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1、.过去分词用法归纳Mar7,2011过去分词主要表示被动，可表示发生在过去，所以叫过去分词。也可以无时间概念，只表示被动。过去分词用法：状语、定语、补语、表语。一．状语情况1：表“被动”的状语从句可简化成过去分词做状语。表示条件、时间、让步的连词可保留，如if,when,although。表原因的不保留，如because等。1)Hewon’tgotothepartytomorrow,ifheisnotinvited.Hewon’tgototheparty,ifnotinvited.2)Whenshewasaskedab
2、outherage,shekeptsilent.Whenaskedaboutherage,shekeptsilent.3)Onceitisformed,abadhabitishardtokick.Onceformed,abadhabitishardtokick.进一步练习:1)Ifitisseenfromthemountain,thecitylooksmorebeautiful.Seenfromthemountain,thecitylooksmorebeautiful.2)Ifitisheatedto100degree
3、sCentigrade,waterboils.Heatedto100degreesCentigrade,waterboils.3)Theproblems,iftheyarenotsolvedproperly,willseriouslyaffecttherelationsofnations.Theproblems,ifnotsolvedproperly,willseriouslyaffecttherelationsofnations.4)Althoughhewaswarnedofthedanger,theboystill
4、wentskatingontheice.Althoughwarnedofthedanger,theboystillwentskatingontheice.5)Whenhewasdressedinauniform,helookedmorelikeacookthanadoctor...Dressedinauniform,helookedmorelikeacookthanadoctor.6)Becauseitismadeofplastics,themachineisverylight.Madeofplastics,thema
5、chineisverylight.7)Becauseitwaswrittencarelessly,yourhomeworkisfullofmistakes.Writtencarelessly,yourhomeworkisfullofmistakes.8)Becausehewaslostinthought,healmostranintoacarinfrontofhim.Lostinthought,healmostranintoacar…9)Becausehewasfacedwithatoughproblem,thehea
6、dmasterwashavingahardtime.Facedwithatoughproblem,theheadmasterwashavingahardtime.10)BecauseheisinterestedinEnglish,helistenstoVOAeveryday.InterestedinEnglish,helistenstoVOAeveryday.但:1)Beforeitisused,themachinemustbetested.=Beforebeingused,themachinemustbetested
7、.2)Hewasveryunhappyafterhewaspunishedbyhisteacher.=Hewasveryunhappyafterbeingpunishedbyhisteacher.（说明：在第二种句式里before和after是介词。）情况2：过去分词表状态，词形被动，语义不被动。1)Dressedinred,shelooksbeautiful.2)Lostinthought,healmostranintothecarinfrontofhim.3)Seatedatthefrontoftheclassro
8、om,helistenedcarefullytotheteacher.4)Facedwithsomuchtrouble,hewasnotabletofinishtheworkontime.情况3：表“被动”的并列句，可简化成过去分词做伴随状语。1)Theteacherstoodthereandhewassurroundedbyth
