Unit 9 When was it invented1

单击此处编辑母版标题样式,*,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,When was it invented?,发明使人类由黑暗走向光明。,神七飞天,U,nit,9,When was it invented?,Explain,Aims,Exercise,Practice,Listening,When was it invented?,课时目标:,1.学会运用一般过去时的被动语态。,2.了解一些伟大发明的历史。,3.训练我们的口语和听力能力。,light,bulb,invention,Edison,inventor,Edison,invent,ed,the light bulb.,The light bulb,was invent,ed,by,Edison.,Bell,invented,the telephone.,_,was invented,by,_.,The telephone,Bell,Karl Benz,invented,the car.,_,was invented,by,_.,The car,Karl Benz,1,2,3,4,5,Listening(1b:P68),1876,1885,1927,1971,1976,A,:Who was the _ invented by?,B,:It was invented by _.,Revision,Carl Benz,Bell,Revision,A,:Who were the _ invented by?,B,:They were invented by _.,Edison,Pairwork,(1c:P68),1976,1885,1876,1927,(A chant),Inventions,inventions,inventions,Lets talk about inventions!,The computer,computer,computer,When,was,it invent,ed,?,The computer,computer,computer,was,invent,ed,in 1976.,The calculator,calculator,calculator,When,was,it invent,ed,?,The calculator,calculator,calculator,was,invent,ed,in 1971.,The television,television,television,When was it,invent,ed,?,The television,television,television,was,invent,ed,in 1927.,The motorcar,motorcar,motorcar,When,was,it invent,ed,?,The motorcar,motorcar,motorcar,was invent,ed,in 1885.,The telephone,telephone,telephone,When,was,it invent,ed,?,The telephone,telephone,telephone,was,invent,ed,in 1876.,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,am (is,are)+done,was(were)+done,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.,This car is made in American.,2.,不必要说出动作执行者时,常用,.,eg,.Rome was not built in a day.,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,主动语态变为被动语态的步骤,:,把原主动句中的宾语转换为被动语态的主语,.,2.,把动词改为被动形式,即,“,be+,过去分词”,.,注意,be,动词要按新的主语的人称和数进行变化,时态要和原来,的主动语态的时态保持一致,.,3.,原来主动语态句中的主语,如果需要,就放在,by,后面,以它的宾格形式出现,.,如果没有必要就可以省略,.,其他的,成分,(,定语,状语,),不变,句式也不能变,.,The passive voice.,被动语态,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,主动语态改被动语态,:,Bell,invented,the telephone,in 1876.,was,by,用所给动词的正确形式填空：,1)The bike _(fix)up by 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 fixed,are used,is put,is spoken,be allowed,就下列句子的画线部分提问：,1.Q:_,A:The stove was invented,in 1896,.,2.Q:_,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：,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?,