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1、Unit10BythetimeIgotoutside,thebushadalreadyleft.1、Whatdoyouusuallydointhemorningbeforeschool?DiscussbrushmyteethtakeashowerhavebreakfastgotoschooloversleepLookatthepicturesofTina’smorningandseewhathappenedtoher?Sheoverslept.Someonewastakingashower.Thebusleft.Shehadtorunt
2、oschoolquickly.Sheleftherbackpackathome.leavesth+sp表示把某物遗忘在某地此去的leave不能用forget替换。A:Whathappenedtoher?B:Sheoverslept.Bythetimeshegotoutside,thebushadalreadyleft.Bythetimeshegotoutside,thebushadalreadyleft.她出去的时候,公共汽车已经开走了.bythetime意思是“到…的候”,相当于when,/“到….之前”后接过去时的句子.thebus
3、hadalreadyleft过去完成时（过去的过去）had+过去分词Hesatonmychair 10:30am10:32amIcamebackBythetimeIcameback,hehadsatonmychair.Icamebacknow9:00am8:59amTheboystoodupBythetimeIcameback,theboyhadstoodup.Igottoschool.now6:40am6:30amTheteachercameintotheclassroom.BythetimeIgottoschool,theteac
4、herhadcomeintotheclassroom.mymothercookeddinner 6:30pm7:oopmIgothomeBythetimeIgothome,mymotherhadcookeddinner.Thebabyslept 9:30pm10:00pmThemothercamehomeBythetimethemothercamehome,thebabyhadslept1b1.BythetimeIgotup,mybrotheralready2.BythetimeIgotoutside,thebusalready.3.W
5、henIgottoschool,IrealizedImybackpackathome.gotteninashower.hadhadhadleftleftHad+过去分词IhadYouhadHehad+过去分词TheyhadWehad没有人称，数的变化本课出现的主要动词的过去式和过去分词getgotgotten/gotgowentgoneleaveleftleftstartstartedstartedringrangrungoversleepoversleptoverslept1、表示过去的过去2.通常由when或by引导的短语或者从句做
6、时间状语或时间状语从句。①Bytheendoflastyear,IhadlearnedaboutonethousandEnglishwords.②Bythetimehewastwenty,hehadwonabouttenmedals.③WhenIgotthere,theyhadalreadyleft.过去完成时态的用法：2、常用在宾语从句中Hetoldmehehadalreadyfinishedhishomework.3、体现在上下文中Ididn’tgotothemoviesyesterdaybecauseIhadseenittwice
7、.1.WhenI(gethome),I(realize)I(leave)mybooksintheschool.2.BythetimeI(get)backtoschool,theclass(begin).3.BythetimeI(walk)intoclass,theteacher(start)teachingalready.gothomegothadbegunwalkedhadstartedrealizedhadleftMakeyourownsentences1.Bythetime……2whenI…….,Summary1.UsefulEx
8、pressions:oversleep/takeashowerleavesth+sp/bythetime2.TargetLanguage:A:Whathappened?B:Ioverslept.Bythet
