现在完成时的被动语态(1)学习资料.ppt
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1、现在完成时的被动语态(1)Teaching AimsnReview the Present Perfect TensenTalk about the Present Perfect Passive VoicenDo some exercises about the Present Perfect Passive VoicenSay thanks to persons who have helped you通过告知学生本课的通过告知学生本课的Teaching Aims,他们能够了解本节课的重点他们能够了解本节课的重点,在听课过在听课过程中合理安排时间程中合理安排时间,提高学习效率提高学习效率.O
2、bama has become the first African-American president in the United States of America.把听力作为导入把听力作为导入,一方面锻炼学生的听一方面锻炼学生的听力水平力水平,了解美国的政治体制了解美国的政治体制,最主要最主要的是引出本节课的重点的是引出本节课的重点-现在完成现在完成时态时态The Present Perfect TenseSentence structure:主语主语+have/has done现在完成时表示动作发生在过去现在完成时表示动作发生在过去,并持续并持续到现在或者是过去的动作对现在的影响到现在
3、或者是过去的动作对现在的影响.经常用于现在完成时的时间状语经常用于现在完成时的时间状语:recently,up to now,since then,so far,already,just,yet 等等.How many Harry Porter books has J.K.Rowling written?She has written seven Harry Porter books.Seven Harry Porter books have been written by J.K.Rowling.根据学生爱好,创设情境。通过求根据学生爱好,创设情境。通过求助的方式,提高学生的兴趣。同时,助的
4、方式,提高学生的兴趣。同时,可以引出本节课的中心可以引出本节课的中心-现在完成现在完成时的被动语态。时的被动语态。The Present Perfect Passive VoiceSentence structure:subject+have/has+been+doneIn what cases do we use the passive voice?1.不知道或没有必要说明的动作的执行者不知道或没有必要说明的动作的执行者是谁。是谁。2.强调动作的承受者,而不是发出者。强调动作的承受者,而不是发出者。Change the following sentences into active or p
5、assive voice.1.Liu Xiang has ever broken the world record.The world record has ever been broken by Liu Xiang.2.The floor has been cleaned by my mother.My mother has cleaned the floor.3.Yao Ming has been pushed over by a fat basketball player.A fat basketball player has pushed Yao Ming over.4.I haven
6、t cleaned the room for weeks.The room hasnt been cleaned by me for weeks.5.We have been invited to take part in his wedding.He has invited us to take part in his wedding.6.My father has given up smoking so far.Smoking has been given up so far.7.Someone has opened my bag.My bag has been opened by som
7、eone.8.All the letters have already been sent by the postmen.The postmen have already sent all the letters.通过大量的机械练习,帮助学生巩固通过大量的机械练习,帮助学生巩固所学内容。同时,学生之间可以提高所学内容。同时,学生之间可以提高团队合作的意识。团队合作的意识。Many old buildings _(pull down)and new fences_(build)in Shijiazhuang.have been pulled downhave been builtFill in
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