when和while区别及专项练习---含答案
Whilewhen在高考试题中的考查
While&when在⾼考试题中的考查2019-08-01⼀、⼆者的区别1、when做并列连词⽤时，构成并列句，意为“就在这时，恰恰在这时”不可以⽤其他词代替。
多⽤于下列句型中：1）be+表⽰状态的介词短语+when…“在做某事，就在这时……”2）bedoingsth.+when…“正在做某事，就在这时……”3）beabouttodosth.When…“正要做某事，就在这时……”4）had（not）done…when…“刚……就……”2、when做从属连词时，连接时间状语从句。
这时要注意when与while和as引导的时间状语从句的区别：1）when，while，as都可以跟持续动词，表⽰⼀段时间，这⼀点俩跟着⽤法相似，但when也可以接⾮延续动词，⽽while可以。
2）when，while后⾯的主语如果与主句的主语⼀致，谓语含有be动词，经常采⽤倒装的形式但when后经常⽤过去分词或现在分词，⽽while后经常跟介词短语。
3）while也可以做并列连词，表⽰两者之间的⽐较，意思是“然⽽”when⽆此⽤法。
4）when除表⽰时间外，也可以暗含某种条件，相当于if，⽽while⽆此⽤法。
5）as引导时间状语从句时，多表⽰主从句的谓语的动作相伴随⽽发⽣，强调发⽣过程，因此经常翻译为“⼀边，⼀边”“随着”有时也可与瞬间动词连⽤，表⽰“正当……的时候”。
Eg.①Wewereatworkthatafternoonwhensuddenlyafirebrokeout.②Wewerehavingameetingwhensomeonebrokeinangrily.③Iwasabouttogooutwhensomeoneknockedatthedoor.④Wehadjustbeguntoworkwhenthemachinebrokendown.⑤Whenaskedwhyhehadn'tfinishedhishomework，theboykeptsilent.⑥Whenthereisnowaterorair，therewillbenolifeontheearth.⑦Mikeisveryweakwhilehisbrotherisverystrong.⑧Astheheightincreases，temperaturefalls；thechildrenwereplayingfootballhappilyonthegroundwhenitbegantorainheavily.while做并列连词时表转折，对⽐，意为“⽽”此时，⼀般位于句中。
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 ________ .。
(完整word版)when和while区别练习
(完整word版)when和while区别练习when、while 指引时间状语从句时的差别练习题用 when 或许 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._____ Jake was waiting at the door, an old woman called to him.7.______ it began to rain, they were playing chess.8.She saw a taxi coming ______ the woman was waiting under the streetlight.9.The boy was walking down the street a UFO landed.10. _______ the alien was visiting the museum,the boy called the TV station.用所给动词适合形式填空1.While Jake ___________________(look) for customers, he ____________(see) a woman.2.They __________________(play) football on the playground when it ________(begin) to rain.3.A strange box _______________(arrive) while we _________________________ (talk).4.John _____________________________(sleep) when someone ____________(steal) his car.5.Father __________still_____________ (sleep)when I _________(get)up yesterday morning.6.Grandma ______________(cook) breakfast while I_____________(wash) my face this morning.7.Mother______________________(sweep)the floor when I_____________ (leave)home.8.I _________________(read) a history book when someone_____________ (knock) at the door.9.Mary and Alice are busy_____________(do)their homework.10.The students ____________(play)basketball on the playground from 3 to 4 yesterday afernoon.达成下边句子，一空一词1.飞机在伦敦腾飞时正在下雨。
过去进行时中“when和while讲解与练习
过去进行时中“when和while讲解与练习过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作，常和表过去的时间状语连用，如：1. I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。
2. They were waiting for you yesterday.他们昨天一直在等你。
3. He was cooking in the kitchen at 12 o'clock yesterday.昨天12点，他正在厨房烧饭。
过去进行时的构成：肯定形式：主语+was/were+ V-ing否定形式：主语+was not (wasn't)/were not (weren't)+V-ing疑问形式：Was/Were+主语+V-ing。
基本用法：1. 过去进行时表示过去某一段时间或某一时刻正在进行的动作。
常与之连用的时间状语有，at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterda y (last night / Sunday…)，when sb. did sth.等时间状语从句，如：1）What were you doing at 7p.m. yesterday?昨天晚上七点你在干什么？2）I first met Mary three years ago. She was working at a radio shop at the time.我第一次遇到玛丽是在三年前，当时她在一家无线电商店工作。
3）I was cooking when she knocked at the door.她敲门时我正在做饭。
2.when后通常用表示暂短性动词，while后通常用表示持续性动词，而while所引导的状语从句中，谓语动词常用进行时态，如：When the car exploded I was walking past it. = While I was walking past the car it exploded.3.when用作并列连词时，主句常用进行时态，从句则用一般过去时，表示主句动作发生的过程中，另一个意想不到的动作发生了。
when,while,as练习题及答案
when,while,as练习题及答案when, while 和 as 引导时间状语从句的用法这三个词的意思很简单，都有“当??时候”的意思, 但又有区别。
一、when 的用法观察下面的句子: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 readinga 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 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。
根据以上的例句，我们可以总结出一点：when 从句中的A事件，相当于主句中B事件发生的时间点。
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从句多数情况下用的是一般过去时，而不用进行时, 而且, when 从句的动词大多是短暂性动词。
这种说法也可以参照。
实际上，when 从句也可以有其它的时态，但几乎也不用进行时，因为它也只是作为一个时间参照点。
例如：When the manager comes here for a visit next week, I’ll talk with him about this.下周，经理来这参观时，我会和他谈谈此事。
When的特殊用法：主句when 从句I was walking along the street when a ball hit me on the head.我正沿着路边着，就在这时一个球打在了头上。
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when和while用法区别专项练习
讲解三例句：
1. The girls are dancing while the boys are singing.
2. Kangkang’s mother is cooking when he gets home.
3. When/While Kangkang’s mother is cooking, he gets home.
一、用when或者while填空
Margo was talking on the phone, her sister walked in.
we visited the school, the children were playing games.
·
Sarah was at the barber’s, I was going to class.
I saw Carlos, he was wearing a green shirt.
Allen was cleaning his room, the phone rang.
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. He was reading a book ______suddenly the telephone rang.
10. ______ it began to rain, they were playing chess.
[
二、用所给动词适当形式填空
11. While Jake __________ (look) for customers, he _______ (see) a woman.
12. They __________
(play) football on the playground when it _____
(begin) to rain.
13. A strange box ________ (arrive) while we _________ (talk).
14. John ____________ (sleep) when someone __________ (steal) his car.
15. Father still (sleep) when I (get) up yesterday morning.
16. Grandma (cook) breakfast while I (wash) my face
this morning.
17. Mother (sweep) the floor when I (leave)
home.
~
18.
I (read) a history book when someone (knock
) at the door.
19. Mary and Alice are busy (do) their homework.
20.
The teacher asked us (keep) the windows closed.
21. I followed it (see) where it was going.
22. The students (play) basketball on the playground from 3 to 4
yesterday afternoon.
/
三、完成下面句子，词数不限
1.飞机在伦敦起飞时正在下雨。
It when the plane in London.
2.你记得汶川大地震时你在做什么吗
Do you remember what you when Wenchuan Earthquake .
3.当铃声想起的时候，我们正在操场上玩得很开心。
We on the playground when the bell .
4.当妈妈下班回家时，你在做什么
%
when Mum from work
5.当我在做作业时，有人敲门。
I was doing my homework, someone
the door.
6.当外星人正在买纪念品的时候，那个女孩报了警。
the alien was buying the souvenirs,
the girl the police.
答案：
…
looking ,saw playing,began , were talking sleeping, sto le15..was,sleeping got cooking, was washing sweeping,left 18,was reading,knocked
19,doing keep 21. to see playing
1. was raining, took off
2. were doing ,took place
3. were having fun, rang
4. what were you doing ,came back home
5. while /when, knocked at
6. while, called。