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Learning aims:
1. skim the article for the main idea of the whole text;
2. scan the article for detailed information;
3. realize the way and importance of protecting environment.
--What do you think of China?
-- It’s .
How to keep it green?
.
China
green
Green
How to keep China green?
* We are not allowed to …
* We’d better …
the litter into different groups.
separate
air and water pollution.