when while 区别

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when和while用法区别专项练习

讲解三例句：

lsaredancingwhiletheboysaresinging.

ng’smotheriscookingwhenhegetshome.

/WhileKangkang’smotheriscooking,hegetshome.

一、用when或者while填空

1.______Margowastalkingonthephone,hersisterwalkedin.

2.______wevisitedtheschool,thechildrenwereplayinggames.

3.______Sarahwasatthebarber’s,Iwasgoingtoclass.

4.______IsawCarlos,hewaswearingagreenshirt.

5.______Allenwascleaninghisroom,thephonerang.

6.______Ritaboughthernewdog;itwaswearingalittlecoat.

rivingalong________suddenlyawomanappeared.

8._____Jakewaswaitingatthedoor,anoldwomancalledtohim.

eadingabook______suddenlythetelephonerang.

10.______itbegantorain,theywereplayingchess.

二、用所给动词适当形式填空

ake__________forcustomers,he_______awoman.

__________footballontheplaygroundwhenit_____

torain.

gebox________whilewe_________.

____________whensomeone__________hiscar.

stillwhenIupyesterdaymorning.

abreakfastwhileImyfacethismorning.

thefloorwhenIhome.

18.Iahistorybookwhensomeoneatthedoor.

dAlicearebusytheirhomework.

cheraskedusthewindowsclod.

weditwhereitwasgoing.

dentsbasketballontheplaygroundfrom3to4

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yesterdayafternoon.

三、完成下面句子,词数不限

1.飞机在伦敦起飞时正在下雨。

ItwhentheplaneinLondon.

2.你记得汶川大地震时你在做什么吗？

DoyourememberwhatyouwhenWenchuanEarthquake.

3.当铃声想起的时候,我们正在操场上玩得很开心。

Weontheplaygroundwhenthebell.

4.当妈妈下班回家时,你在做什么？

whenMumfromwork?

5.当我在做作业时,有人敲门。

Iwasdoingmyhomework,someonethedoor.

6.当外星人正在买纪念品的时候,那个女孩报了警。

thealienwasbuyingthesouvenirs,thegirlthepolice.

答案：

10.W

hen

king,aying,d,

leeping,stole15..was,king,

eping,left18,wasreading,knocked

19,aying

ning,tookoff

ing,tookplace

vingfun,rang

reyoudoing,camebackhome

/when,knockedat

,called