题目内容：

Water is the _____ of all the things we eat and drink. Not many people understand this but ______ quite true. The human body can go without _____ for a long time. We’ve got many examples for this. Yet two _____ three days without water can usually make people ______. Man can’t live ______ water.

Many people don’t understand how _____ water the human body needs _____ work well, and many people, especially young people, do not drink enough, _____ in very hot weather. Our body has mostly water, about 65% to 75%. That is to say about two thirds of our body is water. When we do sports, some of the water will get away from our body. ___ we don’t drink some water, we won’t have enough water. And if we don’t have enough water, we’ll feel tired and many of us will get ill. So you know how important water is to us.

1.A. important              B. most important              C. more important              D. differe nt

2.A. it’s                 B. its                 C. it                  D. is

3.A. food                B. water                C. drink                D. meat

4.A . so              B. And                C. But                D. or

5.A. to die              B. die               C. to died              D. died

6.A. have                B. with               C. without                D. in

7.A. many              B. much              C. little              D. few

8.A. and                 B. the                C.  /                 D. to

9.A. even                B. ever                 C. almost              D. hardly

10.A. If              B. For                C. Since                D. Because