2. Unit 9 When was it invented? Section A

3. 课时目标 1. 能听懂、会用一般过去时被动语态 的句子，并记下关键信息。 2. 能区分一般现在时和一般过去时的 被动语态。 3. 能用一般现在时和一般过去时的被 动语态造句。

4. 人类的每一次改革都是社会前进 的步伐，每一次思想的升华都越来 越接近文明。发明使人类由黑暗走 向光明。正因为如此，社会离不开 发明。

5. paper-makingcompass printing gun powder

6. A: I think paper-making was invented before the compass. B: I think paper-making was invented after the compass. paper-makingcompass printing gun powder

7. A: I think the calculator was invented before the computer. B: I think the calculator was invented after the computer.

8. Listen and match the inventions with the dates. a b c e

9. Listen and fill in the blanks. Alice: Life must have been difficult when you were a kid. Woman: Oh, not really. Why do you say that? Alice: Well, you didn’t have many modern __________. Like, you probably didn’t have a telephone, right? Woman: Of course we did! How old do you think I am? The telephone was invented in 1876. Alice: ___________ ___________ cars? I bet cars weren’t invented yet. Woman: Sure they were. Cars were invented in 1885. My family had a car. I think you need to take a history class, Alice. inventions How about

10. Alice: Ha, ha! Well, did you have a TV? Woman: No, we didn’t. The TV was invented around 1927, I think. Some friends of mine had one. But in those days, TVs were really expensive, and we couldn’t ___________ one. Alice: And I bet you didn’t have calculators and computers and stuff. That’s something I do know. We learned in school that hand-held calculators were invented in 1971 and __________ computers were invented in 1976. Woman: You’re right. I didn’t have those things when I was young. But I do now! afford personal

11. Pairwork — When was the phone invented? — I think it was invented in 1876. 1876 1971 1927 19761885

12. Invention Inventor Time telephone Bell (an American) 1876 computer an American 1976 light bulb Edison (an American) 1830 camera a Frenchman 1837 bike an Englishman 1839 basketball James Naismith (a Canadian) 1861 Practice A: When was the phone invented? B: It was invented in 1876. A: Who was it invented by? B: It was invented by Bell.

13. battery-operated slippers heated ice cream scoop shoes with adjustable heels 电池供电 的拖鞋 加热的 冰激凌勺 可调节 后跟的鞋

14. Listen and number the inventions in the order you hear them. 1 2 3

15. Listen again and match the items in columns A, B and C.

16. Listen and fill in the blanks. Boy: What are those? Girl: They’re battery-operated slippers. Boy: What are they ________ for? Girl: They’re ________ for seeing in the dark. Boy: Oh, that’s cool! Who were they ________ by? Girl: Julie Thompson. And look at this ________ ice cream scoop. Boy: I know _______ it’s for! It’s used for scooping out really cold ice cream. used invented heated what

17. Girl: Right. It was invented by Chelsea Lanmon. Boy: My favorite are those shoes with adjustable heels. You know — you can ________ the heels up and down. They were invented by Jayce Coziar and Jamie Ellsworth. Girl: And what are they used for? Boy: Well, you can change the ______ of your shoes. You can make the shoes go from casual to dressy. move style

18. Woman: What is it? Girl: It is a heated ice cream scoop. Woman: Who was it invented by? Girl: It was invented by Chelsea Lanmon. Woman: What is it used for? Girl: It is used for scooping really cold ice cream.

19. battery-operated slippers heated ice cream scoop shoes with adjustable heels Seeing in the dark Scooping really cold ice cream Changing the style of the shoes

20. microwave oven heat food cell phone talking without meeting MP3 listen to music

21. car / 1885 / Henry Ford / travel fast fridge / 1862 / Harrison / keep food fresh washing machine / 1858 / Smith / wash clothes

22. The Passive Voice 被动语态 构成 被动语态的构成 : be 动词 + ( 及物动词的 ) 过去分词 一般现在时 一般过去时 am (is, are) + done was (were) + done

23. 主动句变被动句的方式： 主动句： 主语 + 及物动词谓语 + 宾语 被动句 : 主语 + be + 过去分词 + by 宾语 His father loves him. He is loved by his father. 被动语态 (The Passive Voice)

24. 被动语态的句型： 肯定句 主语 + be + 过去分词 + （ by … ） 否定句 主语 + be not + 过去分词 + （ by … ） 一般疑问句 be + 主语 + 过去分词 + （ by … ） ? 特殊疑问句 疑问词 + be + 主语 + 过去分词 + （ by … ） ?

25. Exercises 1. 纸是中国发明的。 Paper ________ ________ (invent) in China. 2. 这栋大楼是去年建造的。 The building ________ ________ (build) last year. 3. 世界上许多国家都讲英文。 English ________ ________ (speak) in many countries all over the world. was invented was built is spoken

26. 4. The TV was invented by an Englishman. ( 就画线部分提问 ) ________ ________ the TV invented ______? 5. The telephone was invented in 1876. ( 就画线 部分提问 ) ________ ________ the telephone ________? Who was by When was invented

27. What do you think is the most helpful / annoying inventions? NameHelpful inventions WhyAnnoying inventions Why

28. Language Points: 1. annoying adj. 讨厌的, 恼人的 ( 往往指事物 ) How annoying it is! 真讨厌。 annoyed adj. 生气的, 恼怒的 ( 往往指人 ) My father is annoyed with me. 爸爸在生我气。

29. 2. helpful adj. 有帮助的, 有益的 Mr White is a very helpful man. 构词法： n. + ful → adj. 再如 : use + ful → useful thank + ful → thankful beauty + ful → beautiful care + ful → careful

30. alarm clock It’s an annoying invention. Because it wakes me up when I’m sleeping.

31. I think computer is the most helpful invention. Because it helps me search for the information that I need.

32. Sample dialogue: A: What do you think is the most helpful / annoying invention? B: I think the most helpful invention is … A: Why is that? B: Well, it gives / helps people …

33. Useful expressions: I think the most helpful invention is … I’d like to have a … because I could … It’s used for … I also want a … because it … A: I’d like to have a radio because I could listen to music all day. B: Yes, but that’s not going to help you leave the island. I think it would be better to have...

34. 学习效果评价 Exercises: 句型转换 1. She was seen to come out of the library by him. （变为主动语态） He _______ _______ _______ out of the library. 2. When are trees often planted? （变为主动语态） When _______ people often _______ _______? 3. The League was founded in Guangzhou in 1922. （就画线部分提问） _______ _______ _______ _______ the League _______? saw her come plant treesdo When and where was founded

35. 4. Did the students wear the school clothes a lot? （变为被动语态） ______ the school clothes ______ a lot? 5. Kate took good care of the baby yesterday evening. （变为被动语态） The baby ______ ______ good care of ______ Kate yesterday evening. was taken by Wereworn

36. 1.They produced that kind of car. 2. The workers built a bridge over the river. 3. Mother tells me a story every day. That kind of car was produced by them. A bridge was built by the workers over the river. I am told a story by Mother every day. 请把下列主动句变为被动句。

37. 1. The water is __________ (boil) now. 2. Who were they ___________ (discover) by? 3. It’s ___________ (use) for scooping really cold ice cream. 4. What do you think is the best __________ (invent)? 用所给词的适当形式填空。 boiling discovered used invention

38. 5. This much loved sport is __________ (enjoy) by young people. 6. Do you think the alarm clock is an __________ (annoy) invention? 7. It __________ (play) by more than 100 million people in over 200 countries including China. 8. Tea ________________ (not bring) to the Western world until 1610. enjoyed annoying is played was not brought

39. 1. A Knife is used for ______ things. A. cutting B. cut C. cuts D. to cut 2. Anna is ______ to choose her own clothes. A. allowed B. allows C. allowing D. allow 3. He finished the homework ______. A. by the end B. to the end C. in the end D. at the end 4. Pens ______ writing. A. used to B. are used as C. are used by D. are used for 选择填空。 A A C D

40. 5. ______ is / are used for seeing in the dark. A. The shoes with adjustable heels B. The battery-operated slippers C. The heated ice cream scoop D. The flying disk 6. — I can’t wake up in the morning. What shall I do? — Buy ______ — it may help. A. a light bulb B. a microwave oven C. an alarm clock D. a binoculars B C

41. 7.— Your city looks beautiful! — Yes. Lots of trees and grass ______ last year. A. are planted B. have planted C. were planting D. were planted 8. — Where is Mary? — She ______ in the cinema an hour ago. A. saw B. sees C. is seen D. was seen D D

42. Go for it ！ HOMEWORK Oral: Recite the dialogs in Section A. Written: Make sentences with the words: invent, use, helpful and annoying.