现在完成时被动语态课件.ppt

《现在完成时被动语态课件.ppt》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、冬天已经来了，春天还会远吗？Ifwinterhasalreadycome,canspringbefaraway?1helphelpedhelpedV原形过去式过去分词2changechangedchanged3studystudiedstudied4planplannedplannedbegbeggedbeggedstopstoppedstopped5givegavegiven动词的过去式和过去分词规则：1+ede+dyi+ed重读闭音节，末尾只有一个辅音字母，双写辅音字母+ed动词的过去式和过去分不

2、规则复习：写出下列动词的过去式和过去分词helpchangestudyplanbegstopgive5Thissong___often____(sing)bychildrenThesebooks___often______(borrow)bygirls.1一般现在时(simplepresenttense)的被动语态：S(主语）+am/is/are+done(过去分词)Thesportsmeeting________(hold)inourcitylastyear.2一般过去时(simplepastten

3、se)的被动语态：S+was/were+done(过去分词)issungareborrowedwasheld复习各时态（tense)的被动语态(passivevoice)：Manybuildings_____________(build)inmyhometowninthefuture.4一般将来时(futuretense)的被动语态：S+willbe+donewillbebuilt复习各时态（tense)的被动语态(passivevoice)：现在完成时(presentperfecttense)的被动

4、语态：S+have/has+been+done(过去分词)1OvertimeIhavebeenchangedquitealot.2FirstasaPCandthenasalaptopIhavebeenusedinofficesandhomessincethe1970s.3…IneverforgetanythingIhavebeentold!4Sincethe1970smanynewapplicationshavebeenfoundforme.5Ihavealsobeenputintorobotsand

5、usedtomakemobilephones…6IhaveevenbeenputintospacerocketsandsenttoexploretheMoonandMars.Discoveringusefulstructuresfromthepassageonp18:现在完成时的被动语态：thepresentperfectpassivevoiceS+have/hasbeen+done(过去分词)现在完成时的被动语态表达以下两个概念：1.说话时已经完成的动作或出现的结果，2.主语是行为动作的承受者。在使

6、用现在完成时的被动语态时要注意以下两点：过去分词前有两个助动词have/has和been。2.必须表示被动。Ihavebeentoldaboutitmanytimes．Thebridgehasjustbeenbuilt．1.现在完成时被动语态肯定句句型：主语+have/hasbeen+过去分词Herbikehasbeenstolen.2.现在完成时被动语态否定句句型：主语+have/has+not+been+过去分词Thetaskhasnotbeenfinishedyet.Manyskilledwor

7、kershavenotbeentrainedinthecompany.Thepresentperfectpassivevoice(肯定句、否定句:3.现在完成时被动语态一般疑问句句型：Have/Has+主语+been+过去分词...?Hasanewcomputerbeenbought?HavetheybeensentabroadtostudyEnglish?4.现在完成时被动语态特殊疑问句句型：疑问词+have/has+主语+been+过去分词...?Wherehasthecarbeenrepaire

8、d?Whohavebeenhelpedbythenewcomputer?Howmanybuildingshavebeenbuiltinthisschool?Thepresentperfectpassivevoice(疑问句）:Workershavebuiltthehousesincetwoyearsago.sincetwoyearsago.Exercise1:Changethesentencesintothepresentperfectpassivevo