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1、 Unit 12Life is full of the unexpected.Lookatthefollowingpicturesandtalkaboutwhatyouusuallydointhemorning.Iamwakenupbytheclock.Then,Istaysleepyforawhile.Finally,Idecidetogetup!Then,Ibrushmyteeth,stillsleepy.Next,Ihavebreakfast,feelingbetter.Itakemyschoolbagandleavehome.Icometothebusstationandwaitfor
2、theschoolbus.Intheend,Iarriveatschoolandstartthewholedaysclasses.Grammar FocusWhenIgottoschool,IrealizedthatIhadleftmybackpackathome.BythetimeIgottoschool,thebellhadrung.BeforeIgottothebusstop,thebushadalreadyleft.IwasabouttogouptomyofficewhenIdecidedtogetacoffeefirst.AsIwaswaitinginlinewiththeother
3、officeworkers,Iheardaloudsound.一、概念一、概念过去完成时表示一个动作或状态在过去某一过去完成时表示一个动作或状态在过去某一时间或动作之前已经完成或结束,也可能是时间或动作之前已经完成或结束,也可能是早已完成或结束,即早已完成或结束,即“过去的过去过去的过去”;也可;也可以以指过去的动作延续到过去的某个时刻。指过去的动作延续到过去的某个时刻。二、结构二、结构“had +动词的过去分词动词的过去分词”三、用法三、用法 【实战演练实战演练】用所给词的适当形式填空。用所给词的适当形式填空。1.WhenIgottherethebus_(go).2.BythetimeIgo
4、ttoclass,theteacher_(start)teaching.3.We_(learn)over1,000wordsbytheendoflastterm.4.I_(clean)theroombeforehearrivedhere.hadgonehadstartedhadlearnthadcleanedby the time 的用法的用法bythetime意为意为“到到时候时候(为止为止)”,是,是一一个介词短语,在句中常起到连词的作用,个介词短语,在句中常起到连词的作用,引导时间状语从句。引导时间状语从句。1.如果如果从句中的谓语动词是一般过去式,那从句中的谓语动词是一般过去式,那么主
5、句的谓语动词通常用过去完成时么主句的谓语动词通常用过去完成时,表,表示示“截止到从句动作发生时,主句动作已截止到从句动作发生时,主句动作已经完成,即过去的过去经完成,即过去的过去”。例:例:Bythetimeyoucame back,Ihad finishedthisbook.你回来时我已经把这本书看完了。你回来时我已经把这本书看完了。(从句谓语动词(从句谓语动词cameback为一般过去为一般过去时,所以主句动作用过去完成时时,所以主句动作用过去完成时hadfinished,表示过去的过去。)表示过去的过去。)2.如果如果从句中的谓语动词为一般现在时或从句中的谓语动词为一般现在时或现在完成时
6、,那么从句中的谓语动词常用现在完成时,那么从句中的谓语动词常用将来完成时将来完成时,表示,表示“截止到将来的某一时截止到将来的某一时刻为止,主句动作将已完成。刻为止,主句动作将已完成。”例:例:BythetimeIgethome,theywill have left.我到家时他们将已经离开。我到家时他们将已经离开。BythetimeIgraduatenextyear,Iwill have livedhereforfiveyears.到明年毕到明年毕业时,我将已经在这待了五年了。业时,我将已经在这待了五年了。(1)bytheendof+时间点时间点意为意为“到到结束时结束时”+过去过去的时间点,
7、主句用的时间点,主句用过去完成过去完成时;时;例:例:By the end oflastyear,IhadstayedinXianforsevenyears.到去年结束时,我到去年结束时,我已经在西安待了已经在西安待了7年了。年了。+将来将来的时间点,的时间点,主句用主句用将来完成将来完成时;时;例:例:By the end ofnextmonth,Iwillhavefinishedmynewbook.到下个月结束时我到下个月结束时我将要完成我的新书。将要完成我的新书。(2)by+时间点时间点意为意为“到到为止;截止为止;截止时时”+现在的时间点,主句用现在完成时;现在的时间点,主句用现在完成
8、时;例:例:By now,Ihavefinishedallmyhomework.截止现在,我已经完成了所有的作业。截止现在,我已经完成了所有的作业。+过去的时间点,主句用过去完成时;过去的时间点,主句用过去完成时;例:例:By yesterday,thebuildinghadbeencompleted.截止昨天,这个建筑就已经完成了。截止昨天,这个建筑就已经完成了。+将来的时间点,主句用将来完成时。将来的时间点,主句用将来完成时。例:例:By tomorrow,allthestudentswillhavebeenoutoftheschool.到明天所有的学生到明天所有的学生都将离校。都将离校。
9、1.Timwentintothebathroom.Marygotup._2.Thecoffeebecamecold.Iputcreaminthecoffee._4a Make sentences using by the time or before.BythetimeMarygotup,Timhadalreadygoneintothebathroom.BeforeIputcreaminthecoffee,thecoffeehadbecomecold.2.Theteachercollectedthemathhomework.3.Igottoschool.4._5._3.Icompletedth
10、eworkformyboss.4.Theworkdayended.5._6._BythetimeIgottoschool,theteacherhadcollectedthemathhomework.Bythetimetheworkdayended,Ihadcompletedtheworkformyboss.4.Themoviestarted.5.Iarrivedatthecinema.6._7._5.Mymotherfinishedmakingtheapplepie.6.Igothomefrommylanguagecourse.7._8._9._BythetimeIarrivedattheci
11、nema,themoviehadstarted.BythetimeIgothomefrommylanguagecourse,mymotherhadfinishedmakingtheapplepie.1.BythetimeIarrivedattheparty,2.everyoneelse_already_.2.Whenheputthenoodlesintoabowl,herealizedhe_toaddthegreenbeans.4b Fill in the blanks with the correct forms of the words in the box.rushoutforgetar
12、riveatgointoshowupfindouthadshownuphadforgotten3.Bythetimemymothercamebackfrom4.themarket,I_already_thedoortogoformypianolesson.4.Beforeshegottotheairport,she_abouttheearthquake.5.Whenshe_themovietheater,sherememberedshehadforgottentofeedherdog.6.Beforeshegotachancetosaygoodbye,he_thebuilding.hadrus
13、hedouthadforgottenarrivedathadgoneinto1.BythetimeIleftforschoolinthemorning,2._2.Bytheendoftheschoolday,3._3.Bydinnertime,I_4c Write two true statements and one false statement about your day yesterday. Then ask your classmates to guess the false statement.I.I.根据汉语提示写出下面句中所缺的单词。根据汉语提示写出下面句中所缺的单词。1.I
14、gotupearlythismorningbecauseIdidntwantto_(错过错过)theearlybus.2.Thedropinpriceswasquiet_(出乎意料的出乎意料的).3.The_(工人工人)felldownandgothurt.4.Theplanewasflying_(在上面在上面)theclouds.5.Therivergoesthroughthecityfrom_(西西)toeast.missunexpectedworkerabovewestII.写出下面短语的意思。写出下面短语的意思。1.showup_2.befullof_3.arriveat_4.beab
15、outto_5.takeoff_6.turninto_7.findout_出现;露面出现;露面充满充满到达到达将要做某事将要做某事(飞机飞机)起飞起飞变成变成发现;找出发现;找出marketburnabovemissunexpectedpie1.Igotuplateand_theearlybusthismorning.2.Themountainis1,000meters_thesealevel.用方框中词的适当形式完成下面的句子。用方框中词的适当形式完成下面的句子。missedabove3.Mydaughterwentwithmetothe_andboughtclothes.4.Hiswifemadesomeapple_forsupper.5.Hebecameworriedwhenheheardofthe_news.marketburnabovemissunexpectedpiemarketpiesunexpected