Unit+13+Section+A+Grammar+Focus-4c+課件 【 備課精研+高效課堂 】 人教版九年級英語全冊

Unit13Wearetryingtosavetheearth.SectionAGrammarFocus-4cRevision1.不同種類的污染2.河底3.把垃圾扔到河里4.在……中起作用5.在中國南部6.對……有害7.在……頂部8.海洋生態(tài)系統(tǒng)differentkindsofpollutionthebottomoftheriverthrowrubbishintotheriverplayapartininsouthernChinabeharmfultoatthetopof…theocean’secosystemCheckifyouknowthesephrases.Payattentiontothesentences.1.We’re

tryingtosavetheearth.2.Theriverusedtobesoclean.3.Theairisbadlypolluted.4.Noscientificstudieshaveshownthatsharkfinsaregoodforhealth.5.Weshouldhelpsavethesharks.PresentprogressiveusedtoPassivevoicePresentperfectGrammarFocusModalverbsTheyareplayingbasketball.Nancyisworkingonanewbookaboutstoriesinschools.Whyareyoualways

cominglateforclass?正在發(fā)生目前一段時間內正在進行含說話者的強烈情感現(xiàn)在進行時現(xiàn)在進行時:Presentprogressive結構:be(am/is/are)+v.-ing標志詞：Look,Listen,now,rightnow…e.g.

Look!Theboyiscrying.定義:表示說話時(瞬間)正在進行的動作,也表示目前或現(xiàn)階段正在進行的動作?；蛘f話者的強烈情感。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.

表示習慣于做某事e.g.Iusedtogetupatsixo’clock.Joeisusedtodrinkingacupofcoffeeeverymorning.usedtodo與beusedtodoingMygrandfatherbuiltthishousein1930.Thishousewasbuilt(bymygrandfather)in1930.Passivevoicebe+V-ed主謂賓主動語態(tài)表示主語是動作的執(zhí)行者,被動語態(tài)表示主語是動作的承受者。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)。結構：be+過去分詞e.g.Anewschoolwasbuiltlastyear.Ourclassroomiscleanedeveryday.ThefirstsectionofNewCollegeEnglishisdesignedforspeakingpracticeand

isbasedonpicturesandtopics.

Thesecomputers

weremade

inourowncountrylastyear.Shallwe

beasked

toattendtheopeningceremony?

①一般現(xiàn)在時的被動語態(tài)：am/is/are+V-ed

②一般過去時的被動語態(tài)：was/were+V-ed③一般將來時的被動語態(tài)：will/shall+be+V-ed1)Thedish

tastes

delicious.

2)Thetheory

proved

rightatlast.3)Thebookissointerestingthatit

sellswell.4)Thepenwriteswell.不可以變成被動語態(tài)的情況我的車需要修理。

Mycarneedsrepairing.

(=toberepaired).3.通常只有及物動詞（組）才有被動語態(tài),不及物動詞沒有。戰(zhàn)爭爆發(fā)了。Thewarbrokeout.但不能說：Thewarwasbrokenout.2.need做實意動詞時，need+V-ing主動形式表示被動意義。1.某些感官動詞加形容詞及少數其他的動詞與一些副詞連用表示被動意義。smell,taste,prove,sell,etc.Lily,cleanyourteethplease.Mum,Ihave

already

cleanedthem.futurepresentpastcleanedteeth現(xiàn)在完成時表示動作發(fā)生在過去，并對現(xiàn)在有影響。結構:has/have+過去分詞標志詞：already,yet,ever,never,since,for…e.g.Ihaven’tfinishedmyhomeworkyet.定義：表示動作已經完成,但對現(xiàn)在造成影響;或者表示從過去某一時間開始一直延續(xù)到現(xiàn)在并還可能持續(xù)下去的動作。

現(xiàn)在完成時:Presentperfect4aFillintheblankswiththecorrectformsoftheverbsinbrackets.Joe:_____youever______(take)partinanenvironmentalproject?Eric:Yes,Ihave.I______(help)withaClean-UpDaylastyear.Itwas__________(consider)thebiggestclean-upprojectthiscity____ever____(have).Joe:Howmanypeople____(take)part?Eric:I_____(think)morethan1,000people______(come)tohelpout.Joe:That’sfantastic!Iguesseveryoneinthiscityis______(try)toimprovetheenvironment.Eric:Yes,wecan’taffordto____(wait)anylongertotakeaction!Havetakenhelpedconsideredhadhadtookthinkcametryingwait4bFillintheblankswiththeappropriatemodalverbsfromthebox.People__________thinkthatbigthings_____________bedonetosavetheearth.Manyforgetthatsavingtheearthbeginswithsmallthings.Forexample,you________________saveelectricitybyturningoffthelightswhenyouleavearoom.You________________alsousereusablebagsinsteadofplasticbags.Ithinkit’sagreatideathatyounow______payforplasticbagsinsomestores.Andinsteadofdrivingtoschoolorwork,you________________rideyourbikeorwalk.Ifit’sfar,you_________takethebus.Allthesesmallthings__________addupandbecomebigthingsthat_______________improvetheenvironment.Let’stakeactionnow!may/mightmust/havetocanwouldcouldhavetoshouldmustmay/mightcan/could/shouldcould/can/shouldhavetocan/should/couldcan/couldcan/couldwould/can/couldWhatafinedaytoday!Look!Whataretheydoing?Exercise1.Paul,I’mbusycooking.Canyougivemeahand?—Justaminute.I___mye-mail.A.amchecking

B.willcheck

C.havechecked

D.waschecking

2.Don’ttakethedictionaryaway,I_____it.A.use

B.used

C.amusing

D.haveused

ACTranslation.1.她過去常常周末和朋友閑逛。

Sheusedtohangoutwithfriendsonweekends.2.他習慣晚睡。

Heisusedtostayingup.ExerciseTranslatethesentencesbyusingPassivevoice.1.剛才一些老年人參觀了博物館。2.工人們使用不同種類的機器工作。Themuseumwasvisitedbysomeoldpeoplejustnow.Differentkindsofmachinesareusedtoworkbytheworkers.ExerciseThemobilephone______in1973.

A.invents

B.isinvented

C.invented

D.wasinvented

D2.Let’swaitandseewhetherbooks_____bytheInternetinthefuture.A.replace

B.replaced

C.willbereplaced

D.werereplacedC3.—Whyareyouleavingyourjob?—Ican’tstanditanylonger.I_____always_____toworkovertime.A.am;asking

B.am;asked

C.was;asking

D.was;askedBCompletethefollowingsentences.I_________(be)inBeijingfortwoyears.2.I_____never_____(hear)ofthatmanbefore.3.Tom__________(work)theresincetwoyearsago.havebeenhaveheardhasworkedExercise4.Thetwins___________(wash)theclothesforanhour.5.He_________(play)basketballsincethreeyearsago.6.Howlong____Sally_____(sing)yet?havewashedhasplayedhassung1.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情態(tài)動詞用來表示能力、應該、請求等,后接動詞原形。1.

情態(tài)動詞本身有一定的詞義,表示說話人的情緒、態(tài)度或語氣,但不能單獨作謂語,只能與其他動詞構成謂語。常見的有:can(could),may(might),must,need,shall(should),will(would)等。情態(tài)動詞2.

情態(tài)動詞無人稱和數的變化,后接動詞原形。否定式是在情態(tài)動詞后面加not。個別情態(tài)動詞有過去式形式,可用來表達更加客氣、委婉的語氣。

e.g.Kencanclimbupthetresslikeakoala.Tracycouldrideabicyclewhenshewasfiveyearsold.Youmustn’tplaywithfire.Itisdangerous.Translation.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.她一定知道這個問題的答案。ExerciseWecan’teatintheclassroom.

Youmustfinishyourhomeworkfirst.Hecan’tbeathomenow.

Shemustknowtheanswertothisquestion.1.—_____Iparkmycarhereforawhile?—No,youmustn’t.Doyouseethesign“NOPARKING”?

A.Would

B.May

C.Must

D.Should

B2.—MayItakethedogwithme,sir?—______.Petsarenotallowedtoenterthehall.A.Yes,youmay

B.No,youmustn’tC.Yes,youcanD.No,youneedn’t

B3.—Idon’tcarewhatpeoplethink.—Well,you_____.You’renotaloneinthisworld.

A.can

B.may

C.should

D.willC4.Ihavetraveledalot.I_____speakfourlanguages.

A.can

B.may

C.must

D.needA4cMakealistofthingsthatpeoplecandotohelptheenvironmentanddiscussyourlistwithyourpartner.usepublictransportation(n.交通運輸);turnoffthelightswhenyouleavearoom;usereusablebagsinsteadofplasticbags;rideyourbikeorwalktoschoolorwork;stopusingpapernapkins(n.餐巾紙);recyclebooksandpaper…DiscussionIthinkthateveryoneshouldusepublictransportation.Idisagree.It’sdifficultforparentswithyoungchildrentousepublictransportation…1.Wecan’tafford

towaitanylongertotakeaction!

affordv.

承擔得起;買得起；提供,給予常與can,beableto連用

affordsth.

買得起/承受得起某物

affordtodosth.

有能力做某事/負擔得起做某事e.g.Canyouaffordthemobilephone?Wecan’tafford

topaysuchaprice.afford&buyafford側重“有經濟能力買”，而buy則側重“購買(這一行為)”。表示“我買不起……”可以說Ican’tafford...，但不能說Ican’tbuy...。用afford或buy的適當形式填空。1)Theycan’t_______tosendtheirchildrentocollege.2)Canyou_______anewcar?3)Helen_______somefruitonherwayhomeyesterday.affordaffordbuy2.…saveelectricitybyturningoffthelightswhenyouleavearoom.

turnoff關掉

e.g.睡覺前請關掉電視。(翻譯)Please

turn

thetelevisionoff

beforeyougotobed.turnon

打開,發(fā)動turnaround

轉身turnup

調高(音量)turndown

調低;拒絕turninto

變成;進入turnover

移交拓展:turn相關短語六種時態(tài)時態(tài)一般現(xiàn)在時一般過去時現(xiàn)在進行時過去進行時一般將來時現(xiàn)在完成時用法表示經常性發(fā)生的動作、習慣性動作或客觀真理、科學事實等。表示過去某個時間發(fā)生的動作或存在的狀態(tài)。表示現(xiàn)在或現(xiàn)階段正在進行或發(fā)生的動作。表示過去某時正在進行的動作或存在的狀態(tài)。表示將來某個時間要發(fā)生的動作或存在的狀態(tài)。表示過去發(fā)生或者未發(fā)生的事對現(xiàn)在造成的影響或結果。構成方式1.動詞be(am/is/are)+表語