1、when was it invented?unit 6which do you think is the most important invention in the world? what other can you think of? tv? telephone? radio?computer? car?can you tell when they were invented?a: i think was invented before b: well, i think was invented after .1agroupwork look at the things below. n

2、umber them 15 according to the order they were invented.35241a: i think was invented before b: well, i think was invented after .a: i think was invented before b: well, i think was invented after a1blisten and match the inventions with the dates._ 1876_ 1885_ 1927_ 1971_ 1976bacdebecd1cpairworkstude

3、nt a, cover the dates and ask student b when were the things in the picture above were invented.model a: when was the telephone invented?b: i think it was invented in 1876.a: when was the car invented?b: i think it was invented in 1930. i think it was invented after the telephone.a: when was the _ i

4、nvented?b: i think it was invented in _.pairwork (1c:p68)19761885187619271971edison invented the light bulb.the light bulb was invented by edison.who who waswas the light bulb the light bulb invented byinvented by? ?the telephone by bell.was invented who was the telephone inventedwho was the telepho

5、ne invented by?by?bell invented the telephone._ was invented by _.the carkarl benzwho was the car invented by?who was the car invented by?karl benz invented the car.a: what is the car used for?b: the car is used for traveling. a: what is the _ used for?b: i think it is used for _.talking with people

6、a: what is the used for?b: i think it is used for _. (count)countinga: what is the used for?b: i think it is used for _.(work)workinga: what is the used for?b: i think it is used for _.(ride) ridinga: what is the _ used for?b: it is used for _.counting(count)a: what is the used for?b: it is used for

7、 _.(count)countinga: what is the used for?b: it is used for _. (watch the things far away clearly)watching the thingsfar away clearly.a: what is the _ used for?b: it is used for _ .making the food hot.(make the food hot)a: when was invented?b: it was invented ina: who was it invented by?b: it was in

8、vented bya: what is the used for?b: the is used for doing who were they invented by?who were they invented by?what are they used for?what are they used for?adjustable 可調整的可調整的operate 操作操作 heat 加熱加熱3122alisten and number the inventions in the order that you hear them.2cpairworkrole play the conversat

9、ions using the information in the chart above.model a: who was / were it / they invented?b: they was / were invented by .a: what is / are it / they used for?b: it / they is / are used for . be used for 被動語態被動語態, “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 heat

10、ed 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 was invented by chelsea lanmon.oral practice四、主動語態變為被動語態的步驟四、主動語態變為被動語態的步驟: they speak english. 主語主語 謂語謂語 賓語賓語english is spoken by them.主語主語 謂語動詞的過去分詞謂語動詞的過去分詞 賓語賓語(1)主動語態的賓語變成被

11、動語態的主語。主動語態的賓語變成被動語態的主語。(2)主動語態的謂語動詞變為被動語態的謂語主動語態的謂語動詞變為被動語態的謂語動詞，即動詞，即”“”“be+及物動詞的過去分及物動詞的過去分詞詞”(be有時態、人稱和數的變化有時態、人稱和數的變化)。(3)主動語態的主語變為主動語態的主語變為by的賓語。的賓語。主動語態變為被動語態的步驟主動語態變為被動語態的步驟1.i open the door.the door is opened by me.2.he often helps homeless people.homeless people are often helped by him.3.i

12、 handed out some papers just now.some papers were handed out by me just now.主動語態:主語主語是動作的執行者執行者。被動語態:主語主語是動作的承受者承受者。被動語態結構為：(主動語態)(主動語態)(主動語態)(被動語態)(被動)(被動語態)be+過去分詞過去分詞將下列句子變為被動語態。將下列句子變為被動語態。五、被動語態的時態表示五、被動語態的時態表示 被動語態的時態一般只通過被動語態的時態一般只通過be表現表現, 過去分詞過去分詞 不變。例如：不變。例如：一般現在時一般現在時: the trees are plant

13、ed by the farmers.一般過去時一般過去時: the trees were planted by the farmers.現在進行時現在進行時: the trees are being planted by the farmers.一般將來時：一般將來時：the trees will be planted by the farmers.現在完成時：現在完成時：the trees have been planted by the farmers.含情態動詞的被動語態：含情態動詞的被動語態：the trees can (must,should) be planted by the f

14、armers.六、被動語態的幾種句型：六、被動語態的幾種句型：肯定句肯定句 主語主語+be+過去分詞過去分詞+(by)a sweet song was sung by her on the stage.否定句否定句 主語主語+be+not+過去分詞過去分詞+(by)a sweet song wasnt sung by her on the stage.一般疑問句一般疑問句 be+主語主語+過去分詞過去分詞+(by)was a sweet song sung by her on the stage?特殊疑問句特殊疑問句 疑問詞疑問詞+be+主語主語+過去分詞過去分詞+(by)where was

15、a sweet song sung by her?1. the woman asked the policeman for help.2. the old man on tv tells a story on sunday.3. do they use the box as a table?4. she sent me a collection last week.5. the teacher doesnt teach us math this term.練習練習: : 請把下列主動句變為被動句請把下列主動句變為被動句6. did lily buy her sister a hat?7. we

16、 often hear him play the violin at home.8. the lazy boy didnt wash clothes yesterday.9. students listen to the kind teacher carefully.10.when did your father took you to the park.3apairworkmake a list of five helpful inventions and five annoying inventions. helpful inventions annoying inventionsexam

17、ple telephone1. _2. _3. _4. _5. _example alarm clock 1. _2. _3. _4. _5. _vacuum cleanertelevisioncarcomputerfax machineair-conditionertruckhair dryerjunk foodice creammodel 1 a: what is this?b: 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 t

18、hink it is annoying?b: sometimes, when i want to go on sleep.model 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 helpful?b: yes, i think so. because i always do homework and read books in the evening by its light.model 3 a: what

19、 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 are 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 t

20、he 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.3bpairworkdiscuss your opinion in activity 3a with your partner.model 1 a: what do you think is the most annoying invention?b: i think the most annoying inve

21、ntion is the air-conditioner.a: why is that?b: well, i feel uncomfortable in the room with an air-conditioner.model 2 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 t

22、o 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 the island. i think it would be better to have a cell phone.model 2a: id like to have a telescope because i

23、could look far.b: yes, but thats not going to help you leave the island. i think it would be better to have a signal lamp.model 3homework write an article according to the information in part 4. exercise 1. they produced that kind of car.2. the workers built a bridge over the river.3. mother tells m

24、e 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. 請把下列主動句變為被動句請把下列主動句變為被動句:1. the tv _ (invent) around 1927.2. they are used for _ (see) in the park.3. this kite _ (make) by uncle wang.4. tea _ (discov

25、er) a long time ago.5. our classroom _ (should clean) every day.was inventedseeingwas madewas discoveredshould be cleanedii. 用所給動詞的適當形式填空：用所給動詞的適當形式填空：1. _ _ the computer _ (什么時什么時候發明的候發明的)？2. _ was the car _ _ (誰發明的誰發明的)？3. a pen _ _ _(用來做用來做) writing.4. what do you think is _ _ _ _ (最有幫助的發明最有幫助的發明

26、)？5. he said the fish was _ _ (足夠咸足夠咸)。when was is used for invention the most helpful salty enoughwhoinvented byinventediii. 根據漢語完成句子：根據漢語完成句子：explanation 1. its used for scooping really cold ice cream. be used for 意為意為“被用來被用來”,強調用途或作用。強調用途或作用。e.g. the duster is used for cleaning the rooms. be used

27、 as 意為意為”被當作被當作來用來用”，強調被當作，強調被當作工具或手段來用。工具或手段來用。 be used by 意為意為“被被使用，強調使用者。使用，強調使用者。e.g. the big box is used as a table. the car is used by our manager. 2. shoes with adjustable heels were invented by(1) with 是介詞，意為是介詞，意為”“”“具有，持有，帶有具有，持有，帶有”。e.g. a girl with long hair a house with a blue roof(2) a

28、djustable意為意為“可調整的，可調節的可調整的，可調節的”。e.g. i have a pair of shoes with adjustable heels.(3) invent是動詞，意為是動詞，意為“發明，創造發明，創造”。e.g. edison invented the light bulb. invention是名詞，是名詞，“發明，發明物發明，發明物”e.g. edison had about 2,000 inventions during his lifetime.3. battery-operated slippers were invented by operate用法：用法：(1) “操作操作”e.g. can you operate the computer?(2)“起作用，見效果起作用，見效果” e.g.the sleeping pill operated at once.(3)“經營，管理經營，管理”e.g.the company operates ten factories.(4)“動手術動手術”e.g.the d