，不管当地的时间”。on，upon和with都没有这种用法。所以，本题选择B。
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