11. 高中时间状语从句及练习(含答案)
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。
时间状语从句讲解和练习(答案)
时间状语从句用句子表达一件事情或一个行为发生的时间，这个句子就叫时间状语从句。
时间状语从句根据其所表示的时间不同，所使用的连词也不同。
下面我们一起来看一下几个常见的时间状语从句：1. When引导的从句：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动作之前。
例如：I WaS goi ng OUt Whe n a ViSitor came.( 动词动作同时发生。
)我正要出门，有客人来访。
I shall tell her the good news Whe n She comes. 她来时，我将告诉她这个好消息。
小试牛刀：I found mother cooki ng for me. I got home.(when) _____________________________________ He WaS liste ning to the radio Whe n I ___________________ home. (get)2. while引导的从句：表示当……过程中”，强调某一段时间内主句和从句中谓语动词所表示的动作在同一时期发生。
由于while从句表示一个持续的行为，所以从句中要用持续性动词，并且持续性动词常用进行时态。
例如：KeeP an eye On my little SiSter while I am away. 我不在时，请照看一下我的小妹妹。
While We Were WatChing TV, Jim Came in. 我们看电视的时候，Jim 进来了。
小试牛刀：It Started to rai n. We Were playi ng football.(while) _____________________________________ LUCy WaS clea ning the room ________ Lily WaS liste ning to music.3. as引导的时间状语从句：表示当.... 的时候；一边... 一边.... ；随着.... ”，其从句的主语与主句的主语往往是同一人或物。
时间状语从句练习题及答案
时间状语从句练习题及答案精品文档时间状语从句练习题及答案由从句担任的状语，在句子中可修饰谓语、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。
状语从句是一较大的语法项目，也是近几年高考题中常见的一个重要试点。
高考中已考查了时间、让步、地点、条件、目的等状语从句，这些从句仍是今后高考热点，应作充分准备。
同时对方式状语从句也应引起重视。
时间状语从句表示时间的状语从句可由when, as, while, whenever, after, before,till , since, once, as soon as , by the time, no sooner … than, hardly … when, every time等引导。
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, youwill never forget him. No sooner had I gone to bed than I went to sleep.原因状语从句原因状语从句是表示原因或理由的，引导这类从句的最常用的连词是because, since, as , now that等，for 表示因果关系时为并列连词，语气不如because强。
e.g. He is disappointed because he didn’t get1 / 23精品文档the position.As it is raining, I will not go out. Now that you mention it, I do remember.地点状语从句引导地点状语从句的连词是where 和wherever等。
时间状语从句(含练习及答案)
以when 引导的时间状语从句- When I got home, my son had finished his homework. (主句动作发生在从句之前)- When(当...时候, 主语+did) we arrived, it was raining.- When(正当...时候，主语+be+doing) I was playing the computer games, my mum came in. - He is always nervous when he speaks to strangers.- I usually walk to school when it rains.以while 引导的时间状语从句- While I was reading, my brother was playing with his toy cars. (主从句子动作同时发生)- While/When/As he was studying in the library, I saw him. (表示一段时间时，while/when/as 可替换)while引导的从句的谓语动词必须是持续性动作:I saw him while(x) I was getting off the bus.(x)I saw him when/as I was getting off the bus.以as 引导的时间状语从句- He will grow wiser as he grows older. 随着年龄的增长，他会聪明起来。
（随着，表示时间的推移，这时，不用when/while）- He entered the room as/when/while the meeting was going on. 正当开会的时候，他走进房间。
以before引导的时间状语从句- He had washed his hands before he had dinner. (主句动作先于从句动作)- Please clean the house before you move in.以after 引导的时间状语从句- She went on holiday after she had taken the examination. (从句动作先于主句)- You can watch TV after you finish your homework.以since 引导的时间状语从句- She has been in the house since she came to the city. (主句完成时态，从句过去时)- I have taught them English since last year.以as soon as引导的时间状语从句- I will write to you as soon as I get to America. 我一到美国就会给你写信。
高中英语状语从句详解及习题精练附答案
状语从句一、知识框架二、知识梳理（一）定义在复合句中修饰主句中的动词、形容词和副词的从句叫状语从句。
状语从句根据它表达的意思不同可分为时间状语从句、地点状语从句、条件状语从句、比较状语从句、目的状语从句、结果状语从句、方式状语从句、让步状语从句和原因状语从句等。
状语从句如果放在主句前通常用逗号分开，放在主句之后一般不用逗号。
（二）九类状语从句一）时间状语从句1、从属连词分类1）基本类包括when, while, as, whenever, before, after, since, till, until, once (一旦), as soon as等。
Did anyone call when I was out?We have known each other since we were children.You’ll feel better after you take the pills.Make sure that all the lights are off before you go to bed.2）名词类包括the moment, the minute, the second, the instant, every time, each time, (the) next time, the last time, any time, the first time等。
Tell me the moment (that) you get the results.Next time you come in, please close the door.He felt nervous each time she spoke to him.The last time we talked he said he needed another two days.3）副词类如immediately, directly, instantly, presently等。
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。
状语从句句型练习(含答案)
句型练习——状语从句状语从句(adverbial clause)在句中作状语，可修饰主句中的动词、形容词和副词等。
状语从句由附属连词引导。
状语从句可放在句首或句末。
放在句首时，从句后面常用逗号；放在句末时，从句前面往往不用逗号。
一、时间状语从句1、while, when, whenever和as的用法比拟〔1〕while常表示一段较长的时间或一个过程，强调主句的动词和从句的动词所表示的动作或状态是同时发生的。
它不能表示一时性或短暂的动作。
Don't talk so loud while( as) others are working.别人工作时，请勿大声说话。
〔2〕when引导的时间状语从句，可指时间的一点，也可以指一段时间，从句的谓语动词可用终止性动词，也可用持续性动词。
when引导的从句表示的详细的时间，从句的动作和主句的动作可以同时，也可以先于主句的动作。
Whenever指任何一个不详细的时间。
It was raining when we arrived. 我们到达时，天正下着雨。
〔动作同时，指时间点〕When you read the poem a second time, the meaning will become clearer to you.当你再读一遍这首诗，你就更明晰它的含意。
〔动作有先后，指时间点，不能用while〕Come whenever you like. 你爱什么时候来就什么时候来。
〔3〕as用as时主句和从句的动作往往同时发生，具有延伸意义，一般同延续性动词连用，有时可译作“一边…一边…〞。
As time went on, his theory proved to be correct.随着时间的推移，他的理论被证明是正确的。
As〔when〕he finished the speech, the audience burst into applause.他讲话完毕的时候，听众掌声雷动。
【语法专项训练】状语从句翻译专项练习及答案
一、时间状语从句1、当我进屋时，他正在写信。
2、我们什么时间有空，我们就去那里。
3、我正在街上走着，这时忽然有人从后面拍我的肩膀。
4、天下雨的时候，他们出去了。
5、他不在的时候我在。
6、他赶快回家，不时地一边走一边向后看。
7、先做学生，再做先生。
8、比赛开始后，他到了。
9、我们一直等到他回来。
10、她到11点钟才停止工作。
11、她站在那里看着，直到看不见他的身影。
12、自从1978年以来中国发生了巨大的变化。
13、我一到上海就给你写信。
14、我刚一到家，就下雨了。
15、我们刚到车站，火车就走了。
16、我们刚开始就被叫停。
17、我每次乘船都晕船。
18、我一听到这首歌，就感到很愉快。
19、下次你来的时候，就会见到他。
二、地点状语从句1、有志者，事竟成。
2、哪里有水，哪里就有生命。
3、你可以随意到你喜欢的任何地方去。
4、无论你去哪都要遵守法律。
三、原因状语从句1、昨天我回来晚了，因为我值班。
2、既然大家都到了，我们开始开会。
3、由于他英语懂得不多，他在字典中查阅这个单词。
4、鉴于天气已经晴朗，我们可以启程了。
5、鉴于他病情严重，我们派人去请医生去了。
四、目的状语从句1、我要把你的电话号码记下来，以免忘记。
2、我把真实情况告诉你，使你能自己作出判断。
3、他们比往常更加努力工作，为了能提前完成工作。
4、多穿点衣服，以免患感冒。
五、结果状语从句1、我们把收音机的音量放大，大家都听到了新闻。
2、他十分激动，以致一句话都说不出来。
3、他说出了这么重要的理由，得到大家的谅解。
4、这是一本十分有意思的书，大家都想看。
六、条件状语从句1、如果我们不怕困难，困难就算不了什么了。
2、除非下雨，我们明天就去那里。
3、只要你努力工作，你就一定能成功。
4、万一我忘了，请提醒我一下。
5、据我所知，那本书下月出版。
七、方式状语从句1、按照我教你的画一只猫。
2、按照人家告诉你做的去做。
3、看上去她好象是生病了。
4、他的行动就好象什么也没有发生。
(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。
高中时间状语从句及练习(含解答)
高中时间状语从句及练习(含解答)状语从句是用来修饰主句中的动词、形容词或副词等的从句。
当状语从句放在主句之前时，通常需要用逗号分隔；而当放在主句之后时，则不需要逗号。
根据其意义和作用，状语从句可分为时间、原因、地点、条件、让步、目的、结果、方式和比较等九种类型。
1.时间状语从句时间状语从句用于表示主句动作发生的时间，通常由when、while、as、before、after、till (until)、once、by the time、as soon as、no sooner。
than和hardly。
when等引导词，以及名词词组XXX等构成。
其中，when表示“在……的时候”，强调“特定时间”。
例如：When spring came。
he felt like taking a trip.When he was eating his breakfast。
XXX.需要注意的是，连词when在状语从句中还有其他含义。
比如，它可以表示突然发生的事，含义为“（正在……时）忽然”；可以表示过早发生某事，意为“（还没……）就”；还可以表示“在……的情况下”，通常译为“虽然”、“既然”、“如果”等。
举个例子：I was just coming along to see you when I ran into Wilson.I hadn’t been reading for half an hour when I heard steps outside.She refuses help when (although) she has many friends.Why do you walk when (since) you have a car?How can I make them understand if they refuse to listen to me。
It's frustrating when you XXX。
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。
时间状语从句+习题练习(含答案)
专题：时间状语从句1. 引导时间状语从句的连词在下列空格中填入适当连词。
1._________he comes tomorrow,I will ask where he has been.2._________he was speaking,everybody listened carefully.3.I saw her just now_________she was getting off the train.4.Have a good look at that man________you pass him.5.It was already eight o'clock_________we got there.6.I was about to go out_________a visitor came.7.We'll go to the country at the beginning of June,_________the summer harvest will start.8.He learned to speak German_________he was in Berlin.9.Henry is in charge of the office________Mr.Smith is away.10.I listen to the recorder_________I have time.11.He had learned Chinese_________he came to China.12._________the work was done,we sat down to sum up experience.13.I haven't seen him_________he moved to the other side of the town.14.I waited________ he came back.15.I didn’t recognize him________he took off his eyeglasses.16.She likes everything to be in place________she starts to work.17.The thieves ran away_________they caught sight of the police.18.They decided to go back home_________their money ran out.19.__________I get to the airport,I will phone you to pick me up.20.They were about to leave______it began to rain.Keys:1.When2.While/When3.as4.when/as5.when6.when7.when8.while9.whi le10.whenever11.before12.After13.since14.till/until15.until16.before17.as soon as18.before19.As soon as20.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。
状语从句讲解及习题附答案
状语从句〔一〕状语从句概述〔二〕状语从句详解1. 时间状语从句2.地点状语从句3.条件状语从句4.原因状语从句5.目的状语从句6.结果状语从句7.让步状语从句8. 比拟状语从句9.方式状语从句练习一一. 单项填空1. _______ he’s old, he can still carry this heavy bag.A. ThoughB. SinceC. ForD. So2. ---Do you know if he _______ to play basketball with us"---I think he will e if he ______ free tomorrow.A. es; isB. es; will beC. will e; isD. will e; will be3. In the zoo if a child _____ into the water and can’t swim, the dolphins may e up ______ him.A. will fall; to helpB. falls; to helpC. will fall; helpD. falls; helping4. I don’t remember ________ he worked in that city when he was young.A. whatB. whichC. whereD. who5. We will stay at home if my aunt ________ to visit us tomorrow.A. esB. eC. will eD. is ing6. The police asked the children _______ cross the street ________ the traffic lights turned green.A. not; beforeB. don’t; whenC. not to; untilD. not; after7. I was late for class yesterday _______ there was something wrong with my bike.A. whenB. thatC. untilD. because8. I’ll go swimming with you if I ________ free tomor row.A. will beB. shall beC. amD. was9. In the e*am, the ________ you are, ______ the _______ mistakes you will make.A. careful; littleB. more careful; fewestC. more careful; fewerD. more careful; less10. You should finish your lessons _______ you go out to play.A. beforeB. afterC. whenD. while11. I hurried _____ I wouldn’t be late for class.A. sinceB. so thatC. as ifD. unless12. When you read the book, you’d better make a mark _______ you have any questions.A. whichB. thatC. whereD. though13. The teacher raised his voice _______ all the students could hear him.A. forB. so thatC. becauseD. in order14. He took off his coat _______ he felt hot.A. becauseB. asC. ifD. since15. It is ______ that we’d like to go out for a walk.A. a lovely dayB. too lovely a dayC. so lovely a dayD. such lovely a day16. Mary had ______ much work to do that she stayed at her office all day.A. suchB. soC. tooD. very17. _______ I felt very tired, I tried to finish the work.A. AlthoughB. BecauseC. AsD. As if18. ______ the day went on, the weather got worse.A. WithB. SinceC. WhileD. As19. ______ well you can drive, you must drive carefully.A. So long asB. In order thatC. No matter howD. The moment20. Write to me as soon as you ________ to Beijing.A. will getB. getC. gettingD. got二. 根据中文意思完成以下英语句子1. 不管他跟我开什么玩笑，我都不生气。
（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。
高中英语状语从句讲解及练习
状语从句在复合句中作状语，位置灵活。
状语从句可分为时间状语从句，目的状语从句，条件状语从句，让步状语从句，地点状语从句，原因状语从句，方式状语从句，结果状语从句。
（一）时间状语从句1.when,as,whilea.when表时间，从句既可以用延续性动词，又可以用瞬间动词。
Eg:WhenIgetthereIwillcallyou.如果when引导的时状的主语与主句的主语相同，而从句的谓语又是be动词时，那么从句中的主语与be可省。
Eg：When（youare）introuble,youcanaskherforhelp.如果when引导的时状的主语与主句的主语相同时，往往可以用“when+分词”的形式代替该状从。
Eg：WhenIcameintotheroom(Whencomingintotheroom),Ifoundthelightwasoff.b.while表时间，从句需用延续性动词，或者主句的动作发生在从句的动作进行过程中。
主句的谓语动词通常是非延续性动词。
Eg:HecameinwhileIwasreadingabook.ImetherwhileIwasinschool.c.as表时间，与when相似，但侧重强调主从句动作同在时间点或同时间段进行。
同时可表示主句的动作随着从句的动作的变化而变化。
Eg:Hejumpsashesings.Asthewindrose,thenoiseincreased.2.before(在……之前)与after（在……之后）Eg：Seemebeforeyouleave.IsawthemafterIarrived.3.till与until肯定形式表示的意思是"做某事直至某时"。
否定形式表达的意思是"直至某时才做某事"。
Eg:Waittill/untillIcallyou.等着直到我叫你。
Shedidn'tarrivetill/until6o'clock..她直到6点才到但是置于句首时只可用untill.Untilyoutoldme,Ihadheardnothingofwhathappened.直到你告诉我以前，出了什么事我一点也不知道。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
高中英语状语从句状语从句在句中作状语，修饰主句中的动词、形容词或副词等。
状语从句放在主句之前时，常用逗号分开;放在主句之后，一般不用逗号。
状语从句按其意义和作用可分为时间、原因、地点、条件、让步、目的、结果、方式、比较等9种。
1.时间状语从句时间状语从句表示主句动作发生的时间，主要由when，while，as ; before, after; till (until); once, by the time, as soon as, no sooner ... than和hardly ... when及名词词组the moment等引导。
1) when“在……的时候”; while “在……期间”; as “正当……的时候”when意为“在……的时候”，强调“特定时间”。
When spring came, he felt like a trip.When he was eating his breakfast, he heard the doorbell ring.说明：连词when在状语从句中还有如下几种含义：①表示突然发生的事，含义为“（正在……时）忽然”。
I was just coming along to see you when I ran into Wilson.I had been working a couple of months when I had a letter from Jane.②表示过早发生某事，意为“（还没……）就”。
此含义有时可用before代替。
I hadn’t been reading for half an hour when I heard steps outside.我刚读了不到半个小时就听到外面有脚步声。
I had been there little more than a week when I set to work in earnest.③表示“在……的情况下”，常可译为“虽然”，“既然”，“如果”。
She refuses help when (although) she has many friends.Why do you walk when (since) you have a car?How can I help them to understand when (if) they won’t listen to me.④后接虚拟结构，含义为“本可以，应该……”。
He stopped trying when he might have succeeded next time.They were playing when they could have been working.while意为“在……期间”，从句用持续性动词，表时间的一段，而不是一点。
While he was eating his breakfast, he heard the doorbell ring.We must strike while the iron is hot.说明：连词while在状语从句中还有如下几种含义：①意为“然而，但是”，表示前后对照，说明两种情况相反Tom is very outgoing, while Jane is shy and quiet.Some people waste food while others haven’t enough.②意为“虽然，尽管”（多放句首），从句和主句主语多为同一人或物。
While I understand what you say, I can’t agree with you.While forbidden fruit is said to taste sweeter, it usually spoils faster.虽然有人说禁果的味道更甜，但它腐烂得也更快。
③意为“只要”。
参看while引导条件状语从句。
as意为“正当”，强调同一时间里两个相继发生或变化的情况，或两个动作一前一后，有时有“随着……”的含义。
As he was eating his breakfast, he heard the doorbell ring. (强调同一时间）As I was going out, it began to rain.(强调两个动作先后发生）As spring warms the good earth, all flowers begin to bloom. (as 有“随着”的含义）2) before “在……之前”，after “在……之后”强调事件的先后关系before表示两件事的先后关系。
主句为肯定句，before引导的从句动作后发生;主句为否定句，before引导的从句动作先发生。
I started my meal before he arrived. (从句动作后发生）He didn’t arrive before I returned. (从句动作先发生）说明：在不同的结构中，连词before在状语从句中有如下几种含义。
①意为“……（之后）才”，此结构主句常用肯定式，强调主句内容持续的色彩。
It will be ten years before we meet again. 要10年后我们才能再见面。
It was evening before we reached that little town.傍晚时分我们才到达那个小镇。
②意为“（不久）……就”，用“...not long before”这一结构，强调时间的短暂It won’t be long before you regret.不久你就会后悔的。
It wasn’t long before he told me about this affair.不久他就把这事告诉我了。
③意为“不等/没有……就”。
从句常用肯定形式。
（有时从句用过去完成时，但仍表示主句的动作先发生。
）She offered me a cup of tea before I sat down.没等我坐下她就给我端上一杯茶。
I left university before I’d taken the final exams.我没有参加期末考就退学了。
④意为“刚……没多久就……”，“刚……不到（多少时间）就……”。
主句常用否定的过去完成式，表示过早发生某事。
句中的before有时可用when代替。
I hadn’t waited long before he came.我刚等候不久他就来了。
They had not been married a month before/when they quarreled.他们刚结婚不到一个月就吵架了。
after引导状语从句，用于表示主句和从句两个动作的先后关系：I found the letter long after he had gone away.After we had finished tea we all sat on the grass.为表示两个动作紧接着发生，从句可用过去时代替过去完成时：After she finished her work, she hurried to the nursery to pick up her child.I told them the news after you left,3) till/until，since, once, by the timetill与until常可换用。
但until可用于句首，till不能用于句首。
①till/until意为“直到”，用于主句为肯定句的表示持续的谓语动词，如live，last, stand, stay, wait, work等时，表示主句的动作延续到从句所表达的动作发生为止，意为“一直到……时”。
He worked until it was dark. 他一直工作到天黑。
She stood there until he had passed out of sight. 她站在那儿直到再也看不见他。
In British law the accused is presumed to be innocent until he is proved to be guilty.在英国的法律中，被告的罪状在被证实之前他被推定是无罪的。
说明：若主句为肯定句的非持续动词，只用before,表示时间上“先于”。
He applied three times before he was finally admitted to the university.He made a mistake, but he corrected the situation before it got worse.②till/until用于主句为否定句的表非持续的谓语动词，如begin，become, get up, reach, start等时，until表达的一般是“主句动作的起点”意为“直到……才”，“在……之前（不）”。
He did not get up till his mother came in.直到母亲进来时他才起床。
No man really becomes a fool until he stops asking questions. 人要是不再发问，就会变得愚蠢。
Do not start until I give the word. 接到我的命令前不要动身。
说明: 主句为否定的非持续动词，until与before均可使用，但含义略有区别：He didn’t arrive until I returned. 他直到我回来才到达。
He didn’t arrive before I returned. 在我回来之前他尚未到达。
③It was not until…that…是“not until”的强调形式，不用倒装。
It was not until he saw his mother that he realized how old she had become.直到看见母亲，他才意识到母亲已经变老了。
It was not until I had read your letter that I understood the true state of affairs.直到读了你的信，我才明白事实的真相。
since意为“自从……以来”，用于表示时间，要注意以下几点：①since从句后常用一般过去时，通常为非持续性动词，表示主句(现在完成时或现在完成进行时)动作的起始点：Electricity has been widely used since it was discovered.I have been looking forward to meeting you ever since Martin told me.②当主句用it表示“自从……以来已经有多少时间”时，谓语动词常用一般现在时,有时也可用将来时。