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Unit 7Teenagers should be allowed to choose their own clothes.SectionA 1a-2c公主岭四中公主岭四中姜丽侠姜丽侠What are the rules in our school?What do we have to do in our school?What cant we do in our school?Ilikeplayingbasketballafterclass.Ishouldplaybasketballafterclass.Youshouldbeallowedtoplaybasketballafterclass.Teenagers play ping-pong ball.should be allowed to I think teenagers should be allowed to playping-pongball.Do you agree or disagree?Teenagers watch TV.should be allowed to Do you agree or disagree?Teenagers should _ get their ears pierced.not be allowed toI dont think teenagers should be allowed to get their ears pierced.getherearspierced.pis刺穿 earrings iriz Studentsshould_.dyethehairnotbeallowedtosilly sili笨的I dont think students should be allowed to dye the hair.Students should drive.not be allowed toI dont think students should be allowed to drive.语态分为两种，即主动语态和被动语态。语态分为两种，即主动语态和被动语态。主动语态主动语态表示表示主语主语是动作的是动作的发出者发出者，而，而被动语态被动语态表示表示主语主语是动作的是动作的承受者承受者。bebe+及物动词的及物动词的过去分词过去分词。bebe有人称、时态和数的变化。有人称、时态和数的变化。被动语态被动语态把下列句子改成被动语态把下列句子改成被动语态1.Theyallowustohavepart-timejobs.2._.2.TheteacheraskedAnnatofinishthepicture._.3.PeopleintheUKspeakEnglish._.4.Wemustsendthepostcardatonce._.Weareallowedtohavepart-timejobsAnnawasaskedtofinishthepictureEnglishisspokenintheUK.Thepostcardmustbesentatonce.5.Theoldcathaseatenthefish._.6.Icantfindthewatchanywhere._.7.Whenwillyouworkoutthemathproblem?_.8.Wherehaveyouputmybackpack?_.Whenwillthemathproblembeworkedout?Wherehasmybackpackbeenput?Thewatchcantbefoundanywhere.Thefishhasbeeneaten(bytheoldcat).1.David broke the cup.The cup was broken by David.2.A thief has stolen my keys.My keys have been stolen.3.They can take good care of my child.My child can be taken good care of.4.They will not clean the office.The office will not be cleaned.5.They havent told me about it.I havent been told about it.6.The workers are repairing my car now.My car is being repaired now.7.He gave me a book.I was given a book.A book was given to me.8.I saw him cleaning the room.He was seen cleaning the room.1.AnnacangotothemallwithJohn.TF1.AnnacangotothemallwithJohn.TF2.Annawantstogetherearspierced.TF2.Annawantstogetherearspierced.TF3.Annaisallowedtochooseherown3.Annaisallowedtochooseherownclothes.TFclothes.TFListenandcircle“T”or“F”.1bA:Ithink/dontthinkteenagersshouldbeallowedtogooutwiththeirfriends.B:Iagree/disagree.Theyareoldenough.Theycanlookafterthemselveswell.Talkabouttherules.toowildnotseriousenoughtooyoungnotoldenoughtoosillynotcalmenough1CListenandcheckwhatKathythinks.Youmaycircle“Agree”,“Disagree”,or“Doesntknow”toshowwhatMollythinks.KathyMolly_1.Sixteen-year-oldsshouldnotbeallowedworkatnight.AgreesDisagreesDoesntknow_2.Larryshouldntworkeverynight.AgreesDisagreesDoesntknow_3.Heshouldcuthishair.AgreesDisagreesDoesntknow_4.Heshouldstopwearingthatsillyearring.AgreesDisagreesDoesntknow_5.Hedoesntseemtohavemanyfriends.AgreesDisagreesDoesntknow_6.Heshouldntworkonweekends.AgreesDisagreesDoesntknow 2a It looks cool.Young people need to sleep.He needs to spend time with friends.He needs time to do homework.It doesnt look clean.4 1 5 2 32b Listening WhatareKathysandMollysreasons?Numbertheirreasonsinthecorrectorder.A:Doyouthinkteenagersshouldbeallowedtohavemobilephones?B:Yes.Itsconvenientforstudentsandtheirparentstocommunicatewitheachother.B:No,Idontthinkso.Perhapsstudentspaymoreattentiontoshortmessagesthantotheirstudies.Makealistofthingsteenagersshouldandshouldnotbeallowedtodo.Discussyourlistwithyourpartner.WhatteenagersshouldbeallowedtodoWhatteenagersshouldnotbeallowedtodo2C1.“语态语态”表示表示主语主语和和谓语动词谓语动词之间的关系。英语之间的关系。英语中有中有“两态两态”的说法，即的说法，即主动语态主动语态和和被动语态被动语态，本，本单元中反复出现的单元中反复出现的shouldbeallowed就是一个含有就是一个含有情态动词（情态动词（should）的被动语态。的被动语态。主语是动作的发出者为主语是动作的发出者为主动语态主动语态主语是动作的接受者为主语是动作的接受者为被动语态被动语态只有及物动词才有被动语态。只有及物动词才有被动语态。WespeakEnglish.Englishisspokenbyus.2.被动语态的构成被动语态的构成 一般现在时的被动语态为：一般现在时的被动语态为：主主am/is/are（not）过去分词过去分词 Butter is made from milk.The office is cleaned every day.一般过去时的被动语态为：一般过去时的被动语态为：This house was built 100 years ago.The office was cleaned yesterday主主was/were 过去分词过去分词情态动词情态动词be过去分词过去分词 Teenagers should be allowed to wear their own clothes （1）不知道或没有必要说明动作的执行者是谁，）不知道或没有必要说明动作的执行者是谁，不用不用by动作执行者短语动作执行者短语 Such books are written for children.这些书是为儿童写的。这些书是为儿童写的。I havent been told about it.没有人告诉我这件事没有人告诉我这件事3.被动语态的用法：被动语态的用法：（2）强调动作的承受者，这时应用）强调动作的承受者，这时应用by短语。短语。The cup was broken by David.（3）作客观说明时，常采用一种被动语态句型）作客观说明时，常采用一种被动语态句型 Its/was said/believed/reported/+that Its reported that about three hundred people were killed in this earthquake.据报道，这次地震中大约有三百人死亡。据报道，这次地震中大约有三百人死亡。Goodbye
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