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How far is the sun from the earth? This is a question you have asked yourself since you began asking anything. In fact, for thou
How far is the sun from the earth? This is a question you have asked yourself since you began asking anything. In fact, for thou
admin
2013-12-08
65
问题
How far is the sun from the earth? This is a question you have asked yourself since you began asking anything. In fact, for thousands of years astronomers【C1】______the same question. But they had no way of getting an exact answer【C2】______the sun was far, far away. Now with the use of radio telescope, they【C3】______give a very exact answer: the sun is 92,956,000 miles away from the earth.
Can you imagine【C4】______that is?
The airplane today travels【C5】______a speed of 700 miles an hour. Imagine that you were flying to the sun in this airplane. You could make no stops for rest,【C6】______for gas or oil, because there would be no place for you to stop. You would fly day and night at such a speed. Yet by the time you arrived, fifteen years would【C7】______
The electric train can travel as fast as 110 miles an hour. If a railway could be built on a sunbeam, it【C8】______take the train nearly 100 years to【C9】______the sun. You would get very, very tired even if you lived【C10】______finish the journey.
What a long way it is to the sun! Have you ever thought that the sun is as far away from us as that?
【C7】
选项
A、pass
B、past
C、have passed
D、have past
答案
C
解析
pass为动词,表示“经过”,past为名词、形容词、介词。所以这里需要动词pass。by thetime引导表明动作在将来的某个时间之前已经完成,因而须用将来完成时。所以答案为C)。
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成人本科学位英语
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