定语从句简化的四种方法定语从句用来修饰名词或代词,为了使句子更简结,可以把定语从句简化为短语,其方法有以下几种:一,当定语从句中谓语动词的后面是介词短语时,只需要去掉关系代词和谓语动词即可,例如:1:ThestudentthatisfromCanadaspeaksFrench.ThestudentfromCanadaspeaksFrench.2:Thebookthatisonthetableisexpensive.Thebookonthetableisexpensive.二,当定语从句是主动结构,且是进行时态(现在进行时态和过去进行时态),或者当定语从句表示经常性的动作或状态时,可以简化为分词短语,例如:1:TheboythatisreadingabookisTom.TheboyreadingabookisTom.2:ThestudentswhostudyhereareallfromShanghai.ThestudentsstudyinghereareallfromShanghai.三,当定语从句是被动结构时,去掉关系代词和助动词,成为一个过去分词短语,例如:1:Thisisabookwhichwaswrittenbyawriter.Thisisabookwrittenbyawriter.2:ThefloorthatwassweptbyBillyesterdayiscleannow.ThefloorsweptbyBillyesterdayiscleannow.四,当定语从句中的谓语动词,表示一个将要发生的动作或者有某种情态意义时,可以简化为动词不定式,例如:1:Shehasalotofworkthatshemustdo.Shehasalotofworktodo.简化下列定语从句:(作业题)1:IboughtabookthatwaswrittenbyLuxun.2:Thatboywhoisstudyinginclassismybrother.3:NowIhaveonethingthatImusttellyou.4:Themanthatisattheschoolgateismyheadmaster.