Unit12Lifeisfulloftheunexpected.SectionA1(1a-2d)一、教学目标：1.语言知识目标：1)能掌握以下单词及短语：unexpected,bythetime,backpack,oversleep,ring,cream,workday,pie,give…alift,2)掌握过去完成时时态的结构及用法。2.情感态度价值观目标：学会合理安排自己的学习和生活，做到守时守信。二、教学重难点1.教学重点：过去完成时的用法。2.教学难点：用过去完成时叙述过去的事件。三、教学过程Ⅰ.Warm-upGreeting.Ⅱ.Presentation1.AskSstolookatthepicturesin1aandask:Whathappenedtothegirl?2.Thinkanddiscussingroup:Whathappenedtothegirl?Possibleanswers:Shegotuplate.Bythetimeshegotup,someonehadalreadygotteninthebathroom.Sherushedoutthedoor.Thebushadleftbeforeshegottothestation.Whenshegottoschool,sherealizedshehadleftherbackpackathome.….3.AskSstotellastoryaboutthegirl.III.Finish4aandchecktheanswersⅣ.ListeningWorkon1b.1.Listentothetapeof1b.Completethesentences.1.BythetimeIgotup,mybrother_____already_______intheshower.2.BythetimeIgotoutside,thebus_____already______.3.WhenIgottoschool,IrealizedI___________mybackpackathome.2.过去完成时用法：(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。V.Listening1.Listentothetapeforthefirsttimeandfinish2a.ListentoMarycontinueherstory.Numberthepictures[1-4]inthecorrectorder.2.Listentothetapeforthesecondtimeandfinish2b.Fillintheblankswiththecorrectformsoftheverbsinbrackets.Thenlistenagainandcheckyouranswers.1.WhenI_______(get)home,IrealizedI________(leave)mykeysinthebackpack.2.BythetimeI_____(get)backtoschool,thebell_________(ring).3.BythetimeI_______(walk)intoclass,theteacher__________(start)teachingalready.3.Retellthestory.通过听力训练，进一步熟悉练习过去完成时的构成和用法。VI.Askstudentstoretellthestoryingroups.VII.Read2dandanswersomequestions,thencheckthem,VIII.Languagepoints1.Lifeisfulloftheunexpected.unexpectedadj.出乎意料的；始料不及的e.g.ItwillnotbeunexpectedifTomcomeslateagain,becauseheisalwaysliketh