一般过去时被动语态91456ppt课件

Welcome ThePassiveVoice madebyAchilles Mr Peng Grammar ThePassiveVoice被动语态 主动语态与被动语态 英语中有两种语态 即主动语态 TheActiveVoice 与被动语态 ThePassiveVoice 主动语态表示主语是动作的执行者 被动语态表示主语是动作的承受者 例如 TheymaketrainsinZhuzhou 主动语态 TrainsaremadeinZhuzhou 被动语态 一般现在时的被动语态构成 am is are 动词的过去分词 主动语态变被动语态的步骤 1 主动语态的宾语变为被动语态的主语 2 主动句的谓语动词变为被动结构 3 主动句的主语变为被动句的宾语 由by引出 当不强调动作的执行者时 常省略 例如 ManypeoplespeakEnglish English isspoken by manypeople 将下列的句子改为被动语态 1 TheyspeakEnglishinCanada 2 Peopleusewoodformakingtables 3 TheymakecomputersintheUSA 4 TheygrowriceinSouthChina EnglishisspokeninCanada Woodisusedformakingtables ComputersaremadeintheUSA RiceisgrowninSouthChina Teachingaims 1 了解并掌握一般过去时被动语态的肯定句 否定句以及一般疑问句的结构2 能从主动语态变为被动语态3 能熟练运用一般现在时和一般过时的被动语态 自学任务 课本134 135 一般过去时被动语态的三种句式结构 一般过去时被动语态的三种句式结构 肯定句 主语 was were 动词的过去分词 by 动作执行者 否定句 主语 was were not 动词的过去分词 by 动作执行者 一般疑问句 Was Were 主语 动词的过去分词 by 动作执行者 2 Iboughtacomputerlastterm Acomputerwasbought byme lastterm Thelightwasinventedbyhim invent Heinventedthelight Jimrodethemotorbiketohisfactoryyesterday Themotorbikewasriddentohisfactoryyesterday Theyhadaneveningpartylastweek Aneveningpartywashadlastweek TheGreatWallwasbuiltbyChinesepeoplemanyyearsago ChinesepeoplebuilttheGreatWallmanyyearsago Thestudentsplantedmanytreesyesterday Manytreeswereplantedbythestudentsyesterday 1 Peopleuseknivesforcuttingthings Knives forcuttingthings 2 Thestudentscleanthewindowsoftheirclassroomtwiceamonth Thewindowsoftheirclassroom twiceamonth areused are cleaned 变被动语态 七嘴八舌 3 Ifoundtheticketonthefloor onthefloor 4 Itoldhertoreturnthebookintime She toreturnthebookintime Theticketwasfound wastold 3 Wefoundtheticketonthefloor 5 Lastyearwebuiltalibraryinourschool Alibrary inourschoollastyear wasbuilt 6 Didyouplantmanytreesatthistimelastyear atthistimelasttime Weremanytreesplanted 7 TheteacheraskedTomtoturnonthecomputer Tom toturnonthecomputer 8 Inthisfactorywomendomostofthework Mostofthework bywomeninthisfactory wasasked isdone Haveatry 1 Sheinventedteabyaccident 2 Theydon twashtheirclotheseveryday 3 Theboybrokethedooroftheclass Teawasinventedbyherbyaccident Theirclothesaren twashedbythemeveryday Thedooroftheclasswasbrokenbytheboy 4 Wedidn tsolvetheproblem 5 DidMaryfinishthework Theproblemwasn tsolvedbyus WastheworkfinishedbyMary Fillintheblanks Paper invent inA D 105byCaiLuninChina Itisanimportantpartofoureverydaylives butfewpeopleeverthinkabouthowit make Todaymostpapercomesfromtrees However withtheconcernfortheenvironment 考虑到环境 moreandmorepaper produce fromrecycledpaperproducts Sincepaperproductsareofdifferentqualities