人教版九年級英語下冊《We're trying to save the earth!》SectionA PPT教學課件(第1課時)，共31頁。
What pollution do you know?
The factories that burn coal pollute the air with a lot of black smoke.
Factories put waste into the river. people litter everywhere.
There are too many cars on the road.
Some people play loud music in public.
People use a lot of plastic bags in their daily life.
常用短語
play an active part in (doing) sth. 積極參與（做）某事
play an important part in (doing) sth. 在某事中發揮重要作用
[拓展]play a part 在……中扮演角色 , 與 play a role 同義。
He was invited to play a part in this TV play.
他被邀請參加這個電視劇的演出
Linda ____________ of Snow White in the play.
琳達在這部話劇中扮演了白雪公主的角色。
[觀察] Our actions can make a difference and lead to a better future! 我們齊心協力就能帶來變化，創造更加美的未來。
[探究] make a difference 起作用；有影響
make a difference to ... 對……產生影響
[注意] difference前面可加修飾語，如big, great等，表示受影響的程度。
鍛煉對她產生了重大影響。
Exercise ____________________ to her.
... ... ...
關鍵詞：We're trying to save the earth! PPT課件免費下載，.PPT格式；
