We all know that the three Shenzhou XIV astronauts(航天员), Chen Dong, Liu Yang and Cai Xuzhe are working and living in space now. But do you know something about the sun, the moon and the earth(地球)?
The earth moves round the sun, and the moon goes round the earth. When our part(部分) of the earth turns to the sun, it is day. When our part of the earth turns away from the sun, it is night.
The sun is much bigger than the moon. But sometimes the moon looks bigger than the sun, because it is much nearer to the earth.
The moon looks much bigger and brighter(更明亮的) than the stars(恒星). But in fact(实际上), the stars are much bigger and brighter than the moon. They look smaller than the moon because they are farther(更远的) away from the earth. As we know, the moon doesn’t give any light at all.
1．Sometimes the moon looks bigger than the sun, because it is much nearer to the earth.
( )2．The earth moves round the sun.
( )3．When our part of the earth turns to the moon, it is night.
( )4．Sometimes the moon gives some light.
( )5．The stars are much bigger and brighter than the moon.
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