PAGE-PAGE4-被动语态语态：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被动语态的基本用法：=1\*GB3①不知道或没必要提到动作的执行者是谁时用被动语态；②强调或突出动作的承受者常用被动语态（by短语有时可以省略）。被动语态的构成方式：be+done主动语态变被动语态的方法：(1)把主动语态的宾语变为被动语态的主语。(2)把谓语变成被动结构(be＋过去分词)，be的时态和原时态一致,形、数要和新主语一致、。(3)把主动语态中的主语放在介词by之后作宾语，将主格改为宾格。主语+do+宾语主语（原宾语）bedoneby+宾语（原主语）WuSongkilledthetiger.→ThetigerwaskilledbyWuSong.TheymakethebikesinChina.→ThebikesaremadebytheminChina.注意：主动变化被动时双宾语的变化，直接宾语或者间接宾语都可以做被动语态的主语：Myfriendgavemeaninterestingbook.Aninterestingbookwasgiventome(bymyfriend).Iwasgivenaninterestingbook(bymyfriend).(4)被动语态与系表结构的区别被动语态强调动作，由by引出动作的执行者，用过去时态。系表结构表主语的特点或状态，不用by引出动作的执行者，用现在时。如：Thebookwassoldbyacertainbookstore.(被动语态)Thebookiswellsold.(系表结构)Heisseatedonabench.（Heseatshimselfonabench.）坐在凳子上。Heishiddenbehindthedoor.(Hehidhimselfbehindthedoor.)他藏在门后。Heislostintheforest.HeisdrunkandbroughtupwhatheateThegirlisdressedinaredshortskirt.(5)bedone和get(become)done的区别be+done或形容词表示表示状态Hewasexcied(angry…).get(become)+done或adj表示动作Hegotexcied(angry…).（1）使用被动语态时应注意的几个问题。①被动语态可以用于各种时态和非谓语动词中。被动语态必有“bedone”，时态在“be”上体现。一般现在时：is/am/are+done一般过去时：was/were+done一般将来时：willbedone过去将来时：would+be+done现在进行时：is/am/are+being+done.过去进行时：was/were+being+done现在完成时：have/has+been+done过去完成时：had+been+done情态动词：can等+be+done不定式：tobedone动名词：beingdone分词作状语：havingbeendone、beingdonedonePeopleholdtheOlympicGamesonceeverfouryears.→TheOlympicGames________onceeverfouryears.(areheld)Theybuiltthebridgein1995Thebridge___________in1995.(wasbuilt)Theywillputuptheteachingbuildingupnextyear.→Theteachingbuildingwill__________________nextyear.(beputup)Hesaidthatpeoplewouldputuptheteachingbuildingupthenextyear.→Hesaidthattheteachingbuilding__________thenextyear.(wouldbeputup)Peoplearebuildinganewfactoryinourtown.→Anewfactory___________inourtown.(isbeingbuilt)TheschoolhassenthimtoworkinTibet.→He_______________toworkinTibet.(hasbeensent)Youmustfinishyourhomeworkassoonaspossible→Yourhomework___________________assoonaspossible.(mustbefinished