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1、Unit 3 TensesTensesthe present perfect the present perfect passive viocepassive vioceWhat do you know the present perfect passive vioce?Lead-inlearning aims:1)Look at the following content in exercise about“现在完成时的被动语态”on book P35.2)To find out the concept and basic structure of“现在完成时的被动语态”.3)To find
2、 out the key and difficult points.4)To find out the points you dont understand.We have finished the homework.The homework has been finished by us.Many visitors have visited the Great Wall.The Great Wall has been visited by many visitors.Mike has seen two films since last month.Two films have been se
3、en by Mike since last month.The Russian government has turned these palaces into museums.These palaces have been turned into museums by the Russian government.现在完成时的被动语态的结构现在完成时的被动语态的结构1.肯定句The streets are clean,and many homes have been rebuilt.So far the novel has been translated into five language
4、s.现在完成时的被动语态的肯定句的基本结构是：主语主语+have/has been done+其他其他现在完成时的被动语态的结构现在完成时的被动语态的结构1.否定句The bike hasnt been repaired yet.She hasnt been heard from since then.现在完成时的被动语态的否定句的基本结构是：主语主语+have/has not been done+其他其他现在完成时的被动语态的结构现在完成时的被动语态的结构1.一般疑问句Havethese clothes been washed?Yes,they have.Has our dinnerbeen
5、 cooked?No,it hasnt.现在完成时的被动语态的一般疑问句的基本结构是：Have/Has+主语主语+been done+其他其他现在完成时的被动语态的结构现在完成时的被动语态的结构1.特殊疑问句How long has your computer been used?How many new words have been learned by the students?现在完成时的被动语态的一般疑问句的基本结构是：特殊疑问词特殊疑问词+have/has+主语主语+been done+其他其他使用现在完成时的被动语态的需要注意的问题使用现在完成时的被动语态的需要注意的问题1.注意
6、与一般过去时的被动语态的区别。2.副词的位置 3.并不是所有的动词都有被动语态。4.open，break，drop等不强调动作发出者时常用主动语态5.动词短语的现在完成时的被动语态中，不可分割或省略其中的介词或副词。Test Do some exercises and write sentencesAnswers:1.have been resued2.have been talked3.has been locked4.Has been translated5.has been putAnswers:1.The construction of the new railway lines ha
7、s been finished by them by now.2.A new library and a gymnasium have been built in our school by us this year.3.A great many fine cars have been produced by the car factory since the technological revolution.4.A plan to help the door children in the poor area has been made by them.5.A lot of money ha
8、s been spent on the Hope Project by the government.Homework：1.review what you have learned 2.recited them and dictate them to hand in your group monitor 3.write your mistakes in relevant notebook 4.do all the rest exercises in class 5.do all the exercises in exercise book and if possible review next classThanks