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,*,The Fourth Period,Grammar and Writing,Active and Passive Voice,Voice,语态,英语中语态分为主动语态及被动语态,Active Voice,主动语态,The student wrote a song,.,Passive Voice,被动语态 be done,A song was written by the student.,Changing a sentence from the active voice to the passive voice involves 3 steps:,1.把主动语态中句子的直接宾语做为被动语态的主语.,2.把原主动语态的主语改成宾格移到句末,用by连接(也可省略）.,3.改变动词.,Changing the verb involves three steps:,1.确定原句时态，改成相应的be动词时态;,2.把原动词改为过去分词，放在相应的be动词时态后，,3.检查新的动词和新的主语主谓是否一致,We/design/the car(s),Forming Tenses of Passive Verbs,Tense,Subject,Auxiliary,Past Participle,Singular,Plural,Present,The car/cars,is,are,designed.,Present perfect,The car/cars,has been,have been,designed.,Past,The car/cars,was,were,designed.,Past perfect,The car/cars,had been,had been,designed.,Future,The car/cars,will be,will be,designed.,Future perfect,The car/cars,will have been,will have been,designed.,Present progressive,The car/cars,is being,are being,designed.,Past progressive,The car/cars,was being,were being,designed.,a,.,He,will plant,more trees,.,More trees,will be planted,by him.,b.,She,will take care,of the children.,The children,will be taken care of,by her.,Practice:,1.Beijing will hold the 29th Olympic Games,in the year 2008,.,The 29th Olympic Games will be held in Beijing,in the year 2008,.,When will the 29th Olympic Games be held in Beijing?,The Future Passive Voice,They,will discuss,this problem at their next conference.,This problem,will be discussed,at their next conference.,一般将来时的被动语态:,shall/will+be+v.p.p,will be built,e.g.A new car factory _(build)in our city.,Rules for the Olympic Games,Nobody _(allow)to enter the stadium without a ticket.,Children_(not allow)to make a noise and upset the competitors.If they do,they will_(take away)from the stadium.,No animals _(allow)in the stadium.They _(leave)in the garden.,Cheating by athletes will not be_(excuse).,They _(tell)to leave.,No smoking will be _(allow).If you are discovered,you_(ask)to pay ten dollars,will be allowed,will not be allowed,be taken away,will be allowed,will be left,will be told,allowed,will be asked,excused,Make sentences using the passive voice,.,The basketball game will be played tomorrow.,Trees are being planted.,The olympic games will be held in Beijing in 2008.,Preparations:,1.More and more trees and grass will be planted.2.More streets should be widened.3.More hotels will be offered to the foreigners.4.The public will be encouraged to speak English.5.More volunteers will be inspired to make a contribution to the Olympic Games.,Thank You,