九年级unit9.ppt

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,*,Unit 9,When was it invented?,Section A,Inventions,发明,Talk about the history of inventions.,The passive voice.,Language Goals:,Grammar Focus:,1c,PAIRWORK,1b,Listen and match the inventions,with the dates.,a,b,e,d,c,1876,1885,1927,1971,1976,d,a,b,e,c,1c,PAIRWORK,When,was,the telephone,invented,?,I think it,was invented,in 1876.,be invented,被发明,be invented in,于哪一年发明,1876,1885,1927,1971,1976,When,was,the car,invent,ed,?,It,was,invent,ed,in,1885,.,battery-operated,slippers,heated,ice cream scoop,shoes with adjustable heels,电池供电,的拖鞋,加热的,冰激凌勺,可调节,后跟的鞋,2a,Listen and number the inventions in,the order that you hear.,3,1,2,2b Listen again.Match the inventions with their inventors and uses.,Invention,shoes with adjustable heels,battery-operated slippers,heated ice cream scoop,Who was it/were they invented by?,Chelsea,Lanmon,Jayce,Coziar,and Jamie Ellsworth,Julie Thompson,What is it/are they used for?,scooping really cold ice cream,seeing in the dark,changing the style of the shoes,2b,PAIRWORK,Who,was,it/,were,they,invented,by,?,It,was,/They,were invented by,Chelsea,Lanmon,.,be used for doing,sth,.,被用于,be used to do,sth,.,eg,The kind of machine is used for,cutting paper.,The kind of machine is used to cut paper.,A:When,was,the telephone,invented,?,B:It,was invented,in1876.,A :Who,was,it,invented,by,?,B:It,was invented by,Bell.,PAIRWORK,calculator,1985,Henry Ford,1971,1885,1907,Wright,Cray,Bill Hewlett,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,The passive voice.,被动语态,主动语态变为被动语态的步骤,:,1.,宾语转换为主语,.,2.,把动词改为被动形式,即,“,be+,过去分词”,（注意：句式，时态与原句保持一致）,3.,如果需要,原主语就放在,by,后面,练习一 请把下列的主动句变为被动句（注意时态的一致）,1 He wrote an article last week.,An article was written by him last week.,2 The people make history,.,History is made by people.,3 Do people use Chinese only in China?,Is Chinese used by people only in China?,4 They didnt visit the city two years ago.,The city wasnt visited by them two years ago.,Review key phrases,be invented,be invented in,be invented by,be used,be used for doing,be used to do,Review,被动语态,主动语态变为被动语态的步骤,:,1.,宾语转换为主语,.,2.,把动词改为被动形式,即,“,be+,过去分词”,（注意：句式，时态与原句保持一致）,3.,如果需要,原主语就放在,by,后面,GoodBye!,