九年级英语when was it invented课件12

Unit 9 when was it invented?,Section A 2a-Grammer,Yesterday once more,往事重现,light bulb,invention,Edison,inventor,Edison invented the light bulb.,The light bulb was invented by Edison.,A: When was the _ invented?B: I think it was invented in _.,Pairwork (1c:P68),1976,1885,1876,1927,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,Julie Thompson,battery-operated slippers,Chelsea Lanmon,heated ice cream scoop,Jayce Coziar and Jamie Ellsworth,shoes with adjustable heels,2a,Listen and number the inventions inthe order that you hear.,3,1,2,2b,PAIRWORK,Who was it / were they invented by ?It was/ They were invented by Chelsea Lanmon.,pairwork,A:What are they used for?B: They are used for seeing in the dark.,2c,A:What are they used for?B:Theyre used for scooping really cold cream,2c,A:What are they used for?B:Theyre used for changing the style of the shoes.,2c,be used for doing sth. 被用来做某事 be used to do sth. used to do sth. 以前常做某事 be/get used to doing sth. 习惯做某事,Grammer focus,When was the car invented?It was invented in 1885When were electric slippers invented?They were invented last yearWho were they invented by?They were invented by Julie Thompson.What are the