英语人教版九年级全册Grammer focus.ppt

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1、Unit7Teenagersshouldbeallowedtochoosetheirownclothes.SectionAGrammarFocusReviewTalkwithyourclassmatesaboutyourschoolrulesbyusing“studentsarenotallowedto…”.SchoolrulesDon’tarrivelateforschool.=Studentsarenotallowedtoarrivelateforschool.Don’truninthehallways.Schoolrul

2、es=Studentsarenotallowedtoruninthehallways.SchoolrulesDon’teatintheclassroom.=Studentsarenotallowedtoeatintheclassroom.SchoolrulesDon’tlistentomusicintheclassroom.=Studentsarenotallowedtolistentomusicintheclassroom.SchoolrulesDon’tfightwithothers.=Studentsarenotallo

3、wedtofightwithothers.Schoolrules=Studentsarenotallowedtocheat.Don’tcheat.SchoolrulesDon’twearlonghair.(boys)=Boysarenotallowedtowearlonghair.Schoolrules=Studentsarenotallowedtosleepinclass.Don’tsleepinclass.Idon’tthinksixteen-year-oldsIagree.Theyaren’tshouldbeallowe

4、dtodrive.seriousenough.DoyouthinkteenagersshouldbeNo,Idon’tagreewithencouragedtomaketheirownthis.Teenagersaretoodecisions?youngtomaketheirowndecisions.TeenagersshouldnotbeallowedIdisagree.Theycanlearntohavepart-timejobs.alotfromworking.DoyouthinkwemaybeallowedIfyoud

5、on’tuseaflash,totakesomephotosifwedon’tthenitmaybeOK.useaflash?GrammarFocusReview一般现在时的被动语态在英语中，动词有两种语态，即主动语态和被动语态。被动语态的基本结构是“助动词be+及物动词的过去分词”，其中助动词be有人称、数和时态的变化,其变化规则与be作为连系动完全一样。1.一般现在时被动语态的各种句式结构助记：被动不离“be”“p.p.”,“p.p.”前面助动be。主谓一致莫忘记，am,is,are现在时。2.一般现在时被动语态的基本用法

6、3.主动语态变为被动语态的方法第一步:将主动语态的宾语改为被动语态的主语；第二步:将主动语态的谓语改为“be+及物动词的过去分词”结构；第三步:将主动语态的主语改为介词by的宾语，放在谓语之后(有时可省略)。如图示：They(主语）grow(谓语）tea(宾语）inthesouth-eastofChina.被动语态:主动语态:Tea(主语）isgrown(谓语）bytheminthesouth-eastofChina.含有情态动词的被动语态含有情态动词的主动句变为被动句时，谓语动词部分改为“情态动词+be+及物动词的过去分词”

7、。WecanwriteLetterscanbewrittenlettersinEnglish.inEnglishbyus.改为被动语态点拨4aRewritethesentencesaccordingtotheexample.1.Youmustcleanyourbedroomeveryday.Yourbedroommustbecleanedeveryday.2.Parentsshouldencourageteenagerstodosocialworkfortheircommunity.Teenagers_____________

8、_____________________________________________.shouldbeencouragedtodosocialworkfortheircommunit3.CanLucydoherhomeworktomorrowinstead?Can___