阅读理解。
Scientist has told us so much about the moon that it's quite easy to tell
what it would like to be there. It's certainly not a friendly place. As there is no air or water, there can be no life of any kind. Mile after mile there are only
plains  (平原)  of dust with mountains around them and the sun and the stars shine in a black sky.  If you step out of the mountains shadows  (阴影 ) , it
will  mean  moving from terrible cold into great heat.
The moon is also a very silent world, for sound waves (波) can only travel through air.  But from the moon , you can see a friendly sight (景 象). Our
earth is shining more brightly than the stars. It looks like a very large ball,
coloured blue, green and brown.
1. What kind of' place is the moon?
A. It is a friendly place.
B. It is a lively place.
C. It is a nice place for man to live
D. It is a lifeless place.
2. Temperatures on the moon__________.
A. are usually the same
B. are always very low
C. can be very different
D. are usually very high
3. The moon is a silent world because______________.
A. there is no life there
B. there is no air there
C. there is no green tree there
D. there is no water there.
4. When we look from the moon, the sky is____________
A. blue
B. black
C. green
D. brown
5.“… there are only plains of dust with…”,the  word "dust" means
A .  ground
B．dry earth
C．land
D．field

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