九年级英语新目标上unit9-when-was-it-invented课件.ppt
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1、Unit 9 When was it invented?Period 1Four ancient inventionscompassgun powderMoveable type printingpapercalculatormicrowave ovenlight bulblight bulbs shigh heelsadjustable heelsadjustable 可调整的可调整的ice cream scoop heat 加热加热scoopslippersa batterybatteriesoperate 操作操作A:When was the car invented?B:Well,I
2、think it was invented in.A.1885B.1876C.1927D.1971A:When was the telephone invented?B:Well,I think it was invented in.A.1885B.1876C.1927D.1971Look at the things.In what order do you think they were invented?1aA:I think the calculator was invented before the computer.B:Well,I think the calculator was
3、invented after the computer.A: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.A: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 1bListen and mat
4、ch the inventions Listen and match the inventions with the dates.with the dates.abedc1876_1885_1927_1971_1976_dabecA:A:When When waswas the _ the _ inventedinvented?B:I think it B:I think it was inventedwas invented in in _._.Pairwork Pairwork(1c:P68)(1c:P68)197618851876192719711879Edison invented t
5、he 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 telephone invented by?by?Bell invented the telephone._ was invented by _.The carKarl BenzWho was the ca
6、r invented Who was the car invented byby?Karl Benz invented the car.The passive voice.被动语态被动语态 英语中动词有英语中动词有主动语态主动语态和和被动语态被动语态两种语态两种语态.主动语主动语态表示主语是动作的执行者态表示主语是动作的执行者,被动语态表示主语是动作的被动语态表示主语是动作的承受者承受者,在被动语态中动作的执行者有时用在被动语态中动作的执行者有时用by短语表示短语表示出来出来.被动语态的被动语态的构成构成:助动词助动词be+(及物动词的及物动词的)过去分词过去分词 一般现在时一般现在时一般过去
7、时一般过去时am (is,are)+donewas(were)+doneThe passive voice.(被动语态被动语态)被动语态的用法被动语态的用法:1.不知动作执行者时不知动作执行者时,常用被动语态常用被动语态.2.eg.My bike was stolen yesterday.3.2.不必要说出动作执行者时不必要说出动作执行者时,常用常用.4.eg.The car was invented in 1885.5.3.为了突出强调动作的承受者时为了突出强调动作的承受者时,常用被动语态常用被动语态.6.eg.Thousands of beaches are polluted(污染污染).
8、The passive voice.被动语态被动语态主动语态改被动语态主动语态改被动语态:Bellinvented the telephone in 1876.wasbyA:What is the car used for?B:The car is used for traveling.A A:What is the _ What is the _ used for?used for?B:I think itB:I think it is used foris used for _.talking with peopleA:What is the used for?B:I think it i
9、s 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 A:What is the _ What is the _ used for?used for?B B:ItIt is used foris used for _._.counting(count)A:What is the used for?B:It is used for _.(cou
10、nt)countingA:What is the used for?B:It is used for _.(watch the things far away clearly)watching the thingsfar away clearly.A A:What is the _ What is the _ used for?used for?B B:It isIt is used for used for _making the food hot.(make the food hot)A:When was invented?B:It was invented inA:Who was it
11、invented by?B:It was invented byA:What is the used for?B:The is used for doing 1.We use the1.We use the _to count._to count.The calculator_calculatoris used for counting.The microwave oven_ 2.We use _to make the food hot.the microwave ovenis used for3.The _3.The _is used foris used for _._.(talk wit
12、h people)talk with people)talking with peopletelephonemaking the food hot.4.Who_light bulbs_by?5.The computer_ 1976.wereinventedwas invented inWho were they invented by?Who were they invented by?What are they used for?What are they used for?adjustable 可调整的可调整的operate 操作操作 heat 加热加热2aListen and numbe
13、r the inventions inthe order that you hear.312InventionWho was it/were they invented by?What is is/are they used for?shoes with adjustable heelsChelsea Lanmonscooping really cold ice creambattery-operated slippers Jayce Coziar and Jamie Ellsworth seeing in the darkheated ice cream scoopJulie Thompso
14、mchanging the style of the shoesListen again.Match the inventions Listen again.Match the inventions with their inventors and uses.with their inventors and uses.2bHelpful inventions Annoying inventions Example telephone Example alarm clock 1.1.2.2.3.3.4.4.5.5.Helpful inventionsAnnoying inventionsExam
15、ple:telephoneExample:alarm clock1.plane1.atomic puter2.chemical weapon3.bike3.mobile phoneSample dialogue 1:Sample dialogue 1:A A:What do you think is the most What do you think is the most helpfulhelpful invention?invention?B B:I think the most helpfulI think the most helpful invention is the light
16、 bulb.invention is the light bulb.A A:Why is that?(Why do you think Why is that?(Why do you think so?)so?)B B:Well,it gives people more time Well,it gives people more time to work and play every day to work and play every day.Sample dialogue 2:Sample dialogue 2:A:What do you think is the most A:What
17、 do you think is the most helpful helpful invention?invention?B:I think the most helpful invention B:I think the most helpful invention is the car.is the car.A:Why is that?A:Why is that?B:Well,it makes it possible for B:Well,it makes it possible for people to move to distant places people to move to
18、 distant places faster.faster.Sample dialogue 3:Sample dialogue 3:A:What do you think is the most A:What do you think is the most annoyingannoying invention?invention?B:I think the most annoying B:I think the most annoying invention is the atomic bomb.invention is the atomic bomb.A:Why is that?A:Why
19、 is that?B:Well,it gives people more power B:Well,it gives people more power to kill others.to kill others.Sample dialogue 4:Sample dialogue 4:A:A:What do you think is the most What do you think is the most annoyingannoying invention?invention?B B:I think the most annoying I think the most annoying
20、invention is the alarm clock.invention is the alarm clock.A A:Why is that?(Why do you think Why is that?(Why do you think so?)so?)B B:Because it wakes me up whenBecause it wakes me up when Im Im sleeping.sleeping.Groupwork(4:P70)Groupwork(4:P70)What would you do if you are What would you do if you a
21、re alone on a tiny island?alone on a tiny island?Imagine that you are alone on a tiny island.Imagine that you are alone on a tiny island.Choose one invention you would like to have on Choose one invention you would like to have on the island with you.Tell the group what you the island with you.Tell
22、the group what you chose and why.Then give a report.chose and why.Then give a report.Id like to have a because I couldIts used forI think the most helpful invention is But thats not going to help you leave the island.I think it would be better to have a/anyou can use the following sentences:.Sample
23、dialogue 1:Sample dialogue 1:A:A:Id like to have a radio because IId like to have a radio because I could listen to music all day.could listen to music all day.B B:Yes,but thats not going to help Yes,but thats not going to help you leave the island.I think it would you leave the island.I think it wo
24、uld be better to have a boat.Then you be better to have a boat.Then you can leave the island by boat.can leave the island by boat.A A:Possibly you are right.Possibly you are right.Sample dialogue 1:Sample dialogue 1:A:A:Id like to have a monkey because it Id like to have a monkey because it can pick
25、 some fruits for me.can pick some fruits for me.B B:Yes,but what if there isnt enough Yes,but what if there isnt enough fruit trees on the island?I think it fruit trees on the island?I think it would be better to have lots of food.would be better to have lots of food.Then you can have something to e
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