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)。

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。

扩展资料：

①there be+名词词组+形容词

--There are no other jobs available.

--There were several students ill.

--There’s a train due to arrive.

②there be+名词词组+介词短语

--There are many theories about the origin of life.

③there be+名词词组+介词短语

--Is there any other business for the committee at this meeting?

there be+名词词组+不定式 用不定式修辞主语时，既可用主动式，也可用被动式，不定式所表示的动作一般发生在将来。

④there be+名词词组+不定式

--There is no time to lose( to be lost).

--There are still many things to take care of (to be taken care of).

在口语中用主动形式更多一些，但有时两种形式可能表示不同的意思。例如：

--There is nothing to do now. (We have nothing to do now.) (现在没事儿干。)

--There is nothing to be done now. (We can do nothing now.) (现在没什么办法。)

--There is nothing to see (nothing worth seeing). (没有东西值得看。)

--There is nothing to be seen (nothing there at all). (看不见有什么东西。)

⑤there be+名词词组+动词-ing形式 动词-ing形式表示动作正在进行，是经常性的动作或是现在存在的状态。

⑥there be+名词词组+动词-ing形式

--There were a dozen hungry people standing in the rain.

--There is a house facing the south in the sands.

--There are plenty of people getting promotion. (有许多人晋级。)

there be+名词词组+动词-ed形式 动词-ed形式一般表示被动的动作，发生在谓语动词之前的动作。

⑦there be+名词词组+动词-ed形式

--There’ll still be some shops left open. (还会有一些店没关门。)

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.) 

扩展资料:

it句型归纳复习

1．It is said（reported，learned．．．）that．．．

该句型中的it是形式主语，真正的主语是that引导的主语从句。该结构常译为“据说（据报道，据悉……）”。

It is said that he has come to Beijing．据说他已经到北京了。

2．It is．．．since．．．

该句型主要用作处理非延续性动词的完成时，又要和表示一段时间的时间状语连用的问题。主句中是时间作表语，其时态是现在时或完成时，since引导的从句通常是一般过去时态，而且是非延续性动词。如果主句是一般过去时，从句则用过去完成时。

It is（has been）5 years since his father died．他父亲去世已经5年了。

3．It happens（seems，looks，appears）that．．．

该句型中it是形式主语，that引导的是主语从句，主句中的happen，seem等词是不及物动词。

It happened that he met his teacher in the street．碰巧他在街上遇见了老师。

It seems that he will be back in a few days．看来他几天后就会回来了。

4．It takes sb．some time to do sth．

该句型中的不定式是真正的主语，it是形式主语，常译为“做……要花费某人……时间”。

It took thousands of people and many years to build the Great Wall．成千上万的人用了许多年的时间才建起了长城。

5．It is kind（of sb．）to do sth．

该句型中的不定式短语是真正的主语，如果不定式的逻辑主语是由of引出的，句中的形容词必须是能表示逻辑主语特征的形容词。常见的有：bad，brave，careless，clever，foolish，good（好心的），honest，horrible，kind，lazy，naughty，nice（有教养的），polite，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．你这样说真是太好了。

（＝You are kind to say so．）

6．It is necessary（for sb．）to do sth．

该句型与第5点同属一个句型。如果不定式的逻辑主语是由for引起的，主句中的形容词通常是表示重要性，紧迫性，频繁程度，难易，安全等情况的形容词。常见的形容词有：① important，necessary，natural②easy，safe，common，normal，hard，difficult，dangerous，unusual，rare，impossible，pleasant等。

在①中的形容词作表语可以用从句改写，如：

It is important for her to come to the party．＝It is important that she（should）come to the party．

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 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 一常用固定句型 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。 二固定习语句型 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

It is +形容词+ for sb to do sthIt is +强调部分+that/who(人)+其他部分It is high time to do sthIt is high time that (should) do sthIt is about time to do sthIt is about time that (should) do sthIt is +形容词+ time to do sth