1、A beautiful girl.A naughty boy名词名词形容词性形容词性作定语作定语She is a girl.The girl is beautiful.She is a girl (who is very beautiful.)定语从句定语从句先行词先行词关关系系词词连接连接指代指代作成分作成分从句的问题解决秘诀从句的问题解决秘诀：“一划二盖三打开一划二盖三打开”第一步：连词连接的句子是从句，把它当成一个整体。划第一步：连词连接的句子是从句，把它当成一个整体。划上。上。（what he said）is true All（that he said）is true.第二步：把这个从
2、句盖上，看它在主句中的语法功能，从第二步：把这个从句盖上，看它在主句中的语法功能，从而判断从句的性质。而判断从句的性质。第三步：把从句打开，添上合适的连词。注意添连词看从第三步：把从句打开，添上合适的连词。注意添连词看从句。因为从句性质不一样。句。因为从句性质不一样。1.That he wants a book is certain.2.Please tell me who your monitor is.3.The news that Tom would go abroad is told by him.4.The news that he told me is surprising.5.T
3、hat is the bike that/which I bought yesterday.6.That is what I bought yesterday.7.Anybody who breaks the law should be punished.8.Make a mark where you have questions.判断下面句子中哪一个是定语从句判断下面句子中哪一个是定语从句关系词代词（主、宾、表）关系词代词（主、宾、表）1）人：）人：who（主）（主）whom（宾）（宾）,that2)物：物：which,that,3）人）人/物的：物的：whose（定语）（定语）4）as关系
4、副词（状语）关系副词（状语）时间时间when地点地点where原因原因why 注意注意见到：见到：what,how,-ever 要排除要排除一一.关系词代词（主、宾、表）关系词代词（主、宾、表）I have two sisters _are a teacher.（who/whom/which）This is my mother _I love very much.(who/whom/which)I have a necklace_ is expensive.That is my teacher_dress is bule.WhoWhom,/which/that whose解题原则：解题原则：连
5、接、连接、指代、做成指代、做成分分注意：只用注意：只用that的情况的情况1）先行词被）先行词被形容词最高级形容词最高级 This is the most interesting film that Ive ever seen.序数词序数词 This is the first American film that you have seen?the only,the very修饰时修饰时 The only thing that we can do is to give you some money.2）先行词为）先行词为all、much、little、none、few、one、somethin
6、g、anything等不定代词时。等不定代词时。Do you have anything that you want to do?3）先行词中既有人又有物时。）先行词中既有人又有物时。Do you know the things and persons that they are talking about?二二.关系副词（状语）关系副词（状语）时间时间when=表示时间的介词表示时间的介词+which地点地点where=表地点的介词表地点的介词+which原因原因why=for+which I still remember the day when(on which)I first came
7、 to BeiJing Can you tell me the office where(in which)he works?.Do you know the reason why(for which)he is absent?一一二二Where 的考查的考查对对where不能只理解为表地点，不能只理解为表地点，当先行词表示某人、物的当先行词表示某人、物的situation或表达某事的某个方面都可用或表达某事的某个方面都可用where.The accident had reached to a point where both their parents are to be called in
8、.I can think of many cases where students obviously know a lot of English words and expressions but couldbt wtite a good essay.三三.介词介词+关系代词引导的定语从句关系代词引导的定语从句只能用：只能用：which/whom In the dark street,there wasnt a single person to whom she could turn for help.2.I bought a book,the price of which was high
9、.3.This is the pen that/which/“/”I wrote the letter with.(2008上海卷上海卷38)We went through a period _communications were very difficult in the rural areas.which B.whose C.in which D.with(2008福建福建31)By nine oclock,all the Olympic torch bearers had reached the top of Mount Qomolangma,_ appeared a rare rai
10、nbow soon.A.of which B.on which C.from which D.above(2008湖南湖南31)the growing speed of a plant is influenced by a number of factors,_ are beyond our control.A.most of them B.most of which C.most of what D.most of that四四 限制性定语从句限制性定语从句 VS.非限制性定语从句非限制性定语从句I have a brother who has six children.I have a b
11、rother,who has six children.区别区别意义区别：限制意义区别：限制/非限制非限制形式区别：形式区别：，非限制性定语从句：不能用非限制性定语从句：不能用thatAs在限制在限制/非限制非限制 定语从句用法定语从句用法as限制性定语从句限制性定语从句：用在固定搭配中：用在固定搭配中：as/so.as the sameas such.asHe is not the same man as he was.It is sold at such a low price as people expected.非限制性定语从句非限制性定语从句:as/which 的区别的区别非限制性定
12、语从句非限制性定语从句as/which 的区别的区别 as 位置灵活，可位于主句位置灵活，可位于主句前后前后 which只能用于主句只能用于主句之后之后 2.as只能修饰只能修饰整个句子整个句子的先行词的先行词 which既能修饰既能修饰句子句子，又能修饰，又能修饰名词名词。I bought a pen _ is five yuan.I bought a pen_made me happywhichWhich/as3.As 常用在以下结构中：常用在以下结构中：as is well-known as often happens as has been said before as has bee
13、n pointed as mighted be expected (2005浙江浙江17)_ I explained on the phone,your request will be considered at the next meeting.A.When B.After C.As D.Since五五 定语从句中注意事项：定语从句中注意事项：定语从句中的主谓一致问题：定语从句中的主谓一致问题：与先行词保持一致与先行词保持一致 注意：注意：先行词为先行词为one of+名词复数，定从：名词复数，定从：复数复数 先行词为先行词为the only/the very one of+名词复数名词复数 定从：定从：单单数数 He is one of the students who_(have)passed the exam.He is the only one of the students who_(have)passed the exam.I,who_(be)very busy,cant help them at the moment.The idea,which I think_(be)reasonable,was brought up by Professor Li havehasamis
