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1、Unit12Unit12Lifeisfulloftheunexpected.SectionA11a-2dWarmingupDoyourememberanyunexpectedsituationinyourdailylife?Whatdoyouthinkofthepeopleinthesepictures?Theylookscared/sad…Hebrokehisarm.Heisgettinganelectricshock.Whathappenedtotheboy?Lifeisfulloftheunexpected.Iwa
2、slateforworktoday.WhenIgotup,Ifoundmyclockhadrung.Itwas7:30.WhenIwentout,Ifoundthebushadalreadyleft.1aLookatthepictures.Whathappenedtothegirl?Shegotuplate.Sheoverslept.Tellastoryoversleep(overslept,overslept)v.睡过头；睡得太久复合词中的over常有“过于……”之意Don’toversleep,Dean!Youare
3、tobelate.迪恩，别睡过头了！你要迟到了。Bythetimeshegotup,someonehadalreadygotteninthebathroom.Sherushedoutthedoor.在……以前Thebushadleftbeforeshegottothestation.Whenshegottoschool,sherealizedshehadleftherbackpackathome.….n.背包；旅行包1.BythetimeIgotup,mybrother_____already_______inthesh
4、ower.2.BythetimeIgotoutside,thebus_____already______.3.WhenIgottoschool,IrealizedI___________mybackpackathome.1bListentoMarytalkingabouthermorning.Completethesentences.hadgottenhadlefthadleft过去完成时(1)构成：由“助动词had(用于各种人称和数)+过去分词”构成否定式：hadnot+过去分词缩写形式：hadn’t(2)用法：过去完
5、成时表示在过去某一时间或动作之前已经发生或完成了的动作。(3)它所表示动作发生的时间是“过去的过去”。①表示过去某一时间可用by,before等构成的短语来表示。②也可以用when,before等引导的时间状语从句来表示。③还可以通过状语从句或通过上下文暗示。例如：WhenIgotthere,youhadalreadyeatenyourmeal.当我到达那里时，你已经开始吃了。Bythetimehegothere,thebushadleft.在他到达那里之前，汽车已经离开了。Practice1cTaketurnsbein
6、gMary.Lookatthepicturesandtalkaboutwhathappenedthismorning.Ioverslept.BythetimeIgotup,mybrotherhadalreadygottenintheshower.Whathappened?So,afterheoutoftheshower,Itookaquickshowerandgotdressed.ButbythetimeIwentoutside,thebushadalreadyleft.Oh,whatapain!Oh,yes!SoIra
7、nallthewaytoschool.ButwhenIgottoschool,IrealizedIhadleftmybackpackathome.Oh,no!Nowonderyoulookstressed.2aListentoMarycontinueherstory.Numberthepictures[1-4]inthecorrectorder.43122bFillintheblankswiththecorrectformsoftheverbsinbrackets.Thenlistenagainandcheckyoura
8、nswers.1.WhenI_______(get)home,IrealizedI________(leave)mykeysinthebackpack.2.BythetimeI_____(get)backtoschool,thebell_________(ring).3.BythetimeI_______(walk)
