(新)高中英语状语从句讲解及练习

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状语及状语从句(语法加练习完整讲解)

结果状语从句
The problem is so difficult that it will take us time to work it out. 这道题如此难以至于我们要用很多时间才能解决。
She is such a kind girl that everyone likes her. 她非常善良，以至于每个人都喜欢她。
not that...but that...(不是因为...而是因为)
条件状语从句
If you want to succeed, you'd better work hard. 如果你想成功，最好努力工作。 I'll come unless it rains. 除非下雨，否则我一定来。 You can borrow the book as long as you promise to keep i Ming studied so hard that he caught up with the others very quickly．李明学习如此努力，结果很快赶上了其他人。
6．程度状语： I nearly forgot what he had promised．我几乎忘记了他答应的事。
(2)如果动词前有一个或几个助动词，状语位于第一个助动词之后。 He has already had his lunch．他已吃过午饭了。
(3)如果动词是be，状语就放在be动词之后。 He is always at home. 他总是在家。
3.状语位于句末，这是状语的通常位置。
We get up at six in the morning. 我们早晨六点起床。
三、状语的分类：
状语按用途可分为：地点、时间、原因、目的、结果、条件、让步、程度、方式、伴随情况等几类。

高中英语状语从句讲解与练习

高中英语状语从句讲解与练习高中英语状语从句一、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beabouttodo……when……，bedoing……when……，haddone……when……，beonone’sway……when……，beonthepointofdoing…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）则表示“当……时候”，鼓励的动作必须就是延续性的。

（2）用做同列连词，则表示相对关系“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/solongas，意为“只要”。

3、as的用法（1）则表示“当……时候”，特别强调同时出现，不所指先后。

（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。

（3）表示“一边……一边……”（4）强调两个动作紧接着发生。

（5）表示“虽然，尽管”（6）其他含义“正像，正如”，“做为”，“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）itwillbe/was时间段before通常现在时/通常过去时。

在肯定句中，意为“多长时间之后才”；在否定句中，意为“用没法多长时间就”。

5、until和till（1）与肯定句连用，必须是延续性动词。

（2）与否定句属格，必须不为延续性动词，则表示“直至……才，在……之前不……”。

特别注意：notuntil可以用作特别强调句和倒装句强调句：itis/wasnotuntil…that…倒装句：notuntil放句首时，主句要部分倒装。

根据英语时间状语从句讲解及练习(简化版)

根据英语时间状语从句讲解及练习(简化版)一、什么是时间状语从句时间状语从句是由连词引导的从句，用来表示一个动作或状态发生的时间，它可以在句子中充当状语，起到修饰或限定其他句子成分的作用。

二、几种常见的时间状语从句及用法1. when当...时候例句：He was studying in the library when the earthquake happened.译文：地震发生时，他正在图书馆研究。

2. while当...的同时例句：I was cleaning the house while my sister was cooking.译文：我正在打扫房子，而我妹妹正在做饭。

3. as soon as一...就...例句：She called me as soon as she arrived home.译文：她一到家就给我打电话。

4. before在...之前例句：Please finish your homework before you go out to play. 译文：在你出去玩之前，请完成你的家庭作业。

5. after在...之后例句：He went to bed after he watched the movie.译文：他在看完电影之后上床睡觉。

6. until直到...例句：They played basketball until it got dark.译文：直到天黑之前他们都在打篮球。

三、时间状语从句练1. _______ he finishes his work, he will join us for dinner. （when）译文：当他完成工作时，他会加入我们共进晚餐。

2. I fell asleep _______ I was reading a book. （while）译文：我边看书边睡着了。

3. We will go shopping _______ the rain stops. （as soon as）译文：一雨停，我们会去购物。

高中英语状语从句讲解及配套练习

状语从句状语从句在句中相当于副词做状语, 又叫副词性从句。

状语从句分为时间状语从句、条件状语从句、地点状语从句、原因状语从句、目的状语从句、让步状语从句、结果状语从句和比较状语从句。

掌握状语从句应当从引导词入手，注意引导词的词义,引导状语从句的引导词都有词义，所以，了解引导词的意思尤为重要。

引导词按意义分为九类: 1）时间 when , as , while , till , until , before , after , since2）地点 where3）原因 because , as , since , now that4）条件 if , unless , once . so （as） long as . in case5）让步 though , whatever （--ever ） as , even though , even if6）目的 so that , in order that7）结果 so ... that8）比较 than , as .. as9）方式 as , as if一、时间状语从句引导时间状语从句的连接词除上述外还有：1）till, not … until …, until, before, sinceDon’t get off the bus until it has stopped.He waited for his father until（till）it was twelve o’clock.It will be five years before he returns from England.常用句型：It is/was/will be …before…要过多久才……It isn’t /wasn’t/won’t be…before…没有多久就……It will be another five days before we finish this task.It is not long before I forgot it all.2）hardly / scarcely … when, no sooner … than, as soon as, once表示“一……就”3）directly, immediately, the moment, the minute that… 一……就He made for the door directly he heard the knock.4）each time, every time, by the time（到……为止）Each time he came to my city, he would call on me.注意：表示未来情况，主句用将来时，从句用现在时。

高三英语一轮复习状语从句讲义以及练习题(高考总复习,纯干货,原创)

1.状语从句概念？状语从句指句子用作状语时，起副词作用的句子。

状语从句在高考中考察基本是以翻译从句引导词为主。

2.分类以及各个从属连词用法？2.1时间状语从句(when，while，as, no t…until, since,before……)when，while，as区别：while用引导的动作必须是持续的，侧重于主句动作和从句动作相对比e.g I was cooking at noon while she was sleeping.as“一边…一边…”或着“随着”e.g He was looking behind as he walked.As times flies, the weather is getting cooler and cooler当主句表达短暂性动作，而从句表示一段时间内的延续性动作时，.用三者都可以I met Jim when/while/as I was riding in Heping Road.其他：as soon as, immediately, directly, the moment, the instant, once(一…就…)The boy burst into tears immediately he saw his mom.I will leave here as soon as I get my visa.(主将从现：if/as soon as/when/until 引导的时间状语从句)no sooner…than…; hardly…when…; scarcely…when…(一…就…, 但含有否定意味的词置于句首时，主句要部分倒装)(hardly…before…; scarcely…before…)主句用过去完成时，从句用一般过去时。

I had hardly got home when it began to rain.Hadly had I got home when it began to rain.No sooner had we reached at school than the bell went.till/untill(直到till不可以用于句首), not…until（直到…才…）注意not until强调句用法和倒装句用法。

高中英语语法专项—— 状语从句(九大状语从句详讲+配套练习)

语法专项2——状语从句【状语从句综述】由从句担任的状语，在句子中可修饰谓语（或其它动词）、形容词、副词或是整个句子，它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。

一、时间状语从句1.表示时间的状语从句可由when, as, while, whenever, after, before, till (until), since, once, as soon as (或the moment ), by the time, no sooner … than, hardly (scarcely) … when, every time等引导。

例如：When I came into the office, the teachers were having a meeting.当我进入办公室时，老师们正在开会。

He started as soon as he received the news. 他已得到这个消息，就出发了。

Once you see him, you will never forget him.一旦你见了他，你就不会忘记他。

No sooner had I gone to bed than I went to sleep.我一上床就睡着了。

2.when, while, as的区别这三个词都可以用作连接词，表示时间关系，但有所区别。

(1)when表示时间关系时，意思常常是“当(在)……的时候”。

主句和从句中的动作或事情可以同时发生，也可以先后发生。

例如：When we were at school, we went to the library every day.我们在求学的时候，每天都到图书馆去。

(2)while 用作连接词表示时间关系时，意思也是“当(在)……的时候”，主句中的动作或事情在从句中的动作或事情的进展过程中发生。

它有时可与when通用，但它只能指一段时间(a period of time)，而不能指一点时间的(a point of time)。

高中英语状语从句用法解析(含练习和答案)

高中英语状语从句用法解析英语语法状语从句类型综述状语从句主要用来修饰主句或主句的谓语。

一般可分为九大类，分别表示时间、地点、原因、目的、结果、条件、让步、比较和方式。

尽管种类较多，但由于状语从句与汉语结构和用法相似，所以理解和掌握它并不难。

状语从句的关键是要掌握引导不同状语从句的常用连接词和特殊的连接词即考点。

现分别列举如下:1．时间状语从句常用引导词：when, as, while, as soon as, while, before, after, since , till, until特殊引导词：the minute, the moment, the second, every time, the day，the instant, immediately , directly, no sooner … than, hardly …when, scarcely … whenI didn’t realize how special my mother was until I became an adult.While John was watching TV, his wife was cooking.The children ran away from the orchard(果园) the moment they saw the guard.No sooner had I arrived home than it began to rain.Every time I listen to your advice, I get into trouble.2．地点状语从句常用引导词：where特殊引导词：wherever, anywhere, everywhereGenerally, air will be heavily polluted where there are factories.Wherever you go, you should work hard.3．原因状语从句常用引导词：because, since, as, since特殊引导词：seeing that, now that, in that, considering that, given that, considering that, inasmuch as, insomuch asMy friends dislike me because I’m handsome and successful.Now that everybody has come, let’s begin our conference.The higher income tax is harmful in that it may discourage people from trying to earn more.Considering that he is no more than 12 years old, his height of 1.80 m is quite remarkable.4．目的状语从句常用引导词：so that, in order that特殊引导词：lest, in case, for fear that，in the hope that, for the purpose that, to the end thatThe boss asked the secretary to hurry up with the letters so that he could sign them.The teacher raised his voice on purpose that the students in the back could hear more clearly.5．结果状语从句常用引导词：so … that, so… that, such … that,特殊引导词：such that, to the degree that, to the extent that, to such a degree that,He got up so early that he caught the first bus.It’s such a good chance that we must not miss it.To such an degree was he excited that he couldn’t sleep last night.6．条件状语从句常用引导词：if, unless,特殊引导词：as/so long as, only if, providing/provided that, suppose that, in case that, on condition thatWe’ll start our project if the president agrees.You will certainly succeed so long as you keep on trying.Provided that there is no opposition, we shall hold the meeting here.7．让步状语从句常用引导词：though, although, even if, even though特殊引导词：as(用在让步状语从句中必须要倒装)，while ( 一般用在句首)，no matter …，in spite of the fact that, while, whatever, whoever, wherever, whenever, however, whicheverMu ch as I respect him, I can’t agree to his proposal.尽管我很尊敬他，我却不同意他的建议。

高考状语从句讲解和练习题

⾼考状语从句讲解和练习题定义——在复合句中由从句表⽰的状语称作状语从句，状语从句由从属连词引导，也可以由⼀个起连词作⽤的词组引导，有时甚⾄不需要连词⽽直接和主句连接起来。

类型——时间、地点、原因、结果、条件、⽬的、让步、⽅式、⽐较状语从句。

1.引导词when, while, as, as soon as, once, before, after, every time, each time, since, whenever, ever since, until ,till等。

2.whenever, each time, every time的⽤法。

注：whenever=no matter whenevery time / each time 每次，whenever 每当······时，表⽰习惯性、经常性的动作。

Whenever we met with difficulties, they came to help us.Each time he came to town he would visit our school.Eevery time I went to his house, he was out.注：whenever=no matter whenwhenever既可以引导时间从句也可引导名词性从句，no matter when只可以引导时间状语从句。

It does not matter whenever the party begins.3.before的汉英表达1）before的基本含义是“在·····以前”The train had left before he got to the station.注意：与before对应的是after引导的时间状语从句，表“在·····之后”。

状语从句讲解及习题附答案

状语从句讲解及习题附答案（一）状语从句概述定义状语从句用作状语，是起副词作用的句子。

位置状语从句可以放在主句之前，也可以放在主句之后，时间、条件、原因和让步状语从句放在句首时需要用逗号和主句隔开。

分类根据其作用可以分为时间、地点、原因、条件、目的、让步、方式和比较等状语从句。

作用它可以修饰谓语、非谓语动词、定语、状语和整个句子。

（二）状语从句详解1. 时间状语从句引导词用法示例when 意为“当…的时候”。

When引导从句的谓语动词可以是延续性动词，也可以是瞬间动词。

并且when有时表示“就在那时”A liar is not believed when he speaks the truth.说谎者讲真话时也没有人相信。

When he arrives, I’ll call you. When you laugh and smile, your body relaxes.while 意为“在…的时候，在…的同时”。

While引导从句的谓语动词必须是延续性的，发生时间较长，并强调主句和从句的动作同时发生（或者相对应）。

While有时还可以表示对比。

While I was standing at the window, I saw several boys running along the street.While John was watching TV, his wife was cooking.as 意为“一边…一边…”。

As引导的动作是延续性的，发生时间较短，一般用于主句和从句动作同时发生；as也可以强调一前一后。

The writer was angry as he was travelling on a train to London because someone had invaded his “space”.He smiled as he stood up.after 意为“在…之后”。

英语宾语从句定语从句状语从句讲解与练习

e.g. When I came into the office, the teachers were having a meeting.
He started as soon as he received the news.
Once you see him, you will never forget him.
l在许多带有复合宾语的句子中，that引导的宾语从句经常移到句子的后面，而用it做形式宾语。
例：We think it wrong that he told a lie to everyone (我认为他向每一个人撒谎是错误的)
B，由连词if、whether引导的表示是否的宾语从句。Whether，if在从句中不做句子的成分，一般情况下，whether和if可以替换。
He asked me whether I was a teacher.
They wanted to know what they can do for us.
三，宾语从句的时态。
宾语从句的时态受主句的限制，即：主句是一般现在时态，从句根据实际情况而定。主句是一般过去时态，从句用相应的过去的时态。如果从句的动作发生在主句之前，则从句要用过去完成时态。例:
例：I don’t know what I should do next.
I con’t know what to do next.
He didn’t know where he would live.
He didn’tknow where
定语从句
在主从复合句中充当定语的句子是定语从句，它在句中修饰名词或代词。定语从句一般由关系代词that, which, who(m), whose和关系副词when, where, why等引导。被定语从句修饰的词叫做先行词。定语从句通常放在先行词的后面作后置定语。在中考试题中，主要考查引导定语从句的关系代词和关系副词。

(完整版)高中时间状语从句语法及练习

(完整版)高中时间状语从句语法及练习时间状语从句是一个复合句结构，用来表示时间关系。

在高中英语研究中，时间状语从句是一个重要的语法点。

本文将为你详细介绍高中时间状语从句的语法规则，并提供一些练题目。

一、时间状语从句的定义和用法时间状语从句是用来表示时间关系的从句，它可以在句子中充当状语。

时间状语从句通常使用连词来引导，常见的引导词有：when, while, before, after, as, since, until, etc. 时间状语从句可以出现在主句的前面或后面。

二、时间状语从句的语法规则1. 当主句的谓语动词表示将来时，时间状语从句中的谓语动词可以使用一般现在时代替一般将来时。

例：I will call you when I arrive home.（主句使用了将来时，从句中使用了一般现在时）2. 当主句的谓语动词表示过去时，时间状语从句中的谓语动词可以使用一般过去时或过去完成时代替。

例：She had finished her homework before she went to bed.（主句使用了过去时，从句中使用了过去完成时）3. 当时间状语从句表示一个惯性的动作或一个客观事实时，从句中的谓语动词可以使用一般现在时。

例：I always go for a walk when it is sunny.（从句中表示惯性的动作）三、时间状语从句的练题目1. 选择正确的连词填空：― She fell asleep _______ she finished her book.1) while 2) because 3) after― We will start the meeting _______ everyone ar rives.1) before 2) since 3) until2. 改写句子，将主句的谓语动词改为表示将来时：― I will call you when I have time.3. 改写句子，将主句的谓语动词改为表示过去时或过去完成时：― He went to bed before he finished his work.以上是关于高中时间状语从句的语法规则及练习题目的详细介绍。

高中英语状语从句知识点及练习

高中英语---状语从句一、概念：状语通常由副词、介词短语、动词不定式、分词和从句等担当。

?? ???状语从句主要用来修饰主句或主句的谓语。

一般可分为九大类，状语从句的关键是要掌握引导不同状语从句的常用连接词和特殊的连接词。

二、分类及使用1.?时间状语从句?(1)?when ?①.when引导的时间状语从句，其动词既可以是延续性动作的动词，也可以是瞬间性动作的动词，可以表示主句的动作和从句的动作同时发生，或从句的动作发生在主句的动作之前。

?when?you?apply?for?a?job,?you?must?present?your?credentials.?②?when还可表示just?then（正在那时）的意思，此时所引导的从句放在主句之后。

?we?were?about?to?start?when?it?began?to?rain.?(2)?as引导的时间状语从句?as侧重表示主句和从句的动作并相发生,翻译成一边，一边。

? We?were?having?breakfast?as?she?was?combing?her?hair.(3)?while “在…期间”，所引导的从句的动作是延续性的，并表示和主句的动作同时发生。

? ?(4)?before引导?①?before“在…之前”?I’ll?be?back?before?you?have?left.??②?before“…之后才”?It?may?be?many?years?before?we?meet?again.??(5)?as?soon?as/once/directly/the?instant等引导as?soon?as?是最常见的表示“一…就”的从属连词，其他连词还有immediately，instantly，the?instant?(that)，the?minute(that)?，the?moment(that)等，它们通常都可与as?soon?as换用。

高中英语状语从句讲解以及练习

高中英语状语从句以及练习状语从句1. 定义：在复合句中由从句表示的状语称作状语从句，它可以用来修饰谓语（包括非谓语动词）、定语或状语，或是整个句子。

2. 考点：(1) 状语从句连接词的选用(2) 状语从句的时态3. 分类：（9种）时间状语从句，地点状语从句，原因状语从句，条件状语从句，让步状语从句，结果状语从句，目的状语从句，方式状语从句，比较状语从句4. 重点，难点，考点A．时间状语从句：（1）表示同时性，即主从句的谓语动作同时发生或几乎同时发生。

其连词有：when （当……的时候）, while（当……的时候）, as（当……的时候）, once（一旦……）as soon as（一……就……）, the time（当……的时刻）, the moment（当……的时刻）, by the time（到……时候为止）, next time(下次),the first time(第一次……的时候),the last time(上次……的时候)，immediately（一……就……）,instantly（一……就……）,directly（一……就……）以下关联词引起的句子中，前面常用过去完成时，后面用一般过去时hardly /scarcely…when…= no sooner…than…（一……就……）Strike while the iron is hot.趁热打铁。

While I am washing the floor, you can be cleaning the windows.我洗地板的时候，你可以擦窗户。

As / When I came home, I met an old schoolmate of mine.我回家的时候遇到了我的一位老同学。

I’ll r ing you up as soon as I get an answer from him.我一有他的答复就给你打电话。

Once you see him, you will never forget him. 你一旦见过他，就不会忘了他的。

状语从句及练习附答案

状语从句（adverbial clause）复习要点：掌握句法功能，记住连接词语法意义：状语从句是复合句中的一种，整个从句作主句的状语，修饰主句中的谓语动词、形容词、或副词。

置于句首时，状语从句后面一般要有逗号隔开；如果状语从句置于句尾，则从句一般不用逗号。

按照所作的状语和意义可分为时间、地点、原因、目的、结果、条件、让步、方式和比较等九种状语从句。

具体如下：一、时间状语从句（Adverbial Clauses of Time）时间状语从句通常由when,whenever,as,while,before,after,assoon as,since,once,no sooner...then,hardly/scarcely...when,tiLl/until 以及the moment,directly,immediately,the second,thefirst time,next time,every time,等引导。

1.由when,as,while 引导的状语从句：1）when 引导时间状语从句，表示当···，其谓语动词可以是延续性的，也可以是非延续性的，其作用最广泛。

When spring comes,trees turn green,When it rains,I usually go to work by taxi.When we were having lunch,the light went out.I will ring you up when I return.When she pressed the button,the lift stopped.He was eating his breakfast when the doorbell rang.be about to do...when...“就在那/这时，（突然）另一个动作发生了，在这儿只能用when。

高中英语状语从句练习与讲解含答案

高中英语状语从句练习与讲解状语从句状语从句在句中相当于副词做状语,又叫副词性从句。

状语从句分为时间状语从句、条件状语从句、地点状语从句、原因状语从句、目的状语从句、让步状语从句、结果状语从句和比较状语从句。

掌握状语从句应当引导词入手，注意引导词的词义,引导状语从句的引导词都有词思,所以,了解引导词的意思尤为重要。

引导词按意义分为九类:1)时间when , as , while , till , until , before, after , since2)地点where3)原因because , as , since , now that4)条件if , unless , once .so (as)long as . in case5)让步though , whatever (--ever) as, even though, even if6)目的so that, in order that7)结果so ... that8)比较than, as .. as9)方式as , as if例如:1．I fell asleep when ( as , while ) he was doing his exercises .他正作练习时我睡着了。

（时间状语从句）2．When he arrived in Shanghai , his mother met him at the station .他到上海时，他妈妈到车站接他。

（时间状语从句）3．She always sings as she walks .她总是一边走一边唱。

（时间状语从句）4．I waited until he had finished his work .我等到他做完活。

（时间状语从句）5．It was not long before he told me about this affair .不久，他就告诉我这件事。

（时间状语从句）6．He has worked very hard since he entered the factory .自从他进厂，工作一直很努力。

（完整版）状语从句练习

（完整版）状语从句练习状语从句状语从句：指把一句子当着副词作状语时，修饰动词、或整个句子；根据它在句中的作用可分为时间、地点、原因、条件、目的、结果、让步、方式和比较等从句；状语从句前一般由连词（从属连词）引导，也可以由词组引导。

它常位于句首；若位于句中，常用逗号与主句隔开；位于句尾时可以不用逗号隔开。

一、时间状语从句1. 通常由以下连词弓丨导：when / while / as/ after/ before/ as soon as/ since/ till /until / by the time2. 在时间状语从句中，要注意时态一致。

（主将从现）1）.when 当…..的时候: Mozart started writing music when he was four years old.2）.while 在…期间： He visited a lot of places while he was traveling.3）.as 在…的同时；一边…一边...: He smiled as he stood up.4）.after 在...之后: He left the classroom after he had finished his homework the other day.5）.before 在...之前Mr. brown had worked in a bank for a year before he came here.6）.as soon as 一...就... We bega n to work as soon as we got there. I will write to you as soon as i get home.7）.since 自...以来（至U现在） Mr green has taught in that school since he came to china three years ago.8）till /until 直至U : They walked till /until it was dark. Tom didn ' t leave home till / until his father came back.难点---- as/ when/ while的辨析as when while都表示主、从句动作同时发生，三者差异如下：as表示一边…一边"/随着，强调两个动作同时进行，I am cooking as I am singing.when 当…..的时候，从句动作可在主句动作"之前"或"之后"发生lit was raining hard when （as） i got there. 还可表and then; at that moment （正在那个时候/突然）：I am leaving for Beijing when the phone rang.while 在…期间从句动作为延续性动词或状态词I am cooki ng while I am si ngi ng然而（（表转折，对比）she thought I was talking about her daughter, while I was talking about my daughter.Mother was worried because little Alice was ill, especially as （when/ while） father was away.二、条件状语从句要点：状语从句由连词if （如果）、unless （=if not）（除非）弓I导。

高考英语状语从句讲解及练习课件

He is not so/as clever as his brother.
3
2
1
4
9.比较
_____ they had worked for along time, everyone looked tired. A． While B． After C． Unless D． For He has been a teacher ______ he came to the country. A． since B． until C． as D． when
He couldn't come ______ he wanted to. A． as B． because C． although D．for _____ you gave a party and no one come, what would you do? A． Although B． If C． Unless D．When
8． The man put on a overcoat ______ keep himself warm. A． that B． so that to C． in order that D．in order to 9． He has changed so much ______ I can hardly recognize him. A． as B． so that C． that D．but
17 He always thinks I'm wrong, ______ I may say. A． no matter whatever B． whatever C． what D． that 18． ______ , Mother will wait for him to have dinner together. A． However late is he B． However he is late C． However is he late D． However late he is

重点高中状语从句综合讲解及练习测试

精心整理高中英语状语从句例如：我一到家就开始下雨了。

Hardly/ScarcelyhadIgothomewhenitbegantorain.NosoonerhadIgothomethanitbegantorain.2)Notuntil…在句首，主句用倒装。

例如：直到19世纪初，人类才知道热能是什么。

直到我开始工作，我才认识到了我已蹉跎了几多岁月。

Notuntiltheearlyyearsofthe19thcenturydidmanknowwhatheatis.NotuntilIbegantoworkdidIrealizehowmuchtimeIhadwasted.2.When,as,while用法区分：1)当从句的动作发生于主句动作之前，只能用when引导这个从句，不可用as或while。

例如：Whenyouhavefinishedyourwork,youmayhavearest.2)如从句表示"随时间推移"，连词能用as，不用when或while。

例如：Asthedaywenton,theweathergotworse.★练习stweek,shelivedaquietandhappylifeinthatarea.A.Notuntiltheearth-movingmachinescameB.Theearth-movingmachinescameC.Untiltheearth-movingmachinescameD.Thencametheearth-movingmachines2.—whenhasthecountrybeenopentointernationaltrade?—1978,Isuppose.A.SinceB.InC.FromD.After3.Theprojectwon’tcarryonwecangetfinancialaidfromthegovernment.A.unlessB.thoughC.whetherD.until4.Thenumberofwomendyingfrombreastcancerhasfallentoitslowestlevel____recordsbeganin1971.A.whenB.beforeC.sinceD.afterA.thatA.theinstant10.★注意：For和because用法区分For引导的从句并不说明主句行为发生的直接原因，只是提供一些补充说明，且不可位于主句前。

高中英语状语从句讲解及练习(含答案)

状语从句状语从句在句中作状语，可分为：时间、条件、让步、原因、目的、结果、比较、地点、方式状语从句。

一、时间状语从句引导时间状语从句的连词有：when, as, while, until, not…until, before, after, since, the minute, the moment, each( every, next, the first) time等。

时间状语从句中一般用一般现在时或一般过去时。

1．When , while, as都可解释为“当```的时候”但侧重点有所不同。

1)WhenEg: When I arrived home , I had a little rest.注意点：when 从句的主语与主句主语相同，谓语动词是be 动词时，从句主语和be可以省略。

Eg: When (she was) walking along the street, she met her class teacher.2)AsAs 除了表示“当```的时候”，还可表示为“一面```一面”，“随着”Eg: He sang as he danced.(一面```一面)You will grow wiser as you grow older.(随着)3)While表示“当```的时候”强调主句的动作和从句的动作同时发生，从句一般用进行时，从句动词必须是延续性动词。

Eg: While we were working, they were having a rest.While (they were) having a discussion, they got very confused.注意点：while 有对比的含义，解释为“然而”。

eg: I prefer black tee, while he likes coffee.2．until, not…until表示“直到```才”,在肯定句中主句常用延续性动词；在否定句中主句常用短暂性动词。