Unit3TeenagersshouldbeallowedtochoosetheirownclothersSectionA[学习目标]掌握重点单词和短语；license执照;许可证silly愚蠢的；傻的insteadof代替；而不是stayup(notgotobed);不就寝，熬夜2.掌握重点句型;①Teenagersshouldbeallowedtochoosetheirownclothes.②Sixteen-year-oldsshouldnotbeallowedtodohomeworkwithfriends.③Studentsaren’toldenoughtogettheirearspieced.④Ithinkstudentsshouldbeaallowedtodohomeworkwithfriends.⑤Idon’tthinksixteen-year-oldsshouldbeallowedtodrive.⑥-Doyouthinksixteen-year-oldsshouldbeallowedtochoosetheirownclothes?-Yes,Ido./No,Idon’t.⑦—wehavealotofrulesatmyhouse.--Sodowe.⑧I’mallowedtochoosemyownclothes,butI’mnotallowedtogetmyearspiercedyet.3.语法：含情态动词的被动语态。3．通过谈论学校的规章制度树立遵守校规的观念：第一课时（P18-19）[预习]词组英汉互译做兼职工作_______________2.不够认真_________________3.允许某人做某事_____________4.一位十八岁的女孩________________5.stopwearingthatsillyearrings__________________;6.get/haveone’searspierced_________________________________________二．从方框中选择恰当的词或词组完成句子cut,part-time,goout,insteadof,onweekendsInChina,studentsshouldnotbeaallowedtohave______jobs.WeoftengotoCaimingyuanSquarewithfriends________________.Lucyisafraidofthedark,soshedoesn’t______________aloneatnight.Theytalk________doingtheirhomework.Yourhairismuchtoolong.Whynothaveit__________?[导学]allow;vt,允许；准许；allowsth.允许/听任某事发生allowsb.todosth,允许某人干某事，be(not)allowed(todo)sth.(不)被允许（做某事），（属于被动语态）；sballowdoingsth.某人允许干某事eg.Thatteacherallowedtoomuchnoiseintheclassroom.那位老师听任教室里大声吵闹。Noparkingisallowedinthisstreet.这条街不允许停车。Theydon’tallowmetoworkonweekends.她不肯让我在周末工作。instead与insteadofinstead为副词，其后不能按其它的词，通常放在句首或句末，表示前面的事没做，而做了后面的事。insteadof为介词短语其后接名词，介词，动名词等。eg:Youshouldtakemoreexerciseinsteadofworkingindoorsallday.你应该多锻炼，而不是整天在室内工作。Shedidn’tanswer.Instead,sheaskedmeanotherquestion.她没有回答，反而又问了我另一个问题。3.语态是动词的一种形式，用来说明主语和谓语动词之间的关系。英语动词有两种语态，主动语态与被动语态。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词的承受者。一般来说，只有及物动词(eg.allow,see,watch,use,hear,make,invite…)和不及物动词加介词才有被动语态（lookafter,takecareof…）不及物动词和连系动词无被动语态。本单元主要运用含有情态动词的被动语态。其句型如下：肯定句：动作承受者（主语）+情态动词（can,may,must,should…）+be+动词的过去分词+其它。否定句：主语+情态动词+not+be过去分词+其它。一般疑问句：--情态动词+主语+be+动词过去分词+其它？--Yes,主格+情态动词。No,主格+情态动词not(缩写成一词)[自我检测]()1.Students_______slipperswhentheyareatschoolA.don’tallowtowearB.arenotallowedtowearC.arenotallowedtoputonD.arenotallowedwearing()2.Theflowers_____everyday,orthey’lldie.A.mustwaterB.canbewateredC.shouldwaterD.mustbewatered3.Theymustfinishmendingthemachineinthreedays.(改为被动语态)Themachine______________________mendinginthreedays.4.补全句子a.他们讲话而不是做家庭作业。Theytalk_________________homework.b.格林先生将代他去。MrGreenwillgo___________________.c.为什么不改成开聚会呢？Whynothaveaparty_________?[达标训练]一．单项选择（）1.—Maryisonly8yearsold.Idon’tthinkshe_______torideherbikeinthestreet.--Iagreewithyou.Itmaybesodangerous.A.shouldallowB.shouldisallowedC.shouldbeallowedD.sh...
