Unit 3

1. Unit 3 Teenagers should be allowed to choose their own clothes.

2. grammar 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。

3. 1.规则动词的过去分词： 1)一般情况在动词原形后加-ed 2)以不发音e结尾的加-d 3)以辅音加y结尾的，去y变i加-ed 4)以重读闭音节结尾，末尾只有一个辅音字母， 先双写该辅音字母，再加-ed watch---watched practice---practiced stop---stopped study---studied 2.不规则动词的过去分词： done am do have been is had write written has are go gone

4. Parents should allow children to choose their own friends. Children should be allowed to choose their own friends. We can finish the work in a week. Students may take these books out of the library. They must return the tool(工具）on time . The work can be finished in a week. These books may be taken out of the library. The tool must be returned on time.

5. exercise was invented • 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. be planted be allowed is spoken be studied are needed

6. drive 驾驶 driver 驾驶员，司机 driver’s license　 驾驶证 get her ears pierced 穿耳 wear silly earrings戴着傻傻的耳环 buy/choose your own clothes 　　　买／选自己的衣服

7. Studentsshould be allowed to do homework with friends.

8. Students should not be allowed to go out at night.

9. Students should not be allowed to take part-time jobs.

10. Discuss and learn What should be allowed to do? teenagers Teenagers/ should (not) be allowed to … fifteen-year-olds drive a car driver’s license I agree./ I think so. … I disagree ./ I don’t think so. …

11. A: I don’t think twelve-year-olds should be allowed to get their ears pierced. B: I agree. It’s too silly to wear earrings in the school.

12. too wild not serious enough too young not old enough too silly not calm enough A: I don’t think sixteen-year-olds should be allowed to drive. B: I agree. They aren’t serious enough. A: I think teenagers should be allowed to go outwith their friends. B: I agree. They are old enough. They can look after themselves well.

13. Read the statements below. Circle “A” (for agree) or “D” (for disagree). A D 1. Teenagers should be allowed to go out with their friends every night. A D 2. Sixteen-year-olds should be allowed to drive. A D 3. Students should not be allowed to have part-time jobs. A D 4. Sixteen-year-olds should be allowed to get their ears pierced. A D 5. Sixteen-year-olds should be allowed tochoose their own clothes.

14. Sixteen-year-olds “十六岁的孩子们”。这类用连字符连接的合成名词变复数时，通常把最后一个词变成复数。例如： grown-up → grown-ups 成年人 【相关链接】 1) 用连字符连接的合成名词变复数时，如果该词中的第一个词是名词或比其它词更重要，一般将它变成复数。例如： looker-on → lookers-on 旁观者 editor-in-chief → editors-in-chief 主编

15. 2) 由man, woman, lord 等构成的复合名词变成复数时，如果是偏正关系，两个词通常均要变成复数。例如： man doctor → men doctors 男医生 woman singer → women singers 女歌手

16. get one’s ears pierced“穿耳孔”。 get/have sth. done请别人做某事”或“使某事完成”。 Can you get your workfinished in time? 你能及时完成工作吗？ Go and get your haircut.去理一下发吧。 He had his car mended yesterday. 昨天,他让人修了修车.

17. 1b Listen and circle “T” or “F”. 1. Anna can go to the mall with John. T F 2. Anna wants to get her ears pierced.. T F 3. Anna is allowed to choose her own clothes. T F

18. Listen and Circle “T” (for true) or “F” (for false). 1b • Anna can go to the • mall with John. • 2. Anna wants to get • her ears pierced. • 3. Anna is allowed to • choose her own clothes. T F T F T F

19. 2a. Listen and check ,Circle “A” “D” “Dk” to show what Molly thinks. Molly A D Dk A D Dk A D Dk A D Dk A D Dk A D Dk Kathy __1. Sixteen-year-olds should not be allowed to work at night. __2. Larry shouldn’t work every night. __3. He should cut his hair. __4. He should stop wearing that silly earring. __5. He doesn’t seem to have many friends. __6. He shouldn’t work on weekends.

20. __ It looks cool. __ Young people need to sleep. __ He needs to spend time with friends. __ He needs time to do homework. __ It doesn’t look clean. 2b.Listen again. What are Kathy’s and Molly’s reasons? Number their reasons in the correct order. 4 1 5 2 3

21. 1. stop doing停止做某事 He should stop wearing that silly earrings. We two stopped talking. stop to do 停下来去做某事 We are tired, let’s stop to have a rest. stop sb./sth. from doing阻止某人做某事 The rain stopped us from having a pinic.

22. 2. seem to do sth.好像 His temperature seems to be all right. seem+形容词 The question seems quite easy. seem+名词 That seems a good idea. It seems + that 从句 It seemed that nobody knew anything about the matter.

23. 3.agree to表示“同意”，后面接表示“计划，建议，安排”等的名词，接动词原形时构成动词不定式结构。 He agreed to our plan at last. They agreed to come on Monday. agree on表示“(两人以上)就…… 取得一致意见，在……方面意见一致”，agree in doing sth.替换。 They agreed on the plan.=They agreed in doing the plan. agree with同意某人 He agreed with what I said. 也可以表示“某人适应（食物、气候等）”。 The weather doesn’t agree with me.

24. Grammar Focus

25. 3a.Read the conversation. S: We have a lot of rules at my home. W: So do we. For example, I have to stay at home on school nights. S: I usually do, too. But sometimes I’m allowed to study at a friend’s house. What about weekends? W: Well, I’m allowed to go to the movies with friends on Friday nights. S: Me, too, but I have to be home by 10:00pm. W: And on Saturday afternoon, I’m allowed to go shopping with my friends. S: That’s nice. W: And I’m allowed to choose my own clothes, but I’m not allowed to get my ears pierced yet.

26. Answer the questions: 1. Can Sun Fei go out on school nights? 2. Can Sun Fei study at a friend’s house? 3. Who is allowed to go to the movies with friends on Friday? 4. Does Sun Fei have to be home by 10:00 pm? 5. What isn’t Wu Yu allowed to do? No, she can’t. Yes, she can. Both Sun Fei and Wu Yu. Yes, she does. She isn’t allowed to get her ears pierced.

27. 3a.Read the conversation. S: We have a lot of rules at my home. W: So do we. For example, I have to stay at home on school nights. S: I usually do, too. But sometimes I’m allowed to study at a friend’s house. What about weekends? W: Well, I’m allowed to go to the movies with friends on Friday nights. S: Me, too, but I have to be home by 10:00pm. W: And on Saturday afternoon, I’m allowed to go shopping with my friends. S: That’s nice. W: And I’m allowed to choose my own clothes, but I’m not allowed to get my ears pierced yet.

28. So do I 1. So do we So do we为倒装句, 其结构是 So + be/助动词/情态动词＋主语, 在时态上应和上一句保持一致 ---We have a lot of rules at my house. ---_________________. ---They went to the movies yesterday. ---_________________. ---She has been to Shanghai. ---________________. So did Tom So have I too句末, 肯定句/问句 either句末, 否定句also正式文体, 各句型 否定倒状句用 “nor/neither+be/助动词/情态动词+ 主语” so did 1)Li Ming had a good holiday, ______________I. 2)He can swim, ___________I. 3)He can’t lift the box, __________I. 4)I have never been to England, _____________my friend. 5) My friend will go abroad, ____________Tom. 6) I didn’t go to school ____________ he. 7) I’m a teacher, __________ he. so can neither can neither has so will neither did so is

29. A:What rulesdo you have at home? B:Well, I’mnot allowed to go outon school nights. How about you? A:I’mnot allowed to go outon school nights, either. But I can … Talkabout the rules in your family with your partners.

30. stay up: He stayed up too late last night. She stays happy all day. I stayed at home instead of going out at night. clean up: Peter, clean up your room by yourself. The plate is dirty. Can you clean it up? until: 直到……为止 He does his homework until 10:00 Please wait until I return. not…until: 直到……才 He didn’t do his homework until 10:00 I didn’t get to sleep until 11:oo last night.