摘要: The stars in the daytime.

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阅读理解。
    The sun is always shining. But it can only shine on one side of the earth at one time. When the sun is
shining on one side of the earth, it is night on the other side.
     At night, you can see the stars (星星). The stars are in the sky all day. But the light from the sun is so
bright that you can't see them. When night comes, there is no light, and the stars are bright enough to see.
The stars look very small. But some of them are even bigger than the sun. They look small because they are
so far away from you. Big things look much smaller when they are far away. The sun is closer (近) to the
earth than other stars, so it looks bigger.
1.When it is night, the sun ______.
[     ]
A. doesn't shine
B. shines for a short time
C. disappears (消失)
D. shines on the other side of the earth
2.We can't see the stars in the sky at daytime (白天) because ______.
[     ]
A. there are no stars there
B. the stars are much smaller than the sun
C. the bright light from the sun makes them not seen (被看见)
D. the stars come out only at night
3.The stars look small because ______.
[     ]
A. they are far away
B. they are small
C. they have no light
D. they are in the sky
4.Small things may look ______ when they are close.
[     ]
A. bigger
B. small
C. near
D. far away
5.The sun looks bigger than other stars because _______.
[     ]
A. it's bigger
B. it's far away in the sky
C. it gives much bright light
D. it's closer to the earth than other stars
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阅读理解。
     There is nothing more important than the sun. Without the sun all living things(生物) on the earth will die.
     The sun is a star. In the sky there are thousands of stars like the sun. They are as large as the sun and as
hot as the sun. At night you can see many stars, but in the daytime you can see only one star, the sun.
     The sun is much nearer to us than any other star. That is why it looks the biggest and the brightest of all
the stars. The distance of the sun from the earth is as much as 150 million kilometers. Most of the stars are
thousands of light years away from the earth.
     Do you know the light year? Nothing in the world travels faster than the light. It travels 300,000 kilometres
a second (one-sixtieth of a minute). And one light year is the distance that light travels in one year.
1. Without the sun, ___.
A. some living things will live on the earth
B. people can not live on the earth
C. only some plants can live on the earth
D. there will be no stars in the sky
2. In the daytime you can only see the sun because _____.
A. other stars are too far away
B. there are no other stars in the sky
C. the sun is the biggest in the sky
D. the other stars only come out at night
3. Why does the sun look the biggest and the brightest of all the stars?
A. The sun is far away from the earth.
B. The sun is the nearest star to the earth.
C. The sun is 150 kilometres away from the earth.
D. The sun is much bigger and brighter than other stars.
4. Light travels _____.
A. 300,000,000 kilometres a minute
B. 300,000 metres a second
C. 300,000,000 metres a second
D. 3000,000 kilometres a minute
5. "Light year" in this passage means _____.
A. light
B. year
C. a far-away place
D. a very, very long way
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