人教新目标版九全英语 Unit13 SectionA GrammarFocus~4c 教学课件

Unit13

Wearetryingtosavetheearth!SectionAGrammarFocus~4c九年级全一册

人教版LearningGoalsWarmingUpGrammarSummaryExercises112345通过本课的学习，学生能够：复习现在进行时/usedto/被动语态/现在完成时/情态动词。LearningGoalsHowmanytenses(时态)havewelearned?Whatarethey?WarmingUp一般现在时、一般过去时、一般将来时现在进行时、过去进行时现在完成时、过去完成时We’retryingtosavetheearth.Theriverusedtobesoclean.

Theairisbadlypolluted.Noscientificstudieshaveshownthatsharkfinsaregoodforhealth.Weshouldhelpsavethesharks.Readthechartandtellwhatgrammarpointswearegoingtoreviewtoday.PresentationPresentprogressiveusedtoPassivevoicePresentperfectModalverbs现在进行时：时态：Let’sreview!

什么时候使用现在进行时？

现在进行时的标志性词语有哪些？现在分词的构成规则有哪些？现在进行时基本结构基本用法标志词be(am/is/are)+动词-ing1.表示现在正在进行或发生的动作。2.表示现阶段或当前一段时间之内

正在进行的动作。now、look、listen、thesedays等现在进行时动词-ing形式的构成a.一般情况下，在动词词尾后加-ing。如：go→goingb.以不发音的e结尾的动词，去掉e加-ing。如：have→havingc.以重读闭音节结尾的动词，末尾只有一个辅音字母，双写这个辅音字母，再加-ing。如：run→running现在进行时①Nowpeoplearetakingactiontosavewildanimals.Let’sjointhem.②Look!Kennyisswimminghappilyinthepool.③Listentomecarefullyplease.Iamtalkingaboutsomethingveryimportant.④Bequiet,please.Thebabyissleeping.Examplesentences现在完成时：现在完成时态的结构是什么？现在完成时态的标志性词汇有哪些？过去分词的构成规则有哪些？现在完成时态的用法有哪些？现在完成时现在完成时基本结构基本用法标志词have/has+过去分词1.表示过去发生或已经完成的动作对现在造成的影响或结果。2.从过去某一时间开始并一直持续到现在且还有可能持续下去的动作。already、yet、ever、never、for+时间段、since+时间点、sofar、inthelast/past...years等过去分词的构成a.一般情况下，在动词后加-ed。如:work→worked。b.在以e结尾的动词后只加-d。如:close→closed。c.以辅音字母加y结尾的动词，应将y改为i再加-ed。如:study→studied。d.以重读闭音节结尾的动词，要双写末尾的辅音字母再加-ed。如:stop→stopped。eg.不规则动词的过去分词:AAA型

putputputAAB型

beatbeatbeatenABA型

becomebecamebecomeABB型

getgotgot/gottenABC型

beginbeganbegun现在完成时

①Hehaskeptthisbookforovertwomonths.Pleaseaskhimtoreturnitsoon.②Wehavelivedheresincemylittlesisterwasborn.Ilikethepeoplehere.③Hehasalreadytriedthistosolvetheproblem,butitdidn’twork.Examplesentences被动语态的构成是什么？一般现在时、一般过去时、一般将来时和情态动词的被动语态的结构分别是什么？语态主动语态和被动语态有什么区别？主动语态和被动语态的区别主动语态表示主语是动作的执行者。被动语态表示主语是动作的承受者，即行为动作的对象。

在含有使役动词(如：make)或感官动词(see、watch、notice、hear等)的主动语态的句子中，这些词后常跟省略to的动词不定式，但是改为被动语态时则要把省去的to还原。Myroomwascleanedbyme.Hewasseentocrosstheroadandentertheshop.Icleanedmyroom.→Isawhimcrosstheroadandenter

theshop.→被动语态的构成被动语态的基本结构：一般现在时的被动语态：一般过去时的被动语态：一般将来时的被动语态：含情态动词的被动语态：助动词be+及物动词的过去分词am/is/are+过去分词was/were+过去分词willbe/isgoingtobe+过去分词情态动词+be+过去分词①Photosandexperiencesaresharedonthemicroblog.②Thevideowassentoutquicklyandwasseenbymanyschoolmates.③Inthefuture,robotswillbeusedbymoreandmorepeople.Examplesentences被动语态InstantTraining1.Thegirls____________(dance)intheclassroom.2.It’s5o’clocknow.Mike___________(have)dinner.3.—________youever________(be)totheUS? —Yes,twice.4.—MayIspeaktoJohn?—Sorry,he_________(go)toNewYork.Hewillbebackintwodays.5.—DoyouknowMr.Whitewell?—Yes.He____________(work)fortheWWFfortwoyears.aredancingishavingbeenhasgonehasworkedHave6.I__________(live)heresince1999.7.—Doyouoftencleanyourclassroom?—Yes.Ourclassroom__________(clean)everyday.8.—DidyougotoJack’sbirthdayparty?—No,I______________(notinvite).9.—Whatisthis?—It’saCD.ThisCD________(use)forlearningEnglish.10.Anewhighwayinmyhometown___________(build)nextmonth.havelivedisusedwasn’tinvitediscleanedwillbebuilt情态动词情态动词情态动词表示说话人对动作的观点，如需要、可能、意愿或怀疑等，不能单独作谓语，情态动词与助动词一样，后面需要接动词原形构成谓语，它们一般没有人称和数的变化(haveto除外)。

常见的情态动词有can,could,may,might,must,haveto,should,shall,would,will,need(1)can/could①

表“能力”（此时could是can的过去式）IcanspeakEnglishwellnowbutIcould’t10yearsago.我现在说英语很好但是十年前我不行。②表“许可”，可表示请求他人许可或许可他人（could表示委婉语气）—CouldIuseyourbike?—Yes,youcan.③表“推测”Wethoughtthestorycouldnotbetrue.Itcan’tbeMr.Li.(2)may/might①表“许可”，可表示请求他人许可或许可他人（might表示委婉语气）Youmaysithereifyouwant.MightIsmokehere?

②表“推测”，可能性推测（might表示委婉语气）Shemaynotlikethisplace.她可能不喜欢这个地方。(3)must/haveto①must表示义务，意为“必须”。在回答must引导的一般疑问句时，肯定回答用must，否定回答用needn’t或don’thaveto。mustn’t表示禁止。—MustIfinishmyhomeworktoday？我必须今天完成作业吗？—Yes,youmust.是的，你必须。(No,youneedn’t./No,youdon’thaveto.不，你不必。)②表“推测”，肯定推测ThebookmustbeLily’sbecausethere’shernameonthecover.这本书一定是莉莉的，因为封面上有她的名字。对比点musthaveto1.表“必须”（主观看法）必须；无时态（客观需要）不得不；多种时态2.疑问句MustI...?Yes,youmust.(一定)No,youneedn’t/youdon’thaveto.(不必)Doyouhavetogotoday?Yes,wedo.Youdon’thavetoworryaboutthat.(3)shall/should①shall用于第一、第三人称,表示征求意见或请求指示用于第二、第三人称表示“命令”“警告”“强制”“允诺”“决心”—ShallIlethimin?(征求意见，请求指示)—Yes,youshall.（允诺）②should表示“应该”，常用来表示劝告、建议,认为“某人应该做某事”或“有义务责任做某事”。Weshouldtakecareoftheold.我们应该照顾好老人。①Kencanclimbuptreeslikeakoala.②Tracycouldrideabicyclewhenshewasfiveyearsold.③Youmustn’tplaywithfire.Itisdangerous.④It’srainingoutside,soIhavetotakeanumbrellawithme.⑤Asastudent,weshouldobeytheschoolrules.⑥

Thelightisonintheoffice.Someonemaybethere.Examplesentences情态动词InstantTrainingA1.—________youpassmeapen?I’dliketowritedownthephonenumber.—Sure.Hereitis.A.Can

B.Need

C.Might

D.Must2.—MayIgotothecinema,Mom?—Certainly,butyou________bebackby11o’clock.A.Can

B.may

C.must

D.needC3.You

_______worryaboutme.It’snothingserious.A.can’t

B.mustn’t

C.needn’t

D.won’t4.—Excuseme.IsthistherightwaytotheSummerPalace?—Sorry,I'mnotsure.Butit______be.A.Might

B.mustn’t

C.can’t

D.must5.Themanintheoffice______beMr.Black,becausehewenthomejust

now.A.mustn’t

B.maynot

C.can’t

D.needn’tCAC1.usedto表示什么意思？后接什么？usedto意为“过去常常做某事”，后接动词原形。2.usedto句型的否定句和一般疑问句的形式是什么？usedto句型的否定句形式：didn’tuseto...usedto句型的一般疑问句形式：Did+主语+useto...?3.usedto和beusedto的区别是什么？usedtodo表示过去常常做某事，而现在往往不做了；beusedtodoing表示习惯于做某事。usedto

Examplesentences①Jamesusedtowakeuplate,butnowhegetsupveryearly.②

DidCherryusetoliveinShanghaiwhenshewasachild?usedtoInstantTrainingusedtohangout1.她过去常常周末和朋友闲逛。She_________________________withfriendsonweekends.2.他习惯于每天晚上睡得很晚。He_________________________________atnight.3.Kenusedtobeafraidofdogs.（改为一般疑问句）_________________________isusedtosleepinglate/stayingupDidKenusetobeafraidofdogs?4a.Fillintheblankswiththecorrectformsoftheverbsinbrackets.Joe:______youever________(take)partinanenvironmentalproject?Ken:

Yes,Ihave.I_______(help)withaClean-UpDaylastyear.Itwas__________(consider)thebiggestclean-upprojectthiscity______ever________(have).Joe:Howmanypeople________(take)part?HavetakenhelpedconsideredhadhadtookPracticeKen:I___________(think)morethan1,000people______(come)tohelpout.Joe:That’sfantastic!Iguesseveryoneinthiscityis______(try)toimprovetheenvironment.Ken:Yes,wecan’taffordto________(wait)anylongertotakeaction!thinkcametryingwait4b.Fillintheblankswiththeappropriatemodalverbsfromthebox.People_________thinkthatbigthings__________________bedonetosavetheearth.Manyforgetthatsavingtheearthbeginswithsmallthings.Forexample,you______________saveelectricitybyturningoff

thelightswhenyouleavearoom.You_______________alsousereusablebagsinsteadofplasticbags.canwouldcouldhavetoshouldmustmay/mightmay/mightshould/haveto/mustcan/could/shouldcan/could/shouldcanwouldcouldhavetoshouldmustmay/mightIthinkit’sagreatideathatyounow_______payfor

plasticbagsinsomestores.Andinsteadofdrivingtoschoolorwork,you_______________rideyourbikeorwalk.Ifit’sfar,you__________takethebus.Allthesesmallthings__________addupandbecomebigthingsthat______________improvetheenvironment.Let’stakeactionnow!havetocan/could/shouldcan/couldcan/could

would/can/could4c.Makealistofthingsthatpeoplecandotohelptheenvironmentanddiscussyourlistwithyourpartner.Ithinkthateveryoneshouldusepublictransportation.Idisagree.It’sdifficultforparentswithyoungchildrentousepublictransportation...ProductionExercises一、单项选择。1．Withdoublereductionpolicy(双减政策),students_____lesshomeworknowsothattheyhaveenoughtimetotakepartinmoreactivities.A．willgive

B．weregiven

C．aregivenD．gave2．—Andy,whatwereyoudoingatthistimeyesterdayafternoon?—I

thefilmThe

Battle

at

Lake

Changjinwithmysister.A．watch