《We’re trying to save the earth!》SectionA PPT教学课件(第1课时)

人教版九年级英语下册《We’re trying to save the earth!》SectionA PPT教学课件(第1课时)，共31页。

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.

常用短语

play an active part in (doing) sth.    积极参与（做）某事

play an important part in (doing) sth.  在某事中发挥重要作用

[拓展]play a part  在……中扮演角色 , 与 play a role 同义。

He was invited to play a part in this TV play. 

他被邀请参加这个电视剧的演出

Linda ____________ of Snow White in the play.

琳达在这部话剧中扮演了白雪公主的角色。

[观察] Our actions can make a difference and lead to a better future! 我们齐心协力就能带来变化，创造更加美的未来。

[探究] make a difference         起作用；有影响

make a difference to …    对……产生影响

[注意] difference前面可加修饰语，如big, great等，表示受影响的程度。

锻炼对她产生了重大影响。

Exercise ____________________ to her. 

… … …

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