When you have tanks of air 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 watch fish is one of the most interesting parts of this sport. Besides, there are more uses for skin-diving. You can cleans ships without taking them out of water. You can get many things from the deep water.

Now you see skin-diving is both useful and interesting.

(     ) 1. Skin-diving is a new sport. It ________.

       A. will take you to the moon             B. will take you to a new world of land

       C. will take you to the mountains       D. will take you to deep water

(     ) 2. In deep water there is ______.

       A. some danger           B. no light at all    

C. a lot of blue fish         D. lots of green things

(     ) 3. You can climb big rocks under water easily because ______.

       A. you are very heavy                   B. you are as heavy as on the land

       C. you are not as heavy as on the land   D. you have no weight at all

(     ) 4. With a tank of air on your back, you can ________.

       A. catch fish easily              B. stay under water for a long timeliuxuepaper.com