(完整版)时间状语从句练习
时间状语从句练习
1. It was quiet ________ those big trucks started coming through the town.
A. before
B. after
C. until
D. unless
2. It seemed only seconds ________ the boy finished washing his face.
A. when
B. before
C. after
D. even if
3. Hardly had he reached the school gate ________ the bell rang.
A. while
B. when
C. as
D. as soon as
4.We were told that we should follow the main road _____ we reached the central railway station.
A. whenever
B. until
C. while
D. wherever
5. I recognized you ________ I saw you at the airport.
A. the moment
B. while
C. after
D. once
6. He was about to go to bed ________ the doorbell rang.
A. while
B. as
C. before
D. when
7.________I listen to your advice, I get into trouble.
A. Every time
B. When
C. While
D. Until
8. _____ John was watching TV, his wife was cooking.
A. As
B. As soon as
C. While
D. Till
9. The children ran away from the orchard(果园) ______ they saw the guard.
A. the moment
B. after
C. before
D. as
10. No sooner had I arrived home _____ it began to rain.
A. when
B. while
C. as
D. than
11. Several weeks had gone by _____ I realized the painting was missing.
A. as
B. before
C. since
D. when
12. It _____ long before we ____ the result of the experiment.
A. will not be; will know
B. is; will know
C. will not be ; know
D. is; know
13. –What was the party like?
--Wonderful. It’s years _____ I enjoyed myself so much.
A. after
B. before
C. when
D. since
14. The new secretary is supposed to report to the manager as soon as she_____.
A. will arrive
B. arrives
C. is going to arrive
D. is arriving
15. _____ got into the room _____ the telephone rang.
A. He hardly had; then
B. Hardly had he; when
C. He had not; then
D. Not had he; when
16. No sooner had he finished his talk _____ he was surrounded by the workers.
A. as
B. then
C. than
D. when
17. –Did you remember to give Mary the money you owed her?
--Yes, I gave it to her _____ I saw her.
A. while
B. the moment
C. suddenly
D. once
18. I thought her nice and honest _____ I met her.
A. first time
B. for the first time
C. the first time
D. by the first time
19. He will have learned English for eight years by the time he _____ from the university next year.
A. will graduate
B. will have graduated
C. graduates
D. is to graduate
20. The moment the 28th Olympic Games _____ open, the whole world cheered.
A. declared
B. have been declared
C. have declared
D. were declared
答案：CBBBA DACAD BCDBB CBCCD
状语从句的省略
一般说来省略现象多出现在下列五种状语从句中：由 when ,while ,as ,before, after , till, until, once等引导的时间状语从句;由whether ,if , unless 等引导的条件状语从句;由 though , although ,even if ,whatever等引导的让步状语从句;由 as ,than 等引导的比较状语从句;由as, as if , as though 等引导的方式状语从句。上述状语从句在省略时，并非任何成分都可以省略而是遵循下面原则：
(1)当状语从句的主语与主句的主语一致时，可以省略状语从句的主语和系动词be ，
这时从句中可出现如下结构：
①连词(as, as if , once)+ 名词
如：Once (he was)a worker ,Pang Long now becomes a famous singer .庞龙曾经是个工人，现在变成一位著名的歌手。
②连词( though, whether , when)+形容词
如：Work hard when (you are) young ,or you'll regret.趁年轻要努力学习，要不然你会后悔的。
③连词(whether, as if ,while )+介词短语
如：He looked everywhere as if (he was)in search of something .他到处看似乎在找什么东西。
④连词(when , while , though )+ 现在分词
如：While (he was) holding talks with President Hu Jintao , US President George W. Bush thanked China for its important role in the Six-Party Talks.美国总统布什在与胡锦涛主席会谈时，感谢中国在六方会谈中起的重要作用。
⑤连词(when ,if ,even if ,unless ,once ,until, than , as ) + 过去分词
如：The exhibition is more interesting than (it was) expected .这次展览比被预料的有趣的多
⑥连词(as if ,as though ) + 不定式
如：Olympic gold medallist hurdler Liu Xiang opened his lips as if (he were) to speak .奥林匹克金牌获得者跨栏运动员刘翔张开嘴好象要说什么。
(2)当从句的主语是 it，谓语动词中又含有系动词be 时，可以把it和系动词be一起省略。此时构成连词(if , unless ,when , whenever)+形容词的结构。如：Unless (it is) necessary ,you'd better not refer to the dictionary.如果没有必要，你最好不要查字典。
各种状语从句的省略现象列举如下：
一、时间状语从句中的省略
When (she was) very young, she began to learn to play the piano. 她很小时，就开始学习弹钢琴。
While (I was) at college, I began to know him, a strange but able student. 我在上大学时就开始认识他，一个奇怪但有能力的学生。
When arriving, send me a telegram. (When you arrive, send me a telegram.) 到达之后，来个电报。
Before leaving, turn off all the lights. (Before you leave, turn off all the lights.) 走之前，请关闭所有的灯。
Don’t come in until (you are) asked to. 不叫你请你不要进来。
Whenever (it is )possible, you should come and help. 不管什么时候只要有可能就来帮忙。
You should let us know the result as soon as(it is) possible. 你应尽快让我们知道结果。
注：as在引导时间状语从句时，没有这种省略现象。我们不可说As walking, she found a nice shining thing on the ground.
二、地点状语从句中的省略
地点状语从句的省略常用下列结构：where(ver) possible, where(ver) necessary,
Lay these books where possible you can find them easily. 把这些书放在你可能容易找到的地方。
Put in articles wherever necessary in the following passages. 在下列文章中需要的地方填入冠词。
三、条件状语从句中的省略
常用的句型是：if necessary, if possible, if true, if anyone等。如：
Send the goods now if (they are) ready. 货物如果准备好了，请送过来。
He will come if (he is) asked. 如果叫他来，他就来。
If (it is) necessary, ring me at home. 如果有可能，朝我家里打电话。
Come along with me if (it is) possible. 如果有可能和我一起去吧.。
If (it is) true, this will casue us a lot of trouble. 如果是真的，这会给我们带来很多麻烦。
There are few people nowadays, if (there are) any, who remember him. 很少有人能记起他。
You should stay where you are, unless (you are) asked to leave. 你应呆在你现在的地方不动，除非叫你动。
四、让步状语从句中的省略
He is a good man, though sometimes (he is) rather dull. 他真是个好人，尽管有时有点无聊。
Even if (I am ) invited to, I won’t go to such a bad lecture. 即使邀我去，我都不想听如此坏的报告。
五、比较状语从句中的省略
She can play the piano just as wonderfully as you (do). 她钢琴弹的我你弹的一样好。
She has finished the work earlier than (it has been ) expected.
初中英语时间状语从句讲解及练习
语法 29时间状语从句 一、什么是状语从句 状语就是在一句话中表示该句子的时间、地点、方式、原因、条件等成分。状语从句就是用一个从 句表示状语。状语从句根据它表达的意思不同，可分为时间、地点、原因、目的、结果、条件、方式、比较、让步等九类。 与状语一样，状语从句的位置比较灵活。既可置于主句之前（通常用逗号与主句隔开），也课置于主句之后（不需要用逗号与主句隔开），有时甚至可以置于主句之中。 二、时间状语从句 1. 主句和从句同时发生，这类从句由从属连词when, while, as引导。 He was hungry when he came home. I was crying while everyone was laughing. As I walked out, he walked in. as, when, while, 的区别 ① as强调从句的动作与主句动作同时发生及持续，具有at the same time的意思 他继续往下谈的时候，越来越兴奋。 as还可以表示一边??一边??，强调从句和主句中两个动作交替进行或同步进行。 他们边走边聊。 as还有“ 随着”的含义 随着春天的到来，天气暖和起来。 ② when 强调动作点的特定时间，具有at the time that 的意思 当老师走进来的时候，我们都站起来了。 ③ while 表示较长的期间，具有during the time that 的意思 当我在这的时候，我很安全。 2.主句发生在从句之前，这类从句由从属连词before, until 引导 ,before 意为“ 在---之前” until 在肯定句中意为“直到 --- 为止”，在否定句中意为“直到 --- 才”。从句既可置于主句前，也可置 于主句之后。 回家之前我必须干完所有的活。
时间状语从句讲解和练习
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 going out when 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 when she comes.她来时，我将告诉她这个好消息。 小试牛刀：I found mother cooking for me. I got home.(when)_______________________________________ He was listening to the radio when 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 rain. We were playing football.(while)_______________________________________ Lucy was cleaning the room Lily was listening 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。 例如：She sang as she worked. 她一边工作一边唱歌。=She was singing as she was working. I saw him as he was getting off the bus. 正当他下公共汽车时, 我看见了他。 小试牛刀： we walked, we talked. You will grow wiser you grow older. 4．before引导的从句：一般表示主句的动作发生在从句动作之前。 例如：I didn’t know any English before I came here. 我到这儿来之前，一点英语都不懂。 例如：I had written my report before my father came back. 小试牛刀：He bought the ticket he went to see the film. 5．after引导的从句：表示主句的动作发生在从句动作之后。 例如：After he locked the door, he left. 他锁上门后，就走了。 After he had finished his work, he played a game of chess with his friend. 他做完工作后，和朋友下了一盘棋。 小试牛刀：I will go out to play basketball with you. I finish my homework.(after) _______________________ _ He left the classroom he had finished his homework the other day. 6．since引导的从句：表示“自从……以来”，从句中的动词一般表示动作的起点，用过去时。主句中的动词表示动作延续的情况，一般用现在完成时。如果主句中的动词表示的不是延续的动作而是表示目前的状态，可用一般现在时。 例如：Since he met this good friend, he has made great progress in his studies. 自从遇见了这个好朋友，他已在学习上取得了巨大的进步。 例如：It is twenty years since she joined the Party. 她入党二十年了。（主句中的动词表示的是状态，用现在时。） 小试牛刀：it is five years since we last time.（meet） Mr green has taught in that school since he (come) to China three years ago.
(完整word版)高中英语状语从句用法详细解析
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。when和while都可用作并列连问，连接并列分句。When表示“就在……的时候”, while意反而，可是，表示转折。
初中英语状语从句知识点总结
初中英语状语从句知识点总结(一） 用来修饰主句中的动词，形容词或副词等而充当状语的从句叫做状语从句。状语从句常用从属连词来引导,与主句连接起来。若置于句末,则前面不加逗号。根据意义和作用，状语从句可分为时间原因条件等几种。下面我们就来分析一下这几种状语从句。 1时间状语从句 时间状语从句常用从属连词wheｎ,aｆtｅｒ，unｔil,as soon as，等来引导。 当主句是祈使句或谓语动词是一般将来时态或情态动词时,其时间状语从句中的谓语动词常用一般现在时态表示将来发生的动作或存在的状态。这就是我们常说的“主将从现”。 如:Ｐlease cａll me ｗheｎ yｏu ｇeｔｔｈere．当你到那时,请给我打个电话。 I ｗill write tｏ you ａs ｓｏｏn as I arrｉｖe in Beｉjing.我一到北京就给你写信。 <温馨提示>siｎce引导时间状语从句表示“自从…以来”，从句中的动词一般表示动作的起点，用过去时;而主句的动作延续的情况则用一般现在时或现在完成时。常用的句型为： It hａs beｅn/is+一段时间+ｓｉnｃe+过去时。 如：I hａs ｂeｅｎ/is three yeａrs since ｗe meｔ laｓt ｔｉｍe.自从我们上次见面,已经三年了。 2条件状语从句 引导条件状语从句的连词或词组有：if(如果),unless(除非),as ｌｏnｇ as(只要）等。如果主句是将来时，条件状语从句也用一般现在时来表示。 如：I will ｓtａy at home ｉf it raiｎs tomorrｏｗ.如果明天下雨,我就待在家。 You can’t learn Englisｈweｌl unｌess you woｒk ｈard． 除非你努力学习，否则是学不好英语的。 <温馨提示>由ｉf引导的条件状语从句，若从句表达的是与现在事实相反的事实,则常用虚拟语气,即用过去时态表示(如果涉及到ｂe动词，一律都用wｅre)。此时,主句则用过去将来时。
初中时间状语从句语法及练习(全)汇编
状语从句 什么是状语： 句子中修饰动词、形容词等的句子成分叫状语，用来从地点、时间、原因、目的、结果、条件、让步、比较、方式和伴随状况等方面修饰说明谓语。 e.g. He speaks English very well.（副词作状语） e.g. He is playing under the tree.（介词短语作状语） e.g. I come specially to see you.（不定式作状语） e.g. If I am not busy tomorrow,I will play football with you.（从句作状语） e.g. Having had a quarrel with his wife,he left home in a bad temper.（分词作状语） 状语从句： 状语从句就是在复合句里起状语作用的从句，可以表示时间、地点、原因、目的、结果、让步、比较、方式、条件等。引导状语从句的连词叫做从属连词。状语从句的位置可以在句首，也可以在句末。放在句首时，从句后面常用逗号与主句隔开；放在句末时，从句前面往往不用逗号。 If it’s fine tomorrow, I wil l go with you. I will go with you if it’s fine tomorrow. 状语从句分类：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、结果状语从句 6、条件状语从句 7、让步状语从句 8、比较状语从句 9、方式状语从句 时间状语从句 从属连词：when, while, as, before, after, till/until, since, whenever, as soon as（一……就）…… 时态：主将从现，主情从现，主祈从现 一、When/while/as（当…时候）
时间状语从句练习
时间状语从句练习 时间状从句练习 ( ) 1. While she ____ TV in the sitting room, the bell _____. A. watches, rings B. is watching, rang C. was watching, rang( ) 2. I ____ you the news as soon as you ____ Xi’an. A. will tell, reach B. tell, will arrive in C. will tell, will get to( ) 3. Li Ping was tired yesterday, so he ___ his mother came back from work in the afternoon. A. slept until B. didn’t sleep until C. went to bet until( ) 4. I don’t know if Mr. Wang ___ .If he_, please let me know. A.will come, will come B. comes, will come C. will come, comes( ) 5. We’ll go for a picnic if it ____ this Friday A. won’t rain B. isn’t raining C. doesn’t rain( ) 6. Wang Lin will come to see you ____ he reaches this city. A. before B. while C. as soon as( ) 7. --- Will you come to the dinner party? --- I won’t come unless Jenny ____. A. will invited B. is invited C. invited( ) 8. If you ____ carefully, you ____ the report well. A. will listen, will understand B. will listen, understand C. listen, will understand
时间状语从句讲解讲课教案
（adverbial clause of time） 概念：在复合句中，由时间连接词引导的状语从句叫做时间状语从句。(在复合句中，要注意主句和从句的时态大多都要保持一致。） 1.由when, while, as，after,before,since,untill,引导的时间状语从句。例如： When you think you know nothing, then you begin to know something.当你以为自己一无所知的时候，你就是在开始知道一些事物了。 When truth is buried under the ground it grows, it chokes, it gathers such an explosive force that on the day it bursts out , it blows up everything with it.当真理被埋在地下的时候，它在生长，它感到压抑，它蓄存着这么一种爆炸性力量，一旦冒出，它就会炸破一切！ Strike while the iron is hot. 趁热打铁。 You can feel the air moving as your hand pushes through it. 当你的手在空气中挥动的时候，你就能感觉到空气在流动。 Our headmaster laughed as she spoke.我们的校长边谈边笑。 主要时态：主过从过；主将从现；主句为一般现在时，从句不受影响。 编辑本段when, while和as的区别 when引导的从句的谓语动词可以是延续性的动词，又可以是瞬时动词。并且when 有时表示“就在那时”。例如： When she came in, I stopped eating.她进来时，我停止吃饭。(瞬时动词) When I lived in the countryside, I used to carry some water for him. 当我住在农村时，我常常为他担水。（延续性的动词） We were about to leave when he came in.我们就要离开，就在那时他进来了。 While引导的从句的谓语动作必须是延续性的，并强调主句和从句的动作同时发生（或者相对应）。并且while有时还可以表示对比。例如： While my wife was reading the newspaper, I was watching TV. (was reading 是延续性的动词，was reading和was watching同时发生) I like playing football while you like playing basketball.我喜欢踢足球，而你喜欢打篮球。（对比） As表示“一边……一边”，as引导的动作是延续性的动作，一般用于主句和从句动作同时发生；as也可以强调“一先一后。例如： We always sing as we walk.我们总是边走边唱。（as表示“一边……一边”）As we was going out, it began to snow.当我们出门时，开始下雪了。（as 强调句中两个动作紧接着先后发生，而不强调开始下雪的特定时间） 2.由before和after引导的时间状语从句。注意before引导的从句不再用否定式的谓语，并且当before引导的从句位于主句之后，有时译成“就，才”。还要注意主句和从句之间的时间关系。当主句用将来时，从句总是用现在时；如果before 引导的主句谓语用的是过去完成时，则从句动词多用一般过去时，这样以便体现动作发生的先后。After表示主句动作发生在从句动作之后。主句和
时间状语从句用法
要注意主句和从句的时态大多都要保持一致。） 1.由when, while, ,just ,just as, as，after, before, since, until, as soon as,引导的时间状语从句。例如： When you think you know nothing, then you begin to know something. 当你以为自己一无所知的时候，你就是在开始知道一些事物了。 When truth is buried under the ground ，it grows, it chokes, it gathers such an explosive force that on the day it bursts out , it blows up everything with it. 当真理被埋在地下的时候，它在生长，它感到压抑，它蓄存着这么一种爆炸性力量，一旦冒出，它就会炸破一切！ Strike while the iron is hot. 趁热打铁。 You can feel the air moving as your hand pushes through it. 当你的手在空气中挥动的时候，你就能感觉到空气在流动。 Our headmaster laughed as she spoke. 我们的校长边谈边笑。 主要时态：主现从不现；主过从四过；主将从现。 when, while和as的区别 when引导的从句的谓语动词可以是延续性的动词，又可以是瞬时动词；动作既可以 和主句的动作同时发生，又可以在主句的动作前后发生。并且when有时表示“就在 那时”。 例如： When she came in, I stopped eating.她进来时，我停止吃饭。(瞬时动词) When I lived in the countryside, I used to carry some water for him. 当我住在农村时，我常常为他担水。（延续性的动词） We were about to leave when he came in.我们就要离开，就在那时他进来了。While引导的从句的谓语动作必须是延续性的，并强调主句和从句的动作同时发生 （或者相对应）。并且while有时还可以表示对比。 例如： While my wife was reading the newspaper, I was watching TV. (was reading是延续性的动词，was reading和was watching同时发生) 。 I like playing football while you like playing basketball. 我喜欢踢足球，而你喜欢打篮球。（对比） As表示“一边……一边”，as引导的动作是延续性的动作，一般用于主句和从句动 作同时发生；as也可以强调“一先一后。例如： We always sing as we walk.我们总是边走边唱。（as表示“一边……一边”）As we were going out, it began to snow.当我们出门时，开始下雪了。 （as强调句中两个动作紧接着先后发生，而不强调开始下雪的特定时间）
八年级时间状语从句教案
2013年8 年级下教案 第几讲: 9 教学课题：Module 8 Public holidays 教学目标：1..课文中重点单词、词组、句子的理解与掌握 2.课文与单词的朗读与翻译要求掌握 3语法：时间状语从句 教学重点：课文与单词的朗读与翻译要求掌握 教学难点：语法：时间状语从句 教学过程: 一．Greetings 二．Dictation 1Words 2 phrases 3 sentences: 三．语法——时间状语从句 定义:英语中可以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。时间状语从句常用when, as, while, before, after, since, till, until, as soon as等连词来引导。 1.由when引导的时间状语从句 When意为“当…的时候”，when引导的从句的谓语动词可以是延续性的动词，又可以是瞬间动词。Eg：When the teacher came in, the students stopped talking. He knocked at the door , when my mother was sleeping. 2.由while引导的时间状语从句“与…同时，在…期间”，谓语动词必须是延续性动词。EG：Lucy was cleaning the room while Lily was listening to music. 3. 由before/after 引导的时间状语从句，before“在…之前”，after“在…之后” Eg：He went to the office before he visited Mr. Zhong. I called Betty after I finished the homework. 4. 由until引导的时间状语从句，“直到…为止”，not until “直到…才” Eg：He stayed in the room until his mother came back . We didn’t begin the meeting until the boss came. 5. 由as soon as 引导的时间状语从句，“一…就” Eg：I took out the notebook as soon as the class began. 四．时间状语从句要注意的几个地方 （1）例如： It was raining hard（rain hard 下大雨）when got to school yesterday. While he was doing his homework, the telephone rang. As he walked along（沿着走）the lake, he sang happily. He had learned a little Chinese before he came to China. After he finished middle school, he went to work in a factory. (2)在时间状语从句里，通常不用将来时态，用现在时态表示将来的动作或状态。例如：I’ll ring you up as soon as I get to New York. I will tell him everything when he comes back. He won’t believe it until he sees it with his own eyes. (3)在带有till或until引导的时间状语从句的主从复合句里，如果主句用肯定式，其含义是“一
高中时间状语从句和练习[含答案解析]
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 liste n 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.
高考英语语法知识点 专题27 时间状语从句
考点27 时间状语从句 高考频度：★★★★★ 考向一 when/while/as引导的定语从句 一、when引导的时间状语从句 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，而且可以表示主句的动作和从句的动作同时发生，或者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. 当你申请工作时，你必须递交你的有关证件。（同时） When the stude nts heard the teacher’s footsteps, they all atopped talking.当学生们听到老师的脚步声时，他们都停止了讲话。（从句动作发生在前） 2. when还可表示just then（正在那时，突然）的意思，此时其所引导的从句只放在主句之后。 be about to do ... when ... 正要去做某事，突然…… be doing ... when ... 正在做某事，突然…… be on the point of doing ... when ... 正在做某事，突然…… We were about to start when it began to rain. 我们正要动身，突然天下起雨来。 The game had hardly/scarcely/barely begun when it started raining. 比赛刚刚开始就下起雨来。 二、while引导的时间状语从句 while表示＂在某一段时间里＂或＂在……期间＂，其所引导的从句的动作是延续性的，并侧重表示和主句的动作同时发生。 When the teacher paraphrased the text in English, the students listened attentively and took notes. 当老师用英语解释课文时，学生们聚精会神地听并做着笔记。
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 弓丨导时间状语从句的连词有： whe n, as, while, un til, not …un til, before, after, sin ce, the minute, the mome nt, 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) When Eg: 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 Eg: When (she was) walk ing along the street, she met her class teacher. 2) As As 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， 从句动词必须是延续性动词。 Eg: While we were work ing, they were havi ng a rest. While (they were) havi ng a discussi on, they got very con fused. 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; 常用短暂性动词。 肯定句：I waited un til midni ght. 否定句：I did not leave un til midni ght. 注意点： 1) not until 在句首，主句用倒装 eg: Not un til you had expla ined how did I man age to do it. 2) It is not until …that ?引导的强调句 It was not un til it was dark that he came back. 3. the minute, the moment, each time 都可表示“一 ''' 就''' ” eg: The worker recog ni zed the type of the machi ne the mome nt he saw it. 注意点： the minute, the moment, each ( every, next, the first) time 作连词不禾口 when 连用。 4. Hardly/scarcely …when, no sooner …than, as 表示为as" — '''就''' ” eg: I had hardly/scarcely got home whe n it bega n to rain. I had no sooner got home tha n it bega n to rain. It bega n to rain as soon as I got home. 注意点： Hardly/scarcely …when, no sooner …th 位于句首，主句用倒装 be 可以省略。 从句一般用进行时, 在否定句中主句
初中英语状语从句讲解
初中英语状语从句讲解 1.时间状语从句 2. 条件状语从句 3. 原因状语从句 4. 结果状语从句 5. 比较状语从句 6. 目的状语从句 7. 让步状语从句 8. 地点状语从句 2.用来修饰主句中的动词，副词和形容词的从句叫状语从句。根据其含义状语从句可分为时间状语从句，地点状语从句，条件状语从句，原因状语从句，结果状语从句，比较状语从句，目的状语从句，让步状语从句。 1. 时间状语从句 (1)时间状语从句常用when, as, while, before, after, since, till, until, as soon as等连词来引导。例如： It was raining hard when got to school yesterday. While he was doing his homework, the telephone rang. As he walked along the lake, he sang happily. He had learned a little Chinese before he came to China. After he finished middle school, he went to work in a factory. (2)在时间状语从句里，通常不用将来时态，用现在时态表示将来的动作或状态。例如： I'll ring you up as soon as I get to New York. I will tell him everything when he comes back. He won't believe it until he sees it with his own eyes. (3)在带有till或until引导的时间状语从句的主从复合句里，如果主句用肯定式，其含义是“一直到……时”，谓语动词只能用延续性动词。如果主句用否定式，其含义是“直到……才……”, “在……以前不……”, 谓语动词可用瞬间动词。例如： The young man read till the light went out. Let's wait until the rain stops. We won't start until Bob comes. Don't get off until the bus stops. 2. 条件状语从句 (1)条件状语从句通常由if, unless引导。例如： What shall we do if it snows tomorrow? Don't leave the building unless I tell you to. (2)在条件状语从句里，谓语动词通常用现在时态表示将来的动作或状态。例如： I'll help you with your English if am free tomorrow. t be late unless he is ill. 'He won (3)“祈使句 + and (or)+ 陈述句”在意思上相当于一个带有条件状语从句的
初中时间状语从句语法及练习
英语时间状语从句讲解 （一）when, while 和as 引导时间状语从句的用法 一、when 的用法 如果只从现象来看，when 从句用的最多的是一般过去时，而主句的时态没有限制,根据具体情况而定。 1. When he was a child he was always trying out new ideas. 3. Were you writing when the teacher came in? 老师进来的时候，你在写信吗？ 4. Sorry, I was out when you called me. 对不起，你打电话来的时候我出去了。 when 从句的重点不在动作本身发生的状态，而只是把它作为一个时间点，所以when 多数情况下用的是一般过去时，则不用正在进行时。因为如果用正在进行时，它表示的就是一段时间而不是一个时间点了。根据这一点，有的文章补充说：when 从句的动词大多是瞬时动词。这种说法也可以参照。 实际上，when 从句也可以有其它的时态，但几乎也不用进行时，因为它也只是作为一个时间参照点。例如： 2. When he had finished his homework, he took a short rest. 3. Why do you want a new job when you have got such a good one already? 二、while 的用法 相比于when 来说，while 从句的侧重点就不一样了。while 从句的侧重点在于描述动作正在发生的状态，它的意思是：当while 事件正在发生的时候，另一件事如何如何。所以，while 从句一般用的是正在进行时。而另一件事的状态没有硬性的要求，根据具体情况而定。例如： 1. While my wife was reading the newspaper, I was watching TV. 2. While Jim was mending his bike, Lin Tao came to see him. 3. While they were talking, the bell rang. 正在他们谈话的时候，上课铃响了。 从时间的角度来看，while 表示的是一段时间，是一个过程。这是while 的侧重点。因此，如果含有“一段时间”的含义的时候，就可以用while。 6. Strike while the iron is hot. 趁热打铁。 这句话中，是说趁着铁是热的这段时间，赶紧打铁。如果换成when 意思就变了，相当于说铁只热了一下，打一下，然后铁就冷了。这显然不符合文意。 再例： —I'm going to the post office. —While you're there, can you get me some stamps? 三、as 的用法 as 从句表示的也是一件事情正在发生，另一件事也正在进行当中。但与while 从句不同的是，as 从句用的一般不用正在进行时，而只是一般过去时。as 从句一般可以翻译成“边……边……”。例如： 1. As my mother sang those old songs, tears ran down her cheeks. 2. The students took notes as they listened. 学生们边听课边做笔记。 3. As we talked on, he got more and more excited. as 表达的事件，往往只是主句动作发生的背景或条件时，as 只是一个次要的时间说明，不像while 从句有强调while 动作本身的意思。因此，as 常常翻译成“随着……”之意。 例如： 1. As the time went on，the weather got worse. 随着时间的推移，气候更加糟糕。
英语时间状语从句讲解与练习(完整版)
英语时间状语从句讲解与练习 英语时间状语从句讲解与练习 when, while 和as 引导时间状语从句的用法 这三个词的意思很简单，都有“当……时候”的意思。但学生经常会问三个词的区别在哪儿，特别是在做选择题的时候。别说是学生，就我个人而言，做这样的选择题要保证百分之百的正确也是不可能的。现根据大量的实例和个人的思考，做一点小结，供大家参考。 一、when 的用法 如果只从现象来看，when 从句用的最多的是一般过去时，而主句的时态没有限制,根据具体情况而定。 1. When he was a child he was always trying out new ideas. 他小时候就常常试验一些新的设想。 2. When she came into my room, I was just reading a book. 她走进我房间时，我正在看书。 3. Were you writing when the teacher came in? 老师进来的时候，你在写信吗？ 4. Sorry, I was out when you called me. 对不起，你打电话来的时候我出去了。 5. He was on the point of leaving when someone knocked at the door. 他正要走，这时有人敲门。
6. I thought of it just when you opened your mouth. 就在你要说话的时候，我也想到了。 7. I had hardly[scarcely] closed my eyes when someone knocked at the door. 我刚一闭上眼，就有人在敲门了。 根据以上的例句，我们可以总结出一点：when 从句的A事件，相当于另一个事件B发生的时间点。也就是说，when 从句的重点不在动作本身发生的状态，而只是把它作为一个时间点，所以when 多数情况下用的是一般过去时，则不用正在进行时。因为如果用正在进行时，它表示的就是一段时间而不是一个时间点了。根据这一点，有的文章补充说：when 从句的动词大多是瞬时动词。这种说法也可以参照。 实际上，when 从句也可以有其它的时态，但几乎也不用进行时，因为它也只是作为一个时间参照点。例如： 1. When I got to the airport, the guests had left. 当我赶到飞机场时，客人们已经离开了。 2. When he had finished his homework, he took a short rest. 当他完成作业后，他休息了一会儿。 3. Why do you want a new job when you have got such a good one already? 你已经找到如此好的工作，为何还想再找新的？ 4. You shall borrow the book when I have finished reading it.