九年级英语When_was_it_invented section A免费.ppt
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1、 Unit 9When was it invented?发明使人类由黑暗走向光明。inventorEdisoninventionlight bulbEdison invented the light bulb.The light bulb was invented by Edison.Bell invented the telephone._ was invented by _.The telephoneBellKarl Benz invented the car._ was invented by _ .The carKarl BenzMake conversations:A:Ithink
2、the telephone was invented before the car.B:I agree.I think the calculator was inverted after TV1a-number the pictures calculatorListening(1b:P68)18761885192719711976 A:When was the computer invented B:It was in vented in 1976.n1976Pairwork(1c:P68)Pairwork(1c:P68)1885Pairwork(1c:P68)1927Pairwork(1c:
3、P68)1876Pairwork(1c:P68)1971 name?-when?-who?Lets look and talkA:When was the car invented?B:It was invented in 1885 A:Who was it invented by?B:It was invented by Karl Benz.Karl Benz.car1885 light bulb name?-when?-who?Lets look and talk B:It was invented in 1879 A:Who was it invented by?B:It was inv
4、ented by Edison.Edisonlight bulblight bulb A:When was the light bulb invented?Lets look and talk1879Beld1927Tv setWhen,who,Pair work 11971Kelifcalculator When,who,Pair work 2The passive voice.被动语态被动语态 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.被动语态的被动语态的构成构成:助动词be+(及
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