浙江省杭州市三墩中学九年级英语《9unit31》课件 人教新目标版.ppt

teenagersshouldbeallowedtochoosetheirownclothes unit3 period1 被动语态 定义 表示主语是动作的承受者 构成 助动词be 及物动词的过去分词 助动词有人称 时态和数的变化 含有情态动词的被动语态 情态动词 be 及物动词的过去分词 用法 当我们不知道谁是动作的执行者 或者没有必要指出谁是动作的执行者 或者只强调动作的承受者时 要用被动语态 schoolrules whataretherulesinourschool canyouarrivelateforclass no wecan t studentsarenotallowedtoarrivelateforclass 被动语态bedone studentsshouldnotbeallowedtoarrivelateforclass 带情态动词的被动语态 practice studentsarenotallowedtoruninthehallways studentsshouldnotbeallowedtoruninthehallways 1 don truninthehallways 2 don teatsnacksintheclassroom 3 don tlistentomusicintheclassroomsorthehallways 4 don tfight studentsshouldnotbeallowedtotakemobilephonestoschool agreeordisagree why studentsshouldbeallowedtodohomeworkwithfriends agreeordisagree why studentsshouldnotbeallowedtogooutatnight agreeordisagree why studentsshouldnotbeallowedtotakepart timejobs agreeordisagree why emily sopinions a ithinkteenagersshouldbeallowedtogooutwiththeirfriends b iagree theyareoldenough theycanlookafterthemselveswell gooutwiththeirfriends a idon tthinktwelve year oldsshouldbeallowedtogettheirearspierced b iagree it stoosillytowearearringsintheschool gettheirearspierced a ithinkstudentsshouldbeallowedtodohomeworkwiththeirfriends b idisagree theytalkinsteadofdoinghomework dohomeworkwiththeirfriends 1 annacangotothemallwithjohn 2 annawantstogetherearspierced 3 annaisallowedtochooseherownclothes listenandjudgetrueorfalse t f t listenandcheckwhatkathythinks circle agree disagree or doesn tknow toshowwhatmollythinks itlookscool youngpeopleneedtosleep heneedstospendtimewithfriends heneedstimetodohomework itdoesn tlookclean 4 1 5 2 3 2blistenagain whatarekathy sandmolly sreasons numbertheirreasonsinthecorrectorder 2cpairworkmakealistofthingsteenagersshouldandshouldnotbeallowedtodo discussyourlistwithyourpartner sampledialogue1 a doyouthinkteenagersshouldbeallowedtohavemobilephones b yes it sconvenientforstudentsandtheirparentstocommunicatewitheachother 1 规则动词的过去分词 1 一般情况在动词原形后加 ed watch watched 2 以不发音e结尾的加 d practice practiced 3 以辅音加y结尾的 去y变i加 ed study studied 4 以重读闭音节结尾 末