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状语从句的讲解就是用一句话作状语分为：时间，地点,方式，原因，结果，条件，让步，目的，比较一、时间状语从句第一次见到你一见到你我就喜欢上了你直到见到你五岁时见到你When， as, while， before， after, since, till/until， as soon as no sooner…than…scarcely…when…hardly…when… the minute the second the instant the moment by the time 截止 immediately instantly directlyeach time every time next time the first time on doing sthwhenwhile 当…时as1。
when 1）当…时/ 延续性动词短暂性动词都可用2）这时/3）届时、到时I was watching TV when my cellphone suddenly rang这时When I was five years old I could speak five languagesThe wet weather will continue tommorow when a cold front is expected to arrive届时到时注意：时间状语从句中动作发生有前后时先发生的用过去完成时When my mother came back I had already gone to bed.2。
while 1）从句动词延续性2)同时发生3）对比的意味“然而”4）趁着He taught himself while he worked in a bank 延续性动词当他在银行上班时While we were working they were having a rest.对比While they were having a discussion ， they got very confused。
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。
完整版)高中状语从句归纳状语从句是在句子中做状语的，包括时间、条件、让步、原因、目的、结果、比较、地点、方式状语从句。
时间状语从句可以由when、as、while、until、not…until、before、after、since、the minute、the moment、each (every。
next。
the first) time等引导。
在时间状语从句中，一般使用一般现在时或一般过去时来表达。
1.时间状语从句引导词当句子中有时间状语从句时，可以用when、as、while、until、not…until、before、after、since、the minute、the moment、each (every。
next。
the first) time等来引导。
这些引导词在句子中的使用有不同的侧重点和用法。
1.1 when当我们用when引导时间状语从句时，它的主语和主句的主语相同。
如果从句的谓语动词是be动词，那么从句的主语和be可以省略。
例如：When I arrived home。
I had a little rest.1.2 asas不仅可以表示“当。
的时候”，还可以表示“一面。
一面”和“随着”的意思。
例如：XXX（一面。
一面）You will XXX（随着）1.3 whileXXX表示“当。
的时候”，强调主句的动作和从句的动作同时发生。
从句一般使用进行时，动词必须是延续性动词。
例如：While we were working。
they were having a rest.While they were having a n。
they got very confused.注意：while也有对比的含义，可以解释为“然而”。
例如：XXX。
XXX.2.until和not。
untiluntil和not。
until都表示“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。
高考英语状语从句练习与讲解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 if1．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。
高中英语状语从句用法详解文档四维教育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, asI was very happy when I heard from you.收到你的时我非常兴奋。
When you deal with them, you should be cautious.跟他们打交道时，你应当郑重。
when指导时间状语从句中的谓语动词能够用非延续性动词，也可用延续性动词。
When I was young, I went to town myself.当我还年青时，我本人独自去城里。
（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，就能够用由as指导的省略句来代替when指导的从句。
高中英语状语从句用法详细解析一、定义：在句中作状语的从句是状语从句，修饰主句中的动词、形容词或副词等。
状语从句由从属连词引导，从属连词在句中不充当句子成分，只起连接作用，状语从句放在句首时，要用逗号，放在句尾时不用。
二、分类根据意义上的不同，状语从句可分为：①时间状语从句②地点状语从句③原因状语从句④目的状语从句⑤条件状语从句⑥结果状语从句⑦让步状语从句⑧方式状语从句⑨比较状语从句三、时间状语从句（一）引导时间状语从句的连词有：as, when(whenever), before, after, as soon as, until(till), since, every time, once.（二）、“as” as, when, while都有“当,,的时候”，可以互用When she was a child.While she was a child. She Lived in Paris.As she was a child.as有“一边,一边”的意思He sang as he walked.“when”When the clock struck twelve, all the lights went out.I was sleeping when she came in. 动补When we arrived at the station, the train had left.“while”主、从句动作或状态同时发生。
用while引导的从句用延续性动词，常表示较长的时间或一个过程。
While we were having supper, all the lights went out.Please keep quiet while others are studying.While I was writing letters last night, he was watching TV.when, while并列连问。
状语从句讲解语法专题复习（四）状语从句指句子用作状语时，起副词作用的句子。
它可以修饰谓语、非谓语动词、定语、状语或整个句子。
时间、地点、原因、目的、结果、条件、让步、一般可分为九大类，分别表示所以理解尽管种类较多，但由于状语从句与汉语结构和用法相似，比较和方式。
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:（时.他正作练习时我睡着了。
1．I fell asleep when he was doing his exercises间状语从句）（时间状语从句）她总是一边走一边唱。
She always sings as she walks .3．（时间状语我等到他做完活。
．I waited until he had finished his work . 4从句）不久，他就告诉我5．It was not long before he told me about this affair .这件事。
（时间状语从句）．He has worked very hard since he entered the factory自从他进厂，6工作一直很努力。
（时间状语从句）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 …when1页10 共页第地点状语从句2．where：常用引导词everywhere2页10 共页第原因状语从句3．sincesince, as, 常用引导词：because,considethat, considering that, given in 特殊引导词：seeing that, now that, that, that, ring目的状语从句4．thatorder so that, in 常用引导词：that, the purpose for in the hope that, for 特殊引导词：lest, in case, fear that，that the end to3页10 共页第结果状语从句5．…that,…that, such 常用引导词：sodegree such a extent that, to that, to the degree that, to the 特殊引导词：suchthat,条件状语从句6．unless, if, 常用引导词：cain that, suppose that, as/so long as, only if, providing/provided 特殊引导词：that on condition that, se4页10 共页第让步状语从句7．thoughif, even 常用引导词：though, although, evenn)，( 一般用在句首特殊引导词：as(用在让步状语从句中必须要倒装)，while whwhoever, wherever, that, while, whatever, ，in spite of the fact o matter …whichever5页10 共页第which, No matter who takes up the matter for me ,I 主句后。
how…)shall be very grateful.不管谁为我处理这件事，我都将非常感激。
从wh－ever Whatever happens / may happen , we shall wh－ever从句中的动(whatever not lose heart. 句词有时可以和may连whoever 无论发生什么，我们都不要失去信心。
用。
判断wh－ever引导whenever Whoever comes, he will be welcome. 的是状语从句还是名词whicheve无论谁来，都会受到欢迎。
性从句的一点是，名词r 性从句，主句中一定有however) 一个成分要在从句担任，一般从句与主句之间没有逗号。
不可将no matter与wh—ever连用8．比较状语从句常用引导词：as(同级比较), than(不同程度的比较)特殊引导词：the more …the more …; just as …，so…; A is to B what /as X is to6页10 共页第方式状语从句9．how if, 常用引导词：as, as特殊的10状语从句的简化7页10 共页第状语从句的省略①主句和从句的主语一状语从句同时具备下列两个条件:；②从致，或从句主语为it动词常可省略。
例如：be的某种形式。
从句中的主语和be句主要动词是public the be open to ) completed , the museum will When ( the museum is. next yearpossible. ) (it is e for his holiday if He'll go to the seasid。
例如：另外，比较状语从句经常省略). (is tall I'm taller than he (is ). the (is), greater the pressure The higher the temperature:现象常存在于以下五种状语从句中状语从句的简化;if, unless等引导的条件状语从句由;although, though, even if / though等引导的让步状语从句②由; when, while, as, before, after, until / till等引导的时间状语从句③由; as, as if等引导的方式状语从句④由等引导的比较状语从句。
下面针对这五种情形作一归纳。
⑤由as, than他会帮你摆,If (it is) possible, he will help you out of the difficulty.如果可能的话脱困境。
You must attend the meeting unless (it is) inconvenient to you.除非情况对你来说不方便,否则你必须出席这次会议。
As (he was) young, he learned how to ride a bike.他小时候就学会了骑自行车。
Whenever (she is) free, she often goes shopping.她有空就去逛商店。
Work hard when (you are) young, or you'll regret.少壮不努力,老大徒伤悲。
While (he was) a you ng boy, he was always ready to help others.他在孩提时代就乐于助人。
Although (he is) doing his best in maths these days, he has still got no good marks.尽管近来他一直在学数学,但他仍然没有取得好成绩。
d.连词+过去分词The concert was a great success than (it was) expected.这场音乐会出乎意料地取得了巨大成功。
He stood up as if (he were) to say something.当时他站起来好像要说什He wouldn't solve the problem even if (he were) to take charge.即使他来负责,他也解决不了这个问题。
f. 连词+介词短语8页10 共页第好像遇到了麻,trouble.她看上去很焦急anxious as though (she was) in She looked 烦。
他到美国之前就He had mastered the English language before (he was) in the USA. 懂英语了。
tips:只用as不用when或while的情况1、用于表示同一个人的两种动作交替进行，指“一边…一边…”，如：The girl sings as she goes to school.2、表示两个同步发生的动作或行为如：As time went by,she became more and more beautiful.3、表示两个动作紧跟着发生，如：As he was going out,it began to rain,4、接在名词后面表示某一个年龄段时。
如：As a young man, he was active in sports.连接词when,while,as的用法区别1、while引导的时间状语从句的谓语动词必须是可持续的，而when引导的时间状语从句的谓语动词既可以可持续的，也可以是表短暂性动作的动词。
When\While he was eating his breakfast,he heard the door bell rang.When I stopped my car,a man came up to me.(while不可用)2、从句动作发生在主句动作之前时，只能用when 引导，不可用while\as, 如：When you have finished your work,you may have a rest3、表示“随着……”,连词用as,不用when\while,如：As the election approached,the violenve got worse.4、如果主句表示的是短暂性的动作，从句用延续性动作的进行时态表示一段时间内正在进行的动作时，三者可互相交换使用。
如：When\While\As I was walking down the street,I came across an old friend of mine.till,until和not…until用法1、until\till引导时间状语从句用于肯定句中时，主句的动词时延续性动词，表示动作或状态一直持续到until\till所表示的时间，意为“某动作一直持续到某时间点才停止”，译为“直到…为止”。
