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1.不定式做主语
(1)不定式的逻辑主语由引导词来引导，这类引导词最常见的是for 和of。这一类相应的搭配有以下：absurd, bold, brave, courageous, careful, careless, clever, wise, foolish, silly, stupid, good, nice, kind, thoughtful, considerate, greedy, generous, honest, modest, polite, rude, cruel, selfish, lazy, wicked, wrong。如：
Doctors say that walking is one of the best methods for human beings to keep fit。医生说，走路几乎是保持健康最好的方法。
It’s so considerate of to arrange the accommodation for us。
都帮我们安排了食宿，您真是考虑的太周到了。.
(2)不定式做主语补足语：
掌握常用不定式做主语补足语的句型。注意不定式表示的动作发生的时间，并采用相应形式。如：be said / reported / thought / believed / known / supposed + to do sth.例如：
You were warned not to read in the strong light，cause it will hurt your eyesight。不要在强光下看书，会伤害你的眼睛。
2.不定式做宾语
掌握要求接不定式做宾语的动词：
afford, arrange, attempt, claim, desire, determine, expect, fail, guarantee, endeavor, intend, pledge, pretend, resolve, request, swear, tend, venture。如：
I can’t afford to buy a house of my own now.我现在还买不起自己的房子。
3.不定式做定语
(1)被修饰的名词前有序数词、形容词最高级或next, last, only, not a, the, very等限定词时，该名词用不定式做定语。如：
He is the last human being to see a live dinosaur 他是最后一个看到活恐龙的人（哈哈，小编插一句，这也太传奇了）
(2)如果其动词要求不定式做宾语，相应的名词一般用不定式做定语。如：
decision to do→decide to do
He made decision to do the housework=he decided to do the housework.(他决定做家务了) |
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发表于 2017-3-15 21:17:37