高中英語條件狀語從句的句型
在高中英語的學習中，學生會學習到很多的重要的句型，下面學習啦的小編將為大家?guī)項l件狀語的句型的介紹，希望能夠幫助到大家。
高中英語條件狀語從句的句型介紹
1條件狀語從句
句型1
When / So long as / As long as / Once +從句，+主句。(從句也可以放在主句之后。)如：
As long as you give me any money, I will let you go.只要你給我一些錢，我就讓你走。
Once you have begun to learn English, you should learn it well. 一旦你開始學習英語，你應該把它學好。
句型2
主句+on condition that+從句.如：
I will go with you on condition that you give me a sum of money.我和你一起去的條件是你給我一些錢。
句型3
主句+unless+從句.(注意：由于unless本身是否定詞，所引導的從句的謂語動詞用肯定而不用否定。)如：
I will go there tomorrow unless it rains.我明天去那兒除非下雨。
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句型4
祈使句，+and/ and then+主句。(注意：祈使句也可用一個名詞短語。)如：
Use your head, and you will find a good idea.動腦筋想一想，你就會想出一個好主意。
Another word, and I will beat you.你再說一句，我就揍你。
句型5
If +necessary / impossible/ important等，+主句.(注意：if與形容詞之間的it is被省略。)如：
If necessary, I will do it. 如果有必要的話，我來做此事。
2原因狀語從句
句型1
主句+in case+從句.(in case表示以免)如：
I will take my raincoat in case it rains.我要把雨衣帶上以免下雨。
句型2
主句+due to / because of / owning to / + the fact that +從句。如：
He did not come to school because of the fact that he was ill.由于他有病了，所以沒有來上學。
高中英語
以形式主語it引導的句型
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. 當我到那兒時，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(還有動詞appear等可這樣使用)如:
It seemed that he had been to Beijing before.他好象以前去過北京。=He seemed to have been to Beijing before.
句型3
It is / was+被強調(diào)的部分+that(who)+剩余的部分.如：
It wasn’t until he came back that I went to bed.直到他回來我才睡覺。(一定要注意被強調(diào)句型中的謂語動詞否定的轉移)。 It was because he was ill that he didn’t come to school today.只因為他有病了今天沒有來上學。(只能用because而不能用for, as 或since)
It is I who am a student. 我確實是個學生。(句中am不能用are來代替。)
句型4
It is high time (time/ about time)+ (that) 主語+should do / did+其它。(從句中的謂語動詞用的是虛擬語氣。)如:
It is high time that we should go / went home.我們該回家了。
句型5
It is / was said ( reported…)+that+從句. 如：
It was said that he had read this novel.據(jù)說他讀過這篇小說。=He was said to have read this novel.
句型6
It is impossible / necessary/ strange…that clause.(從句中的謂語用should+do / should have done，其形式是虛擬語氣。)如：
It is strange that he should have failed in this exam.真奇怪，他這次考試沒有及格。
句型7
It is + a pity/ a shame…that clause.(注意從句中的謂語動詞用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. 他直到電影結束才回來。他沒有看到這部電影真可惜。
句型8
It is suggested / ordered/ commanded /…that +clause.(從句的謂語動詞用should do, 但should可以省略。)如：
It is suggested that the meeting should be put off.有人建議推遲會議。
句型9
It is/was+表示地點的名詞+where+從句。(注意本句不是強調(diào)句型，而是以where引導的定語從句。)如：
It was this house where I was born.請比較：It was in this house that I was born.(后一句是強調(diào)句型。)
句型10
It is / was +表示時間的名詞+when+從句。(注意本句型也不是強調(diào)句型，而是以when引導的定語從句。)如：
It was 1999 when he came back from the United States. 請比較：It was in 1999 that he came back from the United States.
句型11
It is well-known that+從句。如：
It is well-known that she is a learned woman.眾所周知，她是個知識淵博的婦女。
句型12
It is +段時間+since+主語+did. 請比較：
It was +段時間+since+主語+had done. 如：
It is five years since he left here.他已經(jīng)離開這兒五年了。
It was five years since he left here.(同上)
注意下列句型的翻譯:It is five years since he lived here.他從這兒搬走已經(jīng)有五年了。
句型13
It +謂語+段時間+before+主語+謂語.( before引導的是時間狀語從句。) 如：
It wasn’t long before the people in that country rose up.沒有多久那個國家的人民就起義了。
It will be three hours before he comes back.三個小時之后他才能回來。
句型14
It is +形容詞(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 +(心理品質方面的)形容詞+of + sb. +to do.= 主語+ be +形容詞+to do.(常用的形容詞有：kind, stupid; foolish, good, wise等。)如：
It is kind of you to help me.=You are kind to help me.你真好給我提供了幫助。
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高中英語條件狀語從句的句型
