4.  Don't drop l__________ everywhere.  It's everyone's duty to keep clean.

3.  The_______ (底部）of the bottle is very thick.

2.  F__________________ live on fishing by the sea.

1.  Burning_______ _ (煤）is bad for the environment.

Yesterday we_______   planting trees and________our campus.

A.  took part in; cleaning up

B.  joined ； to clean up

C.  took part in; to clean up

D.  played a part in; clean up

7.  外卖食物 ______________________

8.起作用；有影响 ___________________ 

5.  木筷子 ________________________

6.  塑料叉 ________________________

3.  噪音污染 ______________________

4.  骑自行车的优点 ________________

汉译英

1.  手机 __________________________

2.  河底 __________________________

假如你是周兰，你的加拿大笔友Jenny在给你的邮件中描述了她上周末去野外郊游的情况，并询问你是如何度过上个周末的。请根据以下提示写一封邮件给Jenny_D

要点提示：

1.  上周末，你校组织学生乘汽车去动物园游玩；

2.  你们看了各种动物，观看了精彩的海豚表演；

3.  午饭后大家乘车返回校园。Dear Jenny,

I was very glad to know that you had a good time last weekend.__________________________

__________

Yours,Zhou Lan