冀教版七年級英語上冊《Save the tigers!》Aminal friends PPT課件，共17頁。
Discussion
1.Discuss in groups. Think of a new kind of animal that they want to protect and talk about it.
What do they look like?
Where can you usually see them?
Why do you think they need our help?
2. Work in groups and discuss some ways we can protect animals. Write down your ideas.
Language Points
1. They are important to nature.
它們對大自然來說很重要。
be important to 對……很重要
例：Friends are important to us.
朋友對我們來說是很重要的。
2.They keep the number of other wild animals in balance.
它可以幫助保持其他野生動物的數量平衡。
①the number of ...的數量，后跟名詞復數，做主語時謂語動詞用單三。
The number of tigers in the wild is dropping quickly.
野生老虎的數量急劇下降。
拓展：a number of ...意為“許多；大量”，相當于a lot of或lots of，后接復數名詞，作主語時,謂語動詞用復數形式。
② keep... in balance 保持……平衡
... ... ...
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