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,*,*,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,*,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,*,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,*,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,*,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,*,基于情境的英语语法教学,第十一章 动词的语态,现在完成时的被动语态,6.,The Present Perfect,Passive Voice,基于情境的英语语法教学第十一章 动词的语态,What has changed in the classroom?,guessing game,lead in,What has changed in the classr,have/has beendone(过去分词),1.,The lights,have been turned off.,2.The blackboard,has been cleaned.,3,.The door,has been,closed,.,4,.The windows,ha,ve,been,opened,.,5,.The floor,has been,cleaned,.,have/has beendone(过去分词)1.,现在完成时表示动作,发生在过去,到,现在已经完成,或,对现在仍有影响,。,注：现在完成时,past,present,future,标志词：,already,，,so far,，,yet,，,lately/recently,，,these days/years/weeks,，,since+,时间点，,for+,时间段等。,现在完成时表示动作发生在过去,到现在已经完成或对现在仍有影,现在完成时,的被动语态,强调一个,发生在过去,的,被动性,动作持续到现在或对现在造成的影响或结果。,其构成是,:,have/has been+done,。,例如：,1.The dirty clothes have been washed.,脏衣服都已经洗了。,2.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,现在完成时的被动语态强调一个发生在过去的被动性动作持续到,Can you make more sentences,using“,have/has been done,”?,Practice I,Can you make more sentences,Tall buildings,(build)everywhere.,have been built,Tall buildings have been built,Shopping centers,(build),.,ha,ve,been,built,Shopping centers,Some factories,(set up)to improve economies.,ha,ve,been,set up,economy knm,n.经济；节约；理财,Some factories,The road,_,(widen).,has been widened,The road _(w,M,ore dustbins,(place)on the streets,.,dust,灰尘,bin 箱子，容器；,dstbn,ha,ve,been,plac,ed,More dustbins,M,ore,and more trees and flowers,(pla,nt,)on the,either side of the roads,.,ha,ve,been,plant,ed,More and more trees and flower,improve memory,improve memory,Tall buildings,(build)everywhere.,have been built,Tall buildings have been built,Shopping centers,(build),.,ha,ve,been,built,Shopping centers,Some factories,(set up)to improve economies.,ha,ve,been,set up,Some factories,The road,_,(widen).,has been widened,The road _(w,M,ore dustbins,(place)on the streets,.,ha,ve,been,plac,ed,More dustbins,M,ore,and more trees and flowers,(pla,nt,)on the,either side of the roads,.,ha,ve,been,plant,ed,More and more trees and flower,Practice,II,：,Correct the sentences,1.Great changes have been taken place in my hometown.,2.M,any measures(,措施,),have,taken.,3.Citizens have been request not to throw rubbish and litter everywhere.,requested,4.The number of cars have been limited to reduce our pollution.,has,5.More and more people has sensed the importance of the environment protection.,have,6.People have became,responsible for building a beautiful hometown.,become,been,Practice II：Correct the senten,I used to live in a small town with trees around.There were no tall buildings and the streets were narrow.But in recent years,great changes,(take place)in my hometown.,Great Changes in My Hometown,have taken place,I used to live in a sma,Tall buildings,(build)everywhere as well as shopping centers.Also some factories,(set up)to improve economies.Roads,(widen).,In order to keep the city clean and tidy,many measures,(take).,have been built,have been set up,have,been widened,have,been taken,Tall buildings,Citizens,(request)not to throw rubbish and litter everywhere.Therefore,more dustbins,(place)on the streets.More and more trees and flowers,(plant)on the hills and either side of the roads.,have been requested,have been placed,have been planted,Citizens,In addition,the number of cars,(limit)to reduce our pollution.More and more people,(sense)the importance of the environment protection and,(become)responsible for building a beautiful hometown in a few years.,has,have sensed,have become,been limited,In addition,the number of c,memory challenge,memory challenge,I used to live in a small town with trees around.There were no tall buildings and the streets were narrow.But in recent years,great changes,(take place)in my hometown.,Tall buildings,(build)everywhere as well as shopping centers.Also some factories,(set up)to improve economies.Roads,(,widen).,In order to keep the city clean and tidy,many measures,(take).,Great Changes in My Hometown,I used to live in a small,Citizens,(request)not to throw rubbish and litter everywhere.Therefore,more dustbins,(place)on the streets.More and more trees and flowers,(plant)on the hills and either side of the roads.In addition,the number of cars (limit)to reduce our pollution.More and more people,(sense)the importance of the environment protection and,(become)responsible for building a beautiful hometown in a few years.,Citizens,How has the place changed?,Use these words:,add,change,open,paint,put,turn on,take away,The window,The cap,The light,The basketball,The sweater,The painting,Two chairs,The books,The dishes,have/has be