1. 阅读理解

    Our nearest neighbour is the moon. In the sky, the moon and the sun seem to be of the same size because the moon is much nearer.

    The moon makes the tides（潮汐）—the changes in the level of the sea. The moon and the sun together pull the sea. In some parts of the world, the difference between "high tide" (when the sea is very near to the land) and "low tide" (when the sea is far away from the land) is very big. This is very important to ships.

    The moon is very different from the earth. Gravity（地心引力）on the moon is one-sixth of that on the earth. There isn't any air. During the day, the part of it that face the sun is very, very hot but at night it is very, very cold. Nothing can live on the moon.

    If the moon goes between the earth and the sun, we have an eclipse of the sun（日食）. The moon stops the light from the sun and it is dark in the day.

    If the earth goes between the moon and the sun, we have an eclipse of the moon. The moon goes into the shadow（影子）of the earth and it disappears for a few minutes.

1. （1） From Paragraph 1 we know that _______.

   A . the sun is as big as the moon B . the sun is smaller than the moon C . the moon is lighter than the sun D . the moon is smaller than the sun
3. （2） Which of the following is TRUE about the moon?

   A . It's very cold in the day time. B . It doesn't have any air on it. C . It has no gravity. D . It is the same as the earth.
5. （3） When the moon goes between the earth and the sun, it is dark in the day. We call it the eclipse of_______.

   A . the moon B . the sun C . the stars D . the earth
7. （4） Which of the following happens when we are an eclipse of the moon?

   A . The earth goes between the moon and the sun. B . The moon goes into the shadow of the sun C . The moon goes into the shadow of its own D . The sun disappears for a few minutes.
9. （5） Which of the following statements is TRUE?

   A . The moon and the sun are of the same size. B . Gravity on the earth is one-sixth of that on the moon. C . The moon itself pulls the sea and makes the tides. D . When the sea is near to the land, a high tide may happen.