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时间状语从句

一、时间状语从句的定义

用表示时间的连词连接一个句子作状语,这样的主从复合句就是时间状语从句。连接时间状语从句的连接词有:when, before, after, while, as soon as, until, since...... 如果主句是一般将来时,从句只能用一般现在时表示将来意义。

二、时间状语从句-从属连词

引导时间状语从句的普通类从属连词有when(当……时),while(在……期间),as(当……,一边……一边……),before(在……之前),after(在……之后),since(从……以来),till/until(直到),whenever(无论何时),as soon as(一……就)

注意:在时间状语从句中,不能用一般将来时、过去将来时态或将来完成时,而要用相应的一般现在时态、一般过去时或现在完成时来代替。

例句:I’ll telephone you as soon as I get there. 我一到达那里就打电话给你。

三、时间状语从句-时间状语

1、一般现在时every …, sometimes, at …, on Sunday,

2、一般过去时yesterday, last week, an hour ago, the other day, in 1982, just now

3、一般将来时next…, tomorrow, in+时间

4、现在完成时for, since, so far, ever, never, just, yet, till/until, up to now, in past years, always, recently

5、过去完成时before, by, until, when, after, once, as soon as

6、过去进行时this morning, the whole morning, all day, yesterday, from nine to ten last evening… when, while

7、将来进行时soon, tomorrow, this evening, on Sunday, by this time, tomorrow, in two days, tomorrow evening

四、时间状语从句-时态问题

时间状语从句常用的连词有:when,as,while,before,after,since,till,until,as soon as,once。

1、时间状语从句中一般不使用将来时态,尽管主句使用将来时态,一般使用一般现在时态或现在完成时态。

例句:I'll go on with the work when I come back tomorrow.我明天回来,我将继续做这项工作。

2、till/until引导时间状语从句,主句的谓语动词如是延续动词,可使用否定或不用否定,如果是不延续动词,必须使用否定形式。

例句:He didn't go to bed until it was 12 o'clock last night.他昨晚十二点才上床睡觉。

3、as soon as, the moment, every time, each time, the minute, the instant, the day, the week, the year, the first time,next time, any time, the last time, all the time, from the time, by the time, immediately, instantly, directly等表示时间的词语,后面也可以接时间状语从句,表示“一……就……”。

4、主句使用过去进行时或过去完成时,或是was/were about to do sth.后面从句使用when从句,而且谓语动词使用一般过去时,这时when不当“当……时候”解,而当“突然”解。

五、时间状语从句的用法

when,while和as都有“当……时候”的意思,但在不同语境中意义也有所不同。

1、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。

例句: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。

根据以上例句,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。所以,when从句的动词大多是瞬时动词的说法也可以参照。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。

2、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。

3、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……”。但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:As the time went on,the weather got worse. 随着时间的推移,气候更加糟糕。

4、when, while, as 的互换

如果从句动作和主句动作同时发生,并且从句动作为延续性动词时,when,while,as可以互换使用。

5、比较while, when, as

1)as, when引导短暂性动作的动词。

例句:Just as / Just when / When I stopped my car, a man came up to me. 我刹车后,有一个人向我走来。

2)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。例句:When you have finished your work, you may have a rest. 干完活后,你可以休息一下。

3)从句表示“随时间推移”连词能用as,不用when 或while。

例句:As the day went on, the weather got worse.日子一天天过去,天气越变越坏。

6、比较until和till

until和till意义相同,肯定形式表示的意思是“做某事直至某时”,动词必须是延续性的。否定形式表达的意思是“直至某时才做某事”。动词为延续性或非延续性都可以,但until

可用于句首,而till通常不用于句首,而且Not until…在句首,主句用倒装。

时间状语从句总结

4种 句动作同时发生或从句动作先于主句。(既可引导时间点又可引导时间段) I was thin when I was a child. The film had been on when w e arrived. 2. be about to do … when … be doing …when… be on o ne’s way … when … be on the point of doing …when… had done … when… “ 在那时”“这时”,表示某件事正在发生或刚刚发生,另一动作同时发生 The telephone was ringing when I got home. I was about to go to bed when he came back. W e w ere just on the point of calling you up when you came in. 3. When 还以引导条件状语从句相当于if How can I explain it to you when / if you won’t listen. How can you get good records when you don’t study? When you read it again, the meaning will become clearer to you. 4.When还可引导原因状语从句,“既然” It was foolish of you to take a taxi when you could easily walk there in five minutes. 3种 1. 必须引导持续性动作,强调在一段时间内,主句和从句动作同时发生。 My mother was cooking while I was doing my homework. Please don’t talk so loud while others are working. 2. “然而” 表示轻微转折, 两者对比。 I like watching TV while he likes reading. 3.引导让步状语从句“ 虽然,尽管” While I admit his good points, I can see his shortcomings. 1 As I left the house , I forgot the key.我离开家时,忘记了带钥匙。 As 引导时间状语从句,强调动作并行发生,不指先后。 2. As I get older, I get more optimistic. 随着年龄的增长,我变得更加乐观“随着” 表示时间的推移。 3. He hurried home, looking behind as he w ent. 他匆匆忙忙回家,边走边往后看。“一边…一边…” 4 As he was going out, it began to rain. 当他出去时开始下雨了强调两个动作紧接着发生。 5. As a boy (When he was a boy), he was hopeless at English.

英语中时间状语从句

英语中时间状语从句 1、时间状语从句可由when,whenever,while,before,after,until,till,since,now that,once,as soon as等连词引起:Let’s wait until(till)the rain stops. 等雨停了再说。 She comes to talk to me whenever she feels lonely. 每当她感到寂寞时就来和我聊天。 As I talked,I gained some confidence. 我一面谈着一面增强了信心。 Now that I have come back,I want to help you both. 现在既然我回来了,我要帮助你们两人。 Once the train is moving,there is no way to stop it. 一旦火车开动了就没法址它停下来。 2、由every time,the moment等词引起的从句也可以用作状语

Every time I catch a cold,I have pain in my back 每回伤风我的背就疼。 Stormy applause broke forth the moment she appeared on the stage 她一在台上出现就响起暴风雨般的掌声。 He had impressed me that way the first time I met him.我第一次碰到他时,他就给我这个印象。 Be sure to call on us next time you come to town. 下次进城你一定来找我们。 3、instantly,immediately,directly等词也可引起时间状语从句 The machine will start instantly you press the button. 你一按电钮机器就会开动。 I’ll give you an answer immediately I’ve finished reading your report

时间状语从句英语语法大全

时间状语从句 要点: 时间状语从句,由以下连词引导: when while as after before as soon as since till /until by the time 在时间状语从句中,要注意时态一致。一般情况下主句是将来时的时候,从句要用一般现在时。 1.when当...的时候 Mozart started writing music when he was four years old. (当)莫扎特4岁的时候,开始写音乐作品。 2.while当...时 He visited a lot of places while he was traveling. 他在旅途中参观了许多地方。 3.as在...的同时;一边...一边... He smiled as he stood up. 他一边站起来一边笑着。 4.after在...之后 He left the classroom after he had finished his homework the other day. 前几天做完作业之后回的家。 5.before 在...之前 Mr. Brown had worked in a bank for a year before he came here. 布朗先生来这之前已经在一家银行里工作一年了。 6.as soon as 一...就... We began to work as soon as we got there. 我们一到那就开始工作。 I will write to you as soon as I get home. 我一到家就给你写信。 7.since 自。。。以来到现在 表示自过去的一个起点时间到目前(说话时间)为止的一段持续时间。主句一般用现在完成时,从句用一般过去时。 Mr Green has taught in that school since he came to China three years ago. 自格林先生来中国以来,他就在这所学校教书。 (还可以用作介词,本句从句还可以用短语:since three years ago(自三年前以来)表示。) 8 till /until 都可以作连词,连接时间状语,也可以作介词,与其它词构成介词短语,在句中作状语。They walked till /until it was dark. 他们一直走到天黑。 Xiao Ming didn’t leave home till / until his father came back. 小明直到他爸爸回来才离开家。 9. by the time 到。。。为止(所在句子的主句应用完成时) By the time he gets there , his father has already gone. 他到家的时候,他爸爸已经走了。 By the time I got to school, the class had already began. 我到校时,已经开始上课了。 时间状语从句(adverbial clause of time) 1.由when, while, 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。

时间状语从句6种用法

时间状语从句6种用法 时间状语从句是英语中常用的一种从句,它用来表示一个动作或事件发生的时间。时间状语从句可以出现在主句之前或之后,用来修饰主句中的动词或整个句子。在英语中,时间状语从句有6种用法,下面我们来一一列举。 1. 表示过去的时间 时间状语从句可以用来表示过去的时间,这种从句通常使用过去时态。例如: - I met him yesterday when I was walking in the park. - She had already left by the time I arrived. 2. 表示将来的时间 时间状语从句也可以用来表示将来的时间,这种从句通常使用一般现在时态。例如: - I will call you as soon as I finish my work. - We'll go to the beach when the weather gets warmer. 3. 表示现在的时间 时间状语从句还可以用来表示现在的时间,这种从句通常使用现在进行时态。例如:

- I am studying for my exam while my roommate is watching TV. - She is cooking dinner as we speak. 4. 表示连续的时间 时间状语从句也可以用来表示连续的时间,这种从句通常使用现在完成时态。例如: - I have been working on this project since last month. - She has been studying English for three years. 5. 表示条件 时间状语从句还可以用来表示条件,这种从句通常使用虚拟语气。例如: - If I had known about the party, I would have gone. - If it weren't for your help, I wouldn't have passed the exam. 6. 表示顺序 时间状语从句还可以用来表示顺序,这种从句通常使用现在完成时态。例如: - After I finish my homework, I will go to bed. - Before I leave, I need to finish this report.

时间状语从句

一、时间状语从句的定义 用表示时间的连词连接一个句子作状语,这样的主从复合句就是时间状语从句。连接时间状语从句的连接词有:when, before, after, while, as soon as, until, since...... 如果主句是一般将来时,从句只能用一般现在时表示将来意义。 二、时间状语从句-从属连词 引导时间状语从句的普通类从属连词有when(当……时),while(在……期间),as(当……,一边……一边……),before(在……之前),after(在……之后),since(从……以来),till/until(直到),whenever(无论何时),as soon as(一……就) 注意:在时间状语从句中,不能用一般将来时、过去将来时态或将来完成时,而要用相应的一般现在时态、一般过去时或现在完成时来代替。 例句:I’ll telephone you as soon as I get there. 我一到达那里就打电话给你。 三、时间状语从句-时间状语 1、一般现在时every …, sometimes, at …, on Sunday, 2、一般过去时yesterday, last week, an hour ago, the other day, in 1982, just now 3、一般将来时next…, tomorrow, in+时间 4、现在完成时for, since, so far, ever, never, just, yet, till/until, up to now, in past years, always, recently 5、过去完成时before, by, until, when, after, once, as soon as

时间状语从句

时间状语从句 1. 引导时间状语从句的连词 从属连词用法例句 While "与……同时,在……期间 ",从句常用延续性动词或 表示状态的词 Don’t talk loud while(as)others are working. 别人工作时,请勿大声说话。 When "当……时",表示主句的 动作和从句的动作同时或先 后发生,从句的动词可用延 续性动词,也可用非延续性 动词 It was raining when we arrived. 我们到达时,天正下着雨。 when you read the poem a second time, the meaning will become clearer to you. 当你再读一遍这首诗,你就会更清楚它的含义。 As "正当,一边……一边,随 着",表示两个动作同时发 生或某事发生时,另一个动 作发生了 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。 Till/Until 用于肯定句时,表示"直 到……为止",主句必须为 延续性动词;not...until/till表 示"直到……才",主句常 用短暂性动词 We shall wait until/till he comes back. 我们将一直等到他回来。 I didn’t leave until/till she finished her homework. 直到她完成作业我才离开。

2. when,while,as引导时间状语从句的区别 when,while,as显然都可以引导时间状语从句,但用法区别非常大。 ①when可以和延续性动词连用,也可以和短暂性动词连用;而while和as只能和延续性动词连用。 Why do you want a new job when you’ve 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?(get为短暂性动词) Sorry, I was out when you called me. 对不起,你打电话时我刚好外出了。(call为短暂性动词) Strike while the iron is hot. 趁热打铁。(is为延续性动词,表示一种持续的状态) The students took notes as they listened. 学生们边听课边做笔记。(listen为延续性动词) ②when从句的谓语动词可以在主句谓语动作之前、之后或同时发生;while和as从句的谓语动作必须是和主句谓语动作同时发生。 a. 从句动作在主句动作前发生,只用when。 When he had finished his homework, he took a short rest. (finished先发生) 当他完成作业后,他休息了一会儿。 When I got to the airport, the guests had left. (got to后发生)

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 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. 7.until 引导的从句:表示一个动作持续到某一时刻。 (1)表示“直到……”,如果主句中的谓语动词是延续性动词时,用肯定或否定形式都可以,但表达的意思不同。(2)表示“直到……才”,主句用否定式,从句用肯定。如果主句中的谓语动词是瞬间动词时,必须用否定形式。例如:They worked until it was late. 他们一直工作到天黑。

时间状语从句

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,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 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) 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。主句和从句的动作的时间关系正好与before引导的从句相反。例如: It will be four days before they come back. 他们要过四天才能回来。 Einstein almost knocked me down before he saw me.爱因斯坦几乎把我撞倒才看到我。 My father had left for Canada just before the letter arrived.我父亲恰好在信到之前去加拿大了。They had not been married four months before they were divorced. 他们结婚还不到四个月就离婚了。 After you think it over, please let me know what you decide.你仔细考虑过以后,告诉我你是怎样决定的。 After we had finished the work, we went home.完成工作之后,我们回家了。(从句用过去完成时,主句用一般过去时) 由till或until引导的时间状语从句。 till和until一般情况下两者可以互换,但是在强调句型中多用until。并且要注意的是:如果主句中的谓语动词是瞬时动词时,必须用否定形式;如果主句中的谓语动词是延续性动词时,用肯定或否定形式都可以,但表达的意思不同。till不可以用在句首,而until可以放在句首。例如: I didn't go to bed until(till)my father came back.直到我父亲回来我才上床睡觉。 It was not until the meeting was over that he began to teach me English.直到散会之后他才开始教我英语。 I worked until he came back.我工作到他回来为止。

时间状语从句用法

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, ,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”)

时间状语从句(完整版)

时间状语从句 引导时间状语从句的五类引导词 一.引导时间状语从句的从属连词(以下称引导词)很多,为方便记忆,现作以下分类: 1. 基本类 包括before, after, when, while, as, since, till, until, once, as soon as 等。如: Did anyone call when I was out? 我不在家时谁来过电话吗? We have known each other since we were children. 我们从小认识。 You’ll feel better after you take the pills. 吃完药丸后你会感到好一些。 Make sure that all the lights are off before you go to bed. 睡觉前一定要关灯。 Don’t promise him anything till we’ve had time to think about it. 在我们有时间考虑之前别答应他什么。 2. 名词类 即由名词词组充当引导词,包括the moment, the minute, the second, the instant 等(均表示“一……就……”。如 I loved you the instant (that) I saw you. 我一见到你就爱上你了。 Tell me the moment (that) you get the results. 你一拿到结果就给我打电话。 3. 副词类 即由副词充当引导词,如immediately, directly, instantly等。如: I came immediately you called. 你一打电话我就来了。 Directly I walked in the door I smelt smoke. 我一进门就闻到烟味。 4. 短语类 主是几个涉及time短语,如every time,each time,(the) next time,any time,the last time,the first time 等。如: Next time you come in, please close the door. 下次你进来,请关门。 My roof leaks every time it rains. 每次下雨,我的房顶就漏。 He felt nervous each time she spoke to him. 每次她和他讲话,他都感到紧张。 The last time we talked he said he needed another two days. 上次我们谈话时他说他还需要两天。 5. 句型类 包括no sooner…than, hardly…when 等。如: I had no sooner closed the door than somebody knocked. 我刚把门关上就有人敲门。 Hardly were the words uttered when he began to regret them. 话刚说出口他就开始后悔了。二.时态呼应 在时间状语从句中,不能用一般将来时、过去将来时态或将来完成时,而要用相应的一般现在时态、一般过去时或现在完成时来代替。如: I’ll telephone you as soon as I get there. 我一到达那里就打电话给你。 She said she would phone me as soon as she got there. 她说她一到达那里就给我电话。 Don’t get off the bus until it has stopped. 等车停稳后才下车。

(完整版)时间状语从句(全面掌握)

(完整版)时间状语从句(全面掌握) 状语从句 思考:什么是从句? I don’t know the girl in red. I don’t know the girl who is playing under the tree. 从句要素:① 至少要有两个句子 ② 要有引导词 一、什么是状语从句 状语的功用:状语说明地点、时间、原因、目的、结果、条件、方向、程 度、方式和伴随状况等。 状语一般由副词、介词短语、分词和分词短语、不定式或相当于副词的词或 短语来担当。其位置一般放在句末,但也可放在句首或句中。 I didn’t realize how special my mother was until I became an adult. You should have put the book where you found it. I didn’t go because I was afraid. 二、状语从句的分类 1.时间状语从句 2.地点状语从句 3.原因状语从句 4.条件状语从句 5.目的状语从句 6.让步状语从句 7.比较状语从句 8.方式状语从句 9.结果状语从句10.伴随状语从句 ▲ 常见考点:

考点一、主句与从句的时态呼应问题; 考点二、连接词的选择。 考点三、状语从句与非谓语动词之间的替换; 考点四、根据从句与主句的逻辑关系选用从属连词; 3、时间状语从句详解 1.引导词 (1)基本类: before ,after ,when ,while ,as ,since ,till ,until ,once ,as soon as. (2)名词类:(由名词词组充当引导词) the moment ,the minute ,the second ,the instant ,(一…就…) every time ,each time ,the first time ,the last time (3)副词类:(由副词充当引导词) immediately ,directly ,instantly (一…就…) (4)句型类: no sooner…than… ,hardly/scarcely…when…(一…就…) 2.引导词具体讲解: 当…时候:It was s ix o’clock when I got home. Sb was doing sth when… 1)when 这时Sb was about to do sth/was on the point of doing sth when… Sb had just done sth when… 既然: It was foolish of you to take a taxi when you could walk there in five minutes. 既然你能5分钟就走到那儿,再搭出租车真是太傻了。 当…时候(引导持续性动作): He fell asleep while he was reading a book. 2) while 然而(用于句中) : He likes pop music while I am fond of folk music. 虽然,尽管(用于句首) While volleyball is her main focus, she’s

时间状语从句用法

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,,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:

时间状语从句

时间状语从句 定义:用表示时间的连词连接一个句子作状语,这样的主从复合句就是时间状语从句。 连接时间状语从句的连接词有:when, before, after, while, as soon as, until, since...... 这里要注意一点的是,如果主句是一般将来时,从句只能用一般现在时表示将来意义。 时间状语从句 由when,while引导的时间状语从句。 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。 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:主现从不限;主过从四过;主将从现。 when, while和as的区别 (1)when引导的从句的谓语动词可以是延续性的动词,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。 (2)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) (3)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) 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

时间状语从句

时间状语从句 在主从复合句中修饰主句中的动词、形容词、副词等的从句叫状语从句,又由于其功能与副词非常相近,故又称作副词性从句。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。 在句子中起时间状语作用的句子称为时间状语从句。时间状语从句可以放在句首、句中或句尾。常用来引导时间状语从句的引导词有: when当……时候while当……时候 as当……时候,一边after在……之后 before在……之前since自从 ever since自从till直到 until直到as soon as一……就 every time每次once一旦 each time每次next time下次 the moment一……就by the time到…… directly一……就immediately一……就 instantly一……就the first time第一次 scarcely/hardly…when…一……就 no sooner…than一……就 1、when,while,as的用法 从属连词when,while,as都可用来引导时间状语从句,意为“在……时候”。但在具体用法上又不尽相同 (1)when既可引导一个持续动作,也可引导一个短暂动作,可用于主句动作和从句动作同时发生,也可用于从句动作先于主句动作发生。 When I lived there, I used to go to the seashore on Sundays.我住在那里时,星期天常到海滨去。 When the film ended, the people went back.电影一结束,看电影的人便回去了。 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when引导的从句。 As a young man(=When he was a young man), he was fond of hunting.他年轻时喜欢打猎。 (2)从属连词while引导的动作必须是持续性的。 The telephone rang while I was taking a bath.我在洗澡时电话响了。(3)从属连词as可表示从句和主句的两个动作交替进行或同时发生,可译为“一边……,一边……”或“随着……”。 He hurried home, looking behind as he went.他急急忙忙回家去,一边走一边回头望。 (4)如果主句表示的是短暂动作,而从句用延续性动词的进行时态表示在一段时间内正在进行的动作,此时when,while,as可互换使用。 When/While/As I was walking down the street, I came across an old friend of mine.当我沿大街行走时,碰巧遇到了我的一个老朋友。 1)在时间状语从句中,用一般现在时表示一般将来时,用一般过去时表示过去将

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