九年级英语unit7,Section A Grammar focus-4c课件

SectionAGrammarFocus-4cWhenIwasatinybabycryingallnight,mymomsangtomeandstayedbymyside.WhenIwastiredandhungry,shegavemefoodandwarmarmstosleepin.WhenIwastworunningthroughthefield,shemadesureIwassafeandkeptmefromdanger.WhenIfellandhurtmyself,shegavemeahugandliftedmeup.WhenIwassevencoughingbadly,shesaidnoice-creamforme.ButItalkedbackloudly,“Ishouldbeallowedtoeatsome!Giveittomenow!”WhenIwasninewatchingscarymovies,shesaidit’dgivemeawfuldreams.ButIshoutedbackangrily,“Ishouldbeallowedtowatchit!I’mnotababy!”WhenIwasateengoingoutwithfriends,shesaid,“Pleasebebackbyten!”ButItalkedbackagain—“Ishouldnotbetoldwhattodo!I’mseventeennow!”NowI’manadult,thinkingbacktothosetimes.Icoughedfordaysaftereatingthatice-creamAndhadscarydreamsafterwatchingthatfilm.Iwaslateforschoolfromstayingoutpastten.Iregrettalkingback,notlisteningtoMom.Momknowsbest,andformeshewantedonlythebest!cryallnightstaybyone’ssidesleepinwarmarmsrunthroughthefieldmakesurekeepsb.fromdangergivesb.ahugliftuptalkback整夜哭待在某人身边睡在温暖的臂弯里穿过田野确定；确保使某人远离危险拥抱某人举起，提起回嘴；顶嘴Translatethephrases.watchscarymoviesgivesb.awfuldreamsbebackbytenthinkbacktothosetimescoughfordayshavescarydreamsbelateforschoolstayoutregretdoingsth.看恐怖电影带给某人恶梦在10点前回来回想那些时光咳嗽好几天做可怕的梦上学迟到待在外面；不回家后悔做过某事Talkwithyourclassmatesaboutyourschoolrulesbyusing“studentsarenotallowedto…”.SchoolrulesDon’tarrivelateforschool.=Studentsarenotallowedtoarrivelateforschool.Don’truninthehallways.Schoolrules=Studentsarenotallowedtoruninthehallways.SchoolrulesDon’teatintheclassroom.=Studentsarenotallowedtoeatintheclassroom.SchoolrulesDon’tlistentomusicintheclassroom.=Studentsarenotallowedtolistentomusicintheclassroom.SchoolrulesDon’tfightwithothers.=Studentsarenotallowedtofightwithothers.Schoolrules=Studentsarenotallowedtocheat.Don’tcheat.Schoolrules=Studentsarenotallowedtosleepinclass.Don’tsleepinclass.Ithinkstudentsshouldbeallowedtodohomeworkwithfriends.Sixteen-year-oldsshouldnotbeallowedtodrive.Doyouthinksixteen-year-oldsshouldbeallowedtochoosetheirownclothes?Lookatthesesentences.Idon’tthinksixteen-year-oldsIagree.Theyaren’tshouldbeallowedtodrive.seriousenough.DoyouthinkteenagersshouldbeNo,Idon’tagreewithencouragedtomaketheirownthis.Teenagersaretoodecisions?youngtomaketheirowndecisions.TeenagersshouldnotbeallowedIdisagree.Theycanlearntohavepart-timejobs.alotfromworking.DoyouthinkwemaybeallowedIfyoudon’tuseaflash,totakesomephotosifwedon’tthenitmaybeOK.useaflash?GrammarFocus含情态动词的被动语态肯定句:主语+情态动词+be+动词过去分词.否定句:主语+情态动词+not+be+动词过去分词.疑问句:情态动词+主语+be+动词过去分词?(一)将主动语态的宾语变成被动语态的主语。(二)将含情态动词的主动句式变成被动句式，即：“情态动词+动词原形”变成“情态动词+be+过去分词”，然后再在其后加“by+主动句中的主语(人称代词用宾格)”。by短语也可省略。请看下列各句：转变方法Youshouldfinishyourhomeworkfirst.Yourhomeworkshouldbefinished(byyou)first.Youcantakethismagazinehome.Thismagazinecanbetakenhome(byyou).含情态动词的疑问句、否定句的变化均需借助于情态动词完成。1.一般疑问句：直接将被动语态的陈述句中的情态动词提前。Mustthistaskbefinishedatonce?这项任务必须立即完成吗？句式变换注意：含情态动词的被动语态的一般疑问句的回答，应保留原情态动词，但must表“必须”时，其否定回答应用needn’t；need表“必要”时，其肯定回答应用must。如：---Mustmyexercisebookbehandedinnow?我的练习本必须现在上交吗？---Yes,itmust.是的，必须现在上交。（No,itneedn’t.不，不必现在上交。）---Needhebeoperatedonatonce?他必须立即手术吗？---Yes,hemust.是的，他必须。（No,heneedn't.不，他不必。）2.特殊疑问句：由特殊疑问词加上被动语态的一般疑问句构成。Whenmustthistaskbefinished?这项任务必须在什么时候完成？3.否定句：在情态动词后面加上not或never即可，但must表必要时否定式为needn't。Thistaskneedn'tbefinishedatonce.这项任务没必要立即完成。4.反意疑问句：借助情态动词构成附加疑问部分。如：Thisbridgecanbebuiltnextyear,can'tit?这座桥明年能建成，是吗？Teenagersshouldbeallowedtochoosetheirownclothes.应该允许青少年选择他们自己的服装。Studentsshouldnotbeallowedtohavepart-timejobs.不应该允许学生们做兼职工作。Canthesebooksbetakenoutofthereadingroom?可以把这些书带出阅览室吗？Whenmusttheworkbefinished?这些工作必须什么时候完成？4aRewritethesentencesaccordingtotheexample.1.Youmustcleanyourbedroomeveryday.Yourbedroommustbecleanedeveryday.2.Parentsshouldencourageteenagerstodosocialworkfortheircommunity.Teenagers__________________________________________________________.shouldbeencouragedtodosocialworkfortheircommunit3.CanLucydoherhomeworktomorrowinstead?Can__________________________________________________________________?Lucy’shomeworkbedonebyhertomorrowinstead4.DoyouthinkwemustkeepteenagersawayfromtheInternet?Doyouthinkteenagers_________________________________________?mustbekeptawayfromtheInternet5.Parentsshouldgiveteenagerschancestomaketheirowndecisions.Teenagers_____________________________________________________.shouldbegivenchancestomaketheirowndecisions4bFillintheblankswiththecorrectformsofthewordsinbrackets.Shouldteenagers__________(ask)tomoveoutwhentheystartworking?InmanyWesterncountries,teenagers____________(allow)tomoveoutateighteen.Theirparentsbelievethattheyshould____________(educate)totakecareofthemselvesfromayoungage.Thisway,whenthey_______(start)workingtheycanmanagetheirownlives.However,inmostAsianbeaskedareallowedbeeducatedstartsocieties,itisnotcommonforteenagersto________(move)out.Chineseparentsbelievethatitisbetterforchildrentolivewithparentswhocan_____(take)careofthem.Buttheyoungshouldthenlookaftertheirparentsastheygetolder.ThatiswhymanyChineseadults________(continue)tolivewiththeirparents.movetakecontinue4cYouandyourfriendarestartingan