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。

I didn't work until he came back.他回来我这才开始工作。

Please wait until I arrived.在我到达之前请等我。

由since引导的时间状语从句。

since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。一般情况下，从句谓语动词用一般过去时，而主句的谓语动词用现在完成时。但在It is +时间+since从句的句型中，主句多用一般现在时。例如：

I have been in Beijing since you left. 自从你离开以来，我一直在北京了。

Where have you been since I last saw you? 自上次我和你见面以后，你到哪里去了？

It is four years since my sister lived in Beijing. 我妹妹不在北京住有四年了。

It is five months since our boss was in Beijing.我们老板离开北京有五个月了。

★由as soon as, 等引导的时间状语从句。（了解）

这些连词都表示“一……就”。例如：

I will go there directly I have finished my breakfast. 吃完早饭，我立即到那里去。

The moment I heard the news, I hastened to the spot.我一听到消息，马上赶到了出事地点。

As soon as I reach Canada, I will ring you up. 我一到加拿大，就给你来电话。

注意：hardly(scarcely, rarely)…when / before, no sooner…than相当于as soon as之意。主句用过去完成时，从句用

一般过去时。当hardly, scarcely, rarely和no sooner位于句首时，主句应用倒装语序。例如：

He had no sooner arrived home than he was asked to start on another journey. 他刚到家，就被邀请开始另一旅程。No sooner had the sun shown itself above the horizon than he got out of bed to commence work.太阳刚从地平线上升起，他就起床劳动去了。

Hardly had I sat down when he stepped in.我刚坐下，他就进来了。

He had hardly fallen asleep when he felt a soft touch on his shoulder.这个阿拉伯人刚要入睡就感到肩膀上被轻轻一触。

★由by the time引导的时间状语从句。

注意时态的变化：在一般情况下，如果从句的谓语动词用一般过去时，主句的谓语动词用过去完成时；如果从句的谓语动词用一般现在时，主句的谓语动词用将来完成时。例如：

By the time you came back, I had finished this book.到你回来时，我已经写完这本书了。

By the time you come here tomorrow, I will have finished this work. 你明天来这儿的时候，我将已经完成此工作了。★由each time, every time等引导的时间状语从句。

例如：

Each time he came to Harbin, he would call on me. 他每次来哈尔滨，总是来看我。

Whenever that man says“To tell the truth”, I suspect that he's about to tell a lie.每当那个人说“说实在话”的时候，我猜想他就要说谎了。

You grow younger every time I see you. 每次遇到你，见你更年轻了。

★由as long as和so long as引导的时间状语从句。

这两个连词表示“只要“例如：

You can go where you like as long as you get back before dark. 你可以随意到哪里去，只要在天黑以前回来就行。

I will fight against these conditions as long as there is a breath in my body! 只要我一息尚存，我就要反对这种境况。

一、when“当……时”，引导时间状语从句时，从句用于表示主句动作发生的特定时间。如：

The days get longer when spring comes. = When spring comes, the days get longer.春天到来时，白天变得更长了。二、before“在……之前”，引导时间状语从句时，表示主句动作发生在从句动作之前。如：

Close the door before you leave the room.离开房间前关上门。

三、after“在……之后”，引导时间状语从句时，表示主句的动作发生在从句的动作之后。如：

I went to school after I finished my breakfast.吃完早饭后我就去上学了。

四、as soon as“一……就……”，引导时间状语从句时，表示主句动作紧接着从句动作发生。如：

I’ll call you as soon as I get home.我一到家就给你打电话。

五、until, till“直到”，引导时间状语从句。当主句谓语动词是延续性动词时，主句常用肯定形式；当主句谓语动

词是非延续性动词时，主句要用否定形式，即“not…until/till…”意为“直到……才……”。如：

I’ll wait here until/till the rain stops.我将在这里等着，直到雨停。

You can’t go home until/till you finish your work.直到你完成你的工作，你才能回家。

时态的呼应和从句的位置

状语从句的两手绝活——时态的呼应和从句的位置。请看：

第一点

时态呼应一般来讲，复合句都要遵循主、从句时态呼应规律，状语从句也不例外。即主句用现在时，从句也用现在时；主句用过去时，从句也用过去的某种时态。如：

Be careful when you cross the road.过马路时要小心。

You must see the doctor if you are ill.如果你生病了，你必须去看医生

主句是一般过去时，从句也要用一般过去时。如：

When he was seven years old, he could swim.当他七岁时就会游泳。

She turned off the light before she left the office.她离开办公室前就关了灯。

第二点

主从句的位置，大多数情况下，从句可以位于主句之前，也可以位于主句之后。不过从句在前时，主从句之间必须用逗号隔开。如：

Please tell me when he comes back. = When he comes back, please tell me.

这是一般现在，一般过去，现在进行，过去进行，现在完成，过去完成，现在完成进行，一般将来，过去将来时的时间状语:

1.Often,usually----------动词原型do,does,am,is, are

2.yesterday,last Sunday,in the past-------动词过去式did,was,were

3.now--------be+doing

4.while,at that time,-------was doing,were doing

5.since从句,for 2 days,------have done,have been

+过去的某个时间点----had done,had been

7.与现在完成相似-------have been+持续动词ing形式

8.一切表示将来的时间状语，in+一段时间-------将来要发生的一般性动作,

will,shall+原型

9.与一般将来时相似-----------would+原型

时间状语

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

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

一般将来时next…, tomorrow, in+时间,

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

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

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

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

从句语法

时间状语

在复合句中，担任状语成分的从句称为状语从句。时间状语从句说明主句动作发生或进行的时间。状语从句由连词引导，其位置通常可以放在句首或句末。放在句首是，常用逗号与主句分开；放在句末时，从句前面往往不加逗号。

引导的时间状语从句的主从复合句中，动作发生在先的用过去完成时，在后的用过去时。表示前面的叙述所没有提到过的信息。它总是对所描述的事件予以引人注目的强调，意为“这时；突然”；当位于句末的分句具有引种用法时，大致有以下三种情况：

A. when 分句前面的分句使用过去进行时。如：

(1) He was still smiling when the door opened and his wife came in. 他正笑着的时候，门突然

开了，他妻子走了进来。

(2) I was thinking of this when I heard my name called. 我正想着这件事时，突然听到有人叫我

的名字。

B. when 分句前面的分句使用was （were）about to，was （were）on the point 等。如：

(1) We were about to start when it began to rain. 我们刚要出发就开始下雨了。

(2) He was on the point of leaving when someone knocked at the door. 他刚要走就有人敲门。

C. when 分句之前的分句用过去完成时，其中sb had hardly / scarcely /barely …when 已成为固

定词组。如：

(1) We had hardly fallen asleep when the bell rang. 我们刚刚入睡，铃声就响了起来。

(2) He had scarcely arrived when he had to leave again. 他刚刚到达就又要离开了。

表示条件，相当于if ，引导条件状语从句。如：

How can I get a job when I can't even read or write？如果我连读和写都不会，我怎么能找到

工作呢？

4. 表示对比，主要有以下两种情况：

A. 相当于whereas，while，since，意为“既然；然而”。如：

(1) How can I help them to understand when they won't listen to me？既然他们不愿听我的，

我又怎么能帮助他们弄明白呢？

(2)They have only three copies when we need five. 他们只有三本，而我们却需要五本。

B. when 从句中使用虚拟语气，意为“本来……却……”。如：

(1) She paid when she could have entered free. 本来可以免费入场，而她却付了款。

(2) She stopped trying when she might have succeeded next time. 她本来下次有可能获得成

功，但她却不再尝试了。

(3) They were gossiping，when they should have been working. 他们本该工作，却在那里说别人的闲话。

原因状语

原因状语从句说明主句动作发生或进行的原因，一般由because,since,as等引导。because语气较强，用来说明人所不知的原因，回答why提出的问题。当原因是显而易见的或者已为人们所知，就用as 或since 。

用法

时间状语从句和原因状语从句的用法可以用八个字来概况：主将从现或主过从过

主将从现：主句用了将来时，从句就要用现在时。

主过从过：主句用了过去时，从句也要用过去时。

一词多义

对before从句的理解

before的本意为“在……之前”，根据具体语境还可理解为“还没来得及/还没有……就……，趁着还没……就……，不知不觉就……，……才……”等。如：

I had not sat long before he came back. 我没坐多久他就回来了。

He almost knocked me down before he saw me. 他几乎把我撞倒才看到我。

Before I could get in a word, he measured me. 我还来得及插话，他就给我量好了尺寸。

I’ll water the flowers before it gets dark. 我要趁着天还没黑把花浇好水。

Be a pupil before you become a teacher. 先做学生，后做先生。

Time passed quickly and three months went by before she knew it. 时间过得飞快，她不知不觉就在那里度过了三个月I will die before I will betray my country. 我宁可死也不会背叛我的国家。

对since从句的理解

1. since从句的谓语动词是终止性动词照字面意思理解。如：

I’ve been feeling down since I lost my job. 自从失去工作后,我的情绪一直处于低潮。

2. since从句谓语动词延续性动词，且为现在完成时时，仍然按字面意思理解。如：

She has never come to see me since I have lived in the city. 自从我住到城里，她就一直不来看我。

3. since从句谓语动词延续性动词，且为一般过去时时，按与字面意思相反的意思理解。如：

I have made great progress since I was ill. 我自病愈以来取得了很大的进步。

4.since前有ever，或从句谓语动词是be且后接表示人成长过程中的某个阶段或年龄的名词、形容词时，仍然按字面意思理解。如：

I have lived here ever since I was a child. 我从还是个孩子时就一直住在这儿。

对till/until从句的理解

1. 主句为肯定式，主句谓语动词必须为持续性动词，且该动词所表示的动作或状态一直延续到until/till从句所表示的时间为止，可译作“（直）到……”。如：

He waited until/till I returned. 他一直等到我回来。

2. 主句为否定式（包括含no, nobody, nothing, never, hardly, little等否定词的肯定句），若主句谓语动词是非持续性动词，则该动词所表示的动作在until/till从句表示的时间开始发生。一般先译从句“直到……”，后译主句，not 译成“才”，即“直到……才……”。如：

His mother didn’t leave until/till he was asleep. 直到他睡着了，他母亲才离开。

Nobody can leave until/till the meeting is over. 直到散会才能离开。

3. 主句为否定式，若主句谓语动词是持续性动词，则须根据上下文去理解until/till从句的含义，一般译为“直到……才……”或“没有到……”。如：

He didn’t wait until/till I returned. 他没有等到我回来。

She didn’t sleep until/till I returned. 她直到我回来才睡着。

其他从属连词

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）等。如：

When I went into the classroom, he was reading. 当我走进教室时，他正在看书。

He read a newspaper as he went along. 他边走边看报纸。

We must strike while the iron is hot. 我们必须趁热打铁。

I will tell you after they leave. 等他们走后我再告诉你。

I told him to come back whenever he wants to. 我告诉他什么时候想回来就回来。

I waited till/until she was back. 我一直等到她回来。

Once time is gone, you will never get it back. 时间一旦失去就再也得不到了

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。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。

强调句

强调句的句型是：

It is (was) 被强调部分+ that (who) + 句子其他部分

It was seven o'clock when we reached the station.（状语从句）

=It was "at" seven o'clock "that" we reached the station.(强调句，定语从句）

强调句和时间状语从句的区别是：时间状语从句可以去掉，不影响句子的完整性。而强调句that/who引导的句子是不能去掉的，否则句子就不完整了，单独的“It was at seven o'clock”是错误的。

时间状语从句和定语从句的区别其实跟上面说的是一样的，强调句型其实就是一种特殊的定语从句。本身最简单的表达法是：We reached the station at seven o'clock.然后为了强调"at seven o'clock",就变成了强调句It was "at seven o'clock" that we reached the staion，同时它也是定语从句：从句“that we reached the staion”修饰的是it=the time. 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。

【例】

Before I could get in a word, he had already given orders.

我还来不及插话，他已经吩咐下去了。

After the students were all in the lab, the professor brought out three bottles.

在学生们全进入实验室后，教授拿出三个瓶子来。

学习时间状语从句应注意以下几点：

（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】

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。

Please tell him about it when you see him back.

你看到他回来，就告诉他这件事。

（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】

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。

They worked until it was dark.

他们一直工作到天黑。

（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……”。

【例】

I recognized you the minute I saw you.

我一见到你，就认出了你。

By the time he was fourteen, he had built his own lab.

到他十四岁的时候，他已建起自己的实验室。

（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。

【例】

They were working in the fields when it began to rain.

他们在地里正干着活时，天突然下起雨来。

He was about to leave when the telephone rang.

他刚要走，突然电话铃响了。

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.

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。

时间地点原因状语从句

地点状语从句 常用连词：where 特殊连词：wherever (在……的任何地方), anywhere, everywhere 【点拨】地点状语从句与定语从句的区别：where引导定语从句时，从句前应有一个表示地点的名词作先行词；而状语从句前则无需先行词。 Go back where you came from.(where引导地点状语从句)你从哪儿来回哪儿去。Go back to the village where you came from. (where引导定语从句，修饰village)回到你来的那个村子里去。 时间状语从句 常用连词：when, as, while, as soon as, before, after, since , till, until, whenever (每当，一……就……) 特殊连词：the minute, the moment, the second, every time, the day, the instant, immediately, directly, no sooner ... than, hardly ... when, scarcely ... when 1．由when, while, as引导的时间状语从句when，while，as都有“当……时候”的意思。 1) when引导的从句的谓语动词既可以是延续性动词，又可以是瞬间性动词，并且when有时表示“就在那时”，相当于and at that time。 It was raining when we arrived. (指时间点)当我们到达的时候，天正在下雨。 When we were at school, we went to the library every day. (在一段时间内) 我们在学校上学的时候，每天都去图书馆。 We were about to leave when he came in.我们刚要离开，就在那时他进来了。 2) while引导的从句的谓语动词必须是延续性的，并强调主句和从句的动作同时发生(或者相对应)，此外，while有时还可以表示对比。 I like playing football while you like playing basketball. 我喜欢踢足球，而你喜欢打篮球。(对比) He fell asleep while/when reading.看书的时候，他睡着了。 Strike while the iron is hot. (用as或when不可以，这里的while意思是“趁……”) 趁热打铁。 3) as表示“一边……一边”，as引导的句子的动词是延续性的动词，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。 We always sing as we walk.我们总是边走边唱。(as表示“一边……一边”) Our headmaster laughed as she spoke.我们的校长边谈边笑。 2．由before“在……之前”和after“在……之后”引导的时间状语从句。 It will be four days before they come back．他们要过四天才能回来。 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。 After you think it over, please let me know what you decide. 你仔细考虑过以后，请告诉我你是怎样决定的。

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.

时间原因条件状语从句

掌门1对1教育高中英语 时间、原因、条件状语从句 一．when, while 和as 引导时间状语从句的区别用法（一）when 的用法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。（口头练习） When I got to the airport, the guests had left. Why do you want a new job when you have got such a good one already? (二)while 的用法 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。而另一件事的状态根据具体情况而定。（口头练习） 1. While my wife was reading the newspaper, I was watching TV. 2. While Jim was mending his bike, Lin T ao came to see him. 从时间的角度来看，while 表示的是一段时间，是一个过程。 趁热打铁。Strike while the iron is hot.（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。） (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。as 从句用的一般不用正在进行时，而只是一般过去时。可以翻译成“边……边……”。（口头练习） As my mother sang those old songs, tears ran down her cheeks. The students took notes as they listened. 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，常常翻译成“随着……”之意。 1. As the time went on，the weather got worse. 随着时间的推移，气候更加糟糕。 2. The atmosphere gets thinner and thinner as the height increases. 随着高度的增加，大气越来越稀薄。（少数情况下，如果强调动作正在发生，as 从句也可以用正在进行时。The sad mother sat on the roadside, shouting as she was crying. 伤心的妈妈坐在路边，边哭边叫喊。）

时间状语从句讲解与练习

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 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。 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。 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

时间状语从句和原因状语从句1

时间状语从句和原因状语从句 I. 选最佳答案 1. I learnt her hard-working and kind _______ I got to know her in the bookstore. A. first time B. for the first time C. the first time D. by the first time 2. It was not _______ he took off his dark glass I realize who he was. A. when; that B. until; when C. when; then D. until; that 3.It was 19 years _______ Mandela, the former president of South Africa, was set free from prison. A. before B. since C. until D. that 4. _______ had the bell rung _______ the students took their seats. A. Hardly; when B. No sooner; when C. Hardly; than D. No sooner; then 5. We walked along the beach for nearly three hours _______ we saw a boat on the sea. A. when B. before C. unless D. until 6. The two brothers quarreled and quarreled _______ they felt sleepy and went to bed. A. when B. before C. unless D. until 7. —What was the party like? —Wonderful. It’s years _______ I enjoyed myself so much. A. after B. before C. when D. since 8. It was quite a long time _______ I made it out what had happened. A. after B. before C. when D. since 9. _______, he went upstairs to sleep without supper. A. He was tired B. As he was tired C. Tired as was he D. As tired as he was 10. We sent the injured to the First-aid Centre_______ the accident happened. A. immediately B. hurriedly C. quickly D. shortly

when时间状语从句讲解教案教程文件

资料收集于网络，如有侵权请联系网站删除状语从句之时间状语从句 一．概念及分类名。复合句中从句可分为定语从句，和句子可以分为简单句，并列句复合句词性从句和状语从句。 用来修饰谓语动词，其他动词，定语，状语或整个句子的从句叫做状语从句。状语从句可分为：时间状语从句、地点状语从句、原因状语从句、条件状语从句、目的状语从句、让步状语从句、比较状语从句、方式状语从句、结果状语从句。 DaMing is a brave boy. DaMing is a brave boy and he always does something special. DaMing is a brave boy, who always does something special.

可编辑word 资料收集于网络，如有侵权请联系网站删除二，时间状语从句 When, while, as, before, after, since, 引导时间状语从句的连接词一般有等。，until/tillas soon as When 观察下面例句，总结其用法 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。 总结：从句表示动作可以______________也可以_________________,主句和从句的先后关系_______________________________________ When从句一般用于过去时比较多，主句无时态限制。 练习 Eg: 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。 可编辑word 资料收集于网络，如有侵权请联系网站删除When he had finished his

时间状语从句地引导词

时间状语从句的引导词 when, before, after, as, while, till/until, since，whenever 时间状语从句的用法 时间状语从句的引导词所表示的意思不尽相同，要注意把握不同的时间状语从句的引导词所表示的不同时间关系，以及它在具体句子中对应的对应时态、语态等问题。 1. when、as、while引导的时间状语从句分析： (1) when引导时间状语从句时表示“当……的时候”，when既可以指时间段也可指时间点，从句中既可用短暂性动词又可用延续性动词，且动作既可和主句的动作同时发生又可在主句的动作之前或之后发生。 注意体会如下例句： I’ll call you when I get there. 我一到那里就给你打电话。 When the wind blows, all the doors rattle. 只要风一吹，这门就吱嘎作响。

When I came home my wife was cooking dinner. 我回家时，妻子在做晚饭。 如果when引导的时间状语从句的主语与主句主语相同，而从句的谓语又是be动词时，那么从句中的主语和be 可以省略;当when引导的时间状语从句的主语与主句主语相同时，往往还可以用“when+分词”的形式替代该状语从句。例如： When (you are) in trouble, ask her for help. 当你遭遇麻烦的时候去向她求助。 When I came into the room (=When coming into the room), I found him lying there asleep. 当我进入房间的时候，我发现他躺在那儿睡着了。 (2) while引导时间状语从句时表示“当……的时候”，它强调主句的动作与从句的动作同时持续地进行，用于这一用法时while引导的时间状语从句和主句中的谓语动词必须是延续性动词，或者主句的动作发生在从句动作的进行过程中，主句中的谓语动词通常是非延续性动词，例如 Study while you study; play while you play.

时间状语从句和原因状语从句专项练习资料

时间状语从句和原因状语从句专项练习

时间状语从句和原因状语 从句专项练习 1. I learnt her hard-working and kind _______ I got to know her in the bookstore. A. first time B. for the first time C. the first time D. by the first time 2. It was not _______ he took off his dark glass I realized who he was.

A. when; that B. until; when C. when; then D. until; that 3. It was 19 years _______ Mandela, the former president of South Africa, was set free from prison. A. before B. since C. until D. that

4. _______ had the bell rung _______ the students took their seats. A. Hardly; when B. No sooner; when C. Hardly; than D. No sooner; then 5. We walked along the beach for nearly three hours _______ we saw a boat on the sea. A. when B. before C. unless D. until

状语的具体讲解时间状语

句子成分之——－状语的具体讲解（二）时间状语 具体用法：时间状语 导读：一、能做状语的成分 1.名词做状语 2.介词短语做状语（介绍了很多搭配时间的介词） 3.时间状语从句（分别介绍了不同引导词用法） （1）表示“当…时候” while,when,as （2）由before和after引导的时间状语从句 （3）until 和 till表示“直到” （4）since表示“自从”或者“自从这件事结束” （5）由as soon as, 表示“一…就…” （6）by the time each time, every time 二、常用时态中的标志性时间状语 一、能做状语的成分 1. 名词作状语 常做状语的名词有： today, yesterday, tomorrow, this 或that + morning/afternoon/evening/night/day/week/month/year…名词做主语放在句首句尾都可以： Yesterday, I got my new book published. =I got my new book published yesterday. 昨天我出版了我的新书。 2. 介词短语做时间状语 表示在某时间.常用介词at，on，in等。 用at 来表示在某一段时刻： at dawn/daybreak：在黎明 at six ：在6点钟 at midnight ：在午夜 用at 来表示在……岁时 at sixteen/at the age of sixteen ：16岁的时候

用on 来表示在星期几/某日 on Monday ：在星期一 on January fifth：在1月5日 on Christmas Day ：在圣诞节那一天也可用at Christmas on New Year's Day：在新年那天 用in来表示一天中的早中晚，月份，季节或年份 in the morning/afternoon/evening在早晨，下午，晚上 in January/ February在一月，二月 in Spring在春天 in 2014在2014年 表示期间常用介词during，for，over，within，throughout，from和to等。 during／within 用来表示在一段时间内，区别是 during 可以加名词和时间，within后只能加时间。 during the Middle Ages：在中世纪 during 1942 ：在1942年中 during the summer（of that year）：在（那一年的）夏季 during his childhood ：在他童年时期 during two years＝within two years for用来表示动作或状态持续了一段时间，（要与完成时搭配） for six years ：六年之久 for two months ：有两个月 for ever ：永远 表示其他时间概念的介词有before，after，since，until，till，between，up to等 3.时间状语从句 引导时间状语从句的连词，常见的有 before, after, when while, as, since, till, unil, as soon as 等 （1）表示“当…时候” while,when,as

2017-2018学年高中英语Module5NewspapersandMagazinesSectionⅢGrammar时间状语从句和原因状语从句教学案外

Module 5 Newspapers and MagazinesSection Ⅲ Grammar 时间状 语从句和原因状语从句 语法图解 探究发现 ①When he was orbiting in the capsule, he took photographs of planet earth. ②When Yang landed, Premier Wen Jiabao telephoned the Control Centre to offer his congratulations. ③While he was travelling in space, Yang spoke to two astronauts aboard the International Space Station. ④When you read a newspaper article in English, read the sub-headings before you start ... ⑤The manager didn’t attend the party because he was ill. ⑥“As you have asked me so nicely，” said Sharon, “I’d be delighted to sign your arm.” ⑦Since no one else saw the aliens, not many people believe Mr Bates. ⑧Now that I have made this first visit, I hope I can come many more times. [我的发现] (1)例句①②③④中的连词引导时间状语从句；例句⑤⑥⑦⑧中的连词引导原因状语从句。 (2)when引导时间状语从句时，从句中的谓语动词和主句谓语动词所表示的动作同时发生，如例句①④；也可以在其之前发生，如例句②。 (3)while引导的时间状语从句中的谓语动作必须是和主句谓语动作同时发生，如例句 ③；而before引导的时间状语从句中的谓语动作必须在主句谓语动作之前发生，如例句④。 (4)because引导原因状语从句时，可以置于主句之前，也可以置于主句之后，如例句 ⑤；而as, since, now that引导原因状语从句时经常置于主句之前，如例句⑥⑦⑧。

时间状语从句连接词讲解

1、时间状语从句 A．when, while, as, whenever; when, while, as 表示主句谓语作和从句的谓语动作同时发生或几乎同时发生。1．when ①When表示点时间时，从句中用短暂性动词；表示段时间时，用持续性动词。 When I got home, my family Were already hav ing dinner.我至U家的时候，全家已在 吃晚饭。 （When 表示点时间） When they Were still talking and laughing, the teacher came in. 当他们还在说笑的时候，老师进来了。（When 表示段时间） He WaVed hello Whe n he SaW her当他看见她的时候，就挥手打了个招呼。（Whe n 表示点时间） When you think you knoW nothing, you begin to knoW something. 当你认为自己一无所知的时候，就开始知道一些事情了。（When表示段时间） 【注意】当Whe n意思是正当.. 时候（and at that mome nt时，Whe n只能跟在 前一分句之后。 He WaS about to go to bed Whe n the doorbel rang他正要上床，忽然门铃响了。 They Were Watching the World Cup When suddenly the lights Went out. 他们正看着世界杯比赛，突然灯灭了。 They had just arrived home Whe n it bega n to rai n 他们刚到家，天就开始下雨了。 ②有时When表示虽然，尽管的含义，相当于although或SinCeO He walks Whe n he might take a taxi.尽管可以打的，但他还是步行。 HoW Can you hope for merCy yourSelf When you ShoW none 既然你不宽恕别人，你自己又怎能希望得至别人的宽恕呢？ 2．While ①while通常表示一段时间，从句中宜用持续性动词作谓语。 Strike while the iron is hot .趁热打铁。 She fell asleep while She WaS reading the n ewspape她在看报的时候睡着了。 ②while有时可以作并列连词，表示对比，可译成.... 而.... 。 I am fond of English While he likes math. 我喜欢英语而他却喜欢数学。 We slept while the CaPta in kept WatCh我们睡觉而上尉担任警戒。 ③while有时可引导让步状语从句，意思是虽然。 While they love the Children, they are striCt With them. 虽然他们都爱他们的孩子，但却对他们要求严格。 虽然during 与While 意思很相近，但是during 是介词，不能引导从句。 3．as ①as表示点时间时，从句中用短暂性动词；表示段时间时，用持续性动词。as 和When两者经常可以通用。 The thief WaS CaUght as Whe n he WaS SteaIi ng in the SuPermarke小偷在超市行窃时被逮住了。 I SaW Jim as Whe n he left the meeti ng rooπ?姆离开会议室时候我看到了他。 ②as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。 They talked as they WaIked 他们边走边聊。 He looked behi nd from time to time as he went.他一边走，一边不时地往后看。

时间状语从句(全面掌握)

状语从句 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；

三、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 six 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 also great at basketball. 当…时候;随着He smiled politely as Mary apologized for her drunken friends. 3) as 因为You can’t continue with the training as you have n’t recovered from the injury. 尽管Hot as/though the night air was, we slept deeply because we were so tired after the long journey. 正如,正像The air quality in the city, as is shown in the report, has improved in the last two months. 肯定句:主句的谓语动词必须是延续性动词。He worked until late into the night. 4)till, until

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