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It句型大扫描高二下2010-2一、it 作形式主语1. It is clear ( obvious, true, possible, certain) that It is very clear that hes round and tall like a tree. = That hes round and tall like a tree is very clear. 2. It is important ( necessary, essential, strange, natural.) that .that 后的从句中要用虚拟语气(should + 动词原形)It is important that we (should) learn English well. 3. It is said (reported, estimated, believed, thought) that “ 据说(据报道,据估计)”。It is said that he has come to Beijing. (=He is said to have come to Beijing)4. It is suggested ( ordered, required . ) that 从句中要用(should) do It is suggested that the meeting ( should ) be put off. 5. It is a pity ( a shame . ) that . 从句中用should do表示出乎意料,常译为“竟然”。没有这种意义时,则不用虚拟语气。 It is a pity that such a thing ( should ) happen in your class. 6. It is (high/about) time that . 从句中用should do/did It is time that children should go to bed. 7. It happens (seems, looks, appears ) that.It (never)occurred to me that It (so) happened that he met his teacher in the street. 碰巧 It seems that he will be back in a few days. 看来 8. It takes sb. to do sth. “做要花费某人”。 It took thousands of people many years to build the Great Wall. 9. It is no good (use ) doing sth. It is no good learning English without speaking English. 10. It doesnt matter whether ( if ) . It doesnt matter if they are old. 11. It is kind of sb. to do sth.常见的有: bad, brave, careless, clever, cruel, foolish, good (好心的), honest, horrible, kind, lazy, modest, naughty, nice, polite, rude, silly, stupid, wise, wrong等。 这个句型可以改写为:sb. is kind to do sth. It is kind of you to say so. = You are kind to say so. 12. It is necessary for sb. to do sth. important, necessary, natural, easy, safe, common, normal, hard, difficult, dangerous, unusual, rare, impossible, pleasant 等。 It is important for her to come to the party. 翻译:他很难相处。你方便的话给我打个电话。 13. It looks ( seems ) as if . 从句中根据实际情况用虚拟语气 It looks as if he is ill.(真的病了) It looks as if he were ill. (没有生病) 二、it作形式宾语14. We think it important to learn a foreign language.to do/ doing/ that 从句adj./n.结构:动词+形宾+宾补+真宾常用的动词:think, believe, make, find, consider, feel ; We think it our duty to clean our classroom every day. He felt it important learning English well. They found it difficult that they would finish their work in two days. 当被强调部分是人时取决于原句时态三、强调结构 It is/wasthat/who如果把这种句型结构划掉后,应该是一个完整无缺的句子。这也是判断强调句型与其它从句的方法。 It was about 600 years ago that the first clock with a face and an hour hand was made. It was they that (who) cleaned the classroom yesterday. It was in the street that I met her father. It is not until + that . “直到才”,是 not . until . 的强调形式。 I didnt realize she was a famous film star until she took off her dark glasses. Not untilIt was强调结构的疑问句形式翻译:你到底什么时候接到电话的?我不知道他到底什么时候接到电话的。四、it is.when/since/before/that15. It/This is the first ( second ) time that has/have done was had done It is the first time I have been here. 16. It is/has been since .(did) It wassince (had done) It is ( has been ) 5 years since his father died. 17. It is . when . 该句型中的 when 引导的是一个时间状语从句,主句中的 it 指时间,表语由具体的时间充当。常译为“当的时候,是”。 It was 5 oclock when he came here. 18. It be . before . “之后” It was 3 days before he went to Beijing. It will be not long before he finishes his job. It is ten years _ he returned to his hometown. It was ten years ago _ he returned to his hometown. It was 1990 _ he returned to his hometown. It is in 1990 _ he returned to his hometown. He went abroad in 1980. It was ten years _ he returned to his hometown.五、it用在某些动词后,如:enjoy, like, dislike, resent, hate, see to 之后I hate it when people speak with their mouth full.六、考查it 构成的习语Take it easy. Youve/Ive got it懂了,明白了;Forget it.Dont mention it. 不用谢It/That depends.make it 成功,做成When it comes to sth/doing sth当涉及(做)某事物的情况 事情或问题时Hes a bit of an expert when it comes
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