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