1、To learn the present perfect passive voiceTo use the present perfect passive voice to do some exercises现在完成时的被动语态Lead-in You have slain an enemy.Your team has destroyed the turret.slay slew-slainhave/has donehave/has been doneAn ally has been slain.An enemy has been slain.You have been slain.Your tu
2、rret has been destroyed.现在完成时现在完成时的被动语态(主动)We have built many houses in the past ten years.(被动)1.只带有一个宾语的动词变为被动语态时，将主动语态只带有一个宾语的动词变为被动语态时，将主动语态的宾语变为被动语态的主语。的宾语变为被动语态的主语。Many houses have been built in the past ten years.SVO(主动)I have played the game,Glory of Kings,for 10 hours.(被动)The game,Glory of K
3、ings,has been played for 10 hours.2.带有双宾语的动词，如等，变为被动语态时，一般将间接宾语带有双宾语的动词，如等，变为被动语态时，一般将间接宾语（人）变为被动语态的主语，若将直接宾语（物）变为被动语态的（人）变为被动语态的主语，若将直接宾语（物）变为被动语态的主语时，间接宾语前面要用相应的介词。主语时，间接宾语前面要用相应的介词。We have given him the book.(间接宾语提前)(直接宾语提前)He has been given the book.The book has been given to him.give,send,bring
4、,take,teach,show,tell,make,sing,write,read,sell,buy,pay,lend,pass,promiseSVOO=We have given the book to him.双宾易位The machine has been repaired.The machine is being repaired now.(动作_进行)The machine was repaired yesterday.(动作发生在_)使用现在完成时的被动语态要注意的问题:1现在完成时的被动语态、现在进行时的被动语态及一般过去时的被动语态的区别 正在正在过去过去已经修好了已经修好了
5、动作发生在过去，对现在造成的影响工程已开始三个月了。The project has been started for three months.The project has been on for three months.2非延续性动词非延续性动词，如borrow,finish,begin,start,buy,marry,open,join等构成的现在完成时的被动语态不能不能与表示一段时间的状语连用。若要表达相应的意思，则要改换动词或时态，例如：常与现在完成时连用的时间状语有：常与现在完成时连用的时间状语有：already 已经 yet 已经recently/lately 最近 since
6、 then 从那时起ever since 自那以来 ever 曾经so far 迄今为止 by now 到现在为止for a long time 很长一段时间in recent years 在最近几年里in/during/over the past/last years 在过去的几年里现在完成时的被动语态现在完成时的被动语态3.现在完成时的主动语态变被动语态现在完成时的主动语态变被动语态 只带有一个宾语的动词变为被动语态时，将主动语态的宾语变为被动语态的主语。例：Tom has sold out all the magazines.All the magazines have been sol
7、d out by Tom.带有双宾语的动词，如give,send,bring,take,teach,show,tell,make,sing,write,read,sell,buy,pay,lend,pass,promise等，变为被动语态时，一般将间接宾语变为被动语态的主语，若将直接宾语变为被动语态的主语时，间接宾语前面要用相应的介词。We have given him the book.He has been given the book.The book has been given to him.现在完成时的被动语态现在完成时的被动语态 带有复合宾语的动词变为被动语态时，只能将宾语变为主
8、语，原来的宾语补足语变为主语补足语。例：After decorating the Amber Room with jewels,the artists have made it more splendid.After being decorated with jewels,the Amber Room has been made more splendid.注意：带有复合宾语的动词变为被动语态时，若宾语补足语为省略to的不定式充当时，在被动语态中需将省掉的to加上。例：The boss has made his company offer more chances for people to work.His company has been made to offer more chances for people to work.动词短语是一个不可分割的整体，在被动语态中要保持其完整性，其中的介词或副词不可省略。例：Its said that the problem has been looked into.现在完成时的被动语态现在完成时的被动语态
