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1、 Unit 3 Teenagers should be allowed to choose their own clothes.Period 1Look at the following pictures.Do you think the girl in the picture is beautiful?Why?She can choose the clothes that she likes.Can you choose your own clothes?Do your parents let you buy the clothes you really like?Your parents

2、dont allow you to choose your own clothes.You are not allowed to choose your own clothes.Do you agree? Or disagree? 1. Students should not be allowed to take mobile phones to school. mobile phone2. Students should be allowed to do homework with friends. 3. Students should not be allowed to go out at

3、 night.4. Students should not be allowed to take part-time job. Listening (1b: P18)1.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. TFTOral Practice (1c: P18)Sample dialogue 1:A: I think teenagers should be allowed to go out with

4、 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 ho

5、mework with their friends.B: I disagree. They talk instead of doing homework.2a Listen and check ( ) what Kathy thinks. Circle “Agrees”, “Disagrees”, or “Doesnt know” to show what Molly thinks.KathyMolly 1. Sixteen-year-olds should not be allowed to work at night. 2. Larry shouldnt work every night.

6、 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. Agrees Disagrees Doesnt knowAgrees Disagrees Doesnt knowAgrees Disagrees Doesnt knowAgrees Disagrees Doesnt knowAgrees Disagrees Doesnt knowAgrees Disagr

7、ees Doesnt know 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 Listen again. What are Kathys and Mollys reasons? Number their reasons in the correct order.Sample dialogue 1: A: Do you think teenagers shou

8、ld be allowed to have mobile phones?B: Yes. Its convenient for students and their parents to communicate with each other. 2c PAIRWORK Make a list of things teenagers should and should not be allowed to do. Discuss your list with your partner.結(jié)構(gòu)結(jié)構(gòu):be +動(dòng)詞的過去分詞動(dòng)詞的過去分詞一般現(xiàn)在時(shí)一般現(xiàn)在時(shí):am/is/ are +動(dòng)詞的過去分詞動(dòng)詞的過去

9、分詞一般過去時(shí)一般過去時(shí):was/were +動(dòng)詞的過去分詞動(dòng)詞的過去分詞含有情態(tài)動(dòng)詞的被動(dòng)語(yǔ)態(tài)含有情態(tài)動(dòng)詞的被動(dòng)語(yǔ)態(tài):情態(tài)動(dòng)詞情態(tài)動(dòng)詞 +動(dòng)詞的過去分詞動(dòng)詞的過去分詞Parents should allow teenagers to go out with their friends.Teenagers should be allowed to go out with their friends.Parents should allow six-year-olds to drive.Sixteen-year-olds should be allowed to drive.1.They sho

10、uld allow us to have part-time jobs. 2. We should allow children to spend time with their friends. We should be allowed to have part-time job.Children should be allowed to spend time with their friends.3. The teacher should allow Anna to finish the picture. 4. Parents should allow children to choose

11、 their own friends. Anna should be allowed to finish the picture. Children should be allowed to finish the picture. 1.1.規(guī)則動(dòng)詞的過去分詞：規(guī)則動(dòng)詞的過去分詞：1)1)一般情況在動(dòng)詞原形后一般情況在動(dòng)詞原形后加加-ed-edwatch-watched2)2)以不發(fā)音以不發(fā)音e e結(jié)尾的加結(jié)尾的加-d-dpractice-practiced3)3)以輔音加以輔音加y y結(jié)尾的，去結(jié)尾的，去y y變變i i加加-ed-edstudy-studied4)4)以重讀閉音節(jié)結(jié)尾，末尾只有一個(gè)輔音字母，以重讀閉音節(jié)結(jié)尾，末尾只有一個(gè)輔音字母， 先雙寫該輔音字母，再加先雙寫該輔音字母，再加-ed-edstop-stopped2.2.不規(guī)則動(dòng)詞的過去分詞不規(guī)則動(dòng)詞的過去分詞：amisarebeenhavehashaddodonewritewrittengogone