Water is the 　36 　of all the things we eat and drink . Not many people understand this but 　37 　quite true . The human body can go without 　38 　for a long time . We’ve got many examples for this . Yet two 　39　 　three days without water can usually make people 　40　 . Man can’t live 　41　 　water .

Many people don’t understand how 　42 　　water the human body needs 　43　 　work well , and many people , especially young people , do not drink enough , 　44　 　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 . 　45　 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 .

35.(　　 ) _____ the environment is important for human beings.

A. Take care of C. Took care of

B. Taking care of　　　　　　　　　　　　　　　　　　　　　　 D. Take the care of

34. I ______ in the mountain village when I was a child.

A. used to live　　　　 C. used to life

B, used to living D. was used to live

33. －I like to spend my free time drawing pictures.

－______.

32. There is _____ pollution in the world. We must stop it.

31.(　　 ) -Mum, could I take my pet to school?

-No. As a student, you _________ take it to school.

30.(　　 ) I didn’t hear ____________ because it was so noisy.

A. what you say C. what do you say

B. what did you say D. what you said

29.(　　 ) -In the old days, most teenagers had to work for the landlord (地主) in the field to help _____ their families, because their families couldn’t _____ an education for them.

-What a pity!

A. support; afford　　　 C. support; supply

B. afford; support　　　 D. afford; give

28. –Have you done _____ to improve the environment?

–Yes, we have.

A. something useful C. useful anything

B. any use thing D. anything useful

27. lily told John ____________for class again next time.