九年级英语新目标上unitwhenwasitinvented.ppt

Unit 9 When was it invented?,,,,When was it invented ?,Unit 9,Period 1,Four ancient inventions,compass,gun powder,Moveable type printing,paper,calculator,inventions,microwave oven,,light bulbs,inventions,high heels,adjustable heels,,adjustable 可调整的,,inventions,ice cream scoop,heat 加热,scoop,,,,,inventions,slippers,a battery,batteries,,,operate 操作,,inventions,A: When was the car invented? B: Well, I think it was invented in ….,Guess,1885 1876 1927 1971,,,A: When was the telephone invented? B: Well, I think it was invented in ….,Guess,1885 1876 1927 1971,,,Look at the things. In what order do you think they were invented?,1a,A: I think the calculator was invented before the computer. B: Well, I think the calculator was invented after the computer.,A: I think … was invented before … B: Well, I think … was invented after ….,,game,A: I think … was invented before … B: Well, I think … was invented after ….,,game,A: I think … was invented before … B: Well, I think … was invented after …,,game,A: I think … was invented before … B: Well, I think … was invented after …,,game,1b,Listen and match the inventions with the dates.,a,b,e,d,c,1876___ 1885___ 1927___ 1971___ 1976___,,,,,,d,a,b,e,c,,A: When was the _______ invented? B: I think it was invented in ______.,Pairwork (1c:P68),1976,1885,1876,1927,1971,1879,,Edison invented the light bulb.,The light bulb was invented by Edison.,Who was the light bulb invented by?,The telephone by Bell.,was invented,Who was the telephone invented by?,Bell invented the telephone.,______ was invented by _______.,The car,Karl Benz,Who was the car invented by?,Karl Benz invented the car.,The passive voice.,被动语态,英语中动词有主动语态和被动语态两种语态. 主动语 态表示主语是动作的执行者,被动语态表示主语是动作的 承受者, 在被动语态中动作的执行者有时用by短语表示 出来.,被动语态的构成:,助动词be+ (及物动词的) 过去分词,一般现在时,一般过去时,The passive voice.,(被动语态),被动语态的用法:,不知动作执行者时,常用被动语态. eg. My bike was stolen yesterday. 2. 不必要说出动作执行者时,常用. eg. The car was invented in 1885. 3. 为了突出强调动作的承受者时,常用被动语态. eg. Thousands of beaches are polluted (污染).,The passive voice.,被动语态,主动语态改被动语态:,Bell,,invented,the telephone,in 1876.,was,by,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,A: What is the used for? B: I think it is used for _______. (count),counting,A: What is the used for? B: I think it is used for ________.(work),,working,A: What is the used for? B: I think it is used for _____.(ride),riding,A: What is the _______ used for? B: It is used for __________.,counting,(count),A: What is the used for? B: It is used for ___________.(count),counting,A: What is the used for? B: It is used for ___________. (watch the things far away clearly),,watching the things far 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 in… A: Who was it invented by? B: It was invented by… A: What is the … used for? B: The … is used for doing…,pairwork,Revision:Writing,1.We use the ________to count.,The calculator____________,calculator,is used for counting.,The microwave oven_________ ________________,2.We use ___________________to make the food hot.,the microwave oven,is used for,3.The _______is used for _______________. (talk with people),talking with people,telephone,making the food hot.,4. Who_____light bulbs_________by? 5.The computer________________ 1976.,were,invented,was invented in,Who were they invented by? What are they used for?,adjustable 可调整的,operate 操作,heat 加热,2a,Listen and number the inventions in the order that you hear.,3,1,2,,,,,,,Listen again. Match the inventions with their inventors and uses.,2b,3a.PAIRWORK,PAIRWORK,,,Sample dialogue 1: A：What do you think is the most helpful invention? B：I think the most helpful invention is the light bulb. A：Why is that? (Why do you think so?) B：Well, it gives people more time to work and play every day.,,3b.PAIRWORK,,,Sample dialogue 2: A: What do you think is the most helpful invention? B: I think the most helpful invention is the car. A: Why is that? B: Well, it makes it possible for people to move to distant places faster.,,3b.PAIRWORK,,,Sample dialogue 3: A: What do you think is the most annoying invention? B: I think the most annoying invention is the atomic bomb. A: Why is that? B: Well, it gives people more power to kill others.,,3b.PAIRWORK,,Sample dialogue 4: A: What do you think is the most annoying invention? B：I think the most annoying invention is the alarm clock. A：Why is that? (Why do you think so?) B ：Because it wakes me up when I’m sleeping.,,3b.PAIRWORK,,Groupwork (4: P70),What would you do if 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 the island with you. Tell the group what you chose and why. Then give a report.,I’d like to have a …because I could… It’s used for… I think the most helpful invention is … But that’s not 。