非谓语动词，意思就是不能在句中充当谓语。但是，作为一个动词，它还是有个动作的执行者（主动关系）或承受者（被动关系），我们将之称为其“逻辑主语”。下面的练习要求是 ：A ： 找出该非谓语的逻辑主语，并指出与该动词是主动关系还是被动关系； B: 指出非谓语的动作是发生在主句动作之前还是之后；C: 或指出其在句中所作的成分；1. Having realized that I could use kite to attract the lightning, I decided to do the experiment.2. The bell rang, all the boys and girls went out of their classroom, singing and jumping.3. The boys swimming in the sea were in danger.4. They hearing the news, their tears came down their cheek.5. When taken following its directions, the drug has no neglect effect — 主动————————主动———主动———主动———被动二、 感受从一般句子转换为含非谓语部分（分词）的句子方法（一）：由定语从句改为分词短语的方法：1 ．若关系词之后有 be 动词 ( 限 be 在结构be+V-ing 或 be+V-ed 中时 )——— 则删去关系代词和be ，其它成分不变。Eg. A). Watch the men who are coming this way.Watch the man coming this way.B). Lessons which are learned easily are soon forgottenC). The dog was beaten yesterday is dead.Lessons learned easily are soon forgottenThe dog beaten yesterday is dead.2 ．若关系词之后没有 be 动词 ( 限 be 在结构 be+V-ing或 be+V-ed 中时 ) 而是一般的动词———则删去关系词，再将动词改为 -ing 形式 , 其它不变。A). Anyone who wishes to leave early may do so .Anyone wishing to leave early may do so .The boy sitting near the window was good at playing football.We see the stream rising from the hole.B).The boy who sat near the window was good at playing football.C) We see the stream which rises from the hole.方法（二）：由状语从句改为分词短语的方法。A ） . 先将引导状语从句的连接词去掉。B ） . 如果状语从句的主语与主句主语相同， 则去掉从句主语； 不相同， 则保留从句主语（亦称独立主...
