从一道高考题看when的运用

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关系代词when的用法

关系代词when的用法

关系代词when的用法
关系代词 when 通常用于引导时间状语从句,在句子中起连接作用,其用法如下:
1. 表示时间:when 引导的时间状语从句可以表示一个具体的时间点、一段时间或某个动作发生的时间。

- 当我到家时,我会给你打电话。

(表示一个具体的时间点)
- 当我在大学时,我学习了很多关于计算机科学的知识。

(表示一段时间)
- 当他听到这个消息时,他哭了起来。

(表示某个动作发生的时间)
2. 表示条件:有时 when 也可以引导条件状语从句,表示“在……的情况下”。

- 当天气好的时候,我们会去公园散步。

- 当你有困难时,你可以向我寻求帮助。

3. 表示对比:when 还可以用于表示对比,意为“然而,可是”。

- 他很聪明,当他努力学习时,他总是能取得好成绩。

- 她喜欢旅行,当她在家时,她总是感到无聊。

需要注意的是,when 引导的时间状语从句通常遵循“主将从现”的原则,即主句用一般将来时,从句用一般现在时。

总的来说,when 在句子中起到连接和引导的作用,可以帮助我们更准确地表达时间关系和条件。

通过高考题精讲when引导的状语从句

通过高考题精讲when引导的状语从句

通过高考题精讲when引导的状语从句(2013安徽)It’s much easier to make friends________ you have similar interests.A. unlessB. whenC. even thoughD. so that解析:本题选择B. 本题考查状语从句。

It’s much easier to make friends________ you have similar interests.A. unlessB. whenC. even thoughD. so that通过句意看:表时间。

句意:当你们有相似的兴趣的时候,就更容易交朋友。

(2004上海)Jasmine was holidaying with her family in a wildlife park _____ she was bitten on the leg by a lion.A. whenB. whileC. sinceD. once解析:本题选择A. 本题考查状语从句。

Jasmine was holiday ing with her family in a wildlife park _____ she was bitten on the leg by a lion.A. whenB. whileC. sinceD. once通过句意看:表时间。

常用固定句型:..be doing……when…..句意:jasmine正在和家人在野生公园度假,就在那时她的腿被狮子咬了一口。

(1988) _____got into the room, _____the telephone rang.(A)He hardly had, then (B) Hardly had he, when(C)He had not, than (D) Not had he, when解析:本题选择B. 本题考查状语从句和倒装结构。

从一道高考题看when引导的状语从句

从一道高考题看when引导的状语从句

从一道高考题看when引导的状语从句作者:张本芳请看下面一道高考题:We were swimming in the lake________ suddenly the storm started.A. whenB. whileC. untilD. before答案为A。

此题是考查when作连词引导从句的用法。

在此含义为"正......忽然......"。

when在英语中是个常见的词,其用法也比较灵活,现将其引导状语从句的含义及特点简单总结如下:一、有"当......的时候"的含义(=at the time that...),此时when后的从句是用来说明前面主句动作发生的背景。

例如:James pretended to be deaf when I spoke to him. 当我和詹姆斯讲话的时候,他假装耳聋。

二、有"正......忽然......"的含义,表示突然发生某事。

此时是when 前的主句说明when后面句子之中动词动作发生的背景。

例如:I was about to leave my office when the telephone rang. 我正要离开办公室时,忽然电话铃响了。

注意:在这种句型中一般不可把when放在句首。

三、有"无论什么时候......"的含义,与whenever的意思差不多,但语气较轻。

此时when后的从句说明主句动词动作发生的背景。

例如: When the wind blows, all the doors rattle. 只要风一吹,所有的门都吱吱嘎嘎作响。

四、有"本该(可)......而(却)......"的含义,此时when含有对比意义。

例如:They have only three copies when we need five. 我们本该需要五本,而他们却只有三本。

高考中when的用法

高考中when的用法

第三页,编辑于星期六:二点 五分。
二、when作为对等连词,意为:“正在此时;正在这 时”。常见句型如下: 1.be doing something when................ I was doing my homework when the telephone rang. 2.be about to do something when ............ He was about to leave here when the telephone rang. 3.be on the way to... when................. I was on my way to the lecture when someone asked me for directions.
• A. as B. until • C. while D. when
第十三页,编辑于星期六:二点 五分。
• 5. The film brought hours back to me ______I was taken good care of in that faraway village.
• A. until B. that • C. when D. where
第九页,编辑于星期六:二点 五分。
• 2.Don’t be afraid of asking for help ______ it is needed. A. unless B. since C. although D. when
第十页,编辑于星期六:二点 五分。
• 3.翻译:队长一来我们就出发。 (用when)
brought it to you ____you were in Mr.Black’s office yesterday. A. if B. when C. because D. before

从高考题看when的用法

从高考题看when的用法

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从一道高考题看when的运用

从一道高考题看when的运用

从一道高考题看when的运用when是中学英语中一个非常活跃的词,其意义丰富,用法灵活,不易被大家掌握。

高考试题经常涉及对when的考查。

请看2004年北京春季高考单项填空第26题:We were swimming in the lake ______ suddenly the storm started.A. whenB. whileC. untilD. before此题考查的就是when的用法,从语境可知,该空表示“正在这时”,答案选A。

下面结合高考试题对when的用法作一归纳,希望对同学们有所帮助。

一、when可以用作从属连词,引导时间状语从句,意为“当……的时候”,从句的谓语动词可以是延续性的(此时相当于while),也可以是非延续性的。

其引导的时间状语从句通常用现在时表示将来[真题再现]1. —He was nearly drowned once.—When was ____?—______ was in 1998 when he was in middle school.(2002北京春招)A. that; ItB. this; ThisC. this; ItD. that; This2. The reporter said that the UFO_______ east to west when he saw it.(NMET2000)A. was travelingB. traveledC. had been travelingD. was to travel3. —Can I join your club, Dad?—You can when you _____ a bit older.(NMET1994)A. getB. willC. are gettingD. will have got4. When the old man _______ to walk back to his house, the sun ______ itself behind the mountain.(2005湖北卷)A. started;had already hiddenB. Had started; had already hiddenC. Had started; was hidingD. Was starting; hid5. I _______ have been more than six years old when the accident happened.(2005北京卷)A.shouldn’t B.couldn’tC.Mustn’t D.Needn’tKey AAAAB二、when可以引导时间状语从句,意为“一……就……”,相当于as soon as例I’ll tell her ab out it when she comes back. 她一回来我就把这件事告诉她。

When多重含义与高考试题分析

When多重含义与高考试题分析

When的多重含义与高考试题分析从历届各地高考英语试题不难发现,when一词已成为高考命题的热点词汇之一,它可以引导高考必考的名词性从句、定语从句和状语从句。

2009年全国高考有六个地区的试卷考查了when的不同用法。

在最近五年的高考中(2005~2009),如福建卷分别在2005、2008和2009三年的试卷中考察到when引导状语从句;四川卷在2008和2009连续两年以及山东卷在2006和2008年的考卷中分别考查到when引导状语从句和定语从句。

遗憾的是,不少考生对于when 用法的认知不够全面,不能够详尽地掌握它的多重用法,因此有必要对该单词予以进一步的讨论。

本文将在结合理解高考英语试题的基础上,对when的主要用法进行简要的分析。

一、当(某事发生)时(definition: at or during the time that something happens)when the family came here from russia, they were penniless. 那家人从俄罗斯迁来这里时身无分文。

he flew tornado jets when he was in the airforce.他在空军服役时驾驶龙卷风战斗机。

【高考试题】例1:(nmet 2008辽宁32)i used to love that film ____ i was a child, but i don’t feel it that way any more.a.onceb.whenc.sinced.although例2:(nmet 2007北京25)——where’s that report?——i brought it to you ____ you were in mr. black’s office yesterday.a.ifb.whenc.becaused.before例3:(nmet 2005福建24)——did jack come back early last night?——yes. it was not yet eight o’clock ____ he arrived home.a.beforeb.whenc.thatd.until分析:以上三个例题的答案分别为bbb,均考查了when的用法。

高考辅导 when的用法与高考热点

高考辅导 when的用法与高考热点

高考辅导 when的用法与高考热点历届高考试题几乎毫无例外地都涉及到when的用法考查,其重要性和复杂性可见一斑。

本文通过近几年特别是对2005年高考试题关于when的考查情况分析,结合教学中学生在使用when时所出现的几个极易混淆的问题进行对比归类,并分析点评,以期从中找出某些学习when用法的规律来。

一、时间状语从句的when【例1】 He transplanted the little tree to the garden _____it was the best time for it.[2005高考上海卷]A whereB whenC that D.until【简析】应选答案B。

表示从句与主句谓语动作同一时间(段)发生。

意为“在这棵小树最适合移栽的季节,他把它移种到花园。

”【例2】When the old man_____ to walk backto his house,the sun____itself behind the moun- tain.[2005高考湖北卷I]A started;had already hiddenB.had started;had already hiddenC.had started;was hidingD was starting;hid【简析】应选答案A。

仔细推敲,易得出太阳隐藏在山峰之后发生在老人动身回家之前的行为。

【归纳点评】当when引导时间状语从句时,它可表示从句的动作与主句动作同时进行,也可表示两者一前一后发生。

when可译为“当……时”,“在……之前”,“在……之后”,其表示何意义主要通过主从句的不同时态来区别。

如:(1)Was it raining when you came to school yesterday?(同时)(2)When I had done the work,I took a rest.(从句动作先于主句动作)(3)The film had already began when I got to thecinema.(主句动作先于从句动作)二、并列分句中的when【例3】I was just talking to Margaret whenJackson_____.[2005高考湖南卷]A cut in B.cut downC.cut on D.cut up【简析】应选答案A。

【语法专题】when(几乎高考必考)的用法汇总,不会必然失分啦啦啦啦啦啦啦

【语法专题】when(几乎高考必考)的用法汇总,不会必然失分啦啦啦啦啦啦啦

【语法专题】第一讲when(几乎高考必考)的用法汇总,不会必然失分啦啦啦啦啦啦啦最近有好多同学留言问到:语法、词汇、解题技巧和学习方法方面的问题,接下来LAR老师要写这四个专题的系列帖,以此来回答大家的提问和留言,欢迎继续关注并留言提问,我一定竭尽全力帮助大家,但是lar老师每天发帖不能太多(有要求的),而且前几天我的宝宝生病住院啦,所以各位好朋友的问题,我需要慢慢回复和发帖回答,所以请大家不要心急,不过心急的同学可以在任何一个帖子里面留言给我直接找我要相关资料,我在看到后会尽快发电子版到你的邮箱!!!!一、作为副词,它有以下的用法:1. 作为疑问副词,引导特殊疑问句,意为“什么时候;何时”。

如:(1 )When will they come back?(2 )What time will they come back?回答when 引导的从句,不一定指出具体的时间点。

如回答句(1 )可用tomorrow,next month 等。

而回答what time 引导的问句,则必须说出具全的时间点,如at two o'clock,at five past ten 等。

2. 作连接副词,引导名词性从句或不定式,意为“什么时候”。

从句使用陈述句语序,时态根据实际情况而定。

如:(1 )I'd like to know when they will come. 我想知道他们什么时候来。

(when 引导宾语从句)(2 )Can you tell me when the bank opens?你能告诉我银行什么时候开门吗?(when 引导宾语从句)(3 )When she'll be back depends much on the weather. 她何时回来在很大程度上取决于天气。

(when 引导主语从句)(4 )Have you decided when to go sightseeing?你们已经决定什么时候去郊游了吗?(when 引导不定式结构)3. 作疑问代词,常和介词since,till,up to 等连用,意为“什么时候”。

从一道高考试题看when的主要用法

从一道高考试题看when的主要用法

从一道高考试题看when的主要用法作者:陈勤保来源:《广东教育·高中》2015年第12期先请看2015年高考英语广东卷的语法填空第20小题原题:One day, the cow was eating grass 20 it began to rain heavily.此题的参考答案为when。

此处的when用作并列连词时,意为“and just then”,其后的分句常含有“出乎预料,来得突然”之意,谓语动词也往往是短暂性的动词。

而前一个分句的谓语动词则常常用过去进行时或“was/were about to do”结构,when连接的分句谓语常用一般过去时,且常有suddenly, all at once等词语。

又如:(1)The children were running to move the bag of rice when they heard the sound of a motorbike. 孩子们正跑去搬那袋大米,突然听到了摩托车声。

(2)I was about to leave the school when it suddenly began to rain. 我正准备离开学校,天突然开始下雨。

此外,when作并列连词,还有以下几种用法:1. when在问句中用作并列连词时,通常设问表示“责备”或“提示”,故往往不作回答。

这时,when从句中常有suddenly等词语。

例如:(1)What were you doing when she suddenly left?她突然离开了,当时你在干什么?(2)Was he doing his homework when his father suddenly came in ?他父亲突然进来了,当时他在做作业吗?2. when用来表示过早发生某事(常可译为“还没(刚刚)…… 就”。

例如:(1)I had just eaten my supper when my friend called to invite me to dinner. 我刚刚吃完晚餐,突然朋友打电话来约我吃饭。

when用法归纳 讲义--高考英语复习备考

when用法归纳 讲义--高考英语复习备考

when用法归纳讲义when用法多种多样,下面就对其用法作简单小结。

一、作疑问副词,引导特殊疑问句,意思是“什么时候,何时”例如:When will he leave?他将什么时候离开?When did you see her?你是什么时候见到她的?二、作连接副词,引导名词性从句或动词不定式短语,意思是“什么时候”例如:I remember when this used to be a quiet village.我记得这曾经是一个幽静村庄的日子。

I'd like to know when they will come?我想知道他们什么时候来。

Have you decided when to go sightseeing?你们决定了什么时候去郊游吗?三、作疑问代词,常与介词since,till,up to等连用,意思是“......什么时候”例如:Till when is the library open?到什么时候图书馆才开放呢?They left on Monday,since when(=since Monday)we have heard nothing.他们是星期一离开的,自那以后我们就没有听到任何消息了。

四、作关系副词,引导限制性定语从句和非限制性定语从句例如:The day when(=on which)they were to leave finally arrived.他仍离开的日期终于来到了。

The film brought the hours back to me when I was taken good care of in that faraway village.这部电影使我回想起我在那座遥远的村庄备受关爱的时光。

Sunday is a holiday,when people do not go to work.星期天是假日,(那天)人们不上班。

I will see you in October,when I come back.我将在10月见你,那时我回来了。

通过高考题精讲when引导的宾语从句

通过高考题精讲when引导的宾语从句

通过高考题精讲when引导的宾语从句(1993)I remember this used to be a quiet village.A. whenB. howC. whereD. what解析:本题选择A. 本题考查宾语从句。

I remember this used to be a quiet village.及物动词红色整个从句作宾语简化为:remember sthI remember this used to be a quiet village.A. whenB. howC. whereD. what成分: 在从句中,作状语,排除D。

句意:根据上下文remember 和this used to be表时间。

I remember when this used to be a quiet village.我记得这个地方当时是个寂静的乡村。

A good friend of mine from I was born showed up at my home right before I left for Beijing.(2009安徽)A.how B.whom C.when D.which解析:选C。

A good friend of mine from when I was born showed up at my home right before I left for Beijing.成分:介词from后面,红色的句子是宾语从句。

在从句中作状语,表时间。

句意:我儿时的一个好朋友就在我动身去北京前到我家来了。

小练习:(2015重庆卷)We must find out ____ Karl is coming, so we can book a room for him.A. whenB. howC. whereD. why(2006全1) Please remind me ______ he said he was going. I may be in time to see him off.A.whereB.whenC.howD.what解析:We must find out ____ Karl is coming, so we can book a room for him.(宾语从句)A. whenB. howC. whereD. why 下文订房间,所以是时间when。

通过高考题精讲when引导的定语从句

通过高考题精讲when引导的定语从句

通过高考题精讲when引导的定语从句(2014湖南卷)I am looking forward to the day _______ my daughter can read this book and know my feelings for her.A. asB. whyC. whenD. where解析:本题选择C. 本题考查定语从句。

先行词是the day表时间,在从句中,作状语。

(2014浙江卷)I didn’t become a serious climber until the fifth grade, ______ I went up to rescue a kite that was stuck in the branches of a tree.A. whenB. whereC. whichD. why解析:本题选择A. 本题考查定语从句。

先行词是the fifth grade表时间,在从句中,作状语。

小练习:As the smallest child of his family, Alex is always longing for the time______he should be able to be independent. (陕西卷)A. whichB. whereC. whomD. when解析:本题选择A. 本题考查定语从句。

先行词是the time表时间,在从句中,作状语。

We will put off the picnic in the park until next week, ____ the weather may be better.A. thatB. whereC. whichD. when解析:本题选择A. 本题考查定语从句。

先行词是the time表时间,在从句中,作状语。

高考中when的用法(课堂PPT)

高考中when的用法(课堂PPT)
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• 2.Don’t be afraid of asking for help ______ it is needed. A. unless B. since C. although D. when
10
• 3.翻译:队长一来我们就出发。 (用when)
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• We will start when the team leader comes.

C. being completed

D. to be completed
8
实践操练
• 1.We were swimming in the lake ______ suddenly the storm started.
• A. when B. while • C. until D. before
you are ill.
4.当.........时候 例如:When I got to the
station, the train had left.
5.然而;可是”,相当于although 例如:
She stopped trying, when she might have
succeeded next time.
四、when可以用作连接副词,引导名 词性从句。when在从句中既起连接作 用同时也作状语
• I remember ______ this used to be a quiet village.
• A. when B. how 6
• C. where D. what
五、固定搭配 1.Somebody hate/love/enjoy/appreciate/like it when.............. 例如:I like it in the autumn when the wheather is clear and bright. 2.Hardly..........when.........(一.....就.....) 例如:Hardly had I got to school when the bell rang. 3.When it comes to......... (当谈及.......) 例如:When it comes to education, a lot of people think it is a lifelong study.

高考when的语法知识点

高考when的语法知识点

高考when的语法知识点高考是每个中国学生都要面临的一场重要考试,它不仅考察了学生多年来的学习成果,还对语言能力、逻辑思维和分析能力进行了全面的考察。

其中,语法知识点在高考英语考试中占据重要的位置。

在这篇文章中,我将探讨高考英语中关于when的语法知识点,并给出一些例子来帮助读者更好地理解和掌握。

一、when作为从属连词引导时间状语从句当when被用作从属连词时,它引导的从句表示一个时间状况。

在这种情况下,时间状语从句常常出现在主句之后,用来进一步解释或补充主句中的时间信息。

例如:1. I will call you when I finish my homework.(当我完成作业时,我会给你打电话。

)2. She always feels lonely when it rains.(下雨时,她总是感到孤独。

)在这些例子中,时间状语从句通过when来引导,进一步说明主句中的时间条件或状况。

二、when作为疑问词引导时间状语从句除了作为从属连词,when还可以作为疑问词引导时间状语从句,询问某个事件发生的时间。

这种结构通常用于特殊疑问句中。

例如:1. When will the concert start?(音乐会什么时候开始?)2. When did you arrive at the airport?(你什么时候到达机场的?)这里的when实际上起到了对时间进行询问的作用。

三、when作为相对副词引导定语从句当when作为相对副词时,它引导的定语从句修饰先行词指代的时间。

这种结构常用于描述或限定一个特定的时间点或时间段。

例如:1. That was the day when I graduated from university.(那是我从大学毕业的那一天。

)2. Do you remember the time when we went hiking together?(你还记得我们一起去徒步旅行的时候吗?)在这些例子中,定语从句进一步说明或限定了先行词所指代的时间。

也谈连词when的用法及对其在高考中考查

也谈连词when的用法及对其在高考中考查

也谈连词when的用法及对其在高考中考查也谈连词when的用法及对其在高考中考查我们知道,连词“when”最常见的用法是引导时间状语从句,基本意义为“当……的时候”。

但是,when的实际用法远不止于此。

笔者结合历年高考对when的考查作分类对比,并加以分析点评,以期从中摸索出一些规律,对即将参加高考的学生有所帮助。

一、时间状语从句中的when当引导时间状语从句时,它可表示从句的动作与主句的动作同时进行;也可表示两者一前一后发生。

可翻译为“当……时;在……之前;在……之后。

”其表示何意义主要通过主从句的不同时态来区别。

1. Was it raining when you came to school yesterday?(同时)2. When I had done the work. I took a rest.(从句动作先于主句动作)3. The film had already began when I got to the cinema.(主句动作先于从句动作)4. He transplanted the little tree to the garden®______it was the best time for it.A.whereB.whenC.thatD.until5. —Did Jack come back early last night?—Yes. It was not yet eig ht o’clock______he arrived home.A.beforeB.whenC.thatD.until一、 ifB.whenC.becauseD.Before6. Nancy enjoyed herself so much______she visited her friends in Sydney last year.A.thatB.whichC.whenD.where7. I used to love that film______I was a child, but I don’t feel it that way any more.A.onceB.whenC.sinceD.although8. There were some chairs left over______everyone had sat down.A.whenB.untilC.thatD.where9. Peter was so excited______he received an invitation from his friend to visit Chongqing.A.whereB.thatC.whyD.whenKey: 4. B 5. B 6. C 7. B 8. A 9. D二、引导状语从句翻译为“考虑到;既然;鉴于”(when=considering that…)1. How can I help them to understand when they won’t listen to__________________________________________________________2. Why do you walk when you have a car?__________________________________________________________3. Why do you want a new job______you’ve got such a good one yesterday?(NMET98)A.thatB.whereC.whichD.whenKey:1. 既然不听我的话,我怎能帮助他们了解呢?2. 既然你有了汽车,为什么还不行呢?3. DIt’s only the idle will be tired.三、引导让步状语从句翻译为“尽管,即使”(when=even though; in spite of the fact that…)1. He silenced his friends when they attempted to talk to him about it.__________________________________________________________2. Bob always goes a long way when he might take a short cut.__________________________________________________________3. You let the opportunity slip by when you could have seized it. __________________________________________________________4. They kept trying when they must have known it was hopeless.__________________________________________________________5. She stopped trying when she might have succeeded next time.__________________________________________________________6. He paid for a seat, when he______have entered free.(20XX年山A.couldB.wouldC.mustD.needKey:1. 尽管朋友们试图跟他谈这件事,但他却不让他们说。

When用法和高考试题例析

When用法和高考试题例析

When用法和高考试题例析研读近年来高考英语试卷,不难发现对when用法的考查频率很高。

但是多而不俗,耐人寻味。

归纳起来主要考一下四个方面:一when引导定语从句(限定性定语从句和非限定性定语从句)⒈when引导定语从句代替先行词在从句中做时间状语,此时定语从句的谓语动词多为不及物动词,先行词为时间(time/day)。

注意不可以认为先行词为时间时必须用when引导的定语从句。

高考链接①(2009江苏卷) Because of the financial crisis, days are gone _____ local 5-star hotels charged 6, 000 yuan for one night.A. ifB. whenC. whichD. since②(2004湖北卷)There was _____ time____ I hated to go to school.A. a, thatB. a, whenC. the, thatD. the, when解析:第①题:先行词days表时间,且从句中仅缺少状语。

为保持句子平衡,故将定语从句后置,可还原为:Gone are days when local 5-star hotels charged 6, 000 yuan for one night.第②题:a time 表示一段时间;when引导定语从句修饰限定time.【keys】B B.⒉when引导定语从句代替的先行词在从句中作时间状语,但此时定语从句之前的先行词不是time/day等明显的时间名词,而为隐性的如:occasion, ages, period等。

在这时when可以换为“介词+which”结构。

高考链接①(2008山东卷) Occasions are quite rare _____ I have the time to spend with my kids.A. whoB. whichC. whyD. when②(2008 上海卷)We went though a period _____ communications were very difficult in the rural areas.A. whichB. whoseC. in whichD. with which解析:第①题句意为:我和孩子们度过的时间相当少。

when句式的用法

when句式的用法

when句式的用法一、When句式的基本用法当我们在表达时间、条件、原因等概念时,经常会使用“when”这个词来引导句子。

本文将详细介绍和解释“When”句式的用法,并提供一些例句来加深理解。

1. 表达时间通常,我们会使用“When”句式来描述一个事件在过去发生的时间点或者将来可能发生的时间点。

例如:- When I was a child, I used to play with my friends in the park every day.- I will call you when I arrive at the hotel.2. 表达条件当我们想表达某种情况下会发生的结果时,也可以使用“When”句式。

这表示只有在特定的条件满足时,才会出现后面所说的结果。

例如:- When it rains, people usually carry umbrellas.- You can go out to play when you finish your homework.3. 表达原因在表达原因时,“When”可用于引导原因状语从句。

例如:- She got nervous when she saw the spider crawling on the wall.- John couldn't focus on his work when he had a headache.二、When句式与其他从属连词的区别1. 区别于“If”当我们要表示条件时,“If”和“When”是最常见的两个词。

然而,“If”用于表示一种假设情况,而“When”则表示一种必然或常发生的情况。

例如:- If it rains, we will stay at home.(如果下雨,我们会呆在家里)- When it rains, the grass becomes wet.(下雨时,草地变湿)2. 区别于“While”另一个易混淆的词是“While”,它也可以表示时间、条件或原因。

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从一道高考题看when的运用when是中学英语中一个非常活跃的词,其意义丰富,用法灵活,不易被大家掌握。

高考试题经常涉及对when的考查。

请看2004年北京春季高考单项填空第26题:We were swimming in the lake ______ suddenly the storm started.A. whenB. whileC. untilD. before此题考查的就是when的用法,从语境可知,该空表示“正在这时”,答案选A。

下面结合高考试题对when的用法作一归纳,希望对同学们有所帮助。

一、when可以用作从属连词,引导时间状语从句,意为“当……的时候”,从句的谓语动词可以是延续性的(此时相当于while),也可以是非延续性的。

其引导的时间状语从句通常用现在时表示将来[真题再现]1. —He was nearly drowned once.—When was ____?—______ was in 1998 when he was in middle school.(2002北京春招)A. that; ItB. this; ThisC. this; ItD. that; This2. The reporter said that the UFO_______ east to west when he saw it.(NMET2000)A. was travelingB. traveledC. had been travelingD. was to travel3. —Can I join your club, Dad?—You can when you _____ a bit older.(NMET1994)A. getB. willC. are gettingD. will have got4. When the old man _______ to walk back to his house, the sun ______ itself behind the mountain.(2005湖北卷)A. started;had already hiddenB. Had started; had already hiddenC. Had started; was hidingD. Was starting; hid5. I _______ have been more than six years old when the accident happened.(2005北京卷)A.shouldn’t B.couldn’tC.Mustn’t D.Needn’tKey AAAAB二、when可以引导时间状语从句,意为“一……就……”,相当于as soon as例I’ll tell her ab out it when she comes back. 她一回来我就把这件事告诉她。

We will stand up when the teacher comes into the classroom. 老师一走进教室我们就起立。

We will start when the team leader comes.队长一来我们就出发。

三、when可以作“如果;要是”解,引导条件状语从句,相当于if。

但when 作“如果;要是”解通常表示对某事是否会发生有把握,if 则表示对某事是否会发生没有把握例 How can you hope for mercy when you show none? 如果你不宽恕别人,你怎么能希望得到别人的宽恕呢?Let me know when you need money. 如果你需要钱就告诉我。

(含有I’m sure you’ll need money之意)Let me know if you need money.(含有perhaps you’ll need money之意)[真题再现]Don’t be afraid of asking for help ______ it is needed.(NMET2003)A. unlessB. sinceC. althoughD. whenkey D四、when可以作“既然,考虑到”解,引导原因状语从句,相当于since, now that, as或considering that例I can’t tell you anything when you won’t listen.既然你不想听,我就什么也不告诉你了。

How could you, when you knew that this might damage the apparatus? 既然你知道这样会损坏仪器,你怎么能这样做呢?[真题再现]1. He transplanted the little tree to the garden _______ it was the best time for it.(2005上海卷)A. where B. whenC. that D. until2.Why do you want a new job _______ you’ve got such a good one already? (NMET1998)A. thatB. whereC. whichD. whenKey BD五、when可以引导让步状语从句,意为“虽然;然而;可是”,相当于although例She stopped trying, when she might have succeeded next time. 她不再尝试了,虽然下次可能就会成功了。

Professor Li walks to work when he might ride. 李教授虽然有车可坐,但他还是步行去上班。

六、when可以用作等立连词,意为“就在那时/这时”(=at that/this time),“然后”(=and then),通常与“be about to do…”、“be doing…”或“be on the point of doing…”连用例We were about to start, when a strong wind came up and it began to rain. 我们正要出发,这时刮起了大风,天开始下起雨来。

We hadn’t been out for long when she felt sick in the stomach. 我们出去时间不长她就感到肚子疼。

I was doing my homework when the telephone rang. 我正在做作业,这时电话铃响了。

[真题再现]1. He was about to tell me the secret _______ someone patted him on the shoulder.(2002上海)A. asB. untilC. whileD. when2. The students _____ busily when Miss Brown went to get a book she ______ in the office. (MET1991)A. had written; leftB. were writing; has leftC. had written; had leftD. were writing; had left3. I was just talking to Margaret when Jackson _______.(2005湖南卷)A. cut in B. cut downC. cut out D. cut up4. I was on the highway when this car went past followed by a police car. They______at least 150 kilometers an hour.(2005重庆卷)A. should have been doingB. must have been doingC. could have doneD. would have doneKey DDAB七、when可以用作关系副词,引导定语从句。

这时when在定语从句中作时间状语[真题再现]1. The film brought hours back to me ______I was taken good care of in that faraway village.(NMET2001)A. untilB. thatC. whenD. where2. It was an exciting moment for these football fans this year, _____ for the first time in years their team won the World Cup.(2000北京春招)A. thatB. whileC. whichD. when3. I shall never forget those days ______I lived in the countryside with the farmers, ________had a great effect on my life.(1994上海)A. that; whichB. when; whichC. which; thatD. when; whokey CDB八、when可以用作连接副词,引导名词性从句。

when在从句中既起连接作用同时也作状语[真题再现]1. I hate ______ when people talk with their mouths full.(NMET1998)A. itB. thatC. theseD. them2. I remember ______ this used to be a quiet village.(NMET1993)A. whenB. howC. whereD. what3. What I asked him is _______the story happened.(NMET1990)A. when and whatB. which and whereC. what and whereD. when and where4.As soon as he comes back, I’ll tell him when _______ and see him.(2005北京卷)A. you will comeB. will you comeC. you comeD. do you comeKey AADA九、when可以用于固定句型“hardly…when…”,意为“一……就……”使用该句型时要注意:① hardly 后的谓语动词用过去完成时 ,when后谓语动词要用过去时。

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