________ earth moves around ________ sun．

1. A.
   /…/
2. B.
   A…a
3. C.
   The…the
4. D.
   The…/

The earth moves around the sun, and the moon moves around the earth. When our part of the earth turns to the moon, it is night.

  The sun is much bigger than the moon. But sometimes the moon looks bigger than the sun, because it’s much nearer to the earth.

  The sun is very bright. It gives a very strong light. The moon looks quite bright, too. But it doesn’t give any light at all.

  The moon looks much bigger and brighter than the stars. But actually(实际上） the stars are much bigger and brighter than the moon. They look smaller than the moon because they’re much farther away from us.

1.____moves around________.

A. The earth; the moon   B. The moon; the earth

C. The moon; the stars    D. The sun; the earth

2.Sometimes the moon looks bigger than the sun, because_________.

A. it is much bigger than the sun

B. it comes out only at night

C. it is much nearer to the earth than the sun

D. it doesn’t give a strong light

3.The sun_______________.

A. is very bright, and it gives a very strong light

B. isn’t bright, but it gives a very strong light

C. is very big, but it doesn’t give any light at all

D. is very round, but it can’t move round

4.The stars______________.

A. look much bigger than the moon

B. look much bigger than the sun

C. are a lot brighter than the moon, but they are not bigger than the moon

D. are much farther away from us than the moon

5.When                            ,it is day.

A. our part of the earth turns to the moon

B. our part of the earth turns to the sun

C. the sun moves

D. the moon moves

The earth moves around the sun, and the moon moves around the earth. When our part of the earth turns to the moon, it is night.
The sun is much bigger than the moon. But sometimes the moon looks bigger than the sun, because it’s much nearer to the earth.
The sun is very bright. It gives a very strong light. The moon looks quite bright, too. But it doesn’t give any light at all.
The moon looks much bigger and brighter than the stars. But actually(实际上） the stars are much bigger and brighter than the moon. They look smaller than the moon because they’re much farther away from us

1. 1.

   ____moves around________

   1. A.
      The earth; the moon
   2. B.
      The moon; the earth
   3. C.
      The moon; the stars
   4. D.
      The sun; the earth
2. 2.

   Sometimes the moon looks bigger than the sun, because_________

   1. A.
      it is much bigger than the sun
   2. B.
      it comes out only at night
   3. C.
      it is much nearer to the earth than the sun
   4. D.
      it doesn’t give a strong light
3. 3.

   The sun_______________

   1. A.
      is very bright, and it gives a very strong light
   2. B.
      isn’t bright, but it gives a very strong light
   3. C.
      is very big, but it doesn’t give any light at all
   4. D.
      is very round, but it can’t move round
4. 4.

   The stars______________

   1. A.
      look much bigger than the moon
   2. B.
      look much bigger than the sun
   3. C.
      are a lot brighter than the moon, but they are not bigger than the moon
   4. D.
      are much farther away from us than the moon
5. 5.

   When                            ,it is day

   1. A.
      our part of the earth turns to the moon
   2. B.
      our part of the earth turns to the sun
   3. C.
      the sun moves
   4. D.
      the moon moves

The earth moves round the sun, and the moon moves round the earth. When our part of the earth turns__46__ the sun, it is day. When our part of the earth runs away __47__ the sun, it is __48__.

The sun is much __49__ than the moon. But sometimes the moon _50__ bigger than the sun, because it’s much __51_ to the earth.

The sun is very bright. It gives very __52__light. The moon looks quite bright, too, but it doesn’t give any light at all. The light __53_ the moon comes from the sun.

The moon looks much bigger and brighter than the stars, _54__ in fact the stars are much bigger and brighter than the moon. __55__ smaller than the moon because they are farther away from the earth.