摘要：(二)分词的时态 现在分词分一般式和完成式.而过去分词则没有时态形式的变化. 现在分词的一般式表示动作与谓语动词同时发生.或在谓语动词之前发生.例如: Knowing his uncle would come, he began to make some preparations. 现在分词的完成时.表示的动作发生在谓语动词表示的动作之前.常用作状语.例如: Having finished his homework, he went to bed.
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用分词的形式改写句子
If we were given more time, we could do it much better．
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用分词的形式改写句子
If it is heated to a high temperature, water will change into vapor．
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用分词的形式改写句子
Though they had been warned of the storm, the farmers were still working in the fields．
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