Unit 3 Teenagers should be allowed to choose their own clothes.Section A Part 1: Teaching design Structures :should be allowed to doTarget language : I think students should be allowed to do homework with friends. I disagree. They talk instead of doing homework. Sixteen-year-olds should not be allowed to drive. I agree. They arent serious enough at that age. Do you think sixteen-year-olds should be allowed to work at night? No, I dont.Vocabulary : 1 sixteen-year-olds 2,part-time job 3 their own clothes4 serious enough 5 get ones ears pierced 6 spend tinme with sb 7 so do we8 on school nights 9 Im not allowed to go out on school nights 10 allow sb to do / allow doing sth Important sentences: 1.I think sixteen-year-olds should be allowed to drive.2.Do you think thirteen-year-olds should be allowed to have part-time jobs?Goals 1，To train students listening, speaking, reading and writing skills.2，To train students communicative competence.ProceduresWarming up by learning “be allowed to do ”Hi, everyone. Today were going to study Unit 3. Its title is Teenagers should be allowed to choose their own clothes. In the title we find a phrase “be allowed to”. What does it mean? How is it used in English?Presentation Step 1 Show the picture of power point to help students understand “agree” and “disagree”. to drive a carDo you agree or disagree teenagers to get their ears pierced to use mbile phones at school Step 2 Listen. 1bThis activity gives students practice in understanding the target language in spoken conversation.Read the instructions to the class. Say,You will hear a conversation betweenAnna and her mother. They dont agree with everything. Get students to read the three sentences in the box silently.Play the reading for the first time.Students only listen.Play the recording a second time. This time students listen and circle T or F.Check the answers.Answers1. T 2, F 3. TTapescriptWoman: So, what are you doing this afternoon, Anna?Girl: Im going to the mall with John. He just got his drivers license.Woman: Im sorry. You cant go with John. I dont think sixteen-year-olds should be allowed to drive.They arent serious enough at that age.Girl: But I have to go to the mall. Gabys getting her ears pierced and I want to watch.Woman: I dont think sixteen-year-olds should be allowed to get their ears pierced. They might be sorry later.Girl: I agree, but its fun to watch. Is it OK if we take the bus?Woman: Well, I guess so.Girl :Great! I want to buy a new blouse at the mall, too.Woman: What kind are you going to buy?Maybe I should go with you.Girl: Aw, Mom. Im not a child. I think teenagers should be allowed to choose their own clothes.Woman: Well, I just want to be sure you get something nice.Step 3 pairwork Look at the power point and practise in pairs.Step 4 ListeningListen to the tape and fill in the blanks with the words you hearMolly says that Larry is working late tonight,but kathy thinks Larry shouldnt be _ to work late.Molly _ with Kathy,She thinks teenagers never gets _.Then Kathy thinks Larry shouldnt work every night.This makes Molly agree.They think he needs time _ homework,Also they think Larrys hair should _ because it doesnt look _. Kathy thinks Larry shouldnt wear that _ earring,but Molly thinks she _ like it.Listen again and check the answerTapescriptMolly: Larry is working late again tonight, Katty.Katty: I know. Molly. I dont think sixteen-year-olds should be allowed to work at night. Young people need to sleep.Molly: I disagree with you. Teenager boys never get tired.Katty: Well, maybe. But Larry shouldnt work every night.Molly: Oh, I agree. He needs time to do homework.Katty: You know, Mollyhe should really cut his hair.Molly: Oh, I dont know. Do you think its too long?Katty: Yes, I do. It doesnt look clean, and I think he should stop wearing that silly earring.Molly: Oh, I disagree. I like it. It looks cool.Katty: You know what worries meLarry doesnt seem to have many friends.Molly: Really? I didnt know that.Katty: Yes, Molly. He needs to spends time with friends.Molly: Like you and me?Katty: Maybe.Step 5 Sum-up Grammer focus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.以前我们学过的was/wereborn生于，就是一个被动语态born是个过去分词（bear）Whenwereyouborn?Iwasbornin1989.如果要特别强调动作或行为的执行者，句子后面需接