非谓语动词用法详解版.docx
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非谓语动词用法详解版
非谓语动词用法详解版
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非谓语动词用法详解版
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非谓语动词用法详解
动词的非谓语形式有三种:不定式、动名词和分词
(一)不定式
不定式由“ to 十动词原形”组成,其否认形式是“ not to do”.不定式能够带宾语或状语组成不定式短语, 没有人称和数的变化, 但有时态和语态的变化.不定式可作主语、宾语、状语、表语和定语,但不可以独自作谓语.不定式的逻辑主语有时用“ for 十名词或代词宾格”组成.
1.不定式的用法:
l) 作主语.不定式短语作主语时,常常放在谓语以后,用 it 作形式主语.例
如:
To see is to believe.
It is right to give up smoking.
2)作宾语.不定式短语作宾语时,假如还带有宾语补足语。常常把不定式宾语放在宾语补足语以后,而用 it 作形式宾语.比如:
He wanted to go.
I find it interesting to study work with him.
3)作宾语补足语.比如:
He asked me to do the work with him.
注意 :在 feel,hear,listen to,look at,notice, observe,see,watch,have, let,make 等词后的补足语中,不定式不带 to.可是这些句子假如变为被动构造时,就一定带 to.比如
I often hear him sing the song.
He is often heard to sing the song.
注意:不定式动词在介词 but,except,besides后边时,假如这些介词之
前有行为动词 do 的各样