时间状语从句用法

时间状语从句用法
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)

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)

3.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。

4.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,主句多用一般过去式。

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。

5.由as soon as, immediately, directly, instantly, the moment, the instant, the minute, 等引导的时间状语从句。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。

6.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。

7.由each time, every time和whenever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。

8.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。

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:

,usually----------动词原型do,does,am,is, are

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

+doing

,at that time,-------was doing,were doing

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

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,从句中既可用延续性动词又可用非延续性动词,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。只要风一吹,这门就吱嘎作响。他不再试了,其实他可能下一次就成功。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。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. 该学习的时候就学习,该玩的时候就玩。当我在

学校的时候我遇见了她。

(3) as引导时间状语从句时表示“当……时,一边……一边……”,侧重表示两个动作同时发生(包括一个主语同时进行两个动作),或者一种动作随着另一种动作的变化而变化。例如: He jumps as he goes along. 他边走边跳。我跑回家时在冰上滑了一跤。正当他下公共汽车时, 我看

见了他。刮风的时候噪声增大。

在下列各句的空格中填入适当的连词:

1. _________ he comes tomorrow, I shall ask where he has been.

2. _________ he was speaking, everybody listened carefully.

3. I saw her just _________ 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. It was not ________ he took off his eyeglasses that I recognized him.

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. We played outside till sunset, _________ it began to rain.

[考题4]—I’m going to the post office.

—____ you’re there, can you get me some stamps? (1999)

A. As

B. While

C. Because

D. If

[答案] B

[解析]主句中“get me some stamps”的动作发生在时间状语从句“you’re there”的过程之中,因此应选while表示这一时间关系(属于while引导时间状语从句的两大基本用法之一)。注意: as有时也可用于表示主句的动作发生在从句动作的过程中,但这一用法不是as引导时间状语从句的主要用法,表示主句的动作发生在从句动作的进行过程中时用while更为常见,因此

B选项是最佳选项。

[考题5] ____ the days went on, the weather got worse. (1990)

A. With

B. Since

C. While

D. As

[答案] D

[解析]表示“the days went on”、“the weather got worse”两个相互伴随地进行变化的动作,应选as表示这一时间关系(while不适合用于这样的语境)。

[考题6] Tom ____ into the house when no one ____. (1992)

A. slipped; was looking

B. had slipped; looked

C. slipped; had looked

D. was slipping; looked

[答案] A

[解析]题干当中的when表示“当……的时候”, slip表示“偷偷地、悄悄地移动”,在本题中表示非延续性的动作——“溜进了教室”的结果,不适合用进行时态表示。第一个下划线处应填入slipped,以一般过去时客观描述在过去某一时间上发生的动作; look表示延续性的动作,可以持续进行,所以第二个下划线处应填入was looking,以过去进行时描述汤姆溜进教室

的大背景。

注意:如果主句的动作发生于表示“当……时”的时间状语从句中的动作的进行过程中,从句常用进行时。例如: The landlady suspected that someone must have broken into the house when/while/as she was watching TV show. 女房东怀疑在她看电视时曾有人闯入屋里。在

汤姆看书的时候,吉姆被逮捕了。

[考题7] I ____ along the street looking for a place to park when the accident

____. (2006安徽)

A. went; was occurring

B. went; occurred

C. was going; occurred

D. was going; had occurred

[答案] C

[解析]根据题干句子含义,事故发生于当我沿街行驶、寻找停车之处的时候;从句的动作发生在主句动作的过程中。主句的谓语动词go表示非延续性的动作,可以持续进行,应选用过去进行时的形式,从句的谓语动词为非延续性动词,应以一般过去时的形式表结果。

before引导时间状语从句时表示主句的动作发生在从句动作之前, after引导时间状语从句时表示主句的动作发生在从句动作之后。例如: See me before you leave. 在你离开之前来见我。在驾驶公共汽车之前,他们必须通过专门测验。在我抵达之后,我见到了他们。在他走后,我找

到了他的笔。

[考题8] He was told that it would be at least three more months ____ he could

recover and return to work. (2007江西)

A. when

B. before

C. since

D. that

[答案] B

[解析]表示“他康复并返回工作岗位之前至少还需要三个月”,下划线处应选用before。

[考题9] It was some time ____ we realized the truth. (2005山东)

A. when

B. until

C. since

D. before

[答案] D

[解析]题干意为:过了一段时间我们才意识到真相。下划线处应填入表示“在……之前”

的连词。

[考题10]— How long do you think it will be ____ China sends a manned spaceship

to the moon?

— Perhaps two or three years. (2006福建)

A. when

B. until

C. that

D. before

[答案] D

[解析]下划线处所在的宾语从句采用一般将来时,题干中第一句话问将来某一活动之前的

时间, before最为适合。

[考题11]—Why didn’t you tell him about the meeting?

— He rushed out of the room ____ I could say a word. (2006四川)

A. before

B. until

C. when

D. after

[答案] A

[解析]根据题干中第一句话的提示,第二句话中的“he rushed out of the room”发生于

“I could say a word”之前。

till和 until这两个词作连词和介词时的意义和用法相同,一般可以换用(放在句首时通常用until的形式, till在口语中更为常见)。till和 until引导时间状语从句时跟主句里肯定形式或否定形式的、表示延续性动作的谓语动词连用表示“到……为止”,跟主句里否定形式的、表示非延续性动作的谓语动词连用表示“直到……才(开始)”,例如: Walk till you come to a white house. 一直走到一座白房子为止。我们一直等到他回来后才讨论问题。

[考题12]It is difficult for us to learn a lesson in life ____ we’ve actually

had that lesson. (2007天津)

A. until

B. after

C. since

D. when

[答案] A

[解析]题干的句子可以直译为:“在我们一生中,学到某个教训是困难的,直到我们真

正经历了这个教训为止。”

[考题13] A good storyteller must be able to hold his listeners’ curiosity ____

he reaches the end of the story. (2003上海)

A. when

B. unless

C. after

D. until

[答案] D

[解析]讲故事的人应该始终抓住听众的好奇心,本题应选用表示“到……为止”(跟主句里肯定形式的表延续性动作的谓语动词连用)的until 表示这一时间关系。

[考题14]I don’t really work here; I ____ until the new secretary arrives.

(1994)

A. just help out

B. have just helped out

C. am just helping out

D. will just help out

[答案] C

[解析]“I don’t really work here”表明说话人只是临时前来帮忙,“until the new secretary arrives”表明说话人,工作到新秘书就任为止,本题应选用表示“到……为止”(跟主句里肯定形式的表延续性动作的谓语动词连用)的until表示这一时间关系。

[考题15] They ____ the train until it disappeared in the distance. (1998)

A. saw

B. watched

C. noticed

D. observed

[答案] B

[解析]题干中的主句为肯定句, until需要跟主句里肯定形式的表延续性动作的谓语动词

连用,因此本题应选表示延续性动作的watched(其他选项中的saw, noticed, observed所表示

的动作都不能延续,意味着结果)。

[考题16]—Was his father very strict with him when he was at school?

—Yes. He had never praised him ____ he became one of the top students in his grade.

(2003北京春)

[答案] C

[解析] until跟主句里否定形式的、表非延续性动作的谓语动词连用时,表示“直到……

才(开始)”,本题应选until与主句中的“never praised”对应,表示“他的父亲直到他成为年

级里的尖子生之一时才开始称赞他”。

[考题17]“You can’t have this football back ____ you promise not to kick it at my cat again,” the old man said firmly. (2006广东)

A. because

B. since

C. when

D. until

[答案] D

[解析]题干中的直接引语较为复杂,根据“promise”的提示,该直接引语应表示一种假设,意为:你将不能拿回这足球,直到你承诺不再把它踢向我的猫。

4. since引导的时间状语从句分析:

since引导的时间状语从句表示“自从……以来”,其用法主要有两种:

(1) 现在完成时的主句+since引导的一般过去时态的时间状语从句。例如:He hasn’t been home since he graduated. 他毕业后没回过家。他们从小学起就一直是好朋友。我成为研究生已经有2年了。It was three years since we had been there. 我们在那儿已呆了三年。

注意: since做介词时也表示“自从……以来”,其具体用法有两种情况:

(1) since+表示过去某个时间点的词汇(如具体的年、月、日期、钟点)。

例如: They have been friends since childhood. 他们从幼时起一直是好朋友。She’s been skiing since childhood. 她从幼时起就开始滑雪。I have been there many times since

the war. 自那次战争以来,我曾去该地多次。

(2) since+表示一段时间的词汇+ago。

例如: I have been here since five months ago. 五个月以来我一直在这里。

[考题18]— What was the party like?

—Wonderful. It’s years ____ I enjoyed myself so much. (1993)

A. after

B. before

C. when

D. since

[答案] D

[解析] since表示“自从……以来”。

[考题19] They ____ friends since they met in Shanghai. (1989)

A. have made

B. have become

C. have been

D. have turned

[答案] C

[解析]题干中的since表示“自从……以来”,主句中的谓语动词应该表示从他们在上海相遇至今的持续性的动作,因此下划线处应填入可以表示持续性状态的have been(其他选项中的made、 become、 turned所表示的动作都不能延续,意味着结果)。

Key:

1. When

2. While / When

3. as

4. when/as

5. when

6. when

7. when

8. while

9. while 10. whenever 11. before 12. After 13. since 14. till/until 15. until 16. before 17. as soon as 18. before 19. when

状语从句讲解及习题附答案

(一)状语从句概述 定义状语从句用作状语,是起副词作用的句子。 位置状语从句可以放在主句之前,也可以放在主句之后,时间、条件、原因和让步状语从句放在句首时需要用 逗号和主句隔开。 分类根据其作用可以分为时间、地点、原因、条件、目的、让步、方式和比较等状语从句。 作用它可以修饰谓语、非谓语动词、定语、状语和整个句子。 (二)状语从句详解 1. 时间状语从句 引导词用法示例 when 意为“当…的时候”。When 引导从句的谓语动词可以 是延续性动词,也可以是 瞬间动词。并且when有 时表示“就在那时”A liar is not believed when he speaks the truth.说谎者讲真话时也没有人相信。When he arrives, I’ll call you. When you laugh and smile, your body relaxes. while 意为“在…的时候,在…的 同时”。While引导从句的 谓语动词必须是延续性While I was standing at the window, I saw several boys running along the street.

的,发生时间较长,并强调主句和从句的动作同时发生(或者相对应)。While 有时还可以表示对比。While John was watching TV, his wife was cooking. as 意为“一边…一边…”。As 引导的动作是延续性的, 发生时间较短,一般用于 主句和从句动作同时发 生;as也可以强调一前一 后。The writer was angry as he was travelling on a train to London because someone had invaded his “space”. He smiled as he stood up. after 意为“在…之后”。表示主句 动作发生在从句动作之 后。主句与从句的动作时 间关系与before引导的从 句相反。With many hungry visitors waiting, don’t stay too long at your table after you have finished. If an early exit is necessary, you can leave after a scene is over. before 意为“在…之前”。引导的从 句不用否定形式的谓语, 并且当before引导的从句 位于主句之后,有时译成 “就,才”。当主句用将来时,You can’t watch TV before you finish your homework. Before it ended, the theatre was almost empty. My father had left for Canada

状语从句用法讲解和练习汇编

第章状语从句 学习指导 状语从句在句子中作状语,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。现分别列举如下: 状语从句分九类: 在这一章节的学习中,要求同学们掌握各类状语从句基本概念,并能够灵活应用 第一节时间状语从句 1. 时间状语从句用一般现在时表示将来。连接时间状语从句的连接词有: 2. when,while,as均可表示当.... 的时候” when强调特定时间”表示主句谓语动词的动作与从句谓语动词的动作是同时发生的, 或从句的动作发生在主句的动作之前;while表示的时间是一段,而不是一点,as多用在口 语中,强调同一时间”或一前一后”有时还有随着”的含义。 I'll go on with the work when / come back tomorrow .我明天回来后会继续做我的工作。 When spring came, he felt like a trip.春天来了,他想去旅游。 As spring warms the good earth,all flowers begin to bloom . (as 有随着”的含义) as, when, while 都表示主、从句的动作或状态同时发生,但三者也有区别。as和when引导的从句既可表示一点时间,也可表示一段时间,从句中的谓语动词既可以是持续性动词,也可以为短暂性动词,经常可以互换使用;while引导的从句通常表示一段时间,从句中宜 用持续性动词作谓语。当从句中的谓语动词为持续性动词时,这三者可以通用(前面例句中 已有体现),再如: Mother was worried because little Alice was ill, especially as / when / while father was away in France. 妈妈担心,因为小艾丽思病了,特别是当父亲远在法国的时候。 如果从句和主句要表示一个人的两个动作交替进行或同时完成时,则多用as,可译为“一

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。

高中英语状语从句用法详解

状语从句用法详解 内容提要: 一、时间状语从句 二、地点状语从句 三、方式状语从句 四、程度状语从句 五、原因状语从句 六、结果状语从句 七、目的状语从句 八、条件状语从句 九、让步状语从句 十、比较状语从句 一、时间状语从句: 1、时间状语从句通常用下列从属连词来引导:after, before, as, once, till, until, (ever) since, when, whenever, while, now (that), as long as, as soon as。如: Now (that)you’ve gr own up, you must stop this childish behaviour. Whenever we met with difficulties, they came to help us. Come and see us whenever you have time. People do not know the value of health till they lose it. 2、有些词,如immediately, directly, instantly 等,当用于as soon as 意义时,也可以引导时间状语从句,如:

I got in touch with him immediately I received his letter. My sister came directly she got my message. The machine will start instantly you press the button. I’ll t elephone you directly I hear the news. Will you look for it immediately you get there? 3.某些表示时间的名词词组,如the (very) moment ( = as soon as ), the minute ( = as soon as ), the instant ( = as soon as ), the day, the year, the morning, every time, each time, next time, the first time 等,也可以引导时间状语从句,如: I’ll tell you about it the moment you come. I started the instant I heard the report. The instant she saw him she knew he was her brother. Every time I catch a cold, I have pain in my back. I’m going to see him next time he comes to Shenzhen. He left Europe the year World WarⅡbroke out. He had impressed me that way the first time I met him. I started the very moment I got your letter. I’ll tell him the minute (that) he gets here. 4.有些关联从属连词,如no sooner …than / hardly …when / scarcely …when / barely …when 等,也能引导时间状语从句。 △如果把no sooner, hardly, scarcely, barely 置于句首,它所连带的这部分就要倒装,如:

语法讲解 时间状语从句的用法解析及练习

语法讲解时间状语从句的用法解析及练习 状语从句在复合句中作状语,其位置较灵活,可以在主句之前、之后或中间(放在句首时状语从句后面常用逗号,放在句末时状语从句前面往往不用逗号)。根据状语从句的含义,状语从句主要分为时间状语从句、地点状语从句、原因状语从句、目的状语从句、方式状语从句、结果状语从句、条件状语从句、让步状语从句等八种。掌握以上各种状语从句的关键在于把握其相应的引导词。以下是对时间状语从句的基本用法进行小结,希望可以帮助到同学们有一更深的理解。 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,从句中既可用延续性动词又可用非延续性动词,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。// He stopped trying, when he might have succeeded next time. 他不再试了,其实他可能下一次就成功。// 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. 该学习的时候就学习,该玩的时候就玩。// I met her while I was at school. 当我在学校的时候我遇见了她。 (3) as引导时间状语从句时表示“当……时,一边……一边……”,侧重表示两个动作同时发生(包括一个主语同时进行两个动作),或者一种动作随着另一种动作的变化而变化。例如:He jumps as he goes along. 他边走边跳。// I slipped on the ice as I ran home. 我跑回家时在冰上滑了一跤。// I saw him as he was getting off the bus. 正当他下公共汽车时, 我看见了他。// As the wind rose the noise increased. 刮风的时候噪声增大。

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.

英语语法之时间状语从句

时间状语从句常由以下连接词引导:when(当……时),as(一边……一边;当…时),while(在……期间),after(在……之后),before(在……之前),as soon as(一……就),since(自从),till(until)(直到……,直到……才),whenever(任何时候),the moment(一……就),no sooner than(一……就),hardly…when… (一……就)等。由以上连接词(或词组)连接的主从复合句中,主句和从句的动作,有的是同时发生,有的是先后发生。因此,要特别注意根据连接词所代表的时间不同,主句和从句的谓语要使用相应的时态。这是掌握时间状语从句的关键。 1. when 和whenever 引导的从句:从句的动作和主句的动作可以同时发生,也可以先于主句的动作发生。例如: When we reached home, it was already dark. 我们到家的时候天已经黑了。 When my cousin came yesterday, I was playing volleyball. 昨天我表哥来时,我正在打排球。 When it rains, I go to school by bus.下雨的时候,我坐车去学校。 I shall tell her the good news when she comes. 她来时,我将告诉她这个好消息。(主从句都表示将来发生的动作,但要注意从句中要用一般现在时,表示将来。) Come to see us whenever you can.你什么时候有空,就过来看看我们。 2. while 和as 引导的从句:while表示“当…过程中”,强调某一段时间主句和从句的动作在同时发生。as表示“当…时”或 “一边…一边”,主句和从句的动作同时发生。例如: Work while you work; play while you play. 该工作的时候就工作,该玩的时候就玩。 While he is reading, he always makes notes. 他经常一面看书,一面做笔记。 She sings as she goes along.她边走边唱。 You will grow wiser as you grow older. 随着年龄的增长,你会更加聪明起来。 3. before 和after 引导的从句:前者一般表示主句的动作发生在从句动作之前。后者表示主句的动作发生在从句动作之后。 例如: I didn’t know any English before I came here. 我来这儿之前,一点英语都不懂。 I had written my report before my mother came back.

让步状语从句的讲解与用法(精选课件)

让步状语从句的讲解与用法让步状语从句是状语从句中的一种,其本身也是状语从句.一般翻译为“尽管……”或“即使……",就是我们日常生活中用的“退一步说……"的感觉。?使用的连词?引导让步状语从句的连词主要有以下这些:though, although,while, as; even if, even though; whether...or。.。;no matter+疑 问词,疑问词-ever,regardless of+名词/名词 短语/名词从句,despite,in spite of.切记although不可与but连用 用法 (1)though, although表示“虽然,纵然"之意。这两个连词意思大致相同,在一般情况下可以互换使用.在口语中,though较常使用,although比though正式,二者都可与yet,still或never,the less连用,但不能与but连用。 例如:Although/Though he was exhausted, (still) he kept on working。虽然他已经精疲力竭了,但仍然继续工作. (2)as, though表示“虽然……但是",“纵使……"之意。 as引导的让步状语从句必须以部分倒装的形式出现,被倒装的部分可以是表语、状语或动

词原形,though也可用于这样的结构中,但alth ough不可以这样用。?例如:Object asyou may, I’ll go。(=Though/Although you may object, I’ll go。)纵使你反对,我也要去。(3)even if,eventhough表示“即使……”,“纵使……”之意,含有一种假设。这 两个复合连词的意思基本相同。它们常互换使用,但意 义有细微差别。even if引导的让步从句含有强烈的假 定性,可用来表示与事实相反的假设,但不能用来描述 已经发生的事实.而even though引导让步状语从句 时,是以从句的内容为先决条件的,即说话人肯定了从 句的事实,表示已经发生了的事。?例如: We’ll make a tripeven if/though thewea ther is bad. 即使天气不好,我们也要作一次旅行. ?(4)whether...or。。。表示“不论是否……”, “不管是……还是……"之意。由这一个复合连词 引导的让步状语从句旨在说明正反两方面的可能性都不 会影响主句的意向或结果。 例如: You'll have toattend thecer emony whether you're freeor busy.不 管你忙不忙,都要参加这个典礼。?Whether you believe it or not, it's true.无论你是否相

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时间状语从句讲解与练习

时间状语从句讲解与练习

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时间状语从句用法

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(完整版)where引导的地点状语从句用法总结归纳

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