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A、To show the key role played by air traffic controllers. B、To show the great responsibility shouldered by the pilots. C、To give
A、To show the key role played by air traffic controllers. B、To show the great responsibility shouldered by the pilots. C、To give
admin
2013-01-22
26
问题
Today, air travel is far safer than driving a car on a busy motorway. But there is a danger that grows every year. From the moment an airplane takes off to the moment it lands, every movement is watched on radar screens. Air traffic controllers tell the pilot exactly when to turn, when to climb and When to come down. The air traffic controllers around a busy airport may handle 1,000 planes a day. Any plane that flies near the airport comes under the orders of the controllers there. Even a small mistake on their part could cause a disaster. Recently, such a disaster almost happened. Two large jets were flying towards the airport. One was carrying 69 passengers and had come from Toronto. The other was carrying 167 passengers from Chicago. An air traffic controller noticed on his radar screen that the two planes were too close to each other. He ordered one to turn to the right and to climb, but he made a mistake. He ordered the wrong plane to do this. So, instead of turning away from the second plane, the first plane turned towards it. Fifteen seconds later, it flew directly in front of the second plane. They avoided each other by the smallest part of a second. The distance between them was less than that of a large swimming pool. This is an example of the danger that grows every year.
选项
A、To show the key role played by air traffic controllers.
B、To show the great responsibility shouldered by the pilots.
C、To give an example of air disasters.
D、To show that air travel is far safer than driving a car.
答案
A
解析
文中提到Even a small mistake…cause a disaster,由此推断,作者之所以举两架大型喷气客机的例子是为了说明空中交通控制的关键作用(the key role played by air traffic controllers),因此A为答案。
转载请注明原文地址:https://kaotiyun.com/show/HEI7777K
0
大学英语六级
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