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选修7《Using LanguageⅡ》优质课PPT课件下载
1. How many animals were reduced between
1970 and 2012?
2 . Compared with 1970, how many animals
will we lose by 2020?
Humans .
58% .
Two thirds ( 2/3 ) .
0
1 . Why are there fewer animals
under the sea?
2 . What should be done to
stop this situation?
Discussion
1 . Why are there fewer animals under the sea?
Discussion
Their habitats have been polluted .
They are hunted and killed by humans .
Global warming
Died because of poisons
or diseases
Killed by other animals
Discussion
2 . What should be done to stop this situation?
No killing , no buying
No polluting ,