甘肅省蘭州市蘭州三十一中2011-2012學年九年級英語 unit 9 Section A課件 人教新目標版

1、When was it invented?Unit 9Section ALanguage Goal: 1.Grasp the structure of passive voice: be done.2. Talk about the history of some inventions. The passive voice.被動語態(tài)被動語態(tài) 英語中動詞有英語中動詞有主動主動和和被動被動兩種語態(tài)，兩種語態(tài)，主動語態(tài)表示主語主動語態(tài)表示主語是動作的執(zhí)行者，被動語態(tài)表示主語是動作的承受者是動作的執(zhí)行者，被動語態(tài)表示主語是動作的承受者， 在被動語態(tài)中動作的執(zhí)行者有時用在被動語態(tài)中動作的執(zhí)行者有時用by

2、短語表示出來。短語表示出來。 一一. 被動語態(tài)的構成被動語態(tài)的構成:助動詞助動詞be+ (及物動詞的及物動詞的) 過去分詞過去分詞 am (is, are) + done was (were) + done一般現(xiàn)在時一般現(xiàn)在時一般過去時一般過去時Grammar 二二.被動語態(tài)的用法被動語態(tài)的用法: 1.不知道動作執(zhí)行不知道動作執(zhí)行者時者時,常用被動語態(tài)。常用被動語態(tài)。e.g. My bike was stolen yesterday. This car is made in America.2. 不必要說出動作執(zhí)行者時不必要說出動作執(zhí)行者時,常用常用被動語態(tài)。被動語態(tài)。e.g. Rome wa

3、s not built in a day.3. 為了突出強調動作的承受者時為了突出強調動作的承受者時,常用被動語態(tài)。常用被動語態(tài)。e.g. Thousands of beaches are polluted .三三.主動語態(tài)變?yōu)楸粍诱Z態(tài)的步驟主動語態(tài)變?yōu)楸粍诱Z態(tài)的步驟:1.把原主動句中的賓語轉換為被動語態(tài)的主語。把原主動句中的賓語轉換為被動語態(tài)的主語。2.把動詞改為被動形式，即把動詞改為被動形式，即 “be + 過去分詞過去分詞”。注意。注意 be動詞要按新的主語的人稱和數(shù)進行變化，時態(tài)要和原動詞要按新的主語的人稱和數(shù)進行變化，時態(tài)要和原來的主動語態(tài)的時態(tài)保持一致。來的主動語態(tài)的時態(tài)保持一致。

4、3. 原來主動語態(tài)句中的主語，如果需要，就放在原來主動語態(tài)句中的主語，如果需要，就放在by后面后面以它的賓格形式出現(xiàn)。如果沒有必要就可以省略。其以它的賓格形式出現(xiàn)。如果沒有必要就可以省略。其他的成分他的成分 (定語，狀語定語，狀語) 不變，句式也不能變。不變，句式也不能變。Bell invented the telephone in 1876. The telephone was invented by Bell in 1876. 主動語態(tài)變被動語態(tài)的結構圖主動語態(tài)變被動語態(tài)的結構圖:主語主語謂語動詞謂語動詞過去時過去時賓賓時間狀語時間狀語主語主語謂語動詞的謂語動詞的過去分詞過去分詞賓賓時間狀

5、語時間狀語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.I. 請把下列主動句變?yōu)楸粍泳湔埌严铝兄鲃泳渥優(yōu)楸粍泳?用所給動詞的正確形式填空：用所給動詞的正確形式填空

6、： 1. The bike _(fix) up by Xiao Ming yesterday. 2. Sunglasses _ (use) for protecting peoples eyes. 3. A picture _(put) up on the blackboard. 4. French_ (speak) in France. 5. Teenagers should _(allow) to choose their own clothes.was fixedare usedis putis spokenbe allowedPractice一般現(xiàn)在時一般現(xiàn)在時 am / is / a

7、re + done 一般過去時一般過去時 was / were + done e.g.e.g.Chinese is spoken in by the most people in the world. 世界上講漢語的人最多。世界上講漢語的人最多。紙是中國發(fā)明的。紙是中國發(fā)明的。 Paper was invented in China.被動語態(tài)結構匯總被動語態(tài)結構匯總一般將來時一般將來時 shall / will + be + done 過去將來時過去將來時 would / should + be + donee.g.e.g.我的作業(yè)將在半小時后被完成我的作業(yè)將在半小時后被完成。 My home

8、work will be finished in half an hour. 他們結束訓練時將被派往部隊。他們結束訓練時將被派往部隊。 They would be sent to the army when they finished the training. 現(xiàn)在進行時現(xiàn)在進行時 am / is / are + being + done 過去進行時過去進行時 was / were + being + done e.g.e.g.這個計劃正在執(zhí)行中。這個計劃正在執(zhí)行中。The project is being carried out.The case was being investigate

9、d then.那時這案子正在調查中。那時這案子正在調查中?，F(xiàn)在完成時現(xiàn)在完成時 have / has + been + done 過去完成時過去完成時 had + been + donee.g.e.g.This novel has been translated into several languages. 這本小說已被譯成了幾種語言。這本小說已被譯成了幾種語言。They said that production costs had been reduced.他們說生產成本已經下降了。他們說生產成本已經下降了。 Warming upCan you tell when were they in

10、vented?1885年年1876年年1971年年calculator klkj,let 1976年年1927年年1a Look at the things below. Number them 15 according to the order they were invented.35241A: I think the telephone was invented before the car.B: Well, I think the telephone was invented after the car.a1bListen and match the inventions with t

11、he dates._ 1876_ 1885_ 1927_ 1971_ 1976bacdebecdTAPESCRIPTSGirl: Life must have been difficult when you were a kid.Woman: Oh, not really. Why do you say that?Girl: Well, you didnt have many modern inventions. Like, you probably didnt have a telephone, right?Woman: Of course we did! How old do you th

12、ink I am? The telephone was invented in 1876.Girl: How about cars? I bet cars werent 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.Girl: Ha, ha! Well, did you have a TV?Woman: No, we didnt. The TV was invented aro

13、und 1927, I think. Some friends of mine had one. But in those days, TVs were really expensive, and we couldnt afford one.Girl: And I bet you didnt have calculators and computers and stuff. Thats something I do know. We learned in school that hand-held calculators were invented in 1971 and personal c

14、omputers were invented in 1976.Woman: Youre right. I didnt have those things when I was young. But I do now!3122aListen and number the inventions in the order that you hear them.2bListen again and match the items in columns A, B, and C. inventionWho was it/were they invented by?What is it/are they u

15、sed for?shoes with adjustable heelsChelsea Lanmonscooping really cold ice creambattery-operated sneakersJayce Coziar and Jamie Ellsworthseeing in the darkheated ice cream scoopJulie ThompsonChanging the style of the shoesTapescripts Boy: What are those?Girl: Theyre battery-operated slippers.Boy: Wha

16、t are they used for?Girl: Theyre used for seeing in the dark.Boy: Oh, thats cool! Who were they invented by?Girl: Julie Thompson. And look at this heated ice cream scoop. Boy: I know what its for! Its used for scooping out really cold ice cream.Girl: Right. It was invented by Chelsea Lanmon.Boy: My

17、favorite are those shoes with adjustable heels. You knowyou can move 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 style of your shoes. You can make the shoes go from casual to dressy. 2cPAIRWORKRole play

18、the conversations using the information in the chart above. be used for 被動語態(tài)被動語態(tài), “被用來做被用來做”。介詞。介詞 for 表目的用途表目的用途, 可接名詞或動名詞形式。可接名詞或動名詞形式。 A: What is this? B: This is a heated ice cream scoop. A: What is it used for? B: It is used for scooping really cold ice cream. A: Who was it invented by? B: It w

19、as invented by Chelsea Lanmon.Grammar FocusWhen was the car invented?It was invented in 1885.When were electric slippers invented?They were invented last year.Who were they invented by?They were invented by Julie Thompson.What are they used for?Theyre used for seeing in the dark.3aPAIRWORKMake a lis

20、t of five helpful inventions and five annoying inventions. Helpful inventions Annoying inventionsexample telephone1. _2. _3. _4. _5. _example alarm clock 1. _2. _3. _4. _5. _vacuumvkjum cleanertelevisioncarcomputerfax machineair-conditionertruckhair dryerjunk foodice creamModel 1 A: What is this?B:

21、It is an alarm clock. A: What is it used for?B: It is used for waking people up in the morning.A: Do you think it is annoying?B: Sometimes, when I want to go on sleep.PAIRWORK3bModel 2 A: What is this? B: It is a light bulb. A: What is it used for?B: It is used for giving light.A: Do you think it is

22、 helpful?B: Yes, I think so. Because I always do homework and read books in the evening by its light.Model 3 A: What is this?B: It is a microwave oven. A: What is it used for?B: It is used for heating cold food and cooking meals.A: Do you think it is helpful?B: Yes, I think so. Because my parents ar

23、e very busy and I can use it to cook meals by myself.A: What do you think is the most helpful invention?B: I think the most helpful invention is the vacuum cleaner. A: Why is that?B: Well, it can help me clean the floor when mother asks me to do the cleaning.Model 4 A: What do you think is the most

24、annoying invention?B: I think the most annoying invention is the air-conditioner.A: Why is that?B: Well, I feel uncomfortable in the room with an air-conditioner.Model 5 4GROUPWORKChoose five inventions you would like to have if you are alone on an island.A: Id like to have a radio because I could listen to music all day.B: Yes, but thats not going to help you leave the island. I think it would be better to have Model 1 A: Id like to have some matches because I could light a fire to keep warm.B: Yes, but thats not going to help you leave th