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1、8BUnit5Period3(Grammar-4c)鞍山市第二中学李晓光4aLookatthetableandwritesentenceswithbothwhileandwhen.WhileJohnwastakingphotos,Maryboughtadrink.JohnwastakingphotoswhenMaryboughtadrink.WhileJohnwasplayingthepiano,Maryleftthehouse./JohnwasplayingthepianowhenMaryleftthehouse.WhileJohnwascleaninghisroom,Maryturnedo
2、ntheradio./JohnwascleaninghisroomwhenMaryturnedontheradio.WhileJohnwasshopping,Marytookthecartothecarwash./JohnwasshoppingwhenMarytookthecartothecarwash.4bFillintheblankswithwas,were,whenorwhile.At7:00a.m.,Iworkup._______I______makingmybreakfast,mybrother_______listeningtotheradio.__________Iwaseati
3、ng,theradionewstalkedaboutacaraccidentnearourhome.MybrotherandIwentoutrightawaytohavealook._______wegottotheplaceoftheaccident,thecar______whilewaswaswhileWhenwasinbadshapefromhittingatree.Butluckily,thedriver_______fine.Theroads________icybecauseoftheheavysnowfromthenightbefore.waswerewhenandwhileB
4、othofthemmean”当……的时候”.Aretheythesame?No！！！when引导的时间状语从句可以表示一个时间点,也可以表示一个时间段。从句中可以用短暂性动词,也可以用延续性动词。Itwassnowingwhenwegottotheairport.我们到达机场时,天正下着雪。MykeydroppedonthegroundwhenIwaswalkinginthepark.我在公园散步时,钥匙掉在了地上。whenwhilewhile引导的时间状语从句常指一个时间段,从句中的动词常为延续性的。while有时还可表示主句的动作与从句的动作同时发生。Whilehewasreading,t
5、hephonerang.他正在看书时,电话铃响了。Somestudentswerereadingwhileotherswerewriting.一些学生在读书,另一些学生在写字。(2009四川泸州)Whatwereyoudoing_____ZhangFancamein?A.whenB.whileC.where【解析】三个选项分别意为“当……时”、“与……同时”、“哪里”，结合题意“当张凡进来时，你正在做什么？”可排除B、C二项，故选A。4cWhatwereyoudoingatthesetimeslastSunday?Fillinthechart.Thenaskyourpartner.YouYou
6、rpartner9:00a.m.11:30a.m.4:00p.m.9:00p.m.Ⅰ.用所给词的适当形式填空1.I__________(help)mymotherwithhouseworkatteno’clocklastSunday.2.Thegirl____________(have)apianolessonatthistimeyesterday.过去进行时的用法washelpingwashaving3.They___________(talk)aboutthefilmwhentheteachercamein.4.Whilehe__________(wait)forthebus,heread
7、anewspaper.5.Hesaidhewas______(leave)forShanghaisoon.weretalkingwaswaitingleaving（一）含义及构成过去进行时表示过去某一时刻或某一段时间正在进行或发生的动作，其结构为：was/were+v.–ing。过去进行时（二）用法1.表示过去某一时刻或某一段时间正在进行或发生的动作。与过去某一特定的时间状语连用，常见的有：at3
