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译林2003课标版《Reading(2)：The economy or the environment—must we choose？》集体备课PPT课件优质课下载
Unit
2
The economy or the environment—must we choose?
Unit 2
课件描述：
本课件是Reading部分第一课时，主要通过以Reading Strategy为线索，引导学生对于辩论文体的理解。
Some kinds of pollution
In China millions of tons of household wastes are produced everyday.
Air pollution
The automobiles are piping out all kinds of waste gas into the atmosphere.
We can always see heavy smoke piped from the tall and ugly chimneys.
Deforestation
A photo from the Amazon drainage area.
Many tropical rain forests were cut down in order to be developed into farmlands.
Sandstorm
Everything was covered with sands.
It looks like something like a bomb exploding not far away.
Water pollution caused by chemicals
Huai River in china
Michigan Lake in USA
The impact on human beings
Many children suffer hunger.
Because of pollution many children were born abnormal.
The economy
or the environment