外研版九年級英語上冊《If everyone starts to do something，the world will be saved》Save our world PPT免費(fèi)下載，共33頁。
Look and say.
Farmers can’t use water for their crops because the rivers are polluted.
In some places, pollution from factories spreads over cities and villages.
So many cars use so much oil and cause pollution.
Waste gases from factories often pollute the air.
Rice farmers here still plant and harvest their crops by hand.
Language points
1.spread over的用法
And in some places, pollution from factories spreads over cities and villages.
spreads over: 分散，傳開
2.a danger to 的用法
Pollution is a danger to our health.
a danger to: 對…的危險(xiǎn)
3.it’s no use doing 的用法
It’s no use talking about things we can’t do.
it’s no use doing: 做某事沒有用處
4.such as 的用法
Such as…?
such as: 例如
5.hopeless 的用法
Though pollution is heavy now, I don’t think it’s hopeless.
hopeless: 沒有希望的
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關(guān)鍵詞：If everyone starts to do something，the world will be saved PPT課件免費(fèi)下載，.PPT格式；
