在高中英语的学习中，学生会学习到很多的重要的句型，下面学习啦的小编将为大家带来条件状语的句型的介绍，希望能够帮助到大家。 1条件状语从句 句型1 When / So long as / As long as / Once +从句，+主句。(从句也可以放在主句之后。)如： As long as you give me any money, I will let you go.只要你给我一些钱，我就让你走。 Once you have begun to learn English, you should learn it well. 一旦你开始学习英语，你应该把它学好。 句型2 主句+on condition that+从句.如： I will go with you on condition that you give me a sum of money.我和你一起去的条件是你给我一些钱。 句型3 主句+unless+从句.(注意：由于unless本身是否定词，所引导的从句的谓语动词用肯定而不用否定。)如： I will go there tomorrow unless it rains.我明天去那儿除非下雨。 点击查看：高中英语语法大全 句型4 祈使句，+and/ and then+主句。(注意：祈使句也可用一个名词短语。)如： Use your head, and you will find a good idea.动脑筋想一想，你就会想出一个好主意。 Another word, and I will beat you.你再说一句，我就揍你。 句型5 If +necessary / impossible/ important等，+主句.(注意：if与形容词之间的it is被省略。)如： If necessary, I will do it. 如果有必要的话，我来做此事。 2原因状语从句 句型1 主句+in case+从句.(in case表示以免)如： I will take my raincoat in case it rains.我要把雨衣带上以免下雨。 句型2 主句+due to / because of / owning to / + the fact that +从句。如： He did not come to school because of the fact that he was ill.由于他有病了，所以没有来上学。 高中英语 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/ be doing/ 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.他好象以前去过北京。=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+should do / did+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…)+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should可以省略。)如： It is suggested that the meeting should be put off.有人建议推迟会议。 句型9 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。) 句型10 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. 句型11 It is well-known that+从句。如： It is well-known that she is a learned woman.众所周知，她是个知识渊博的妇女。 句型12 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) 注意下列句型的翻译:It is five years since he lived here.他从这儿搬走已经有五年了。 句型13 It +谓语+段时间+before+主语+谓语.( before引导的是时间状语从句。) 如： It wasn’t long before the people in that country rose up.没有多久那个国家的人民就起义了。 It will be three hours before he comes back.三个小时之后他才能回来。 句型14 It is +形容词(possible, impossible, necessary等) +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。 句型15 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。 猜你感兴趣： 高中英语条件状语从句的句型介绍
以形式主语it引导的句型
