8. as + adj/adv(原) + as　　　 与…一样；

not so/as + adj/adv(原)+ as 与…不一样

6. try (not) to do sth 　　　　尽量(不)做某事

　 7. too many +名 (复)　　　 　太多的…

　 too much +不可名　　　　 　太多的…

much too+ 形/副 (原)　 　太…

5. make a difference to sb./sth.对…有重大影响

4. do harm to sb./ sth. 　　　对…造成伤害

=do sb./ sth. harm　

3. instead of sb / sth 　　　　代替某人/某物

instead of doing sth　 　　代替某人/某物做…

2. protect the environment 　保护环境

.根据课本内容以及周围相关问题，以小组为单位设计一张关于环保的海报。

3. The Great Wall is one of the ________ of the world that created by human beings!

　 A languages　 B events　　 C history　　 D wonders

2. Remember to __________ before you leave the room.

A turn on　 B turn off　 C turn up　 D turn down

1. Dangerous pollution are harmful _________ the living environment.

A for　　 B on　　 C to　　　 D as