It is ---结构句型的总结

It is ---结构句型的总结
It is ---结构句型的总结

It is ---结构句型的总结
1.It is / was＋被强调的部分＋that(who)+剩余的部分.如：It wasn’t until he came back that I went to bed.直到他回来我才睡觉.(一定要注意被强调句型谓语动词否定的转移,及形式).It was because he was ill that he didn’t come to school today.只因为他有病了今天没有来上学.（只能用because而不能用for,as 或since） It is I who am a student.我确实是个学生.（句中am不能用are来代替.） 2.It is high time (time/ about time) (that) 主语＋should do / did+其它.（注意从句中的谓语动词用的是虚拟语气） It is high time that we should go / went home.我们该回家了.3.It is / was said ( reported…)＋that+从句.如：It was said that he had read this novel.据说他读过这篇小说.＝He was said to have read this novel.4.It is impossible / necessary/ strange…that clause.(从句中的谓语用should＋do / should have done,其形式是虚拟语气.)如：It is strange that he should have failed in this exam.真奇怪,他这次考试没有及格.5.It is + a pity/ a shame…that clause.(注意从句中的谓语动词用should do或should have done的形式,但should可以省略.)如：He didn’t come back until the film ended.It was a pity that he should have missed this film.他直到电影结束才回来.他没有看到这部电影真可惜.6.It is suggested / ordered/ commanded /…that +clause.(从句的谓语动词用should do,但should可以省略.)如：It is suggested that the meeting should be put off.有人建议推迟会议.7.It is/was＋表示地点的名词＋where+从句.（注意本句不是强调句型,而是以where引导的定语从句.）如：It was this house where I was born.请比较：It was in this house that I was born.(后一句是强调句型.) 8.It is / was +表示时间的名词＋when+从句.（注意本句型也不是强调句型,而是以when引导的定语从句.）如：It was 1999 when he came back from the United States.请比较：It was in 1999 that he came back from the United States.9.It is well-known that＋从句.如：It is well-known that she is a learned woman.10.It is +段时间＋since+主语＋did.请比较：It was +段时间＋since+主语＋had done.如：It is five years since he left here.他已经离开这儿五年了.It was five years since he left here.（同上） 11.It is +形容词＋for+ sb.+ to do.如：It is impossible for me to finish this work before tomorrow.我明天之前完成此工作是不可能的.It is +（心理品质方面的）形容词＋of + sb.+ to do.= 主语+ be +形容词＋to do.(常用的形容词有：kind,stupid; foolish,good,wise等.)如：It is kind of you to help me.＝You are kind to help me.你真好给我提供了帮助.12.It is／was not until…that

帮我加精华啊 第二部分 三、 It 用于强调结构句型 23. It is/was + 被强调部分 + that……是… …的 此结构强调的成分仅限于主语，宾语和状语。 It is from the sun that we get light and heat. 我们从太阳得到光和热。 It was my father who did the experiment in the lab yester...

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帮我加精华啊 第二部分 三、 It 用于强调结构句型 23. It is/was + 被强调部分 + that……是… …的 此结构强调的成分仅限于主语，宾语和状语。 It is from the sun that we get light and heat. 我们从太阳得到光和热。 It was my father who did the experiment in the lab yesterday evening. 24. It is/was not until + 被强调部分 + that …… 直到… …才…… It was not until she took off her dark glasses that I realized she was a famous film star. 直到她摘下墨镜来我才意识到她是一位著名影星。 It was not until I had read your letter that I understood the true state of affairs. 直到我读了你的信，我才了解到事情的真实情况。 It is not until I have seen it with my own eyes that I will believe it. 只有我亲眼看到这件事，我才相信它。 25. It is/was … not … (被强调部分)+ that…是… …而不是… … It is/was not …but …(被强调部分)+that…不是……而是…… It was last week not yesterday that she met your brother in New York. 她是在上周而不是在昨天，在纽约看见你弟弟的。 It was not last week but yesterday that she met your brother in New York. 她不是在上周而是在昨天，在纽约看见你弟弟的。 It was Mary’s bag not Jone’s that was lost at school yesterday evening. 昨晚是玛丽的提包，不是琼斯的提包，在学校丢了。 It was not Mary’s bag but Jone’s that was lost at school yesterday evening. 昨晚不是玛丽的提包，而是琼斯的提包，在学校丢了。 26. It is/was because …… + that …… 是因为… …才… … It was because he was ill that he had to see a doctor. 是因为病了，他才不得不去看医生的。 He told me that it was because he was ill that they decided to return. 他告诉我正是因为他患病了他们才决定回来的。 It was because the weather was too bad that we failed to get in touch with them. 正是因为天气太坏，我们才没有和他们联系上。 27. It is/was not because… … but because …… + that …… 不是因为 …… 而是因为 ……才…… It is not because she is beautiful but because she has a talent for music that I recommend her. 我不是因为她美，而是因为她有音乐天才，才推荐她的。 It is not because of your efficiency but because of long absence that you get little money. 不是因为你做事效率低，而是因为你缺勤时间久，得到的钱才少的。 28. It is/was + (被强调部分) + (that) ……+ that …… 正是… … 的这个 ……才…… It is the fact that we have spent all our money that we must face. 正是我们已花光我们所有钱财的这一事实，才是我们必须面对的。 四、 It 用于特殊结构句型 ㈠常用固定句型 29. It is + time + for sb. to do sth 到……时间了; 该到……了 It is + time(about time, high time) + (that) sb. did sth. 时间已迟了; 早该……了 It is time for you to go to bed. 你该睡觉了。 It is time you went to bed. 你早该睡觉了。 It is (high) time that 后面的从句谓语动词要用过去式或用should加动词原形，但should不可省略。 It is time that the children went to bed. (= It is high time that the children should go to bed.) 该到孩子们上床睡觉的时间了。 30. It is + the first / second time（表次数）+ that从句 这是第一次 /第二次… … 该结构中的从句部分，用现在完成时。 It is the first time that I have visited the city. It was the third time that the boy had been late. 31. It is + 一段时间 + since从句 It has been + 一段时间 + since从句 自从… … 以来已经 …… 该句型中 " It is … since…"可代替"It has been … since …"，意思不变。 It is (= has been) five years since we last met. 自从我们上次见面以来已经有五年了。 注意：since从句中用延续性动词或状态动词的一般过去时，通常表示动作或状态的完成或结束。 It is five years since he lived here. 他不住在这儿已五年了。 It is a long time since he smoked. 他戒烟已有好长时间了。 It is three years since he joined the army. 他参军三年了。 It is three years since he was in the army. 他复员（离开军队）三年了。 32. It be + 一段时间+ before从句 好久… …就…… 该结构中be可以换用其他半系动词，也可以用将来时。 It was some time before he could speak. 过了好一会以后他才说出话来。 ㈡固定习语句型 此类句型颇多，现就高中出现的列举一二： 33. It / That (all) depends. 要看情况而定 --- Can you come to the party tonight? --- It all depends when I finish my paper. --- 你今晚能来参加晚会吗？ --- 那要看我什么时候做完作业。 --- What will you do? --- I don’t know. It depends. --- 你愿意干点什么？ --- 我不知道。要看情况。 34. It’s /That’s too bad + (that)从句. 太不幸了；太可惜了；真糟糕 It is too bad Jack doesn’t know German better. 真可惜杰克的德语没有学得更好一些。 It was too bad David had a bad cold when the circus came to our town. 真不凑巧，当马戏团来到我们镇上时戴维得了重感冒。 35. When / If it comes / came to the point, ……. 到了紧要关头；到采取行动或作出决定的时候 When it came to the point, he refused to help. 到了紧要关头时，他却拒绝援助。 I’m sure when it comes to the point, Mary won’t marry him after all. 我敢肯定，到做决定时，玛丽是根本不会嫁给他的。 完毕

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