会计学WhatisthePassiveVoice?英语动词有两种语态：主动语态(theActiveVoice)被动语态(thePassiveVoice)WespeakEnglish.当主语是动作的执行者时，动词用主动语态（theActiveVoice）Whentouseit?theStructureis：一般现在时：am/is/aredone一般过去时：was/weredone现在进行时：am/is/arebeingdone过去进行时：was/werebeingdone现在完成时：have/hasbeendone过去完成时：hadbeendone一般将来时：shall/willbedone;begoingtobedone当句中含有情态动词时，句子结构为can/must/haveto…bedone主变被解题步骤:1.把原来的宾语提到前面作被动语态的主语;2.把动词变成“be+过去分词”;3.主动语态中的主语变为介词by的宾语。练习：将下列主动语态改为被动语态句子。几种值得注意的被动语态变化（2）seesb.doingsth.sb.beseendoingsth.tellaskbringwritegivesendshowteachpasslendAnswerrightorwrong4.这辆自行车能修吗？Canthisbikemended?()Canthisbikebemended?()5.街道已由他们清理了。Thestreethasbeencleanedbythey.()Thestreethasbeencleanedbythem.()1).不及物动词没有被动语态。2)表示静态的及物动词不用被动语态4.系动词没有被动动态和进行时态1Historyis_________bythepeople.(make)2Heisoften___________todotheworkbytheteacher.(ask)3Thebook___________byhimlastyear.(write)4Theradio______________lastweek.(mend)5Sometrees________________onthehillthisspring.(plant)6Anewsubway_____________(build)nextyear.7She______________(take)tothehospitalalready.8Thousandsofsatellites______________(send)upintothespacesofar.9Theysaidthey_________________(invite)tothepartyalready.10Youngtreesshould______________(water)often.