定语从句定义：在复和句中，用来说明句子中某个名词或代词（有时也可以说明整个主句或主句的一部分）而起定语作用的句子。先行词+关系代词/关系副词一；定语从句限制性定语从句修饰限制作用，不可缺非限制性定语从句逗号隔开，补充说明，可缺Thisisthehousewhichweboughtlastmonth.Theysecretlybuiltupasmallfactory,whichproducedthingsthatcouldcausepollution.热点考点：（1）掌握引导定语从句关系代词和关系副词的基本意义及用法（2）限制性定语从句和非限制性定语从句区别,主要掌握非限制性定语从句，尤其先行词是整个主句的时候。(3)掌握“介词+关系代词”引导的定语从句关系代词(连接作用；代替作用；成分作用):thatwhichwhowhomwhose关系副词：whenwherewhy(reason)as主要用于非限制性的定语从句和such...as,thesame...as,as...as限制性的定语从句结构中Doyoustillrememberthedays______wespentinNanjing?Doyoustillrememberthedays______wespentthesummerholidaysinNanjing?做题时刻记住的知识点：that不可以引导非限制性定语从句代词that,who前不可以直接跟介词，主要考查介词+关系代词(which/whom)定语从句的省略Who和whom的区别Whose代物时可以等于of+whichThisisthehousewhosewindowbrokelastnight.=Thisisthehouse,thewindowofwhichbrokelastnight.=Thisisthehouse,ofwhichthewindowbrokelastnight.2011(湖南)JuliewasgoodatGerman,FrenchandRussian,allof____shespokefluently.whoB.whomC.whichD.that2012(江苏)Aftertheflooding,peopleweresufferinginthatarea,_____urgentlyneededcleanwater,medicineandsheltertosurvive.WhichB.WhoC.whereD.what2010(上海)Windpowerisanancientsourcefoenergy__________wemayreturninthenearfuture.tothatB.bywhichC.towhichD.fromwhich2011（新课标）Theprizewillgotothewriter_______storyshowsthemostimaginationA.thatB.whichC.whoseD.what五种简单句子主语+不及物动词主语+及物动词+宾语主语+及物动词+间宾+直宾主语+及物动词+宾语+补语主语+be+表语在介词的位置变化以及相应的关系词的变化。请分析下面两个句子那就是他工作的大学。┏atwhichheworks.┣whichheworksat.Thatisthecollege┣whereheworks.┣thatheworksat.Mikewasthefirstboy_____whenyouarrivedinNewYork.YoutalkedtoB.YoutalkedtowhoCtowhoyoutalkedD.Whomtalkedyou★介词后面跟关系代词只能接whom/which,不能省Thewomanwithwhomyoushookhandsjustnowisheadofthecompany.Ihaveboughtwopens,neitherofwhichwriteswell二、关系代词which和that的用法★只用that不用which情况1）.先行词为all,little,much,few,anything,something,everything,nothing，none等不定代词时，只用that引导。注：something后一般用which,that也可以。Eg；Isthereanythingthatyouwanttoexplain?In1898，theydeclaredthattheybelievedtherewassomethinginnaturewhichgaveoutradiation.2）.先行词前有形容词最高级、序