根据短文内容，选择恰当的句子把短文补充完整。注意选项中有一个多余选项。

Of all the things we eat and drink, water is the most important. Not many people realize this, but it is quite true.    1.   , but two or three days without water usually leads to death. Many people do not understand how much water the human body needs at work and many people do not drink enough especially in cold weather.    2.   . Most people drink when they are thirsty, but we often need more water, especially after doing exercise.

___3.   . Water is very important in several different ways. Most people need about five to seven liters of water every day, but we do not need to drink that amount, because a lot of water comes from the food we eat.    4.   , however, we feel tired and may become ill. 

A. If we do not have enough water

B. A man’s body contains 65% --- 75% water

C. Most people drink enough only in hot weather

D. We need to drink water before doing exercise

E. The human body can live without food for a long time

完形填空(每空1词，共10分)
Of all the things we eat and drink，water is the  1 important. The human body can go 2  food for a long time，but two  3 three days without water could make people  4 .
A lot of people don’t understand how  5 water the human body needs  6 well and many people don’t drink enough，especially in  7 weather. Most people drink  8 they are thirsty but in fact they need more water，especially when they take  9 .
A man’s body is 65 to 75 percent of  10 . If we don’t have enough water. We fell tired and may become ill.
(   )1.A.more          B. most            C. less                D. least
(   )2.A.with          B. on              C. without             D. by
(   )3.A.or                B. and             C. of              D. but
(   )4.A.died          B. to die          C. dies                D. die
(   )5.A.many          B. little          C. few                 D. much
(   )6.A.work          B. working         C. to work             D. works
(   )7.A.hot           B. cold                C. cool            D. warm
(   )8.A.so                B. that            C. when            D. since
(   )9.A.fun           B. exercise            C. exercises       D. work
(   )10.A.blood            B. water           C. air             D. food

Of all the things we eat and drink，water is the  1 important.The human body can go 2    food for a long time，but two  3 three days without water could make people  4 .

A lot of people don’t understand how  5 water the human body needs  6 well and many people don’t drink enough，esecially in  7 weather. Most people drink  8 they are thirsty but in fact they need more water，expecially when they take  9 .

A man’s body is 65 to 75 percent of  10 . If we don’t have enough water. We fell tired and may become ill.

1.A.more  B.most  C.less  D.least

2.A.with  B.on  C.without  D.by

3.A.or  B.and  C.of  D.but

4.A.died  B.to die  C.dies  D.die

5.A.many  B.little  C.few  D.much

6.A.work  B.working  C.to work  D.works

7.A.hot  B.cold  C.cool  D.warm

8.A.so  B.that  C.when  D.since

9.A.fun  B.exercise  C.exercises  D.work

10.A.blood  B.water  C.air  D.food

完形填空(每空1词，共10分)

    Of all the things we eat and drink，water is the  1  important. The human body can go  2   food for a long time，but two  3  three days without water could make people  4  .

A lot of people don’t understand how  5  water the human body needs  6  well and many people don’t drink enough，especially in  7  weather. Most people drink  8  they are thirsty but in fact they need more water，especially when they take  9  .

A man’s body is 65 to 75 percent of  10  . If we don’t have enough water. We fell tired and may become ill.

(   )1.A.more           B. most             C. less                 D. least

(   )2.A.with           B. on               C. without              D. by

(   )3.A.or                 B. and                  C. of               D. but

(   )4.A.died           B. to die           C. dies                 D. die

(   )5.A.many           B. little           C. few                  D. much

(   )6.A.work           B. working              C. to work              D. works

(   )7.A.hot            B. cold                 C. cool                 D. warm

(   )8.A.so                 B. that                 C. when             D. since

(   )9.A.fun            B. exercise             C. exercises            D. work

(   )10.A.blood             B. water            C. air                  D. food