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1、定语从句概念：在复合句中，修饰某一名或代词的句子(从句)叫，在句中作定语。定语从句所修饰的词叫引导定语从句的词叫O(即关系代或副词)Iknowthemanfwh^isstandingunderthetree.先寿訂丁关系代词泄i吾从句1•限制性和非限制性定语从句2.定从解题两步走3.that和Which的选择",〃Hthat不相容找到从句画括号，根据成分选连词十字方针，两不选4•先行词是表时间(when)^地点(where)和厘因(why)洗竟用关系副词还是用关系代词两窍门1关代、关副看成分，根据成分选连词2•从句谓动是及物，若后无宾选关代;谓动若是不及
2、物，选择关副且记住注意:关系代词(引导词)在从句屮作主语时，从句谓语的人称、数必须和先行词保持一致。Eg:Heisthestudent(who)(know)theanswertothequestion.Manyboys(who)(have)lotsoftoysgaveawaytheirtoystothecharityyesterday・Eg:Theinformationthatbytheteachersaboutstudyingtopicsisusefulforyourtests,soitisnecessaryforyoutolearntotakegoo
3、dnotes.A.areprovidedB.wasprovidedC.isprovidedD.wereprovided一.限定性关系代词：who,whom,which,whose,that,as.关系副词:when,where,why.介词+关系代词：whom(人),which(物).二.非限制性关系代词：who,whom,which,whose,as.(作主、宾、表、定语，充当主干成分)关系副词：when,where,why.(作状语)限制性和非限制性定语从句的区別：限制性非限制性与先行词的关系修饰限制作用补充说明作用逗号无有关系代词that只用于限制
4、性定从Eg:Theboywhoisplayingfootballismyfather.（修饰限制）Mr.Smith,wholivesnextdoor,comesfromCanada.（补充说明）■定语从句的解题思路（秒杀技巧:两步走）找到从句画括号，根据成分选连词⑴找到从句画括号（连词起，笫二个动词为止）Eg:lknowthemanwhoisstandingunderthetree・Amanwhodoesn〃twanttolearnfromotherscan'tachievemuch・Theboywhoiswritingismyyoungerbrothe
5、r.⑵根据成分选连词(四看妙招：(•看指人还是物,'•看介词在何处;三看句中作何用，四看是否属特殊)一看:Heisthestudent()knowstheanswertothequestion.Manyboys()havelotsoftoysgaveawaytheirtoystothecharityyesterday.Haveyoureadthebook(/)isaboutthemoon?二看:Thisisthepen()I'mlookingfor.Thisisthehousein(Doyouknowthekidwith()Iwasborn.)Bobis
6、talkingoverthere?)issittingnexttoSally?Thepolicearrestedthecriminal(Whatiswrongwiththecar(四看:Thisisthemostbeautifulplace(Mr.Greenisthebestteacher()waswantedforthemurder.)heboughtlastmonth.)Ihaveevervisited・)teachesusEnglish・三看:Doyouknowtheman(Nowthehottesttopic()peoplearetalkinga
7、boutisthesafetyoffood・3」定语从句连接词主语:Who(人)、which(物)、that(是个大人/物)宾语:who/whom(人)、which(物)、that(人/物)定语:whosef人/痂的)状语:where)地点),when(时间),why(原因)■whose(人/物)+名词Eg:Thisisthegirl()motherworksinourschool.Ilikethecar()colorisblue.Thehouse()roof(名)wasdamagedhasnowbeenrepaired.
8、which和that的抉择(十
9、字方针，两不选)■只用that的情况(十字方针)两:先行词既有△又有物Eg:Th
