语 境 自 主 领 悟
先观察原句
后自主感悟
1.We saw a sleeping boy in the room.
2.When people think of factories，they think of clouds of dirty smoke or of pipes pouring chemical waste into rivers.
3.Other types of waste flow into our water，killing river and sea life.
4.Asking around，I find many people willing to pay a little higher price for things that are friendly to the environment.
5.What I'm here to say is that having worked with many environmental consultants，I know that a healthy environment and development should be possible at the same time.
1.例句1和例句2中的现在分词(短语)在句中作定语，其位置不同，单个的现在分词作定语时，一般放在所修饰词的前面，而现在分词短语作定语时通常放在所修饰词的后面。
2.例句3、例句4和例句5中的现在分词短语在句中作状语，其位置也是较为灵活，可以在句首，也可位于句末；例句3和例句4中，现在分词表示的动作与谓语动词表示的动作同时发生，例句5中的现在分词表示的动作发生在谓语动词表示的动作之前。
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