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It的用法
一、人称代词1,it的最基本用法是作代词,主要指刚提到的事物,以避免重复:
①They watched the train until it disappeared in the distance.2.,也可以指动物或婴儿(未知性别的婴儿或孩子):?
②Is this your dog?No, it isn’t.
③They got a baby and it was a ten-pounder3.,也可指抽象事物或指抽象环境和情景:
③I hate it when people talk with a full mouth..二、.非人称代词1.it有时并不指具体的东西而泛指天气、时间、日期、距离、价值、度量、温度、环境等: ⑴.指天气:It is a lovely day, isn’t? it? ??
⑵.指时间: It was nearly midnight when she came back.
⑶.指日期:It is April First today.?
⑷.指距离:It is some 3000 kilometers from A to B.
⑸.指价值:It is three dollars.?????
⑹.指温度:Today it is 30 degrees centigrade.
作形式主语,替代主语从句,动词不定式,或动名词短语: 1.作形式主语替代主语从句⑴It is clear ( obvious, true, possible, certain....) that
①It is very clear that he’s round and tall like a tree.
②It is certain that every effect must have a cause. ?
⑵It is important ( necessary, right, strange, natural...) that 从句 ?
①It is important that we (should) learn English well.
②It is necessary that he (should) remember these words. ⑶ It is said (reported/ learned/believed/consider/thought/known/told/hoped.....) that 从句
①It is said that he has come to Beijing.
②It is reported that another earth satellite has been put into orbit. ⑷ It is suggested ( advised/ ordered / demanded/ insisted/ commanded/recommend/acknowledged... ) that
?①It is strongly suggested that the meeting ( should ) be put off. ?? ②It is widely acknowledged that students are under great pressure .
⑸ It is time ( about time ,high time ) that从句(动词用过去时did/should do)
?? It is time that children went to bed.
⑹ It is the first ( second ... ) time that从句(从句用现在完成时 have done )
? It was …(从句用过去完成时had done ).常译为"是第一(二)...次..."。
①It is the first time I have been here.
②It was the first time that I had participated in the exchange student program,which not only broaden my horizon but also improved my confidence.
⑺ It is a pity ( a shame /an honour/a good thing/a fact,/a surprise/no wonder... ) that从句.?
? ①It is a pity that he is ill.
②It is no wonder that?you're tired,?you've b
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