人教版九年级英语unit3 Teenagers should be allowed to choos

Unit3Teenagersshouldbeallowedtochoosetheirownclothes.Englishisspokenbymanypeople.DaChangjiniswatchedonTVbymanypeople.Theticketsaboutheroesaresoldout.RiceisplantedinSouthChina.Heissaidagoodboy.Grammar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，本单元中反复出现的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.被动语态的构成一般现在时的被动语态为：主＋am/is/are（not）＋过去分词一般过去时的被动语态为：主＋was/were＋过去分词如：Butterismadefrommilk.Thishousewasbuilt100yearsago.Theofficeiscleanedeveryday.Theofficewascleanedyesterday.现在进行时被动语态的构成为主语＋is/am/are+being＋过去分词再如：Mycarisbeingrepairednow.Somenewhousesarebeingbuiltnearthepark.公园附近在建一些房子。现在完成时被动语态的构成为主语＋have/has＋been＋过去分词如：Mykeyhasbeenstolen.Mykeyshavebeenstolen.Iamnotgoingtotheparty,Ihaven’tbeeninvited.含有情态动词的被动语态情态动词＋be＋过去分词Anotehadbetterbelefttohim.Teenagersshouldbeallowedtoweartheirownclothes这里我们列举了几个主要时态，那么其它时态呢？一般将来时主语＋will＋be＋过去分词过去将来时主语＋would/should+be＋过去分词过去进行时主语＋was/were+being＋过去分词过去完成时主语＋had+been+过去分词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）不知道或没有必要说明动作的执行者是谁，不用by＋动作执行者短语Suchbooksarewrittenforchildren.这些书是为儿童写的。Ihaven’tbeentoldaboutit.没有人告诉我这件事（2）强调动作的承受者，这时应用by短语。ThecupwasbrokenbyDavid.（3）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。英语中有“十大动词”的说法，即feel,hear,listen,have,make,let,look,watch,see,notice，这些词在主动句中，其后的动词不定式不加to，但变被动句时必须加to.Theytakegoodcareofmychild.－Mychildistakengoodcareof.他们把我的孩子照顾得很好。Iturnedofftheradio.－Theradiowasturnedoff(byme).附：动词短语的被动语态takecareof－betakencareofcutdown－becutdownlaughat－belaughedatlookafter－belookedafter（4）由情态动词形成的被动语态含有情态动词的句子在变为被动语态时，在情态动词后面加上be动词即可，其句型如下：肯定句：主语＋情态动词（can,may,must）+be+过去分词…否定句：主语＋情态动词＋not+be+过去分词…疑问句：情态动词（Can,May,Must）＋主语＋be＋过去分词＋….如：WeshouldallowteenagerstosurftheInternet.－TeenagersshouldbeallowedtosurftheInternet.Canyouuseit?你会使用它吗？－Canitbeused?填空（完成被动语态填空）1.Theyoftencleantheirclassroomafterschool.（改为被动语态）Theirclassroom_____often______bythemafterschool.2.LiLeigaveTomanewpenlastweek.（同上）Anewpen_________________Tomlastweek.iscleanedwasgivenby3.AlotofpeopleinChinacanspeakEnglishnow.（同上）English________________byalotofpeopleinChinanow.4.IhavelearnedEnglishforabouttwoyears.（同上）English__________________forabouttwoyears.5.Theywillpublishthesestory-booksnextmonth.（同上）Thesestory-books_______________nextmonth.canbespokenhasbeenlearnedwillbepublishedWarmingupSectionA由情态动词形成的被动语态含有情态动词的句子在变为被动语态时，在情态动词后面加上be动词即可，其句型如下：肯定句：主语＋情态动词（can,may,must）+be+过去分词…否定句：主语＋情态动词＋not+be+过去分词…疑问句：情态动词（Can,May,Must）＋主语＋be＋过去分词＋….如：WeshouldallowteenagerstosurftheInternet.－TeenagersshouldbeallowedtosurftheInternet.Canyouuseit?你会使用它吗？－Canitbeused?学校规章制度Whataretherulesatourschool?Canyouarrivelateforclass?No,wecan’t.1)Don’tarrivelateforclass.Don’tbelateforschool.不准上课迟到./上学迟到2.Don’truninthehallways.Canyouruninthehallways?No,wecan’t.不准在走廊里跑步.3)Don’tlistentomusicintheclassroomsorthehallways.不准在教室里或走廊里听音乐.Wecanlistentomusicinthemusicroom.4)Don’tfight.不准打架.5)Don’ttalkinclass.Don’ttalkwitheachotherinclass.不准在上课讲话.彼此之间不准在上课讲话.Stoptalking.6)Don’thavelonghairforboys.男生不准留长发.Don’tsmoke.(Nosmoking)不准吸烟./禁止吸烟!1.Studentsshouldnotbeallowedtotakemobilephonestoschool.Doyouagree?Ordisagree?2.Studentsshouldbeallowedtodohomeworkwithfriends.3.Studentsshouldnotbeallowedtogooutatnight.4.Studentsshouldnotbeallowedtotakepart-timejob.目标语言（TargetLanguage）1.Ithinksixteen-year-oldsshouldbeallowedtodrive.我认为应该允许16岁的孩子开车。2.Idisagree.Ithinksixteenistooyoung.我不同意，我认为16岁这个年纪太年轻了。3.Doyouthinkthirteen-year-oldsshouldbeallowedtohavepart-timejobs?你认为应该允许13岁的孩子们做兼职工作吗？4.No,Idon’t.不，我认为不应该。5.Annaisallowedtowearherownclothes.安娜可以选择自己的衣服。6.Theyarenotseriousenoughatthatage.那个年龄的他们不够稳重。7.－Whatrulesdoyouhaveathome?你家有什么规定吗？－Well,I’mnotallowedtogooutonschoolnights.噢，我在上学的晚上不能外出。Listening(1b:P18)1.AnnacangotothemallwithJohn.2.Annawantstogetherearspierced.3.Annaisallowedtochooseherownclothes.TFTListeningtextWoman:So,whatareyoudoingthisafternoon,Anna?Girl:I’mgoingtothemallwithJohn.Hejustgothisdriver’slicense.Woman:I’msorry.Youcan’tgowithJohn.Idon’tthinksixteen-year-oldsshouldbeallowedtodrive.Girl:ButIhavetogotothemall.Gaby’sgettingherearspiercedandIwanttowatch.Woman:Idon’tthinksixteen-year-oldsshouldbeallowedtogettheirearspierced.Theymightbesorrylater.Girl:Iagree,butit’sfuntowatch.IsitOKifwetakethebus?Woman:Well,Iguessso.Girl:Great!Iwanttobuyanewblouseatthemall,too.Woman:Whatkindareyougoingtobuy?MaybeIshouldgowithyou.Girl:Aw,Mom.I’mnotachild.Ithinkteenagersshouldbeallowedtochoosetheirownclothes.Woman:Well,Ijustwanttobesureyougetsomethingnice.OralPractice(1c:P18)Sampledialogue1:A:Ithinkteenagersshouldbeallowedtogooutwiththeirfriends.B:Iagree.Theyareoldenough.Theycanlookafterthemselveswell.Sampledialogue2:A:Idon’tthinktwelve-year-oldsshouldbeallowedtogettheirearspierced.B:Iagree.It’stoosill