unit 7 section A grammar focus

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

2、arenotallowedtoruninthehallways.SchoolrulesDon’teatintheclassroom.=Studentsarenotallowedtoeatintheclassroom.SchoolrulesDon’tlistentomusicintheclassroom.=Studentsarenotallowedtolistentomusicintheclassroom.SchoolrulesDon’tfightwithothers.=Studentsarenotallowedtofightwithothers.S

3、choolrules=Studentsarenotallowedtocheat.Don’tcheat.SchoolrulesDon’twearlonghair.(boys)=Boysarenotallowedtowearlonghair.Schoolrules=Studentsarenotallowedtosleepinclass.Don’tsleepinclass.Idon’tthinksixteen-year-oldsIagree.Theyaren’tshouldbeallowedtodrive.seriousenough.Doyouthink

4、teenagersshouldbeNo,Idon’tagreewithencouragedtomaketheirownthis.Teenagersaretoodecisions?youngtomaketheirowndecisions.TeenagersshouldnotbeallowedIdisagree.Theycanlearntohavepart-timejobs.alotfromworking.DoyouthinkwemaybeallowedIfyoudon’tuseaflash,totakesomephotosifwedon’ttheni

5、tmaybeOK.useaflash?GrammarFocusLanguagepointsDoyouthinkteenagersshouldbeencouragedtomaketheirowndecisions?你认为应该鼓励青少年自己做决定吗？makeone’sowndecisions意为“自己做决定”，相当于makedecisionsforoneself。例：Ijustwanttomakemyowndecision.我只想能够自己做决定。◆温故◆在英语中，动词有两种语态，即主动语态和被动语态。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

6、作的承受者。在前面两个单元我们已经学习了一般现在时的被动语态和一般过去时的被动语态，它们的结构为：am/are/is+及物动词的过去分词,were/was+及物动词的过去分词。含有情态动词的被动语态◆知新◆本单元我们主要了解含有情态动词的被动语态。它的结构是什么呢？1.肯定式为主语+should+动词原形+其他should+动词原形表示应该做某事以及承担的责任或义务（常用于纠正别人）。e.g.Heshouldhavebeenmorecareful.他应该更小心一点才是。Youshouldworkharderandpasstheexam.你

7、应该更加努力，并通过考试。2.should的否定式为shouldnot,简略形式为shouldn’t。e.g.Sheshouldn’tbeworkinglikethat.Sheisstillsoweak.她不应当那样干。她身体还很虚弱。Youshouldn’tdrinkanddrive.你不应该酒后驾车。3.should的疑问句直接将should置于主语前。e.g.ShouldIcallhimandapologize?我是不是应该打电话向他道歉？情态动词用法（以should为例）结构:肯定：情态动词+be+动词的过去分词否定：情态动

8、词+not+be+动词的过去分词一般疑问句：情态动词+主语+be+动词的过去分词？特殊疑问句：疑问词+情态动词+主语+be