人教版新目标英语九级UniLifeisfullofheunexecedSecionAGrammarFocusc课件

Unit12Lifeisfulloftheunexpected.SectionAGrammarFocus–4c1思考与讨论：

1.在以下的时间状语从句中，主句和从句的动作是先后发生还是同时发生？

2.主从句都用一般过去时态的时间状语从句的引导词有什么？Whenhecamein,thestudentsstoodup.Whenthebabysawhermother,shestoppedcrying.Hewasabouttowatchamoviewhenhisparentsknockedatthedoor.Theywereabouttogetonthebuswhentheyheardsomeoneshout.AsIwasstandinginfrontoftheteacher’soffice,Isawaboyfightwithanotherboy.Ashewasdoinghousework,abirdflewintothekitchen.2

1）在以上的时间状语从句中，主句和从句的动作是同时发生，或者是在进行一个动作时，另外一个动作突然发生。

2）主从句都用一般过去时态的时间状语从句引导词有（when,as）等Whenhecamein,thestudentsstoodup.Whenthebabysawhermother,shestoppedcrying.Hewasabouttowatchamoviewhenhisparentsknockedatthedoor.Theywereabouttogetonthebuswhentheyheardsomeoneshout.AsIwasstandinginfrontoftheteacher’soffice,Isawaboyfightwithanotherboy.Ashewasdoinghousework,abirdflewintothekitchen.3GrammarFocusWhenIgotoschool,IrealizedthatIhadleftmybackpackathome.BythetimeIgotbacktoschool,thebellhadrung.BeforeIgottothebusstop,thebushadalreadyleft.IwasabouttogouptomyofficewhenIdecidedtogetacoffeefirst.AsIwaswaitinginlinewiththeotherofficeworkers,Iheardaloudsound.4WhenIgotoschool,IrealizedthatIhadleftmybackpackathome.BythetimeIgotbacktoschool,thebellhadrung.BeforeIgottothebusstop,thebushadalreadyleft.IwasabouttogouptomyofficewhenIdecidedtogetacoffeefirst.AsIwaswaitinginlinewiththeotherofficeworkers,Iheardaloudsound.讨论：为什么主句分别使用过去完成时态和一般过去时态在使用不同时态时从句和主句的动作的先后顺序。5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。6(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。7主语＋hadnot／hadn’t+p.p.+其它.Had+主语＋p.p.+其它?主语＋had+p.p.+其它.强调过去某一个动作发生在另一个动作前常常用过去完成时态。过去完成时的结构过去完成时的用法过去完成时的否定形式过去完成时的疑问形式8过去完成时的判断依据:

由“过去的过去”来判定。

过去完成时表示“过去的过去”，先发生的动作用过去完成时，后发生的动作用一般过去时。

例：WhenIgottothestation,thetrainhadalreadyleft.

当我到车站时，火车已经离开了。Afterhehadfinishedhishomework,hewenttobed.完成作业后他就去睡觉了。

first

first9构成：助动词had+动词的过去分词用法：1.过去完成时动词表示过去某一时间或某一动作之前完成的动作或状态。强调过去某一动作发生在另一动作之前时。1.他说他以前见过你。Hesaidthathe______________(see)youbefore.hadseen2.到六点钟为止他们已经工作八小时了。Bysixo’clockthey______________(work)foreighthours.hadworked102.过去完成时词可以表示过去某一时刻之前发生的动作或呈现的状态，这一动作一直持续或将继续下去。Bysixo’clockthey____________(work)foreighthours.WhenIcametoGZ,he_____________(be)thereforalongtime.用法：1.到了六点钟为止，他们已经工作了八小时了。2.我到广州时，他在那里很长时间了。hadworkedhadbeen3.到上个月中旬我们在北京住了有五年时间了。Bythemiddleoflastmonthwe______________(live)inBeijingforfiveyears.hadlived111.到昨晚上，他已写完那封信。Byyesterdayeveninghe___________(write)thatletter.2.他说他以前见过你。Hesaidthathe____________(see)youbefore.3.当我进来时，他已做完了作业。WhenIcameinhe________________(finish)hishomework.过去完成时与bythen(截止到那时);by9o’clock(直到九点钟)bytheendof…(在…结束/末之前);bythetime…(在…时之前);uptillthen(直到那时);upuntillastnight(直到昨晚）等连用，表示过去的过去。hadwrittenhadseenhadfinished123.过去完成时和already,just,ever,yet等连用表示过去的过去。用法：例如：1.他告诉我说他们队已经赢了。Hetoldmethathisteam_________already___________(win).hadwon2.她说她仍没去过长城。Shesaidthatshe_______________(notgoto)theGreatWallyet.hadn’tbeento13用法：过去完成时与when,before,assoonas,

till/until

等引导时间状语的从句连用，强调动作发生的时间前后。例如：1.她到家之前她的孩子已经睡着了。Whenshegothomeherchildren____________(sleep).hadslept2.在他们到达之前电影已经开始了。Beforetheyarrivedherethefilm_________already___________(start).hadstartedLastnight,assoonasI_______________

(finish)myworkIwenttosleep.3.我完成作业了就去睡觉了。hadfinished141.一般过去时表示在过去某时发生的动作或存在的状态。例：WestartedtolearnEnglish5yearsago.我们五年前开始学英语。对比一般过去时、现在完成时与过去完成时5yearsago

now152.现在完成时表示的动作发生在过去，但侧重对现在产生的结果或造成的影响，与现在有关。其结构为：“助动词have（has）+过去分词”。例：WehavelearnedEnglishfor5years.我们已经学了五年的英语了。5yearsago

havelearnednow163.

过去完成时表示在过去某个时间或动作之前已经发生或完成了的动作或存在的状态，即“过去的过去（past-in-the-past）”。例：WehadlearnedEnglish4yearbylastyear.

到去年为止，我们已经学英语四年了。

pastinthepastpast

now171.We____________(learn)2000Englishwordssincewecametothisschool.Theteachersaidwe_____________(learn)2000Englishwordssincethen.We____________(learn)500wordslastterm.We______________(learn)2000wordsbytheendoflastterm.havelearnedhadlearnedlearnedhadlearned182024/10/9192.He_________(have)ameetingnextweek.He_________(have)ameetingtwoweeksago.Hetoldmehe__________(have)ameetingtwoweeksbefore.3.________you________(be)totheGreatWall?Theteacheraskedifyou____________(be)totheGreatWall?hadhadhadHavebeenhadbeenwillhave2021________________________________________________________________________________1.Timwentinto

thebathroom.Marygotup.BythetimeMarygotup，Timhadalreadygoneintothebathroom.4aMakesentencesusingbythetimeorbefore.222.Thecoffeebecamecold.

Iputcream

inthecoffee.Beforethecoffeebecomecold,Ihadputcreamintheit.________________________________________________________________________________233.Theteachercollectedthemathhomework.

Igottoschool.________________________________________________________________________________BythetimeIgottoschool,theteacherhadcollectedthemathhomework.244.Icompletedthe

workformyboss.Theworkdayended.Beforetheworkdayended,Ihadcompletedtheworkformyboss.________________________________________________________________________________255.Themoviestarted.Iarrivedatthecinema.________________________________________________________________________________BythetimeIarrived,themoviehadstarted.266.Mymotherfinishedmakingtheapplepie.Igothomefrommylanguagecourse.BythetimeIgothome,mymotherhadfinishedmakingtheapplepie.________________________________________________________________________________2728rushout

forget

arriveatgointo

showupfindout1.BythetimeIarrivedattheparty,

everyoneelse__________already______.2.Whenheputthenoodlesintoabowl,he

realizedhe_____________toaddthegreen

beans.hadshowed

uphadforgotten4bFillintheblankswiththecorrectformsofthewordsinthebox.293.Bythetimemymothercamebackfromthe

market,I______already__________the

doortogoformypianolesson.4.Beforeshegottotheairport,she________

_________abouttheearthquake.5.Whenshe_____________themovietheatre,

sherememberedshehadforgottentofeed

herdog.6.Beforeshegotachancetosaygoodbye,

he_____________thebuilding.had

rushedout

hadfoundoutarrivedathadgoneinto304cWritetwotruestatementsandonefalsestatementaboutyourdayyesterday.Thenaskyourclassmatestoguessthefalsestatement.311.BythetimeIleftforschoolinthemorning,_______________________________________2.Bytheendoftheschoolday,

____________________________________________________3.Bydinnertime,I_________________________________________________________32Exercises331.

I

happened

_____

him

in

the

park

yesterday.A.

meet

B.

meeting

C.

met