5．
阅读理解
The sun, the moon and the stars are all in
the sky. We can see the sun in the daytime(白天).
We can see the moon and the stars at night.
The sun is much bigger than the moon. It
gives us light and heat(光和热).
The moon looks bigger than the stars, because
it is much nearer to the Earth. The light of the moon comes from the sun.
The stars look smaller than the sun and the
moon. But most of the stars are bigger than the sun. They look small because
they are very far away from（远离) us.
