Reviewthesentences(was/were+动词现在分词)thatwehavestudiedinUnit1andUnit2.Talkaboutthepictures.1.Alicewassittingwithhersisterbytheriver.2.Itwassittinginatreeandsmilingateveryone.3.Theywerehavingateapartyinthegarden.4.Wherewasitgoing?过去进行时与一般过去时的区别:一般过去时与过去进行时时间都是发生在过去。一般过去时强调动作的发生或状态的存在;而过去进行时强调动作正在进行的延续性。其结构:was/were+动词现在分词试比较:Igotupatfivethedaybeforeyesterday.前天我是五点起床的。Hewaspaintingthelabthewholedayyesterday.昨天他一整天都在粉刷实验室。一般过去时的时间状语主要有:yesterday(morning,afternoon,evening),lastnight(week,month,year),ago,thedaybeforeyesterday,in2003,justnow,longlongago,oneday等。过去进行时的时间状语有:atthis/thattimeyesterday,thewholeevening,alldayyesterday等。试比较:HeintroducedTomtousjustnow.刚才他向我们介绍了汤姆。Shewasdoingsomewashingalldayyesterday.昨天她洗了一整天的衣服。1.Suddenly,allthelightsinmyhouseweregoingoff/wentoff.Therewasheavyrainoutside.Underlinethecorrectwords.2.—Icalledyouupatseveno’clocklastnight,butnobodyanswered.—Really?I’msorry,butIwasteaching/taughtapianolessonatschool.3.—Iwasseeing/sawyouandTominthelibraryjustnow.—Oh,weshowed/wereshowingseveralvisitorsaroundtheschool.Writesentencesaboutwhatyouweredoing.1.Ataboutseveno’clocklastnight,______________________________.2.Thismorning,onmywaytoschool,______________________________.3.Thistimelastyear,_____________________________________.4.LastSaturday,fromabout1pmto4pm,____________________________.…Iwashavingdinner…ImetmyfriendLingling…Iwasstayingatmygrandparents’house…IwasplayingintheparkWorkingroupsoffour.Playachaingame.A:Ateighto’clocklastnightIwaswatchingTV.Howaboutyou,B?B:Ateighto’clocklastnightIwassleeping.Howaboutyou,C?C:Ateighto’clocklastnightIwashavingdinner.Howaboutyou,D?D:…Writedownwhateachmemberofyourgroupwasdoingateighto’clocklastnight.SunLiwaswatchingTVateighto’clocklastnight.1.____________________________________________.MingHuiwasplayingtheguitarateighto’c...