Unit13Weretryingtosavetheearth!SectionAGrammarFocus4c課件人教版九年級英語全冊

Unit13

Wearetryingtosavetheearth!SectionAGrammarFocus~4c九年級全一冊

人教版通過本課的學(xué)習(xí)，學(xué)生能夠：復(fù)習(xí)現(xiàn)在進(jìn)行時(shí)/usedto/被動語態(tài)/現(xiàn)在完成時(shí)/情態(tài)動詞。LearningGoalsHowmanytenses(時(shí)態(tài))havewelearned?Whatarethey?WarmingUp一般現(xiàn)在時(shí)、一般過去時(shí)、一般將來時(shí)現(xiàn)在進(jìn)行時(shí)、過去進(jìn)行時(shí)現(xiàn)在完成時(shí)、過去完成時(shí)GrammarFocus.被動語態(tài)結(jié)構(gòu)一般時(shí)進(jìn)行時(shí)完成時(shí)時(shí)態(tài)現(xiàn)在am/is/are+過去分詞過去was/were+過去分詞將來will/shallbe+過去分詞過去將來would/shouldbe+過去分詞現(xiàn)在am/is/arebeing+過去分詞過去was/werebeing+過去分詞現(xiàn)在have/hasbeen+過去分詞過去hadbeen+過去分詞將來will/shallhavebeen+過去分詞過去將來would/shouldhavebeen+過去分詞被動語態(tài)：Passivevoice定義：表示主語是動作的承受者，即行為動作的對象的一種語態(tài)。結(jié)構(gòu)：be+過去分詞e.g.Anewschoolwasbuiltlastyear.Ourclassroomiscleanedeveryday.Let’sreview.被動語態(tài)結(jié)構(gòu)不同結(jié)構(gòu)的被動語態(tài)肯定句式被動語態(tài)的基本結(jié)構(gòu)是：主語+be動詞+過去分詞+其他。否定句式被動語態(tài)的基本結(jié)構(gòu)是：主語+be動詞+not+過去分詞+其他。一般疑問句式被動語態(tài)的基本結(jié)構(gòu)是：Be動詞+主語+過去分詞+其他。特殊疑問句被動語態(tài)的基本結(jié)構(gòu)是：特殊疑問詞+be動詞+主語+過去分詞+其他。get+過去分詞這個(gè)要強(qiáng)調(diào)動作的發(fā)生，基本結(jié)構(gòu)是：主語+get+過去分詞+其他。有情態(tài)動詞的被動語態(tài)基本結(jié)構(gòu)是：主語+情態(tài)動詞+be+過去分詞+其他。usedtodosth.表示過去常常做某事,而現(xiàn)在往往不了,后接動詞原形。beusedtodoingsth.

表示習(xí)慣于做某事e.g.Iusedtogetupatsixo’clock.Joeisusedtodrinkingacupofcoffeeeverymorning.usedtodo與beusedtodoing被動語態(tài)：Passivevoice定義：表示主語是動作的承受者結(jié)構(gòu)：be+過去分詞不同時(shí)態(tài)的被動語態(tài)結(jié)構(gòu)(以動詞do為例):一般現(xiàn)在時(shí):am/is/are+done一般過去時(shí):was/were+done一般將來時(shí):willbe/is(/am/are)goingtobe+done含情態(tài)動詞:can/may/must...+be+done

1.

我們不能在教室里吃東西。2.首先你必須完成作業(yè)。3.他現(xiàn)在不可能在家。4.她一定知道這個(gè)問題的答案。Youmustfinishyourhomeworkfirst.Hecan’tbeathomenow.

Shemustknowtheanswertothisquestion.Wecan’teatintheclassroom.TranslatethefollowingChineseintoEnglish.練一練We’retryingtosavetheearth.Theriverusedtobesoclean.

Theairisbadlypolluted.Noscientificstudieshaveshownthatsharkfinsaregoodforhealth.Weshouldhelpsavethesharks.Readthechartandtellwhatgrammarpointswearegoingtoreviewtoday.PresentationPresentprogressiveusedtoPassivevoicePresentperfectModalverbs現(xiàn)在進(jìn)行時(shí)：時(shí)態(tài)：Let’sreview!

什么時(shí)候使用現(xiàn)在進(jìn)行時(shí)？

現(xiàn)在進(jìn)行時(shí)的標(biāo)志性詞語有哪些？現(xiàn)在分詞的構(gòu)成規(guī)則有哪些？現(xiàn)在完成時(shí)基本結(jié)構(gòu)基本用法標(biāo)志詞have/has+過去分詞1.過去發(fā)生或已經(jīng)完成的動作對現(xiàn)在造成影響或結(jié)果2.從過去某一時(shí)間開始一直延續(xù)到現(xiàn)在并還可能繼續(xù)延續(xù)下去的動作already,yet,ever,never,just,before,once,twice,recently,sofar,for+時(shí)間段，since

+時(shí)間點(diǎn)/從句。現(xiàn)在完成時(shí):Presentperfectbeusedto(doing)sth.

習(xí)慣于(做)某事e.g.I’m

usedtowalkingtoschoolnow.

我現(xiàn)在習(xí)慣步行去學(xué)校。

ThecityishotandwetandIhavebeenusedtoit.

這座城市又熱又潮濕，而我已經(jīng)習(xí)慣了這里?，F(xiàn)在進(jìn)行時(shí)基本結(jié)構(gòu)基本用法標(biāo)志詞be(am/is/are)+動詞-ing1.表示現(xiàn)在正在進(jìn)行或發(fā)生的動作。2.表示現(xiàn)階段或當(dāng)前一段時(shí)間之內(nèi)

正在進(jìn)行的動作。now、look、listen、thesedays等現(xiàn)在進(jìn)行時(shí)Let’sreview.被動語態(tài)表意功能講話者不知道動作的執(zhí)行者，不必或不便說出動作的執(zhí)行者（這時(shí)可省掉by引導(dǎo)的短語）借助被動的動作突出動作的承受者為了更好的安排句子，用于修辭當(dāng)動作的執(zhí)行者是無生命的事物時(shí)，需用被動語態(tài)用法有些動詞習(xí)慣被動語態(tài)，如born,report,say等用括號內(nèi)所給動詞的適當(dāng)形式填空。1.TheSecondarySchoolEntranceExams_______(hold)inJune.2.Astrangenoise__________(hear)byhismotherlastnight.3.Awideroad_____________(build)betweenthetwovillagesbythosepeoplenextyear.isheldwasheardwillbebuilt1.Lilyismyclassmate.We______eachothersinceshecametoourschool.

A.know

B.knew

C.haveknown

D.willknow

C2.I_____inthecitysinceIleftschool.A.live

B.willlive

C.wasliving

D.havelived

D3.Inthepastfewyears,manyschools______thewaysofdoingmorningexercises.A.change

B.changes

C.willchange

D.havechanged

D考點(diǎn)一：考查表示“能力”的情態(tài)動詞1.—________yourAustralianfriendeatwithchopsticks?—Yes,butshecan’tusethemwell.A.ShouldB.NeedC.CanD.Must2.Theworkistoohardforus.We_______finishitontime.A.can’tB.mustn’tC.shouldn’tD.needn’t情態(tài)動詞——考點(diǎn)

usedto結(jié)構(gòu)usedto意為“過去常常做某事”，指的是過去的習(xí)慣性動作，目的在于與現(xiàn)在形成對照。它的疑問式是：Did＋主語＋usetodosth．否定式是：主語＋didn'tuse．或疑問式：Used＋主語＋tosth．否定式應(yīng)當(dāng)是usednotto.Exercise1.她過去常常周末和朋友閑逛。She_____________withfriendsonweekends.2.他習(xí)慣于每晚睡得很晚。

He____________________________atnight.3.Kenusedtobeafraidofdogs.(改為一般疑問句)______________________________?usedtohangoutisusedtosleepinglate/stayingupDidKenusedtobeafraidofdogsJoe:_____youever_____(take)partinan

environmentalproject?Ken:Yes,Ihave.I_____(help)withaClean-Up

Daylastyear.Itwas_________(consider)

thebiggestclean-upprojectthiscityever

________(have).

Fillintheblankswiththecorrectformsoftheverbsinbrackets.4aHavetakenhelpedconsideredhadhadexercising用所給詞的適當(dāng)形式完成句子1.Allthewildanimalsshould______________(protect)verywell.2.—AreJimandMikeintheclassroom?—No.They____________(play)tennisoverthere.3.Therubbishinthepark__________(clean)upeveryday.4.—Howlong________you_________(work)intheOceanPark?—Since10yearsago.5.Manystudentsusedto_____(be)tiredbecauseofthoseafter-schoolclasses.beprotectedareplayinghave workedbeiscleanedJoe:_____youever_____(take)partinan

environmentalproject?Ken:Yes,Ihave.I_____(help)withaClean-Up

Daylastyear.Itwas_________(consider)

thebiggestclean-upprojectthiscityever

________(have).

Fillintheblankswiththecorrectformsoftheverbsinbrackets.4cHavetakenhelpedconsideredhadhadJoe:Howmanypeople______(take)part?Ken:I_____(think)morethan1,000people_____(come)tohelpout.Joe:That’sfantastic!Iguesseveryoneinthiscity

is_____(try)toimprove

the

environment.Ken:Yes,wecan'taffortto

_____(wait)anylongertotakeaction!tookthinkcametryingwaitExercise一、用所給詞的適當(dāng)形式填空1.Theoldmanused_____(be)ateacher.2.Weshould_____(clean)theroomeveryday.3.Look!Tom____