限制性定语(dìngyǔ)从句和非限制性定语(dìngyǔ)从句限制性定语(dìngyǔ)从句和非限制性定语(dìngyǔ)从句Themanwhocamehereyesterdayhascomeagain.关系副词(fùcí)when和why用于引导限制性定语从句时，在口语和非正式文体中可以省去，但是where通常不可以省去。如：②非限制性定语从句和先行(xiānxíng)词关系松散，只是对先行(xiānxíng)词作附加说明，如果省去，主句的意思仍然完整或清楚。这种定语从句和主句之间须用逗号隔开。如：c.Helivesinanothertown,whichisonlyaboutanhour’sridefromhere.d.Soontheyarrivedatafarmhouse,infrontofwhichsatasmallboy.e.Theysetupaseparatestateoftheirown,wheretheywouldbefreetokeepNegroesasslaves.注意(zhùyì)：引导非限制性定语从句的关系代词不可用that，指人时用who(主语),whom(宾语)，指物时须用which.PracticeAPracticeB.Allthebooksthathavepicturesinthemarewellwritten.Allthebooks,whichhavepicturesinthem,arewellwritten.ExercisesA2、Isthisfactory____wevisitedlastweek.4、Thisistheschool_______myfatherworked20yearsago.3、Shewillneverforgettheday_____shespentinBeijing.5、Thisisthefactory_______wevisitedlastyear.6、Thetextisoneofthemostinterestingstories_______learntinthepastthreedays.1、Thecollegewon’ttakeanyone_____eyesightisweak.1、Letmethinkofapropersituation_______thissentencecanbeused.2、Theman_______youaretalkingisinthenextroom.3、Idon’tliketheway_____hespoketome.4、I，______yougoodfriend,willtrymybesttohelpyouout.5、Thisistheonlything_____Icandonow.6、Those_____totakepartinthegamewritedownyournames.7、Hiswalkingstick,____hecan’twalk,waslostyesterday.8、Theyhavedecidedtofinishtheirwork,______,Ithinkisawisechoice.9、Thisisthereason______hetoldme.10、Thisisthelastfactory___heusedtoworkat,manyworkersof_____stillhaveagoodrelationshipwithhim.11、Therearethreelibrariesinourschool,_______werebuiltfiveyearsago.12、Hetoldmethereason_____hedidn’tcomehere.13、Whichofthetwocows______youkeepproducesmoremilk?内容(nèiróng)总结