it最基本的用法-文庫吧在線文庫
【正文】 It+動(dòng)詞的被動(dòng)語態(tài) (said/believed/thought/expected/reported/ known+that從句 eg: It’s said that there has been an earthquake in India. 形式賓語 it: it 可以代表不定式： She found it difficult to convince him. He felt it his duty to take care of them. It 代表 that引導(dǎo)的從句： I took it for granted (that) you would be ing. It代表連接代 （ 副 ） 詞引導(dǎo)的從句： He hasn’t made it clear when he is ing back. They haven’t made it known where the meeting is to take place. 用 it跟從句用法： 1） it +be+形容詞 +從句： It is not clear to me why he behaved like that. 2） it +be+名詞 +從句 : It’s a puzzle how life began. 3） it +動(dòng)詞 （ +賓語 ） +從句 It doesn’t matter much where we live. It makes no difference whether we go by train or by boat. 4） it +動(dòng)詞的被動(dòng)語態(tài) +從句 It is not decided who will edit it. 5） it +動(dòng)詞 be +that從句 No, it couldn’t be that they were interested in him. 6） It +be + 一點(diǎn)時(shí)間 + when… It was Christmas Eve when I got the news of his being killed in a car crash. 7） It +be+一段時(shí)間 + since… It is/has been three week since I last heard from him. 8） It is time to do/ that… (謂語用過去時(shí)態(tài) ） It is time for us to give the house a thorough cleaning. It is time that we gave the house a thorough cleaning. 9） It
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