Unit12SectionAGrammarFocus-4c语法课件人教版英语九年级全册

Unit12

Lifeisfulloftheunexpected.SectionAGF-4CNewwordsn.街区n.工作者；工人v.盯着看；凝视n.不信；怀疑prep.在……上面adv.在上面v.着火；燃烧(burnt,burnt;burned,burned)blockworkerstaredisbeliefaboveburnn.奶油；乳脂n.工作日

n.果馅饼；果馅派n.豆；豆荚n.市场；集市piebeanmarketcreamworkdayGrammarFocusReadaloudandfindoutthePastperfecttense.WhenIgottoschool,IrealizedthatIhadleftmybackpackathome.BythetimeIgotbacktoschool,thebellhadrung.BeforeIgottothebusstop,thebushadalreadyleft.IwasabouttogouptomyofficewhenIdecidedtogetacoffeefirst.AsIwaswaitinginlinewiththeotherofficeworkers,Iheardaloudsound.过去完成时一般过去时过去完成时是英语中的一种时态，用来表示在过去某个时间点或动作发生之前已经发生或完成的动作或状态。它通常与另一个过去的动作或时间点相呼应，用来强调先后顺序。是“过去的过去”。过去完成时1.Bynineo’clocklastnight,wehad

got200picturesfromthespaceship.2.Ihadbeenatthebusstopfor20minuteswhenabusfinallycame.3.Hesaidhehadworkedinthatfactorysince1949.4.Thetrainhadleft

beforeTinareachedthestation.GrammarFocusWhenIgottoschool,IrealizedthatIhadleftmybackpackathome.BythetimeIgotbacktoschool,thebellhadrung.BeforeIgottothebusstop,thebushadalreadyleft.IwasabouttogouptomyofficewhenIdecidedtogetacoffeefirst.AsIwaswaitinginlinewiththeotherofficeworkers,Iheardaloudsound.PastPerfectTense(过去完成时态）1.方框里是什么语法？2.其基本结构是：had+过去分词WhenIgottoschool,IrealizedthatIhadleftmybackpackathome.BythetimeIgotbacktoschool,thebellhadrung.BeforeIgottothebusstop,thebushadalreadyleft.GrammarFocus

主句为过去完成时，从句是一般过去时，主句动作发生在从句之前。IwasabouttogouptomyofficewhenIdecidedtogetacoffeefirst.AsIwaswaitinginlinewiththeotherofficeworkers,Iheardaloudsound.两个动作同时进行，主从句都是一般过去时或过去进行时。GrammarFocus过去完成时过去的过去过去某时现在将来过去完成时从过去之前的某个时间点到过去的某个时间点为止（先发生）（后发生）(1)概念

表示某动作或状态在过去某一时间或动作之前已经发生或完成，它表示动作发生的时间是“过去的过去”。

(2)构成“助动词had(用于各种人称和数)+过去分词”过去完成时过去完成时的句式类型肯定句：主语＋had＋过去分词＋…否定句：主语＋hadn’t＋过去分词＋…一般疑问句：Had＋主语＋过去分词…？

(Yes,主语＋had./No,主语＋hadn’t.)特殊疑问句：疑问词＋had＋主语＋过去分词＋…？GrammarFocus【图解】1.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。它表示动作发生的时间是“过去的过去”。

过去完成时用法①表示过去某一时间可用by,before

等构成的短语表示。②也可以用when,before

等引导的时间状语从句表示。③还可以通过状语从句或通过上下文暗示。例如：Bythetimehegothere,thebus

hadleft.

在他到达那里之前，汽车已经离开了。过去的过去过去现在将来过去完成时2.表示某一动作或状态在过去某时之前已经开始，一直延续到这一过去的时间。常用表延续的时间状语如：bytheendof+过去的时间点，bythetime+从句等。

过去完成时用法

例如:Bytheendoflastyear,shehadworkedinthe

factoryfortwentyyears.

到去年年底，她已经在这家工厂工作20年了。【图解】过去完成时过去的过去过去现在将来过去完成时由“助动词had(用于各种人称和数)+过去分词”构成，表示某动作或状态在过去某一时间或动作之前已经发生或完成，它表示动作发生的时间是“过去的过去”。过去的过去过去某时现在将来过去完成时从过去之前的某个时间点到过去的某个时间点为止（先发生）（后发生）ConceptandformsWhenIgottoschool,IrealizedthatIhadleftmybackpackathome.By

the

time

I

got

back

to

school,thebellhadrung.BeforeIgottothebusstop,thebushadalreadyleft.IwasabouttogouptomyofficewhenIdecidedtogetacoffeefirst.AsIwaswaitinginlinewiththeotherofficeworkers,Iheardaloudsound.

2.主句为过去完成时，从句是一般过去时，主句动作发生在从句之前。1.两个动作同时进行，主从句都是一般过去时或过去进行时。Conceptandformsmymomcamebacknow17:1517:00amIcleaneduptheyardBythetime...Bythetimemymomcameback,Ihadcleaneduptheyard.6:007:00现在Bythetime...BythetimeIgotup,mysisterhadalreadywashedalltheclothes.Igotupmysisterwashedalltheclothes过去的过去过去某时现在将来（先发生）（后发生）过去完成时从过去之前的某个时间点到过去的某个时间点为止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”例：Ihadhadthebackpackfor4years

bylastyear.

到去年为止，我已经买了这个背包四年了。

hadhadlastyear

now过去完成时：强调“过去的过去”；一般过去时：强调过去某一特定的时间。 ①Theyhadarrivedat

thestationbyten

yesterday.

他们昨天十点前就到车站了。

②Theyarrivedatthestationatten

yesterday.

他们昨天十点到了车站。 过去完成时和一般过去时的区别现在完成时表示的动作发生在说话之前某个没有明确说出的过去时间，侧重过去发生的动作对现在产生的影响或造成的结果，与现在有关；过去完成时的动作发生在“过去的过去”，它是一个相对的时态，不能离开过去的时间而独立存在。e.g.Wehavelearned1,000Englishwordssofar.Wehadlearned1,000Englishwordsbythen.现在完成时和过去完成时的区别Practice1.Bythetimemyparentsreachedhomeyesterday,I

_____thedinneralready.A.hadcookedB.cookedC.havecookedD.wascooked2.He____toplay____beforehewas11yearsold.A.hadlearned,pianoB.hadlearned,thepianoC.haslearned,thepianoD.learns,piano3.Bytheendoflastmonth,I_______alltheCDsof

JustinBieber.A.collectB.collectedC.havecollectedD.hadcollected4.Robertwasveryupsetthatmostofhisfriends______whenhe______attheparty.A.left;hadarrivedB.hadleft;arrivedC.left;arrivedD.hadleft;hadarrivedMakesentencesusingbythetimeorbefore.1.Timwentintothebathroom.Marygotup._______________________________________________________2.Thecoffeebecamecold.Iputcreaminthecoffee._______________________________________________________3.Theteachercollectedthemathhomework.Igottoschool._______________________________________________________4.Icompletedtheworkformyboss.Theworkdayended._______________________________________________________5.Themoviestarted.Iarrivedatthecinema._______________________________________________________6.Mymotherfinishedmakingtheapplepie.Igothomefrommylanguagecourse._______________________________________________________4aBythetimeMarygotup,Timhadalreadygoneintothebathroom.BeforeIcouldputcreaminthecoffee,thecoffeehadbecomecold.BythetimeIgottoschool,theteacherhadcollectedthemathhomework.Ihadcompletedtheworkformybossbeforetheworkdayended.ThemoviehadalreadystartedbeforeIarrivedatthecinema.BythetimeIgothomefrommylanguagecourse,mymotherhadfinishedmakingtheapplepie.4bFillintheblankswiththecorrectformsofthewordsinthebox.rushout

forget

arriveat

gointo

showup

findout1.BythetimeIarrivedattheparty,everyoneelse________already______________.2.Whenheputthenoodlesintoabowl,herealizedhe_____________toaddthegreenbeans.hadshoweduphadforgotten3．Bythetimemymothercamebackfromthemarket,I_____already___________ofthedoortogotomypianolesson.4．Beforeshegottotheairport,she_____________abouttheearthquake.5．Whenshe______________themovietheater,sherememberedshehadforgottentofeedherdog.

6．Beforeshegotachancetosaygoodbye,he_____________thebuilding.

hadrushedouthadfoundoutarrivedathadgottenintorushout

forget

arriveat

gointo

showup

findoutrushoutforgetarriveatgointoshowupfindoutFillintheblankswiththecorrectformsofthewordsinthebox.4b1.BythetimeIarrivedattheparty,everyoneelse____already__________.2.Whenheputthenoodlesintoabowl,herealizedhe____________toaddthegreenbeans(n.豆).3.Bythetimemymothercamebackfromthemarket(n.市场),I____already__________ofthedoortogotomypianolesson.4.Beforeshegottotheairport,she____________abouttheearthquake.5.Whenshe_________themovietheater,sherememberedshehadforgottentofeedherdog.6.Beforeshegotachancetosaygoodbye,he____________thebuilding.hadshoweduphadforgottenhadrushedouthadfoundoutarrivedathadgoneintoWritetwotruestatementsandonefalsestatementaboutyourdayyesterday.Thenaskyourclassmatestoguessthefalsestatement.1.BythetimeIleftforschoolinthemorning,_________________________

_________________________

_________________________2.Bytheendoftheschoolday,

____________________________________________________

__________________________3.Bydinnertime,I______________________

I______________________

I____________________________Ihadalreadyhadbreakfast.Ihadalreadytakenashower.Ihadalreadywashedmyface.IhavegotapresentfromTom.Ihadhadfinishedthetest.Ihadfinishedmyhomework.hadhadtoomanyapples.hadeatenplentyofmeat.hadfinishedallthehousework.4c1．WhenIgothome,IrealizedI________mykeysintheclassroom.A．left B．leave C．leaving D．hadleft2．Bythetimehewasfourteen,he________upasmallchemistrylab.A．hadset B．hasset C．set D．sets3．Whenwehurriedtothecinema,thefilm________fortenminutes.A．hadbeenon B．hadbegun C．hadbegunon D．begun4．BythetimeIrushedintothetheater,theshow________forhalfanhour.A．hadbegun B．began C．wason D．hadbeenonExercise一、单项选择。5．—Tomgotafullmarkinthequizyesterday.—Yes,he________he________thenotestwice.A．said;hadgoneover B．said;hasgoneoverC．says;willgoover D．says;isgoingtogoover6．—Hello,UncleJohn.AreyoustillonMountHuangshan—Oh,no.Wearebackhome.W