过去进行时when和while

过去进行时的讲与练时间：2021.02.02创作：欧阳术一、 含义：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培连用。过去进行时表示感情色彩与现在进行时相似,过去进行时也可表示满意、称赞、惊功、厌恶等感情色彩，也通常与always,forever等副词连用。e.g：Theywerealwaysquarrelling.他们老是眇架。二、 过去进行时的构成和用法:肯定形式：主培+was/were+doing否定形式：主语+wasnot(wasnrt)/werenot(weren't)+doing疑间形式:Was/Were+壬培+doing。常与之连用的时间状语有,atthattime/moment,(at)thistimeyesterday(lastnight/Simday/week...),at+点+yesterday(lastnight/Sunday...),when和while引导的时间状语从旬。三、 when/while引导的时间状培从句①由when/while引导的时间状培从句。常用句型：a.壬句(主语+was/were+doing...when+—般过去时的倒子)；表示主句动作发生的过程中，另一个意想不到的动作发生ToWeweretalkingwhentheteachercamein.=Whileweweretalking,theteachercamein.b•主句(主培+was/were+doing...while+主培+was/were+doing...);主句与从旬的动作都是延续性动词或同时发生的，两句部用过去进行时的时候,多用while引导★★★注意：when和while的区别：部意为"当……时候"，when引导的旬子谓语动词用短暂性动词或延续性动词都行;但while引导的句子谓语动词只能用延续牲动词,不能用短暂性动词。②when和while还可作并列连词。when表示"在那时"；while表示“而，却二表对照关系。Thechildrenwererunningtomovethebagofricewhentheyheardthe sound of a motor bike.孩子们正要胞过去搬开那袋米，这时他们听到了摩托车的声音 。Heislisteningtomusicwhilehisbrotherisplayingcomputer.他正在昕音乐，而他弟弟却在折电脂。廳短暂性动词是非延续性动词，即动作一开始便结束的动词,如come,go,begin,start,become,join,end,die,buy,arrive,欧阳术创编2021.02.02 欧阳美创编2021.02.02reach,borrow,lend,gettoknow等。持续性动词，如learn,study,work,play,wait等练习：用when或者while填空。(1)wewerewaitingforthebus,agirlranuptous.(2)1wastelephoningafriendBobcamein.(3)Jimjumpedonthebusitwasmovingaway.(4)Shewantedtostayinbedtheotherswereworkinginthefields.(5)motherwasputtingCathytobed,thedoorbellrang.(6)Hewaslisteningtomusichewasridinghisbike.(7)TheydidiVtmakeamodelshiplsawhim.(8)Heisstronghisbrotherisweak.四、一般过去时与过去进行时的用法比较：一般过去时表示“在过去某个时间发生的动作或存在的狀态”，而过去进行时则表示“在过去某个特定时间正在进行的动作如:Tomwrotealettertohisfriendlastnight.汤姆昨晚给他的朋友写了封信。(信耳完了)Tomwaswritingalettertohisfriendlastnight.汤姆昨晚一直在给他的朋友写信。(信不一定写完，只是强调了动作的延续性)。过去进打时练习一、用动词的适当形式填空。

l.it(rain)whenyouleftschool?Oneday,Edison(wait)foratraintoarrive,andsuddenlyalittleboyrantothetrack(珈道)toplay.3・She(make)herdressthewholeafternoon.4.Whenwe(arrive)atthevillage,it(get)darkandit(rain)hard・5.Laterhisparentsfoundthathe(sit)onsomeeggs・6・Whenheknockedatthedoor,myaunt(cook)7.Thereweresomestudents(sing)and(dance)happilyontheplaygroundatthattime.8.1(notwrite)aletterwhenthedoorbellrang・9・Wehadnoclassedatthattime・We(plant)trees・10.1likebasketballwhilemybrother(like)football.11.Thefarmers(work)inthefieldsyesterday.12.WesawLily(pick)applesinthefieldlastSunday.13.Whenspringcomes,thesnow(appear).二、选择题。) 1-I amealcooked,wereringing) 1-I amealcooked,wereringingC.wascooking,wereringingwhenyou me.wascooking,rangD.cooked,rang()2.Hesaidhe todrawaplaneontheblackboardatthattime.A.triesB.triedC.wastryingD.willtry()3.Whileshe TV,she asoundoutsidetheroom.A.waswatching,washearingB.watched,washearingwatched,heard D.waswatching,heard()4.They afootballgamefrom7to9lastnight.A.werewatchingB・watchC・watchedD.arewatching()5.Whatbook you whenI youatfouryesterdayafternoon?A.did,read,wasseeing B・did,read,sawC.were,reading,saw D.were,reading,wasseeing()6.ItwasFridayevening.MrandMrs.Green readytoflytoEngland.A・aregettingB.get C.weregettingD.got()7.LeiFengalwaysofotherswhenhe inthe army.A.is,thinking,was B.was,thinking,isC.did,think,is D・was,thinking,was()8.Agirl mypenfalloffthetablewhenshe me.A.saw,passedB.wasseeing,passedC・wasseeing,passedD.wasseeing,waspassing()9・We forTomattenlastSunday.Heoftenkeptus •A.werewaiting,waitingB.werewaiting,waitC.waited,waitingD・waited,wait()10.He hisfatheronthefarmthewholeafternoonlastSaturday.A.helpsB.wouldhelpC・washelpingD.ishelping()11・Whilemother somewashing,I akiteforKate.A.did,madeB.wasdoing,madeC.wasdoing,wasmakingD.did,wasmaking()12.64 youangrythen?”“They toomuchnoise：A.are,weremaking B.were,weremakingC.are,madeD.were,made()13.He somecookingatthattime,so meA.did,heardB.did.didn'thearC・wasdoing,heardD.wasdoing,didifthear()14.ThistimeyesterdayJack hisbike.He TVA.repaired,didn'twatch B.wasrepairing,watchedC.repaired,watched D.wasrepairing,wasn'twatching()15.Hisparentswantedtoknowhowhe onwithhisnewclassmates.A.wasgettingB.getsC.isgettingD.willget()16・Isawhim therabbitjustnow.A.tofollowB.playsC.playing()17.Tony downfromhisbikewhenherodetoschool.A.fallsB.fellC.felt()18.Whenhewasasmallchild,Ioftensawhim down.A.fallB.fellC.felt()19. Tonywasridinghisbike,hehadanaccident・A.WhenB.WhileC.AandB()20.Theteachercameintotheroom wewerewriting・A.afterB.asC.while()21.WhenJimmyenteredtheroom,everyone him.A.wassmilingtoB・weresmilingatC.wassmilingat()22.Whydidiftyougotothecinemawithusthatafternoon?I atthestationformyunclefromBeijing・A.waswaitingB.havewaitedC.waited三、句型转换。Shesawacat.Itwassittinginthetree.（改为同义句）Sheacatinthetree・2.1sawthemplayinggamesjustnow.（改为同义句）Isawthattheygamesjustnow.Themanwaswalkingdownthestreet.Itbegantosnow.（合并为复合句）Itbegantosnowthemanwaswalkingdownthestreet.ItstartedtorainwhileIwasgrowingsomeflowersinthegarden.（/r/