1、,一、定语从句 (重要考点),定语从句（Attributive Clauses）在句中做定语，修饰一个名词或代词，被修饰的名词,词组或代词即先行词。定语从句通常出现在先行词之后，由关系词（关系代词或关系副词）引出。,定语从句,概念:在复合句中修饰名词或代词的句子.,(Attributive clause),Mary is a beautiful girl.,Mary is a girl who is beautiful.,形容词作定语,句子作定语,修饰girl, 叫做定语从句,1.The man is a worker.,2.The man is speaking at the meeting
2、.,合并句子:,The man who is speaking at the meeting is a worker.,Mary is a girl.,Mary has long hair.,合并为一个句子,Mary is a girl who has long hair.,先行词,关系词,定语从句,Mary is a girl who has long hair.,关系代词,关系副词,which, who, whom, whose, that, as,Where, when, why,P11：资料 1,分类,限制性定语从句,非限制性定语从句,不可缺少没有逗号,补充说明有逗号不能用 that
3、(指物时用which),定语从句的用法:,当先行词是物时, 用which 或that引导.,These are the trees which were planted last year.,当先行词是人时, 用who, whom,whose, that引导.,who, whom, whose, that用法区别.,who 作定语从句的主语或宾语.,The man who is speaking at the meeting is a worker.,The man is a worker.,The man is speaking at the meeting.,分解,作主语,Whom 作定语
4、从句的宾语,The woman whom they wanted to visit is a teacher.,The woman is a teacher.,They wanted to visit the woman.,分解,作宾语,whose 作定语从句的定语.,I know the girl whose mother is a teacher.,分解,I know the girl.,The girls mother is a teacher.,作定语,that 可以作定语从句的主语和宾语.,注意: 关系代词在从句中作动词宾语时可省略.,The woman (whom/ that) t
5、hey wanted to visit is a teacher.,2、who(m),which和that的主要用法。 资料 2,下列情况只能用that,1 先行词有人有物。,先行词被序数词，形容词最高级所修饰时。,先行词为all， everything, nothing ,something anything 等不定代词修饰时。,4.先行词被every,no,some,any,little,much修饰时。,5.先行词被the only,the very,the same,the last修饰时。,关系副词的使用,Ill never forget the day when I joined
6、the army,on which,This is the house where I lived two years ago.,in which,=,=,Do you know the reason why she was late.,for which,=,3、特殊结构 资料 1)介词 + which,2)代词/数词 + of + whom/which 练习题6，30,考点：as与which引导的定语从句,两者均可引导非限制性定语从句，有时可以互换，但下列情况多用as。 1. 关系代词引导的定语从句居句首时。 e.g. As we all know, the earth is round.
7、 2. 当与such或the same连用时，一般用as。 e.g. Such books as you tell me are interesting.I have the same plan as you.,3. as在从句中作主语时，后面常接行为动词的被动语态，如be known，be said，be reported等，如从句中行为动词是主动语态，一般要用which作主语。 e.g. She has been late again, as was expected.Tom has made great progress, which made us happy.,4).as在定语从句中
8、的用法: 练习题36，40,Exercise,1. I have a friend _ likes listening to classical music.,who/that,which/that,whose,3. The man _ leg broke in amatch used to be a football player.,2. Yesterday Emily was wearing thenew dress _ I gave her.,4. My parents live in a house_is more than 100 years old.,5. The boy with _ John spoke is my brother.,which/that,whom,6. Kevin is reading a book _is too difficult for him.,which/that,7. Is there anything _ you want to buy in the town.,8.All _ we can do is to study hard.,9. The first one _ stands up is alittle boy.,that,that,that,
