when和while区别练习

when、while引导时间状语从句时的区别练习题用when或者while填空1.______Margowastalkingonthephone,hersisterwalkedin.2.______wevisitedtheschool,thechildrenwereplayinggames.3.______Sarahwasatthebarber's,Iwasgoingtoclass.4.______IsawCarlos,hewaswearingagreenshirt.5.______Allenwascleaninghisroom,thephonerang.6._____Jakewaswaitingatthedoor,anoldwomancalledtohim.7.______itbegantorain,theywereplayingchess.8.Shesawataxicoming______thewomanwaswaitingunderthestreetlight.9.TheboywaswalkingdownthestreetaUFOlanded.10._______thealienwasvisitingthemuseum,theboycalledtheTVstation.用所给动词适当形式填空1.WhileJake___________________(look)forcustomers,he____________(see)awoman.2.They__________________(play)footballontheplaygroundwhenit________(begin)torain.3.Astrangebox_______________(arrive)whilewe_________________________(talk).4.John_____________________________(sleep)whensomeone____________(steal)hiscar.5.Father__________still_____________(sleep)whenI_________(get)upyesterdaymorning.6.Grandma______________(cook)breakfastwhileI_____________(wash)myfacethismorning.7.Mother______________________(sweep)thefloorwhenI_____________(leave)home.8.I_________________(read)ahistorybookwhensomeone_____________(knock)atthedoor.9.MaryandAlicearebusy_____________(do)theirhomework.10.Thestudents____________(play)basketballontheplaygroundfrom3to4yesterdayafernoon.完成下面句子，一空一词1.飞机在伦敦起飞时正在下雨。It_____________________whentheplane___________________inLondon.2.你记得汶川大地震时你在做什么吗？Doyou______________whatyou_____________whenWenchuanEarthquake_____________.3.当铃声想起的时候，我们正在操场上玩得很开心。We_____________________________ontheplaygroundwhenthebell____________.4.当妈妈下班回家时，你在做什么？______________________________________Mum_____________________fromwork?5.当我在做作业时，有人敲门。________________________________________，someone________________thedoor.