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  3. A supersonic airliner like Concorde flies at twice the speed of sound. A passenger can leave London at noon and arrive in New Yo

A supersonic airliner like Concorde flies at twice the speed of sound. A passenger can leave London at noon and arrive in New Yo

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问题     A supersonic airliner like Concorde flies at twice the speed of sound. A passenger can leave London at noon and arrive in New York at ten o’clock that same morning! There is a five-hour time difference between the two cities and Concorde can fly the Atlantic in only three hours. That evening the passenger will feel it is time to go to bed when it is only six o’clock. The evening will only just be beginning. Airline pilots suffer from this very much. It may be in the middle of the night in Hong Kong but their stomachs are still on London time, where it is dinner time. Pilots and other airline crew have to adjust to constant changes in time. That is why they often look fifty years old when they are only forty. This adjustment to sudden changes causes all sorts of problems.
    Air travel is getting faster all the time. Engineers say that soon people will be "shot" to their destinations in huge rockets. These rockets will be shot high above the earth’s atmosphere and land on the other side of the earth forty-five minutes after take-off. They will be able to cross the Pacific Ocean in only eighteen minutes.
    But, of course, passengers will face the same problems on the ground that they face at present. We shall still spend hours getting to the airport. Today, the shortest part of the journey and the least difficult is in the air. The worst and longest part is on the roads leading from the center of town to the airpo rt. The roads become more and more crowded while our planes become faster and faster.
Pilots often look older than they really are because______.
选项 A、they eat dinner in the middle of the night
B、they suffer a lot from the changes in time
C、they have to work at the weekend
D、they live far away from the airport
答案B
解析 本题为细节题。要根据文章内容找到“飞行员经常看起来要比他们实际年龄大”的原因。选项A．they eat dinner in the middle of the night是一个事实，但并不是导致飞行员变老的原因；选项C．they have to work at the weekend和选项D．they live far away from the airport：是很多人生活中很常见的事情，也不是他们变老的原因；选项B．they suffer a lot from the changes in time与原文中“Pilots and other airline crew have to adjust to constant changes in time”一致，而文章中将这个原因归结为飞行员和其他机组人员容易变老的原因。因此正确答案为B。
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