高中英语条件状语从句的句型
高中英语状语从句经典例句
高中英语状语从句经典例句状语从句在句中起状语作用，修饰主句中的动词、形容词或副词等。
状语从句位于句首时，常用逗号与主句隔开。
以下是高中英语状语从句的一些经典例句：●时间状语从句：When I got home, my family were already having dinner.（当我到家时，我的家人已经在吃晚饭了。
）While I was walking home, I saw a cat in the tree.（当我步行回家时，我看到一只猫在树上。
）As soon as I finish my homework, I will go to bed.（我一完成作业，就去睡觉。
）●条件状语从句：If it rains tomorrow, we will not go to the park.（如果明天下雨，我们就不去公园。
）Unless you study hard, you will not pass the exam.（除非你努力学习，否则你将无法通过考试。
）As long as you come back before 10 o'clock, you can go out.（只要你在10 点之前回来，你就可以出去。
）●原因状语从句：Since you are tired, you should take a rest.（既然你累了，你应该休息一下。
）Because he was ill, he didn't go to school yesterday.（因为他病了，所以昨天他没有去上学。
）As the weather is so hot, we decide to go swimming.（由于天气太热，我们决定去游泳。
）●目的状语从句：In order that he can pass the exam, he studies very hard.（为了能通过考试，他学习非常努力。
高中英语状语从句讲解及练习(含答案)
condition that 等。条件状语从句中如果主句是将来时，条件状语从句用一般现在时。 1. unless 和 if … not
unless 相当于 if … not
eg: You will fail unless you study hard.
You will not fail if you study hard. 注意点：
4． Hardly/scarcely … when, no sooner … than, as 表so示on为a“s 一 ```就 ``` ”
eg: I had hardly/scarcely got home when it began to rain.
I had no sooner got home than it began to rain.
引导原因状语从句的连词有： because, since, as , now that ,considering that, for the reason that ,
due to the fact that,owing to the fact that 等
1． because
because语气最强，通常用于回答 why 提出的问题 注意点：
It began to rain as soon as I got home. 注意点： Hardly/scarcely …when, no sooner …tha位n于句首，主句用倒装
eg: Had I hardly/scarcely got home when it began to rain.
He wrote the name down for fear that he should forget it.
Better take more clothes in case the weather is cold.
高中英语状语从句用法详解
状语从句用法详解在主从复合句中修饰主句的动词、形容词、副词等的从句叫状语从句。
一般可分为：时间状语从句、地点状语从句、原因状语从句、目的状语从句、结果状语从句、条件状语从句、让步状语从句、比较状语从句、方式状语从句。
I 时间状语从句：起时间状语作用的从句。
（时间状语从句位置灵活，可以在句首，也可在句末）常用来引导时间状语从句的引导词有：when, while, as, after, before,until/till, since, as soon as, immediately, the moment, every time, whenever等。
1.when, while, as1) when“当......的时候”，表示主从句的谓语动作同时发生或先后紧接着发生。
I was very happy when I heard from you.收到你的信时我非常高兴。
When you deal with them, you should be cautious.跟他们打交道时，你应该谨慎。
when引导时间状语从句中的谓语动词可以用非延续性动词，也可用延续性动词。
When I was young, I went to town myself.当我还年轻时，我自己独自去城里。
（延续性动词）When I lived in country, I used to carry some water for him.我住在农村时，常常为他担水。
（延续性动词）When he received the letter, he'll tell us.当他接到信后，他会告诉我们的。
（非延续性动词）When the fire broke out, all the students were sleeping soundly.火灾发生时，所有的学生正在熟睡。
（非延续性动词）注意：当when引导的时间状语从句为系表结构，而且其主语和主句的主语一致，其表语又是一个名词时，就可以用由as引导的省略句来代替when引导的从句。
高中英语状语从句详解表格例句
状语从句状语是用来修饰动、形、副词的句子成分。
由副词，介词短语，分词，分词短语，不定式，从句来充当。
可以表示地点，时间（伴随），原因，目的，结果，条件，让步，程度，方式，比较。
位置可在句首、中、末。
状语从句---------●时间状语从句：when, while, as, before, after, since, till, until, by the time, as soon as,once,immediately, directly, instantly, the moment, the minute, the time, the day, each time, every time, any time, on doing sth, on one’s+ noun., no sooner…than, hardly…when, scarcely…when,●地点状语从句：where, wherever,●原因状语从句：because, since, as, now(that), seeing that, considering that, in that, for, ●目的状语从句：so, so that, in order that, in case, for fear that, lest●结果状语从句：so, so…that…, such…that…●条件状语从句：if, unless, as long as, so long as, in case, if only●方式状语从句：as, (just) as…so, as if / as though●让步状语从句：though, although, as, even if, even though, whether, while, whoever,whatever, whichever, whenever, wherever, however, no matter who/ what/ which/ when/ where/ how,。
高中英语虚拟语气的十大句型
高中英语虚拟语气的十大句型虚拟条件句：条件状语从句是非真实情况，在这种情况下要用虚拟语气。
1．条件从句与现在事实不一致，其句型为：句型1：If ＋主语＋过去时，主语＋should (could, would, 或might) ＋动词原形(1) If I were you, I would study hard.(2) If it rained, I would not be here now.2．条件从句与过去事实不一致，其句型为：句型2：If ＋主语＋had＋过去分词，主语＋should（could, would, 或might）＋have ＋过去分词(3) If the doctor had come last night, the boy would have been saved.(4) If I had not studied hard, I would have failed in the exam last term.3．条件从句与将来事实不一致，其句型为：句型3：If ＋主语＋过去时/ should ＋动词原形/ were to＋动词原形，主语＋should (could, would, 或might) ＋动词原形(5) If it should rain tomorrow, we would stay at home.(6) If I were to go to the moon one day, I could see it with my own eyes.(7) If you missed the film tonight, you would feel sorry.注意问题：1．If条件句中绝对不可以出现would。
2．根据句中的时间状语，有时可能出现“混合虚拟”的情况，即主句可能是现在的情况，条件句也许是发生在过去的情况，但都要遵守上述句型。
如：(8) If you had studied hard before, you would be a college student now and you would graduate from a college in four years’time. 3．条件句中如果出现were, had, should可省去if，将主语与这些词倒装。
条件状语从句
条件状语从句一．条件状语从句的概念条件状语从句，即在某种条件下，一件事情可能发生。
在英语中由连接词if或unless等引导的状语从句叫做条件状语从句。
条件是指某一件事情实现之后（状语从句中），一件事情（主句）才能发生，通常译作“假如，只要，如果”等意思。
条件状语从句中，主从句的时态要遵循“主将从现”的原则。
即，主句是将来时态时，从句用一般现在时代替将来时态。
二.条件状语从句的引导词1.If conj . 如果，假如If you ask him，he will help you．如果你请他帮忙，他会帮你的。
If you fail in the exam，you will let him down．如果你考试不及格，你会让他失望的。
2.unless conj.除非,若不,除非在……的时候（if ...not...）You will fail to arrive there in time unless you start earlier.如果你不早点动身,你就不能及时赶到那儿。
Unless it rains, the game will be played.除非下雨,比赛将照常进行。
3.so/as long as conj.只要as long as,so long as（1）表示时间，意思是“多久......就多久”。
You can keep the book as long as you like。
这本书你爱看多久就看多久。
During the holidays，I like to stay in the countryside as long as I can.假日里，我喜欢呆在乡下，能呆多久就呆多久。
（2）表示条件，意思是“只要”。
例如:As long as you tell the truth，I’ll try to help you.只要你告诉我实情，我会尽力帮助你。
You may take this book away so long as you return it on time.只要你按时归还，就可以把这本书拿走。
高中英语条件状语从句
条件状语从句
由引导词if或unless引导的状语从句叫做条件状语从句。
在英语里条件是指某一件事情实现之后，其它事情才能发生，通常译作“假如”。
在含有条件状语从句的复合句中，表示将来时态，主句是一般将来时态,祈使句或情态动词，从句要用现在时态,跟着if后的那句话是从句。
引导条件状语从句最常用的连词是if,由if引导的条件状语从句表示在某种条件下某事很可能发生。
if 引导的条件句有真实条件句和非真实条件句两种:
真实条件句：叙述真实可能发生的事情
eg.If you fail in the exam,you will let him down.
非真实条件句：虚拟语气的一种，表示与实际已发生事实相反：
eg.If I were you, I would invite him.
另一个常用连词为unless,大多数时候意思与if not 相近：
eg.Let's go out for a walk unless you are too tired.
If you are not too tired, let's go out for a walk.
好了经过这些讲解，不知道大家对条件状语从句有没有了初步的认识呢？其实对于这类语法，大多数学习者都是熟悉的，平常在口语，阅读，或写作中都会经常遇到此类句子，只是并不知道系统的语法，所以大家要做的就是对号入座，然后在脑中形成一个只是系统，这样才能真正做到夯实基础。
高中英语虚拟语气的十大句型
高中英语虚拟语气的十大句型虚拟条件句：条件状语从句是非真实情况，在这种情况下要用虚拟语气。
1．条件从句与现在事实不一致，其句型为：句型1：If ＋主语＋过去时，主语＋should (could, would, 或might) ＋动词原形(1) If I were you, I would study hard.(2) If it rained, I would not be here now.2．条件从句与过去事实不一致，其句型为：句型2：If ＋主语＋had＋过去分词，主语＋should（could, would, 或might）＋have ＋过去分词(3) If the doctor had come last night, the boy would have been saved.(4) If I had not studied hard, I would have failed in the exam last term. 3．条件从句与将来事实不一致，其句型为：句型3：If ＋主语＋过去时/ should ＋动词原形/ were to＋动词原形，主语＋should (could, would, 或might) ＋动词原形(5) If it should rain tomorrow, we would stay at home.(6) If I were to go to the moon one day, I could see it with my own eyes.(7) If you missed the film tonight, you would feel sorry.注意问题：1．If条件句中绝对不可以出现would。
2．根据句中的时间状语，有时可能出现“混合虚拟”的情况，即主句可能是现在的情况，条件句也许是发生在过去的情况，但都要遵守上述句型。
如：(8) If you had studied hard before, you would be a college student now and you would graduate from a college in four years’time.3．条件句中如果出现were, had, should可省去if，将主语与这些词倒装。
高中英语语法：状语从句篇
高中英语语法：状语从句篇一、时间状语从句1、when的用法（1）when既可引导一个持续性动作，也可引导一个短暂性动作，可用于表示主句和从句动作同时发生或从句动作先于主句动作，有时还可表示从句动作后于主句，意为“当。
时候”。
（2）when在be about to do......when......，be doing.....when.....，had done。
when。
，be on one’s way。
when。
，be on the point of doing。
when。
等结构中，作“那时突然”讲。
（3）when “既然、鉴于；尽管，虽然（位于主句之后）；如果”2、while的用法（1）表示“当。
时候”，引导的动作必须是延续性的。
（2）用作并列连词，表示相对关系“然而”。
（3）引导让步状语从句，相当于although,意为“虽然”，位于主句前。
（4）引导条件状语从句，相当于as/so long as，意为“只要”。
3、as 的用法（1）表示“当。
时候”，强调同时发生，不指先后。
（2）说明两种正在发展或变化的情况，表示“随着”，表示时间的推移。
（4）强调两个动作紧接着发生。
（5）表示“虽然，尽管”。
（6）其他含义“正如，正像”，“作为”，“由于，因为”。
4、before的用法（1）一般意为“在。
之前”“。
才”，“。
就”“还没有。
”“免得”“不知不觉”“宁可，宁愿”，“否则，要不然”。
（2）It + will be/was + 时间段+before+一般现在时/一般过去时。
在肯定句中，意为“多长时间之后才”；在否定句中，意为“用不了多长时间就”。
5、until和till（1）与肯定句连用，必须是延续性动词。
（2）与否定句连用，必须是非延续性动词，表示“直到。
才，在。
之前不。
”。
注意：not until可用于强调句和倒装句强调句：It is/was not until…that…倒装句：not until 放句首时，主句要部分倒装。
高中英语条件状语从句的句型
【导语】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。
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高中英语条件状语从句的句型
在高中英语的学习中，学生会学习到很多的重要的句型，下面本人的本人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。
高中英语条件状语从句的句型介绍
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
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/ 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。