1. 根据短文内容的理解，选择正确答案。

A

    Skin­diving is a new sport today. This sport takes you into a wonderful new world. It is like a visit to the moon. When you are under the water, it is easy for you to climb big rocks, because you are no longer heavy.

    Here, under the water, everything is blue and green. During the day, there is plenty of light. When fish swim nearby, you can catch them with your hands.

When you have tanks of oxygen on your back, you can stay in deep water for a long time. But you must be careful when you dive in deep water.

    To catch fish is one of the most interesting parts of this sport.

    What's more, there are more uses for skin­diving. You can clean ships without taking them out of water. You can get many things from the deep sea.

    Now you see that skin­diving is both useful and interesting.

1. （1） Skin­diving is a new sport. It can take you to ________.

   A . the moon B . a new world of land C . the mountains D . deep water
3. （2） In deep water ________.

   A . there is plenty of light B . there is no light at all C . you can find a lot of blue fish D . everything looks green and blue
5. （3） You can climb big rocks under the water easily because ________.

   A . you are very heavy B . you are as heavy as on the land C . you have no weight at all D . you are no longer heavy
7. （4） With tanks of oxygen on your back, you can __________.

   A . catch fish very easily B . stay under water for a long time C . climb big rocks D . have less fun
9. （5） Which of the following is NOT true?

   A . Skin­diving is a new sport. B . Skin­diving is like visiting the moon. C . The only use of skin­diving is to have more fun. D . Skin­diving is not only interesting but useful.