2. We’ve learned something about passive voice in Unit 3. what have we learned?

3. 被动语态 (Passive Voice) 被动语态的基本构成形式： 主语 + be + done ( 过去分词 ) 语态共有两种： 主动语态 (active voice) 被动语态 (passive voice) We speak English. English is spoken by us.

4. A. 一般现在时的被动语态： B. 一般过去时的被动语态： was were + p.p. ( 过去分词 ) am is are + p.p. ( 过去分词 )

5. What does Ricky hope at the end of his e-mail? He hopes more events like this to raise money for charity. Question organized will be

6. Tom will clean the room tomorrow. 主 谓 宾 The room will be cleaned by Tom tomorrow.

7. Passive voice in simple future tense Tom will clean the classroom tomorrow. The classroom will be cleaned by Tom tomorrow. We will hold the sports meeting next week. The sports meeting will be held next week. Students will plant many trees in our school next year. Many trees will be planted by students next year. She will take the medicine three times a day. The medicine will be taken by her three times a day.

8. 结构 一般将来时 主:主: 被:被: He will clean the room will be cleaned him + + + + by Conclusion : 被动语态 + tomorrow. The room tomorrow. will be going to be+v.ed

9. Practise : Finish the questions about the charity show.(p66) 1.The charity show is going to be held next Sunday. 2.The show will be held in the school hall. 3.A lot of people from local businesses will be invited to the show. 4.Millie will be chosen as the host of the charity show. 5.At least 100,000 yuan will be raised in the show. 6.The money will be used to help Project Hope in China.

10. Why was Ricky so busy before the show? A lot of work. Question should be finished

11. 含有情态动词的被动语态 含有情态动词的主动句变成被动句时， 由 “ 情态动词 + be + 过去分词 ” 构成

12. e.g. We can repair this watch in two days. This watch can be repaired in two days. They should do it at once. It should be done at once.

13. Amy can take good care of Gina. Gina can be taken good care of by Amy.

14. We can use computers to … =Computers can be used to … You should do your homework first. Your homework should be done first. Passive voice with model verbs

15. 结构 情态动词 被动语态 +be+V.ed 主:主: 被:被: He must clean the room must be cleaned him + + + + by Conclusion : The room can may need should must

16. (should / hang / across the stage) The curtains should be hung across the stage. (may / stick / on the side door) The exit may be stuck on the side door. P67 课本练习

17. (can / arrange / in front of the stage) Seats can be arranged in front of the stage. (should / place / at both sides of the stage) Lights should be placed at both sides of the stage.

18. (must / set / in the middle of the stage) The microphone must be set in the middle of the stage. (may / put / in the four corners of the school hall) The speakers may be put in the four corners of the school hall.

19. 1.We must look after the old very well. The old must be looked after very well by us. 2.You should hand in the composition on time. Your composition should be handed on time. 3. They must return the magazines on time. The magazines must be returned by them on time. 4. You may not take the books out of the reading room. The books may not be taken out of the reading room. 5.We can’t eat snacks in class. Snacks can’t be eaten in class. Practise 1 将下列句子改为被动语态.

20. 1.What ___ your computer ____for?(use) 2.A new airport _________ in 1992.(build) 3.It’s dark. The seats _______________ easily (cannot find). 4.New skills and knowledge ___________ (teach) to the workers last year. 5.The forests __________________ (should not turn) into building. 6.His hair ____________ (will cut) short this afternoon. Practise 2:Fill in the blanks. are used will be cut was built cannot be found were taught should not be turned

21. Was the show a success? How do you know? A lot of money to Project Green Hope. Question has been donated

22. We have made twenty more keys. Twenty more keys have been made by us.

23. Presentation Passive voice in present perfect tense 1. “I have been chosen to be the host of the charity show.” Hobo says. 2.Millie has been chosen as the host of the charity show. 3.The project has already been finished.

24. 结构 现在完成 被动语态 +been+V.ed 主:主: 被:被: He has cleaned the room has been cleaned him + + + + by Conclusion The room have has

25. 1.We have seen the movie twice. The movie has been seen twice by us. 2.You have handed in the composition already. Your composition has been handed already. 3. They have returned the magazines on time. The magazines have been returned by them on time. 4. We haven’t taken the books out of the reading room. The books haven’t been taken out of the reading room. 5.We have eaten snacks in the box. Snacks in the box have been eaten. Practise : 将下列句子改为被动语态.

26. 1.He has invited us to join his birthday party. We have been invited to join his birthday party by him. 2. We haven’t chosen one of the new books to buy. One of the new books hasn’t been chosen to buy by us. 3. Have they raised much money for Project Hope? Has much money been raised for Project Hope by them? 4.Have you designed three beautiful dresses? Have three beautiful dresses been designed by me? 5. Many TV stations have supported this charity show. This charity show has been supported by many TV stations. 6. The police have caught the robbers with the help of the students. The robbers have been caught by the police with the help of the students. 将下列句子改为被动语态.

27. Summary

28. C. 一般将来时的被动语态： will be going to + be + p.p. ( 过去分词 ) D. 情态动词的被动语态： E. 现在完成时的被动语态： have has + been + p.p. ( 过去分词 ) can must may + be + p.p. ( 过去分词 ) should

30. 1. Our room must ___ clean. A. keep B. be kept C. to be kept D. to keep 2. - I'd like to buy that coat. - I'm sorry. ___. A. It sold B. It's selling C. It's been sold D. It had been sold I. 单项选择

31. 3. The key ___ on the table when I leave. A. was left B. will be left C. is left D. has been left 4. These papers ___ yet. A. have not written B. have not been written C. has not written D. has not been written

32. 5. His new book ___ next month. A. will be published B. is publishing C. is being published D. has been published 6. The sports meeting ___ be held until next week. A. didn't B. won't C. isn't D. doesn't

33. 7. ___ the watch been repaired yet? I badly need it. A. Does B. Has C. Is D. Are 8. ___ these desks be needed? A. Will B. Are C. Has D. Do

34. 9. More man-made satellites _____ into space. A. must sent up B. can sent up C. must be sent up D. may be send up 10. This _____ in a short time. A. can’t be done B. can done C. must be do D. is done

35. 11. Must the composition _____ in an hour? A. will be finished B. has been finished C. is finished D. be finished 12. Mars _____ soon in the future by human beings. A. maybe visit B. maybe visited C. may be visit D. may be visited

36. 总结没有被动语态，特殊的情况 1. The dish _____ good.( taste) 2. The book may _____ ( 借 ) for two weeks. 3. The glass _____ (break) easily. 4. The bike _______(cost) you 500 yuan. 5. You can’t use the computer. It _____________/____________ ( 坏掉了） 6. His new novel will __________ ( 出版） next week. 7. An accident _______ to him last night. (happen) 8. Great changes _______in yangzhou since 1999. (take place) 9. The children are often heard _______ (sing ) 10. He was let _____ (go) outside. tastes be kept breaks cost was broken It broke down. come out happened have taken place to sing to go

37. 这种教育光盘很畅销，很快卖光了。 The rice _______(grow) well, it ______ in China. His computer needs _______.( mend) I had my hair _______(cut) yesterday. This kind of educational CD-ROMs sells well They were sold out soon. grows is grown mending/ to be mended cut

38. Finish the exercises on P68 and P69.