山东省青岛市城阳区第七中学九年级英语全册 Unit 3 Teenagers should be allowed to choose their own clothes课件 人教新目标版.ppt

Unit 3,Teenagers should be allowed to choose their own clothes.,定义:表示主语是动作的承受者。 构成:be+及物动词的过去分词。be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。,被动语态,1a,Woman: So, what are you doing this afternoon, Anna? Anna: 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.,Anna: 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. Anna: I agree, but its fun to watch. Is it OK if we take the bus?,Woman: Well, I guess so. Anna: 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. Anna: 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.,1c,Sample dialogue 1:,A: I think teenagers should be allowed to go out with their friends. B: I agree. They are old enough. They can look after themselves well.,Sample dialogue 2:,A: I dont think twelve-year-olds should be allowed to get their ears pierced. B: I agree. Its too silly to wear earrings in the school.,Sample dialogue 3:,A: I think students should be allowed to do homework with their friends. B: I disagree. They talk instead of doing homework.,A: I think teenagers should be allowed to go out every night. A: I think teenagers should be allowed to have part-time jobs. A: I think teenagers should be allowed to drive.,B: I agree. They are old/ clever/strong/ bright/serious/ kind/ careful/ lucky enough.,Practice,A: I dont think teenagers should be allowed to get their ears pierced. A: I dont think teenagers should be allowed to choose their own clothes.,B: I agree. They are not old/ clever/ strong/ bright/ serious/ kind/ careful/ lucky/ enough.,B: I agree. They are too young/silly/wild,2a,Kathy _1. Sixteen-year-olds should not be allowed to work at night. _2. Larry shouldnt work every night. _3. He should cut his hair. _4. He should stop wearing that silly earring. _5. He doesnt seem to have many friends. _6. He shouldnt work on weekends.,Molly A D Dk A D Dk A D Dk A D Dk A D Dk A D Dk,Listen again. What are Kathys and Mollys reasons? Number their reasons in the correct order.,2b,4,5,2,3,Molly: Larry is working late again tonight, Kathy. Kathy: 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. Teenage boys never get tired.,Kathy: Well, maybe. But Larry shouldnt work every night. Molly: Oh, I agree. He needs time to do homework. Kathy: You know, Molly he should really cut his hair. Molly: Oh, I disagree. I kind of like it. It looks cool!,Kathy: You know what worries me Larry doesnt seem to have many friends. Molly: Yeah, I know. I think he shouldnt work on weekends. Kathy: Oh I agree, Molly. He needs to spend time with friends. Molly: Like you and me? Kathy: Maybe.,2c,Make a list of things teenagers should and should not be allowed to do. Discuss your list with your partner.,Sample dialogue 1,A: Do you think teenagers should be allowed to have mobile phones? B: Yes. Its convenient for students and their parents to communicate with each other.,A: Do you think teenagers should be allowed to have mobile phones? B: No, I dont think so. Perhaps students pay more attention to short messages than to their studies.,Sample dialogue 2,A: Do you think teenagers should be allowed to have a trip by themselves? B: Yes, I do. They may ask some travel agencies to help them.,Sample dialogue 3,I think sixteen-year-olds should be allowed to drive.,Sentence structure:,“sb. + should / should not + be allowed to do .”,我认为应该允许16岁的孩子开车。,2. 我不同意, 我认为16岁这个年纪太年轻了。 I disagree. I think sixteen is too young. 3. 你认为应该允许13岁的孩子们做兼职工作吗？ Do you think thirteen-year-olds should be allowed to take part-time jobs?,4. 安娜可以选择自己的衣服。 Anna is allowed to wear her own clothes. 5. 那个年龄的他们不够稳重。 They are not serious enough at that age.,1. sixteen-year-olds 十六岁的青少年 它相当于一个名词, 等于sixteen year- old kids. “一个16岁青少年”的表达方式: a kid of sixteen a kid of sixteen years old a sixteen-year-old kid,Explanation,2. stop doing 停止做某事 He should stop wearing that silly earrings. We two stopped talking. 我们俩个停止了谈话。,3. 主seem to do sth. 好像 His temperature seems to be all right. 他的体温好像完全正常。 seem的其他用法: (1) seem+形容词 The question seems quite easy. 那个问题好像很容易。,(2) seem+名词 That seems a good idea. 那好像是个好主意。 (3) It seems + that 从句 It seemed that nobody knew anything about the matter. 看来没有人知道这件事。,The telephone _(invent) by Bell in 1876. The trees may _(plant) in spring. Teenagers should not _(allow) to drive. English _(speak) in Canada. Math must _ (study) well. We _(need) to learn English.,Finish the sentences.,主动语态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。,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 现在进行时被动语态的构成为： 主语is / am / are + being 过去分词 一般将来时被动语态的构成为: 主语will be 过去分词 现在完成时被动语态的构成为：主语have / has been 过去分词 含有情态动词的被动语态: 主语情态动词be过去分词,五. 填空（被动语态填空） 1. They often clean their classroom after school . Their classroom _ often _ by them after school. 2. Li Lei gave Tom a new pen last week . A new pen _ _ _ Tom last week . 3. A lot of people in China can speak English now . English _ _ _ by a lot of people in China now. 4. I have learned English for about two years. English _ _ _ for about two years. 5. They will publish these story-books next month. These story-books _ _ _ next month.,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 Such books are written for children. 这些书是为儿童写的。 I havent been told about it . 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。 The cup was broken by David. （3）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。,1. In some countries, tea _ with milk and sugar. A. is serving B. is served C. serves D. served 2. Great changes _ in my hometown since 1980. A. have been taken place B. took place C. have taken place D. were taken place 3. The new type of car is going to _ in three years. A. turn out B. be turned out C. has turned out D. have been turned out 4. The woman murdered her friend and _ to _. A. was sentenced, death B. sentencing , die C. sentenced, death D. sentenced , die,sentence sb. to death 判某人死刑,5. Do you like the skirt ? It _ soft. A. is feeling B. felt C. feels D. is felt 6. Are you still here? You were here an hour ago. Who _ for? A. are you waiting B. did you wait C. were you waiting D. do you wait 7. _ to know Professor Zhang. A. He said B. I said C. He is said D. It says 8. I want to sit at the table near the window. Sorry , _ already. A. it took B. it takes C. it is taking D. it has been taken,Thank you!,