内容正文:
Unit 7 Protect the Earth
同步练习1
一、英汉互译。
1.许多能源____________________ 2. so much oil ____________________
3. 再利用和节约水____________________ 4. waste water____________________
5.用木头做桌子____________________ 6. at the school gate____________________
7.砍伐树木____________________ 8. make a poster ____________________
9.在地球上____________________ 10. in many places __________________
二、单项选择。
( ) 1. Look! There are too many ________ in the river.
A. fish B. plastic C. rubbish D. water
( ) 2. We ________ use too many plastic bags.
A. should B. shouldn’t C. can D. don’t
( ) 3. Trees help _______ the air clean.
A. keeping B. for keep C. keep D. keeps
( ) 4. Don’t use _________ plastic, Mum.
A. too many B too much C. much too D many too
( ) 5. We can use water ____________things.
A.to clean B cleaning