2. 外语
  3. The sun is a star.(46)That is because it is near us; but the other stars are far away. The sun shines because it is very hot, bu

The sun is a star.(46)That is because it is near us; but the other stars are far away. The sun shines because it is very hot, bu

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问题 The sun is a star.(46)That is because it is near us; but the other stars are far away. The sun shines because it is very hot, but the moon shines because it reflects the sun’s light. ’It is like a big mirror. If we visited the moon, we should see the earth.(47).
     Sometimes the earth moves between the sun and the moon. Then the earth’s shadow falls on the moon; no light from the sun can then reach the moon. The moon gets dark because it cannot reflect the sun’s light. (48).
   Does the sun ever get dark during the say? It does so when the moon hides it. Sometimes the moon goes in front of the sun. We can watch its edge when it slowly crosses the sun’s disc. Everything gets darker and darker; then, at last, we cannot see any part of the sun’ s disc. The moon is hiding it completely. That is a total eclipse of the sun; sometimes only part of the sun’s disc is hidden; that is not a total eclipse.(49).
   (50)There was a total eclipse of the moon on January 9, 2001. That event was visible from Europe, Africa and Asia. There were about 20 total eclipses of the sun between 1970 and 1999. The latest was seen on June 21 this year in Angola, Zambia, Zimbabwe, Mozambique and Madagascar.

    A. Eclipses are not seen in every part of the world.
    B. The earth’s shadow was beginning to move away.
    C. We call this an eclipse of the moon.
    D. It appears to be bigger than any other star.
    E. It is also like a mirror and it reflects the light of the sun.
    F. It is a partial eclipse of the sun.
选项
答案A
解析 本段列举了几次日食和月食以及看到它们发生的不同地点，可知A句：“并非世界上的每个地方都能看到日食和月食”，可以安在此段段首。
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