【人教版】高中英语必修二：Unit3-Computers-learning-about-languageppt课件

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,*,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,*,2017-2018,学年,【人教版】高中英语必修二全套精品课件,2017-2018学年【人教版】高中英语必修二全套精品课件,Unit 3,learning about language,Computers,Unit 3learning about languageC,Discovering useful words and expressions,complete change in ways of thinking,working,etc,connected computer system,to make things easier,to find the answer using numbers,can be moved easily from place to place,revolution,network,simplity,caculate,mobile,Discovering useful words and e,complete,explore,web,technology,artificial,application,intelligent,logicall,reality,completeexplore,Discovering useful structures,A new PC has been bought.,My computer has been repaired quickly.,My computer has been attacked.,The problem has not been solved yet.,The companys computers have been given away.,A kind of intelligent robot has been developed.,Discovering useful structuresA,现在完成时的被动语态表示动作发生在过去,到现在已经完成或对现在仍有影响,其构成是,:,have/has been+done,。,The dirty clothes have been washed.,脏衣服都已经洗了。,The plan has been studied by the experts for three times.,这项计划已经由专家研究过三次了。,现在完成时的被动语态表示动作发生在过去,到现在已,现在完成时被动态：,have/has+been+,动词过去分词,现在完成进行时：,have/has+been+,动词现在分词,现在完成时被动态与现在完成进行时的比较：,现在完成时被动态：现在完成时被动态与现在完成进行时的比较：,它们的构成的区别在最后的动词上,被动态接的是过去分词形式,现在完成进行时接的是现在分词形式。,The Temple of Zhang Fei has been rebuilt.,张飞庙已经过重建。,1.,主语是行为动作的承受者。,它们的构成的区别在最后的动词上,被动态接的是过去分词形式,The door has been locked.,门已经被锁上了。,（我或别人现在进不去）,2.,说话时已经完成的动作或出现的结果。,The door has been locked.（我或别,He has been told about it for,many times.,有人告诉他这事很多次了。,（可能还会有人告诉他）,3.,动作或状态始于过去，持续到现在，并可能持续下去。,He has been told about it,Well start as soon as the work,has been finished.,工作一完成我们就立即动身。,4.,用在时间和条件状语从句中，表示将来某时已完成的动作。,Well start as soon as the,often,usually,always,never,hardly,seldom,等副词置于,have/has,和,been,中间。,误,Such a man has been hardly,believed.,正,Such a man has,hardly,been,believed.,注意：,1.,副词的位置,often,usually,always,never,happen,take place,break out,belong to,cost,last,等不及物动词或词组无被动,语态。,误,Great changes have been taken,place in China since 1978.,正,Great changes have,taken place,in China since 1978.,2.,并不是所有动词都有被动语态,happen,take place,break out,2)open,break,drop,等不强调动作发出者时常用主动语态。,误,The door has been opened,of itself.,正,The door has,opened,of itself.,2)open,break,drop等不强调动作发出者时,The SARS patients have been taken good care of.,3.,短语动词不可分割或省略其中的介词或副词,The SARS patients have been ta,如,borrow,finish,begin,buy,start,return,marry,open,join,等构成的现在完成时的被动语态不能与表示一段时间的状语连用。若要表达相应的意思，,则需改换动词或时态。,4.,一些特殊动词,如borrow,finish,begin,buy,s,My brother has had(,不能用,has bought)this bike for almost four years.,How long has this book been bought?,How long ago was this book bought?,My brother has had(不能用has bo,1,.-How long _ at this job?,-Since 1990.,A.were you employed,B.have you been employed,C.had you been employed,D.will you be employed,1.-How long _ at this,2,.When and where to go for the on-salary holiday _ yet.,A.are not decided,B.have not been decided,C.is not being decided,D.has not been decided,2.When and where to go for th,3,.Hi,Tom,you look tired.,-,Of course.I _ the living room all day.,A.had painted,B.painted,C.have been painted,D.have been painting,3.Hi,Tom,you look tired,4,.Millions of pounds worth of damage_ by a storm which swept across the north of England last night.,A.has been caused,B.had been caused,C.will be caused,D.will have been cause,4.Millions of pounds worth o,5,.Have you ever_ to the exhibition which _for three weeks?,A.gone;has been shown,B.visited;shown,C.been;has been on show,D.went;lasted,5.Have you ever_ to the exh,A personal computer has bought by us.,2.Many problems has been found with our new computer.,been bought,have,改错。,A personal computer has bough,3.A PC has been builded the way we wanted.,4.Our computer just has,been joined to the internet.,built,has just,3.A PC has been builded the w,