Unit3Teenagersshouldbeallowedtochoosetheirownclothes.I.ProgramsfortheUnit1.TeachingGoals(1)Inthisunit,studentslearntotalkaboutwhattheyareallowedtodo.(2)Inthisunit,studentslearntoagreeanddisagree.(3)Inthisunit,studentslearnthepassivevoice.2.ImportantwordsandexpressionsAllow,pierce,silly,stayup,drive,driver’slicense,Doyouthink…?Iagree.Idisagree.Idon’tagree.3.TargetLanguageIthinksixteen-year-oldsshouldbeallowedtodrive.Idisagree.Ithinksixteenistooyoung.Doyouthinkthirteen-year-oldsshouldbeallowedtohavepart-timejob?No,Idon’t.4.TeachingDifficultyThePassiveVoiceSodoI.II.TeachingTimeFourperiods重点词汇：part-timejobs兼职工作seemto好像gettheirearspierced穿耳孔choseone’sownclothes选自己的衣服sodowe我们也一样gettoclasslate.上课迟到failatest考试不及格bestrictwith对…要求严格theotherday前几天gettodoingsth着手做某事looksmart看起来整洁concentrateon关注…agoodwaytodo是做…的好方法It’sagoodideaforsbtodo对某人来说是…的好主意getnoisy变得嘈杂atpresent目前haveanopportunitytodosth.有做…的机会havenoopportunitytodo没机会做…beagoodexperienceforsb.对…来说是很有意义的经历taketimetodothings花费时间做事情besleepy睏afteralongweekofclasses上完一周课之后haveFridayafternoonsoff周五下午放假语法内容：一.被动语态1.“语态”表示主语和谓语动词之间的关系。英语中有“两态”的说法，即主动语态和被动语态，本元中反复出现的shouldbeallowed就是一个含有情态动词（should）的被动语态。先看几个基本概念：主语是动作的发出者为主动语态主语是动作的接受者为被动语态只有及物动词才有被动语态。2.被动语态的构成be+Vpp被动语态的时态是由be的时态决定的，be是什么时态，全句就是什么时态，be动词后面的过去分词不变。归纳：肯定句：主语＋be+过去分词＋（by~）否定句：主语＋benot＋过去分词＋（by~）一般疑问句：Be＋主语＋过去分词＋（by~）特殊疑问句：疑问词＋be＋主语＋过去分词＋（by~）3.被动语态的用法：（1）不知道谁是动作的执行者（2）没有必要说明动作的执行者是谁，Suchbooksarewrittenforchildren.（3）需要强调动作的承受者，这时应用by短语。ThecupwasbrokenbyDavid.作客观说明时，常采用一种被动语态句型It’s/wassaid/believed/reported/+that…It’sreportedthataboutthreehundredpeoplewerekilledinthisearthquake.据报道，这次地震中大约有三百人死亡。4.主动语态变为被动语态把主动语态的句子变为被动语态的方法是：（1）把原句中的宾语变为主语（2）动词改为被动形式，即be+过去分词（3）原来的主语，如果需要的话，放在by后面，如果没必要，可省略。附：动词短语的被动语态takecareof－betakencareofcutdown－becutdownlaughat－belaughedatlookafter－belookedafter下列这些短语本身即是被动语态的形式，不需再加－bybecoveredwith…用…覆盖着beinterestedin…对…感兴趣besurprisedat…对…感到惊奇bemadeof（from）用…制造的Period1SectionA1a——2cTeachingAimsandDemands1.KnowledgeandAbilityObjects(1).Keyvocabulary:pierce,license,silly,earring,insteadof(2).Keystructures:Ithinkstudentsshouldbeallowedtodohomeworkwithfriends.Idisagree.Theytalkinsteadofdoinghomework.Sixteen-year-oldsshouldnotbeallowedtodrive.Iagree.Theyaren’tseriousenoughatthatage.Doyouthinksixteen-year-oldsshouldbeallowedtoworkatnight?No,Idon’t.2.TeachingDifficultyTomasterthestructure:should+beallowedtodosth3.TeachingAidsAtaperecorderSomepicturesTeachingProcedures展示学习目标：1.Masterthenewwordsandphrases:license,silly,insteadof,stayup.2.Masterthetargetlanguage:Ithinkstudentsshouldbeallowedtodohomeworkwithfriends.Idisagree.Theytalkinsteadofdoinghomework.Sixteen-year-oldsshouldnotbeallowedtodrive.Iagree.Theyaren’tseriousenoughatth...
