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定语从句讲解 定语从句讲解ppt课件

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定语从句讲解 定语从句讲解ppt课件定语从句讲解 定语从句讲解ppt课件


1、定语从句是高中英语的重要语法项目之一,它的结构和用法比较复杂。

2、我们应从哪些方面有效地复习定语从句呢?下面就是我给大家带来的定语从句的用法讲解,希望大家喜欢![定语从句的种类]定语从句分为限制性和非限制性两种。

3、限制性定语从句是 句子 不可缺少的部分,如去掉主句意思就不完整或失去意义;非限制性定语从句是先行词的附加说明,去掉也不会影响主句的意思。

4、它与主句之间通常用逗号分开,一般不用that引导,关系词不可省略。

5、如:This is the book that I want to read. (限制性)Tom’s father, who arrived just now, is a famous scientist. (非限制性)非限制性定语从句的先行词成分可以是整个主句,非限制性定语从句常用which引导,修饰整个句子。

6、定语从句的谓语动词要用第三人称单数。

7、例如:The weather turned out to be very good, which was more than we could expect.关系代词引导的定语从句关系代词所指代的先行词是表示人或物的名词或代词,并在句中充当主语、宾语、定语等成分。

8、关系代词在定语从句中作主语时,从句谓语动词的人称和数要和先行词保持一致。

9、在定语从句中,who和that既可作主语又可作宾语,whom只可作宾语(作宾语时可以省略)。

10、如:Is he the man who/that wants to see you? (who/that在从句中作主语)The man (whom/who/that) you spoke to just now is our English teacher. (whom/who/that在从句中作宾语,可省略)[whose]在定语从句中作定语,可用来指人或物,表示物时相当于“the+名词+of+which”或“of+which+the+名词”。

11、如:John, whose wife is ill, can’t come to the party.[which & that]which和that指代的先行词是表示事物的名词或代词,在定语从句中可作主语、宾语等。

12、如:Please show me the radio that/which you have just bought. (that/which在从句中作宾语,可省略)This is the film that/which created a great sensation. (that/which在从句中作主语)只能用that而不能用which的情况:1. 先行词是最高级或被最高级修饰时。

13、如:This is the best dictionary that I’ve ever used.2. 先行词是序数词或被序数词修饰时。

14、如:The first thing that we should do is to get some food.3. 当先行词是anything, everything, nothing, something, few, all, none, little, some等不定代词时,或是由every, any, all, some, no, little, few, much等词修饰时。

15、如:Tom told his father all that had happened.There is little that I can do for you.4. 先行词既有人又有物时。

16、如:They talked about the teachers and the schools that they knew.5. 先行词被the only,the very,the right等修饰时。

17、如:This is the very book that I want to have.6. 在which,who,whom引起的问句中,为避免重复。

本文到这结束,希望上面文章对大家有所帮助。

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