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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
5、物动词的)过去分词 一般现在时一般现在时一般过去时一般过去时am (is,are)+donewas(were)+done情态动词+be+done情态动词情态动词The passive voice.被动语态被动语态主动语态变为被动语态的步骤主动语态变为被动语态的步骤:1.把原主动句中的宾语转换为被动语态的主语.2.2.把动词改为被动形式,即“be+过去分词”.注意 be3.动词要按新的主语的人称和数进行变化,时态要和原来4.的主动语态的时态保持一致.5.3.原来主动语态句中的主语,如果需要,就放在by后面6.以它的宾格形式出现.如果没有必要就可以省略.其他的7.成分(定语,状语)不变,句式也不能
6、变.The passive voice.被动语态被动语态主动语态变被动语态的结构图主动语态变被动语态的结构图:Bell invented the telephone in 1876.The telephone was invented by Bell in 1876.主语谓语动词过去时宾语时间状语主语谓语动词的过去分词宾语时间状语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.wasby用所给动词的正确形式填空：用所给动词的正确形式填空：1)The bike _(fix)up by
7、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 allowed就下列句子的画线部分提问：就下列句子的画线部分提问：1.Q:_ A:The stove was invented in 1896.2.Q:_
8、A:The Wright brothers invented the plane.3.Q:_ A:The washing machine is used for washing clothes.When was the stove invented?Who invented the plane?What is the washing machine used for?就下列句子的画线部分提问：就下列句子的画线部分提问：4.Q:_ A:The helicopter was invented in 1939.5Q:_ A:The washing machine was invented by Fisher.When was the helicopter invented?Who was the washing machine invented by?