Unit 13 We're trying to save the earth!单元知识点讲练课件(共111张PPT).pptx
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Unit 13 We're trying to save the earth!
Section A(1a—2d)
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考点 Well, to cut__down air pollution, we should take the bus or subway instead__of driving.
cut down意为“减少;砍倒;缩减”,其后所跟的宾语为名词时,宾语可位于down的前面或后面,为代词时,只能位于down前面。
1. 用方框内所给短语的适当形式填空。
(1)You should ______...