when-while练习题教学教材

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. 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。

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。

对于，填写when还是while的问题，通常首先看主句和从句中的时态，再根据以上4个规律来判断填写那个单词。

When和While的区别通常when 后面接一般过去时while 后面接过去进行时①when是at or during the time that, 既指时间点，也可指一段时间，while是during the time that，只指一段时间，因此when引导的时间状语从句中的动词可以是终止性动词，也可以是延续性动词，而while从句中的动词必须是延续性动词。

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 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。

英语时间状语从句讲解与练习英语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这三个词的意思很简单，都有“当……时候”的意思。

但学生经常会问三个词的区别在哪儿，特别是在做选择题的时候。

别说是学生，就我个人而言，做这样的选择题要保证百分之百的正确也是不可能的。

现根据大量的实例和个人的思考，做一点小结，供大家参考。

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。

精品文档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 tryi ng 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 read ing a book. 她走进我房间时，我正在看书。

3. Were you writ ing whe n the teacher came in? 老师进来的时候，你在写信吗？4. Sorry, I was out whe n you called me. 对不起，你打电话来的时候我岀去了。

5. He was leav ing whe n some one kno cked at the door. 他正要走，这时有人敲门。

6.1 thought of it just whe n you ope ned your mouth. 就在你要说话的时候，我也想到了。

根据以上的例句，我们可以总结岀一点：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 'l 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（进行时）when从句（一般时）I was walk ing along the street whe n 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。

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 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 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（进行时）when 从句（一般时）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。

过去进行时中的when和while
教学目标：学生通过观察不同语境中when和while的使用，归纳总结过去进行时中when和while的用法，并能正确恰当得
在过去进行时态中使用。

教学步骤：
Step 1 Lend in
Present two sentences from the textbook with whe n and while.
Ask students if they can tell the differences between when and
while in past progressive tense.
Step 2 Presentation
1.Present sentences with when and fill in the blanks to conclude
the usage of when.
2.Present sentences with while and fill in the blanks to
summarize two usages of while.
Step 3 Practice
1. Make sentences with when and while.
2. Look at the table and write sentences with both
while and
when.
Step 4 Summary
Think what they’ve learned.
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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。