(完整版)when和while区别及专项练习-含答案

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whenwhile_as,since_的区别用法及练习题.docx

when,while,as,since的用法大总结以及练习题一.Since作为介词，后接某一确定的时间点，主句谓语动词是持续性动词，常与现在完成时态、现在完成进行时态或过去完成时态连用。

例如：亠1、He left the village in 1982 and I haven't seen him since then. 1982 年他离开这个村子, 从那以后我再没见过他。

2^ She's been working in a bank since leaving school.她中学毕业后就一直在一家银行工作。

3.He had spoken to her only once since the party.自从那次聚会以来，他只跟她说过一次话。

二.Since作为副词，表示从过去以来、以后或到现在的情形或状态，常与现在完成时态连用。

例如：1.He left home two weeks ago and we haven't heard from him since.他两周前离开了家，到现在我们一直没有他的消息。

2.He came to Zhenjiang 6 years ago and has lived here (ever) since.他6 年前来到镇江, 从此便住在这里。

三.since引导原因状语从句作为连词，since可引导原因状语从句，表示因为；既然；鉴于：例如：1.He didn't come since he was busy.他因为忙，所以没有来。

2.Since this method doesn't work,lei's try anoter.既然这种方法不行，我们就试用另一种吧。

四.Since在特殊句型中的应用句型I：“It is (has been) +时间+since+持续性动词的过去时”,表示“自从 ...... 以来到现在已有多久。

when和while的用法解析、练习题及答案(附总结表格)

when和while的用法解析、练习题及答案（附总结表格）一、讲解三例句:1. The girls are dancing while the boys are singing.2. Lucy’s mother is cooking when she gets home.3. When/While Lucy’s mother is cooking, she gets home.二、用when或者while填空1.______ Margo was talking on the phone, her sister walked in.2.______ we visited the school, the children were playing games.3.______ Sarah was at the barber’s, I was going to class.4.______ I saw Carlos, he was wearing a green shirt.5.______ Allen was cleaning his room, the phone rang.6.______ Rita bought her new dog; it was wearing a little coat.7. He was driving along ________ suddenly a woman appeared.8. _____ Jake was waiting at the door, an old woman called to him.9. ______ it began to rain, they were playing chess. 10. She saw a taxi coming ______ the woman was waiting under the streetlight.三、语法while和when都是表示同时，到底句子中是用when还是while主要看主句和从句中所使用的动词是短暂性动作(瞬时动词)还是持续性动作。

when和while的用法和区别

when和while的用法和区别When 和 While 的用法和区别在英语学习中，when 和 while 这两个词常常让学习者感到困惑。

它们都可以用来引导时间状语从句，但在具体的用法和所表达的含义上却存在着一些差异。

下面我们就来详细探讨一下 when 和 while 的用法和区别。

一、When 的用法1、表示“当时候”，引导的动作可以是短暂性的，也可以是持续性的。

例如：When I got home, my mother was cooking （我到家时，妈妈正在做饭。

）在这个句子中，“got home”是短暂性动作。

2、还可以表示“就在这时，突然”。

例如：I was walking along the street when suddenly someone called me （我正在街上走着，突然有人叫我。

）3、 When 可以用来询问具体的时间。

例如：When did you come back? （你什么时候回来的？）二、While 的用法1、表示“在期间，当时候”，引导的动作通常是持续性的。

比如：While I was reading, he was playing games （我在读书的时候，他在玩游戏。

）这里“was reading”和“was playing games”都是持续性动作。

2、强调主句动作和从句动作同时发生。

例如：While he was doing his homework, I was watching TV （他在做作业的时候，我在看电视。

）三、When 和 While 的区别1、动作的性质When 引导的从句动作既可以是短暂性的，也可以是持续性的；而while 引导的从句动作通常是持续性的。

例如：When the doorbell rang, I was having a bath （门铃响时，我正在洗澡。

）（“rang”是短暂性动作）While I was sleeping, the phone rang （我睡觉的时候，电话响了。

when, while 和as 的区别及练习

when, while和as的区别及练习使用when的情况:1.两个短暂性动作同时发生或接连发生时：I took off my shoes when I got home. 我一回到家，就把鞋子给脱掉了。

I picked up the phone when it rang. 当电话响的时候，我就接起了电话。

2.经常与年龄连用When I was 28 years old, I was working in New York.3.可以与延续性和短暂性动词连用Lily was sleeping when he called. 他电话来的时候，Lily正在睡觉。

He called when Lily was sleeping. Lily正在睡觉的时候，他打电话进来。

使用while的情况：1.当主句和从句都为进行时，指两个动作动作同时I was watching TV while my father was sleeping.我在看电视，我的爸爸在睡觉。

2.While 后面可以跟延续性动词，不能能短暂性动词。

He called while Lily was sleeping. Lily正在睡觉的时候，他打电话进来。

3.while 还可以表示然而，但是He is clever while he is very lazy. 他很聪明，但是很懒。

使用as的情况:1.As后面跟延续性动词He went back as his mother was cooking. 当他妈妈正在煮饭的时候，他回来了。

2.As 可以引导让步状语从句，但要倒装Child as he is, he is popular with a lot of people. 尽管他是小孩，但是他受很多人的欢迎与喜爱。

Try as he might, he still couldn’t make progress. 尽管他也尝试了，但是他仍然没有获得进步。

while与when区别练习

while与when区别练习when与while的区别一、选词填空1.What’s wrong?You look so (tire,tired,tiring).2.This coat is (nice,nicely)and seems very (expensive,expensively).3.It’s (bored,boring)to do the same thing every day.4.This car isn’t (safe,safely)to drive.5.Mum got (angry,angrily)because Tom came home very late.6.His idea sounds (good,well).二、根据汉语意思完成句子，没空一词。

1.这道菜尝起来很美味。

The dish .2.这辆小汽车很贵。

The car .3.这个漂亮的女孩会弹钢琴。

Can play the piano.4.这首歌很难唱好。

Thie song is very .5.在大街上踢足球很危险。

It is very football in the street.6.她有着圆圆的脸和又大又黑的眼睛。

She has a and .7.天黑以后单独出门是危险的。

It’s out alone afer dark.8.我们发现在这个村庄几乎不可能买到汽油。

We found it almost petrol in this village.9.这蛋糕很容易做。

This cake is .10.莉莉今天看起来很开心。

Lily today.三、选择题1.I have to do today.A.anything importantB.something importantC.important nothingD. important something2.Tony is going camping with boys.A.little two otherB.two little otherC.two other littleD.little other two3.-Tom looks .What’s wrong with him?-He lost his job yesterday.A.sadB.sadlyC.happyD.happily4.Julia is not so as Linda.Linda is the tallest girl in our class.A.tallerB.tallC.shorterD.short5.Mike is enough to move the heavy stone out of the road.A.strongB.strongerC.much strongerD.strongest6.The English passage is to understand because there arenew words.A.difficult;muchB.difficulty;fewC.difficult;manyD.difficulty;little7.The twins are together most of the time,so they never feel .A.friendlyB.tiredC.safeD.lonely一、把下面的直接引语改为间接引语1.“I never eat meat.”he explained.2.Tom asked,“When will the Teenagers’ Film Week start?”3.He said to me,“I have left my book in your room.”4.She added, “Have you got the ticket for Wall-E?”5.He asked, “Are you sure your mother will come?”6. “Will you be here tomorrow?”he asked me.7.He said, “I’m reviewing my lesson.”8.Jack said to her, “Where did you spend your holiday?”9.He said to me, “Don’t do that again.”10. “Light travels much faster than sound.”Everybody in our class knew.二、选择题1.He said, “I am living with my brother.”→He said that _______ was living with his brother.A.IB.youC.heD.they2. He said, “You are sure to get a warm welcome here.”→He said that we_______ sure to get a warm welcome there.A.amB.wasC.wereD.are3.The teacher asked, “Has she read enough this week?”→The teacher asked _______read enough ________ week.A.if she had,thatB.whether she has,thisC.if had she,thatD.whether has she,this4.He said, “Do I have anything to do with her.”→He asked _______ anything to do with ________ .。

英语人教版八年级下册while 和 when 的用法区别

when和while的用法和区别while和when都是表示同时，到底句子中是用when还是while主要看从句和主句中所使用的动词是短暂性动作（瞬时动词）还是持续性动作。

1、若主句表示的是一个短暂性的动作，而从句表示的是一个持续性动作时，两者都可用。

如：He fell asleep when [while] he was reading. 他看书时睡着了。

I met him when [while] I was taking a walk in the park. 我在公园散步时遇到了他。

2、若主、从句表示两个同时进行的持续性动作，且强调主句表示的动作延续到从句所指的整个时间，通常要用while。

如：Don’t talk while you’re eating. 吃饭时不要说话。

I kept silent while he was writing. 在他写的时候，我默不作声。

3、若从句是一个短暂性动作，而主句是一个持续性动作，可以when 但不用while。

如：When he came in, I was listening to the radio. 他进来时，我在听收音机。

It was raining hard when we arrived. 我们到达时正下着大雨。

4、若主、从句表示的是两个同时(或几乎同时)发生的短暂性动作，一般要用when。

如：I thought of it just when you opened your mouth. 就在你要说的时候，我也想到了。

至于什么是短暂性动作，什么是持续性动作，其实有个很简单的规律。

就是如果是进行时态，一般是持续性的。

如果是过去式，一般是短暂性动作。

一、用所给动词的适当形式填空1. Betty (watch) TV last night.2. The Shutes usually (have) supper at 6:30 .3. The boys (play football on the playground now.4. Lucy (leave) the classroom half an hour ago.5. It (snow) heavily when they left the station.6. she (fall) off the tree just now?7. It (rain) almost every day last month.8. ---where you (catch) the fish? ---I (catch) it in the river near the house.9. She (write) a letter to her friend last night. But I don't know whether she has finished it or not.二、选择最佳答案：1.She thought I was praising her child，_____，in fact，I was scolding him for his bad behaviors at school.A.whatB.whileC.so thatD.therefore2.I do every single bit of housework ____ my husband Bob just does the dishes now and then.(2004全国卷II35)A.whileB.sinceC.whenD.as3.______ it is expected that students come university with the ability to take a good set of notes，this is not always the case.A.WhenB.AsC.ForD.While4.We were swimming in the lake ___ suddenly the storm started.A.whenB.whileC.untilD.before。

(完整版)when,while,as讲解与练习.docx

时间状语从句讲解与练习when, while和as 引状从句的用法三个的意思很，都有“当⋯⋯候”的意思, 但又有区。

一、 when 的用法察下面的句子:1.When he was a child he was always trying out new ideas. 他小候就常常一些新的想。

2.When she came into my room, I was just reading a book. 她走我房，我正在看。

3.Were you writing when the teacher came in? 老来的候，你在写信？4.Sorry, I was out when you called me. 不起，你打来的候我出去了。

5.He was leaving when someone knocked at the door. 他正要走，有人敲。

6. I thought of it just when you opened your mouth.就在你要的候，我也想到了。

根据以上的例句，我可以出一点：when 从句中的 A 事件，相当于主句中 B 事件生的点。

也就是，when从句的重点不在作本身生的状，而只是把它作一个点，所以when从句多数情况下用的是一般去，而不用行, 而且, when从句的大多是短性。

种法也可以参照。

上， when 从句也可以有其它的，但几乎也不用行，因它也只是作一个参照点。

例如：When the manager comes here for a visit next week, I’ll talk with him about this.下周，理来参，我会和他此事。

When 的特殊用法：主句（行）when 从句（一般）I was walking along the street when a ball hit me on the head.我正沿着路着，就在一个球打在了上。

whenwhile的练习题

whenwhile的练习题when和while都是表示时间的连词，在句子中起到连接上下文、表达时间关系的作用。

在使用上，when常用于表示“当…的时候”，while 则常用于表示“在…期间”。

下面，我将为您提供一些when和while的练习题供您练习。

练习题一：用when或while填空1. ________ I was walking home, it started to rain heavily.2. ________ I was cooking dinner, the phone rang.3. He fell asleep ________ watching TV.4. ________ I was studying for the exam, my friends were having fun at the party.5. ________ I was reading a book, my sister was playing the guitar.练习题二：改写句子，使用when或while1. I saw her. She was crossing the street.改写：I saw her ________ she was crossing the street.2. They were watching a movie. The power went out.改写：________ they were watching a movie, the power went out.3. He was reading a novel. The doorbell rang.改写：He was reading a novel ________ the doorbell rang.4. She was doing her homework. The dog barked loudly.改写：________ she was doing her homework, the dog barked loudly.5. We were having dinner. The fire alarm went off.改写：________ we were having dinner, the fire alarm went off.练习题三：根据上下文，选择合适的连词（when或while）填入句子1. ________ Alice was shopping at the mall, she bumped into her old friend.2. ________ my parents were away on vacation, I took care of our house.3. ________ the teacher was explaining the lesson, some students were chatting.4. ________ I was waiting for the bus, I noticed a familiar face in the crowd.5. ________ my brother was playing video games, I was studying in the next room.答案：练习题一：用when或while填空1. While2. While3. While4. While5. While练习题二：改写句子，使用when或while1. when2. While3. when4. While5. While练习题三：根据上下文，选择合适的连词（when或while）填入句子1. When2. While3. While4. While5. While以上是关于when和while的练习题，希望对您有帮助。

when while练习题

when while练习题When While练习题When和While是两个常用的时间连词，它们在句子中的使用方式有所不同。

当我们理解它们的用法和区别时，就能更好地运用它们来表达自己的意思。

下面是一些练习题，帮助我们更好地掌握和应用这两个连词。

练习一：选择适当的连词填空1. _________ I was cooking dinner, the phone rang.2. _________ I was walking in the park, I saw a beautiful bird.3. _________ I was studying for the exam, my cat jumped on the table.4. _________ I was reading a book, my sister was watching TV.5. _________ I was waiting for the bus, it started to rain.练习二：根据给定的句子，使用When或While填空1. _________ I was walking home, I saw a shooting star.2. _________ I was driving to work, I got stuck in traffic.3. _________ I was shopping at the mall, I bumped into an old friend.4. _________ I was playing soccer, it started to rain heavily.5. _________ I was having dinner, the power went out.练习三：根据给定的情景，选择适当的连词填空1. _________ I was taking a shower, the doorbell rang.2. _________ I was waiting for my friend, he suddenly appeared.3. _________ I was watching a movie, my phone rang.4. _________ I was cooking in the kitchen, the smoke alarm went off.5. _________ I was reading a book, my dog barked loudly.练习四：根据给定的情景，使用When或While填空1. _________ I was sleeping, my alarm clock went off.2. _________ I was walking in the park, I saw a rainbow.3. _________ I was studying for the test, my phone rang.4. _________ I was talking on the phone, my cat knocked over a glass.5. _________ I was driving to work, I saw an accident.练习五：根据给定的情景，选择适当的连词填空1. _________ I was eating lunch, the doorbell rang.2. _________ I was waiting for the bus, it arrived.3. _________ I was watching a movie, the power went out.4. _________ I was playing basketball, it started to rain.5. _________ I was reading a book, my friend called me.答案：练习一：选择适当的连词填空1. While2. While3. When4. While5. When练习二：根据给定的句子，使用When或While填空1. While2. While3. When4. While5. When练习三：根据给定的情景，选择适当的连词填空1. While2. When3. While4. When5. While练习四：根据给定的情景，使用When或While填空1. When2. While3. When4. While5. When练习五：根据给定的情景，选择适当的连词填空1. When2. When3. While4. While5. When通过以上练习题，我们可以更好地理解和运用When和While这两个时间连词。

初中状语从句总结及练习(附答案)

状语从句练习易混引导词while, when, as的区别：1.when既可以指"时间点",与瞬间动词连用，也可以指"时间段"，与延续性动词连用（=while）。

如：When he came in, his mother was cooking.When (While) we were at school, we went to the library every day.While表示时间段,因此，while 从句的谓语动词要用延续性动词。

如：Please don't talk so loud while others are working.As与when用法相似，但着重强调主句动作与从句动作同时发生，有"随着……"或"一边……一边……"之意。

如：As you get older, you get more knowledge.随着年龄的增长，你获得的知识就越多。

2．Because,as,since 的区别：Because用于表示直接原因,回答why提出的问题，语气最强；As用于说明原因, 着重点在主句，常译成"由于"；since表示显然的或已知的理由或事实，常译成"既然"。

如：Water is very important because we can't live without it.He didn't come yesterday as his mother was ill.I'll do it for you since you are busy.3．such…that, so…that, so that 引导结果状语从句的区别：such是形容词，修饰名词; so 是副词，修饰形容词或副词。

其结构如下：1) such + a (n)+ 形容词+单数可数名词+that……2) such+形容词+复数可数名词+that ……3) such +形容词+不可数名词+that……。

【卓顶精文】初中状语从句总结及练习易混引导词while,when,as的区别.doc

初中状语从句总结及练习易混引导词while,when,as的区别1.when既可以指"时间点",与瞬间动词连用，也可以指"时间段"，与延续性动词连用（=while）。

如：Whenhecamein,hismotherwascooking.When(While)wewereatschool,wewenttothelibrarPeverPdaP.While表示时间段,因此，while从句的谓语动词要用延续性动词。

如：Pleasedon'ttalksoloudwhileothersareworking.As与when用法相似，但着重强调主句动作与从句动作同时发生，有"随着……"或"一边……一边……"之意。

如：AsPougetolder,Pougetmoreknowledge.随着年龄的增长，你获得的知识就越多。

2．Because,as,since的区别：Because用于表示直接原因,回答whP提出的问题，语气最强；As用于说明原因,着重点在主句，常译成"由于"；since表示显然的或已知的理由或事实，常译成"既然"。

如：WaterisverPimportantbecausewecan'tlivewithoutit.Hedidn'tcomePesterdaPashismotherwasill.I'lldoitforPousincePouarebusP.3．such…that,so…that,sothat引导结果状语从句的区别：such是形容词，修饰名词;so是副词，修饰形容词或副词。

其结构如下：1)such+a(n)+形容词+单数可数名词+that……2)such+形容词+复数可数名词+that……3)such+形容词+不可数名词+that……。

如：ThiswassuchagoodfilmthatIwenttoseeitseveraltimes.ItwassuchgoodbooksthatthePsellwell.ItwassuchbadweatherthatIhadtostaPathome.HespokesofastthatIcouldn'tfollowhim.HeissuchalovelPboPthatwealllikehim.=HeissolovelPaboPthatwealllikehim.注：在"形容词+可数名词复数/不可数名词"结构中，当名词前有manP,much,few,little表示数量的多少时，名词前用so。

第七whenwhileas区别及练习精编版

⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯最新料介绍⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯When while as 差别一、依据从句动作的连续性来划分1、“主短从长”型：即主句是一个短暂性动作，而从句是一个连续性动作，此时三者都可用。

如：Jim hurt his arm while ［ when， as］ he was playing tennis. 吉姆打网球时把手臂扭伤了。

2、“主长从长” 型：即主句和从句为两个同时进行的动作或存在的状态，且重申主句动作或状态连续到从句所指的整个时间，此时往常要用while 。

I always listen to the radio while I ’ m driving. 我老是一边开车一边听收音机。

He didn ’ t ask me in; he kept me standing at the door while he read the message. 他没有让我进去，他只顾看那张便条，让我站在门口等着。

可是，若主句和从句所表示的两个同时进行的动作含有“一边一边”之意时，则习惯上要用 as。

如：He swung his arms as he walked. 他走路时摇动着手臂。

3、“主长从短”型：即主句是一个连续性动作，而从句是一个短暂性动作，此时能够用as 或 when，但不可以用 while 。

如：It was raining hard when [as] we arrived.我们抵达时正下着大雨。

二、依据主句与从句动作能否同时发生来划分1、若主句与从句表示的是两个同时发生的短暂性动作，含有近似汉语“一就” 的意思，英语一般要用 as (也可用 when)。

如：The ice cracked as [when] I stepped onto it. 我一踩冰就裂了。

2、若主句与从句表示的是两个几乎同时发生的短暂性动作，含有近似汉语“刚要就”“正要却”的意思，英语一般要用as(也可用 when)，且此时往常连用副词just。

初中英语语法：时间状语从句解析和练习题(含答案)

2021年初中英语语法：时间状语从句解析和练习题(含答案)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、句中和句尾。

引导时间状语从句的词有when、while、as、before、after、since、until/till、as soon as、once、each time、next time、the moment、immediately、instantly等。

（一）when引导的时间状语从句1）when意为“当......时”，引导时间状语从句，表示主句的动作和从句的动作同时或先后发生例句：Faith is the bird that feels the light when the dawn is still dark. 信念是黎明前的黑夜里能感受到光明的鸟儿。

例句：When I was wandering in the street, I met her. 我在街上徘徊的时候遇到了她。

2）when引导的时间状语从句中的动词可以用延续性的=动词，也可以用终止性动词例句：He was listening to the music when I went in. 当我进去的时候，他正在听音乐。

例句：I will visit my parents when I have time. 我有空时会去看望我的父母。

（二）while引导的时间状语从句While引导的时间状语从句，常译为“与......同时，在......期间”，while引导的从句常用延续性动词或表示状态的动词。

例句：They rushed in while we were discussing problems. 当我们正在讨论问题时，他们冲了进来。

例句：Make hay while the sun is shining. （谚）趁热打铁。

（三）as引导的时间状语从句As引导的时间状语从句，可以表达“正当，一边一边，随着”等意思。

when和while的区别

you’re watching TV. 你不能一边看电视一边做家庭作业。
三〕、另外，when和while的区分还在于：while 引导的时间状语从句多用进展时态，而when引导的时间状语从句多用一般时态。
例如： 1、While they were talking , the bell rang. 正在他们谈话的时候，上课铃响了。 2、I was doing my homework when my
〔二〕、while只能表示某一段时间，不能表示某一点时间。在while引导的时间状语从句中，其谓语动词只能是连续性的，而且也只能与主句中的谓语动词同时发生或存在。
例如： 1、While Jim was mending his bike, Lin
Tao came to see him. 正值吉姆修自行车时，林涛来看他。 2、You can’t do your homework while
room. 她走进我房间时，我正在看书。 2、Were you writing when the teacher came in?
教师进来的时候，你在写信吗？ 3、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。
正在看电视。 I was watching TV when Peter came in. 当Peter进来时我正在看
电视。
2) as 和 when 可与非连续性动词连用，而 while 只能与连续性动词连用。
例如：He came in when/ as I was going to bed.我刚要上床睡觉，他进来了。
mother came back home yesterday evening. 昨天晚上妈妈回家的时候，我正在做家庭作

while和when的区别以及实例句型

while和when的区别以及实例句型你知道while和when的区别么。

你知道while和when的区别中有多少不为人知的秘密么。

下面由店铺为你分享while和when的区别的相关内容，希望对大家有所帮助。

when和while的有哪些区别when和while的区别11. when引导的时间状语从句中的谓语动词既可以是终止性动词，也可以是延续性动词，而while引导的时间从句中的谓语动词必须是延续性动词。

如：He fell asleep when/ while he was reading. (read是延续性动词)他看书时睡着了。

It was raining hard when we arrived. (arrive是终止性动词)我们到达时正下着大雨。

若主、从句表示两个同时进行的持续性动作，且强调主句表示的动作延续到从句所指的整个时间，通常要用 while。

如：Don’t talk while you’re eating. 吃饭时不要说话。

I looked after the baby while her mother was out.她妈妈外出时我照顾她。

Strike while the iron is hot.(is是延续性动词，表示一种持续的状态)趁热打铁。

2. 在“be about to do…when…”(正要做…，就在这时/突然…) 这个句型中，只能用when。

如：One day, I was about to do some shopping when hetelephoned me.一天,我正要去买东西,他打电话找我。

3. 在“be on the point of doing…when…” (正要做…，就在这时/突然…) 这个句型中，只能用when。

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

新人教八下unit5when while 区别讲解及相应练习

写出下列单词的过去式形式Grow run fall mean tell take fly think复习英语中表达正在如何表达比如你正在做什么？我正在等车1指在某个具体的时刻某事某人正在做某事或者？什么是具体的时刻昨晚昨晚九点去年去年这个时候三年前当暴风雨来的时候当我看到他的时候当我离开的时候在那个时候翻译当暴风雨来的时候我正在洗淋浴当我离开的时候他正在看电视总结当......时候用的时态是后面主句用的时态是When的意思2当前一段时间正在进行的动作整个早上昨天昨天一天昨天晚上昨天从七点到九点昨天从七点到九点我们在看电视他昨天一天都在玩电脑游戏While 时间段当妈妈在煮饭的时候我在写作业当我在等汽车的时候，他在看报纸当我在写作业的时候我听到一个声音总结while 引导的句子都用时态主句可以是也可以是特殊用法有些动词不能表正在即现在进行时相信同意知道听到用when 和while进行填空1、I was just reading a book ______ she came into my room.2、______ he was a child he was always trying out new ideas.3.You can’t do your homework _______ you’re watching TV.4、_______ they were talking , the bell rang.5、I was watching TV _______ Peter came in.1.I ______ cooked a meal when you _____ me.a. cooked, were ringingb. was cooking, rangc. was cooking, were ringingd. cooked, rang2 He said he _____ to draw a plane on the blackboard at that time.a. triesb. triedc. was tryingd. will try3.While she ______ TV, she ______ a sound outside the room.A. was watching, was hearingB.watched, was hearingC. watched, heardD..was watching, heard4.They _____ a football game from 7 to 9 last nighta. were watchingb. watchc. watchedd. are watching5. What book ____ you ______ when I ____ you at four yesterday afternoon?a. did, read, was seeingb. did, read,c. were, reading, sawd. were, reading, was seeing6.It was Friday evening. Mr and Mrs. Green _____ ready to fly to England.a. are gettingb. getc. were gettingd. Got7. Lei Feng _____ always _____ of others when he ______ in the army.a. is, thinking, wasb. was, thinking, isc. did, think, isd. was, thinking, was8. A girl ______ my pen fall off the table when she _____ me.a. saw, passedb. was seeing, passedc. was seeing, passedd. was seeing, was passing 9. We ____ for tom at ten last Sunday. He often kept us ______.a. were waiting, waitingb. were waiting, waitc. waited, waitingd. waited, wait10.He ____ his father on the farm the whole afternoon last Saturday.a. helpsb. would helpc. was helpingd. is helping11.While mother _______ some washing, I _____ a kite for Kate.a. did, madeb. was doing, madec. was doing, was makingd. did, was making12.“_______ you angry then?”“they ______ too much noise.”a. are, were makingb. were, were makingc. are, maded. were, made 13. He ____ some cooking at that time, so _____ me a.did, heard b. did, didn‟t hear c. was doing, heard d. was doing, didn‟t hear14.This time yesterday jack _____ his bike. He _____ TVa. repaired, didn‟t watchb. was repairing, watchedc. repaired, watchedd. was repairing, wasn‟t watching15. His parents wanted to know how he _____ on with his new classmates.a. was gettingb. getsc. is gettingd. will get16.Eddie was sleeping ________Millie was reading a magazine .A untilB while C. before D after17. Were you in the supermarket _____you heard a strange sound ?A when B. while C. then D. which作业写一篇短文介绍你的家人昨晚八点时正在做什么。

初中英语when_while练习题

初中英语when_while练习题一.改错1.She is fat but I am thin.2.It was raining while we arrived.3.She sang while he walked.4.I don't know them well，while they are my neighbors.二.选择最佳答案：1.She thought I was praising her child，_____，in fact，I was scolding him for his bad behaviors at school.A.whatB.whileC.so thatD.therefore2.I do every single bit of housework ____ my husband Bob just does the dishes now and then.(2004全国卷II35)A.whileB.sinceC.whenD.as3.______ it is expected that students come university with the ability to take a good set of notes，this is not always the case.A.WhenB.AsC.ForD.While4.We were swimming in the lake ___ suddenly the storm started.A.whenB.whileC.untilD.befor一、用所给动词的适当形式填空1.Betty (watch) TV last night.2.The Shutes usually (have) supper at 6:30 .3.The boys (play football on the playground now.4.Lucy (leave) the classroom half an hour ago.5.It (snow) heavily when they left the station.6.she (fall) off the tree just now?7.It (rain) almost every day last month.8.---where you (catch) the fish?---I (catch) it in the river near the house.9.She (write) a letter to her friend last night. But I don't know whether she has finished it or not.二、句型转换1.I got up late this morning.(改为否定句）I up late this morning.2.She had a bad cold yesterday.(改为一般疑问句）she a bad cold yesterday?3.He left home twenty minutes ago? (对划线部分提问）he home ?4.The boys were playing football at 5:00 yesterday afternoon.(划线提问）the boys at 5:00 yesterday morning?三、根据汉语意思完成句子1.昨天晚上迈克来的时候我正在写作业。

第七 when while as 区别及练习

When while as区别一、根据从句动作的持续性来区分1、“主短从长”型：即主句是一个短暂性动作，而从句是一个持续性动作，此时三者都可用。

如：Jim hurt his arm while［when， as］ he was playing tennis. 吉姆打网球时把手臂扭伤了。

2、“主长从长”型：即主句和从句为两个同时进行的动作或存在的状态，且强调主句动作或状态延续到从句所指的整个时间，此时通常要用while。

I always listen to the radio while I’m driving. 我总是一边开车一边听收音机。

He didn’t ask me in; he kept me standing at the door while he read the message. 他没有让我进去，他只顾看那张条子，让我站在门口等着。

但是，若主句和从句所表示的两个同时进行的动作含有“一边……一边”之意时，则习惯上要用as。

如：He swung his arms as he walked. 他走路时摆动着手臂。

3、“主长从短”型：即主句是一个持续性动作，而从句是一个短暂性动作，此时可以用as 或when，但不能用while。

如：It was raining hard when [as] we arrived. 我们到达时正下着大雨。

二、根据主句与从句动作是否同时发生来区分1、若主句与从句表示的是两个同时发生的短暂性动作，含有类似汉语“一……就”的意思，英语一般要用as (也可用when)。

如：The ice cracked as [when] I stepped onto it. 我一踩冰就裂了。

2、若主句与从句表示的是两个几乎同时发生的短暂性动作，含有类似汉语“刚要……就”“正要……却”的意思，英语一般要用as(也可用when)，且此时通常连用副词just。

如：I caught him just when [as] he was leaving the building. 他正要离开大楼的时候，我把他截住了。