Unit12SectionAGrammarFocus-4c語法課件人教版英語九年級全冊

Unit12

Lifeisfulloftheunexpected.SectionAGF-4CNewwordsn.街區(qū)n.工作者；工人v.盯著看；凝視n.不信；懷疑prep.在……上面adv.在上面v.著火；燃燒(burnt,burnt;burned,burned)blockworkerstaredisbeliefaboveburnn.奶油；乳脂n.工作日

n.果餡餅；果餡派n.豆；豆莢n.市場；集市piebeanmarketcreamworkdayGrammarFocusReadaloudandfindoutthePastperfecttense.WhenIgottoschool,IrealizedthatIhadleftmybackpackathome.BythetimeIgotbacktoschool,thebellhadrung.BeforeIgottothebusstop,thebushadalreadyleft.IwasabouttogouptomyofficewhenIdecidedtogetacoffeefirst.AsIwaswaitinginlinewiththeotherofficeworkers,Iheardaloudsound.過去完成時一般過去時過去完成時是英語中的一種時態(tài)，用來表示在過去某個時間點或動作發(fā)生之前已經(jīng)發(fā)生或完成的動作或狀態(tài)。它通常與另一個過去的動作或時間點相呼應(yīng)，用來強調(diào)先后順序。是“過去的過去”。過去完成時1.Bynineo’clocklastnight,wehad

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

beforeTinareachedthestation.GrammarFocusWhenIgottoschool,IrealizedthatIhadleftmybackpackathome.BythetimeIgotbacktoschool,thebellhadrung.BeforeIgottothebusstop,thebushadalreadyleft.IwasabouttogouptomyofficewhenIdecidedtogetacoffeefirst.AsIwaswaitinginlinewiththeotherofficeworkers,Iheardaloudsound.PastPerfectTense(過去完成時態(tài)）1.方框里是什么語法？2.其基本結(jié)構(gòu)是：had+過去分詞WhenIgottoschool,IrealizedthatIhadleftmybackpackathome.BythetimeIgotbacktoschool,thebellhadrung.BeforeIgottothebusstop,thebushadalreadyleft.GrammarFocus

主句為過去完成時，從句是一般過去時，主句動作發(fā)生在從句之前。IwasabouttogouptomyofficewhenIdecidedtogetacoffeefirst.AsIwaswaitinginlinewiththeotherofficeworkers,Iheardaloudsound.兩個動作同時進行，主從句都是一般過去時或過去進行時。GrammarFocus過去完成時過去的過去過去某時現(xiàn)在將來過去完成時從過去之前的某個時間點到過去的某個時間點為止（先發(fā)生）（后發(fā)生）(1)概念

表示某動作或狀態(tài)在過去某一時間或動作之前已經(jīng)發(fā)生或完成，它表示動作發(fā)生的時間是“過去的過去”。

(2)構(gòu)成“助動詞had(用于各種人稱和數(shù))+過去分詞”過去完成時過去完成時的句式類型肯定句：主語＋had＋過去分詞＋…否定句：主語＋hadn’t＋過去分詞＋…一般疑問句：Had＋主語＋過去分詞…？

(Yes,主語＋had./No,主語＋hadn’t.)特殊疑問句：疑問詞＋had＋主語＋過去分詞＋…？GrammarFocus【圖解】1.表示在過去某一時間或動作之前已經(jīng)發(fā)生或完成了的動作。它表示動作發(fā)生的時間是“過去的過去”。

過去完成時用法①表示過去某一時間可用by,before

等構(gòu)成的短語表示。②也可以用when,before

等引導(dǎo)的時間狀語從句表示。③還可以通過狀語從句或通過上下文暗示。例如：Bythetimehegothere,thebus

hadleft.

在他到達那里之前，汽車已經(jīng)離開了。過去的過去過去現(xiàn)在將來過去完成時2.表示某一動作或狀態(tài)在過去某時之前已經(jīng)開始，一直延續(xù)到這一過去的時間。常用表延續(xù)的時間狀語如：bytheendof+過去的時間點，bythetime+從句等。

過去完成時用法

例如:Bytheendoflastyear,shehadworkedinthe

factoryfortwentyyears.

到去年年底，她已經(jīng)在這家工廠工作20年了?！緢D解】過去完成時過去的過去過去現(xiàn)在將來過去完成時由“助動詞had(用于各種人稱和數(shù))+過去分詞”構(gòu)成，表示某動作或狀態(tài)在過去某一時間或動作之前已經(jīng)發(fā)生或完成，它表示動作發(fā)生的時間是“過去的過去”。過去的過去過去某時現(xiàn)在將來過去完成時從過去之前的某個時間點到過去的某個時間點為止（先發(fā)生）（后發(fā)生）ConceptandformsWhenIgottoschool,IrealizedthatIhadleftmybackpackathome.By

the

time

I

got

back

to

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

2.主句為過去完成時，從句是一般過去時，主句動作發(fā)生在從句之前。1.兩個動作同時進行，主從句都是一般過去時或過去進行時。Conceptandformsmymomcamebacknow17:1517:00amIcleaneduptheyardBythetime...Bythetimemymomcameback,Ihadcleaneduptheyard.6:007:00現(xiàn)在Bythetime...BythetimeIgotup,mysisterhadalreadywashedalltheclothes.Igotupmysisterwashedalltheclothes過去的過去過去某時現(xiàn)在將來（先發(fā)生）（后發(fā)生）過去完成時從過去之前的某個時間點到過去的某個時間點為止過去完成時表示在過去某個時間或動作之前已經(jīng)發(fā)生或完成了的動作或存在的狀態(tài)，即“過去的過去”例：Ihadhadthebackpackfor4years

bylastyear.

到去年為止，我已經(jīng)買了這個背包四年了。

hadhadlastyear

now過去完成時：強調(diào)“過去的過去”；一般過去時：強調(diào)過去某一特定的時間。 ①Theyhadarrivedat

thestationbyten

yesterday.

他們昨天十點前就到車站了。

②Theyarrivedatthestationatten

yesterday.

他們昨天十點到了車站。 過去完成時和一般過去時的區(qū)別現(xiàn)在完成時表示的動作發(fā)生在說話之前某個沒有明確說出的過去時間，側(cè)重過去發(fā)生的動作對現(xiàn)在產(chǎn)生的影響或造成的結(jié)果，與現(xiàn)在有關(guān)；過去完成時的動作發(fā)生在“過去的過去”，它是一個相對的時態(tài)，不能離開過去的時間而獨立存在。e.g.Wehavelearned1,000Englishwordssofar.Wehadlearned1,000Englishwordsbythen.現(xiàn)在完成時和過去完成時的區(qū)別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.市場),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、單項選擇。5．—Tomgotafullmarkinthequizyesterday.—Yes,he________he________thenotestwice.A．said;hadgoneover B．said;hasgoneoverC．says;willgoover D．says;isgoingtogoover6．—Hello,UncleJohn.AreyoustillonMountHuangshan—Oh,no.Wearebackhome.W