1、定语从句定义定语：相当于形容词，修饰名词或代词。定语从句：用一个句子来修饰名词或代词。my bookbeautiful flowersswimming poola book that is mineflowers which are beautifula pool where I can swim定语从句的引导词连接代词：that,which,who,whom,whose连接副词：when,where,why定语从句的先行词先行词就是定语从句所修饰的名词或代词。a book that is mineflowers which are beautifula pool where I can sw
2、im连接代词that：当先行词是表示人或事物的名词或代词时，用that；在从句中作主语或宾语The book that you borrowed me is very interesting.I know the man that helped me yesterday.I want to see something that is beautiful.连接代词which：当先行词是表示事物的名词或代词时，用which；在从句中作主语或宾语The bike which I bought last week is broken.I know a school which is very famo
3、us.连接代词who：当先行词是表示人的名词或代词时，用who；在从句中作主语或宾语whom：在从句中作宾语。He is the man who/whom I hate.Those who have study hard will succeed.连接代词whose：当先行词是表示人或物的名词或代词时，用whose;从句中作定语I met a girl whose hair was red.There is dog whose ears are very small.连接副词where：当先行词是表示地点的名词时，用where;在从句作状语This is the city where ther
4、e are many famous museum.This is the city that/which I visited last summer.试比较：连接副词when：当先行词是表示时间名词时，用when;在从句中作状语I still remember the summer when we met.It was a hot day when the accident happened.连接副词why：当先行词是表示原因的名词时（一般是reason），用why;在从句中作状语The reason why she was late is that she stayed up late la
5、st night.只用that不用which的情况.情况用法说明例句只用that的情况1.先行词为all,everything,anything,nothing,little,much,等不定代词时。2.先行词被all,any,every,each,much,little,no,some,few等修饰时。3.先行词有形容词最高级和序数词修饰时。4.先行词既指人又指物时。5.先行词被the only,the very修饰时。6.句中已经有who或which时，为了避免重复时。1.He told me everything that he knows.2.All the books that yo
6、u offered has been given out.3.This is the best film that I have ever read.4.We talked about the persons and things that we remembered.5.He is the only man that I want to see.6.Who is the man that is making a speech?定语从句引导词的省略引导词在从句中作宾语时可以省略He is the man who I hate.She is the pop star(that)I want to
7、 see very much.The book(which)I gave you is worth$10.非限制性定语从句 从结构上看，从句和主句之间用逗号分开;非限制性定语从句的先行词除名词或代词外，还可以是整个主句.I like to chat with Jack,who is a clever boy.He came late again,which made his teacher very angry.如何选择引导词1.先判断引导词在从句中做什么成分。若是主语或宾语或定语，则从连接代词中做选择；若是作状语，则从连接副词作选择。2.再根据先行词的词义判断，是指人、指物、指时间、指原因或
8、指地点，从而选择相应的引导词。3.注意个别引导词的特殊用法。练习题1.The woman _A_ is singing on the TV show is our English teacher.A.Who B.which C.whose2.Running Man is a very relaxing TV programme _A_ is still hot among the teenagers.A.which B.what C.who 3.-Which invention do you like best?-QQ.It is an invention _B_can help us com
9、municate with others online freely.A.what B.that C.who4.Theaters may have a brighter future if they can provide a movie experience _A_people cannot get at home.A.that B.who C.whom D.what 5.The woman _C_ is standing under the tree is my aunt.A.what B.which C.who D.where 6.Who won the first prize in E
10、nglish speech contest?The prize went to the girl _C_ speech was the most natural and fluent.A.thatB.whoC.whose D.不填7.Being blind is something _A_most people cant imagine.A.不填 B.what C.who D.which 8.-Shakespeare is a great writer _B_ is considered as a genius(天才）.-I think so.Many people around the wo
11、rld admire him very much.A.when B.who C.which D.whose9.I dont like the people _A_dont help others when they are in trouble.A.who B.which C.whose D.what 10.-I really want to relax myself.Could we see City Danger tonight?-Sure!The actor _C_a hero used to be a schoolteacher.I like him very much.A.who play B.which plays C.who plays D.that play11.The woman _B_is talking with my mother is our class teacher.A.which B.who C.whose D.whom 12.-What kind of show do you prefer?-I like the ones _C_ make me laugh.A.who B.whom C.that D.what
