文档介绍：三种非谓语动词
的 逻辑主语
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非谓语动词意义上的行为执行者就是其逻辑主语.
如果其逻辑主语与非谓语动词之间是主动关系, 则非谓语动词要用主动语态形式; 如果是被动关系, 则用被动语态形式.
2
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,动词不定式的逻辑主语就是句中的主语.
I am sorry to hear that.
We need oxygen to breath.
He was seen to go out with a man.
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He wants to learn English.
Some stars are too small to be seen.
This point to be explained is about the long history of iron.
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“宾语＋不定式”的复合结构中，宾语就是不定式的逻辑主语．
She wants you to call him back at 11.
I often heard him sing the song.
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完整编辑ppt
They want the machine to be tested at once.
“ for/of ”+名词（或代词的宾格）＋动词不定式的结构中，“ for/of ” 后的名词（或代词的宾格）为动词不定式的逻辑主语．
This is for you to decide.
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I don’t think it advisable(可取的） for her to study medicine
There are a lot of experiment for the students to do.
This box is too heavy for him to carry.
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It’s important for the students to learn a foreign language.
It’s very kind of you to dinner.
二．动名词的逻辑主语
He avoided giving us a definite answer.
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Have you finished reading the book?
I’ve been looking forward to going to Beijing for a long time.
Norman hated being a fool.
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，则该动名词前一般有一个物主代词或名词所有格作为它的逻辑主语．这种 “ 物主代词或名词所有格＋动名词 ” 结构就是动名词的复合结构．它在句中具有主语，表语、定语或宾语的功能。
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