88.他来还是不来，我说不准。

根据已给出的首字母，在短文空白处填入适当的单词，使其内容通顺。每空限填一词，将完整的单词写在短文后面的横线上。

Skin-diving(潜游)is a new sport today. This sport takes you into wonderful new w　 81　 . It is like a visit to the moon. When you are u　 82　

the water, it is easy for you to climb big rocks, because you are no l　 83　

heavy.

Here, under water, e　 84　 　is blue and green. During the day there is plenty of light. When fishes swim nearby, you can catch them with your hands.

When you have tanks(罐)of air on your back, you can stay in deep water

　for a long time. But you must be c　 85　 　when you dive in deep water.

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

B　 86　 , there　 are　 more　 uses　 of skin-diving. You can clean ships w　 87　

taking them out of water. You can get many things from the deep sea.

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

81.　　　　　　 　82.　　　　　　 　83.　　　　　　 　84.　　　　　　

85.　　　　　　 　86.　　　　　　 　87.　　　　　　 　

80.　　　　　　

80.P　　　　 　soom, mum got home with a basket full of vegetables.

79.　　　　　　 　

79.How to deal with the problem, you must make a d　　　　 .

78.　　　　　　 　

78.It's i　　　　 　for him to buy that car. It's much too dear.

77.　　　　　　 　

77.A tour map is very h　　　　 　when you travel to a place of interest.