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1、定语从句1.All____isneededisasupplyofoil.A.thethingB.thatC.whatD.which2.关系代词作定语从句主语时，从句谓语动词形式要与先行词一致ThosewhowanttogototheEnglishpartymustbeattheschoolgateby7:30p.m.Hewhodoesn’treachtheGreatWallisnotatrueman.3.分割定语从句Iwastheonlypersoninmyofficewhowasinvited.4.限制性定语从句和非限制性定语从句限制性定语从句：不能省略；不能用逗
2、号分开；翻译在先行词前；修饰先行词；可用that代替人或物，作宾语时that可省略。Intheirskintheyhavetinyplantswhichactas“dustman”.非限制性定语从句：可以省略；常用逗号分开；可译成与主句并列的一个分句；既可修饰先行词也可修饰整个主句；不可用that引导。Theweatherturnedouttobeverygood,___wasmorethanwecouldexpect.(which,what,that,it)5.关系代词和关系副词，关系代词：who,whom,whose,that,which,as.代替人代替物代替
3、人或物主语whowhichthat宾语whomwhichthat定语whose=ofwhomwhose=ofwhich同时代物代人的用that,做动词宾语可省，做介词宾语，只有介词在从句之尾时可省。InfacttheSwededidn’tunderstandthethreequestions___wereaskedinFrench.(who,where,inwhich,which)关系副词：when=at/in/on/which表示时间where=in/atwhich表地点why=forwhich表原因AfterlivinginParisforfiftyyears,
4、hereturnedtothesmalltown____hegrewupasachild.6.关系代词可省略的情况1)关系代词作宾语，且前边没有介词Whenyouwanttoseeifalibraryhasthebookyouwant,youcanusethecatalogue.2)在某些表时间名词后的关系副词可省略，如thetime,everytime,eachtime,themoment.Bythetimehewasfourteenyearsold,hehaslearnedadvancedmathematicsallbyhimself.3)在某些句中表示地点名词
5、后的关系副词有时也可省略，如theplace.That’stheplacehestayedwhenhewasinParis.4)先行词theway后面的关系副词可省略（that，which）Thatwasthewayshelookedafterus.7.先行词指物时，用that而不用which的四种情况1）先行词是不定代词all,none,one,any,few,little,much,everything,nothing,anything等时IsthereanythingthatIcandoforyouintown?(注：something时两者皆可)2）先行词被
6、形容词最高级所修饰时。ThisisthebestfilmthatIhaveeverseen.3)先行词被序数词或thelast,theonly,thevery修饰时。ThisisthefirstplacethatIvisitedlast.4)先行词包含了指人和物两方面的含义时。Theytalkedaboutthethingsandpersonsthattheyrememberedintheschool.8.先行词指物时，用which不用that的情况。1）引导非限制性定语从句。先行项可以是一个词、词组或整个句子。Sheheardaterriblenoise,____
7、_broughtherheartintohemouth.AitBwhichCthisDthat2)关系代词作介词的宾语时，用“介词+which”的结构Hebuiltatelescopethroughwhichhecouldstudytheskies.9.whose表所属“人”，又可指“物”=ofwhichThedoctor,whosenamewasJohnson,livedinThorby,asmalltown.Pleasepassmethedictionarywhosecoverisblack.(=thecoverofwhichisblack)10.as常用于
