英语语法-句型

英语句型+例句详解

一、以形式主语it引导的句型。

句型1.

It (so) happened（chanced） that +clause. = sb. happened /chanced to do sth. =sb.did sth.

by chance. 如：

It happened that he was out when I got there. 当我到那儿时，碰巧他不在。＝He

happened to be out when I got there.= It chanced that he was out when I got there= He was out by chance when I got there.

句型2.

It seems that sb. do/ be doing/ have done/ had done= Sb. seems to do/ to be doing/ to

have done/to be done/to have been done（还有动词appear等可这样使用）如: It seemed that he had been to Beijing before.他好像以前去过北京。＝He seemed to

have been to Beijing before.

句型3.

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

调句型中的谓语动词否定的转移)。 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。）

句型4.

It is high time (time/ about time)+ (that) 主语＋ did / should do +其它。(从句中的谓

语动词用的是虚拟语气。)如:

It is high time that we should go / went home.我们该回家了。

句型5.

It is / was said ( reported, thought, believed, supposed …)＋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.

句型6.

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。

句型7.

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。

句型8.

It is suggested / ordered/ commanded /…that +clause.(从句的谓语动词用should do, 但