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Light travels very fast. It moves at a speed of 300,000 kilometers a second. Light reaches us from the moon in less than a secon
Light travels very fast. It moves at a speed of 300,000 kilometers a second. Light reaches us from the moon in less than a secon
admin
2014-06-26
94
问题
Light travels very fast. It moves at a speed of 300,000 kilometers a second. Light reaches us from the moon in less than a second and a half. The moon is about 382,000 kilometers away.
Light from the sun reaches us in 8.5 minutes. The sun is about 149,840,000 kilometers from the earth.
The other stars are farther away than the sun. Light from the nearest star reaches us in about four years. When you look at a star, you do not see its present condition. You see it as it used to be. Light from some stars takes hundreds of years to reach us. We never see a star as it is now. We see it as it was long ago; perhaps hundreds of thousands of years ago.
Astronomers (天文学家) watch the stars through big telescopes. The world’s biggest telescope is in Russia. The next biggest is in-the United States. With these great telescopes astronomers can see stars and other things very far away. Some of these things are not only stars. They are great groups of stars.
选项
A、more time than
B、less time than
C、as much time as
D、less years than
答案
A
解析
本题题干问“比较太阳光和月亮光到达地球的时间”。原文第1段第2句话指出月亮光到达地球大约用1.5秒,原文第2段第1句话指出太阳光到达地球大约用8.5分钟。因此选项A. more time than是正确答案。
转载请注明原文地址:https://kaotiyun.com/show/vbMK777K
本试题收录于:
大学英语三级B级题库大学英语三级分类
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大学英语三级B级
大学英语三级
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