【正文】
r. A lot of people don39。s the highest mountain in the world? Water is the __1__ of all the things we eat and drink. Not many people understand this but __2__ true. The human body can go without __3__ for a long time. We39。 Unit 7 What39。s the highest mountain in the world? 單元能力提升七 單元能力提升七 Unit 7 What39。ve got many examples for this. Yet two __4__ three days without water can usually make people __5__. Man can39。t understand how __7__ water the human body needs to work well, and many people, especially young people, Ⅰ . 完形填空 單元能力提升七 do not drink enough, __8__ in very hot weather. Our body has mostly water, about 65% to 75%. That is to say about two thirds of our body __9__ water. When we do sports, some of the water will get away from our body. __10__ we don39。t have enough water. And if we don39。ll feel tired and many of us will get ill. So you know how important water is to us. 單元能力提升七 ( ) B. most important C. more important D. importance