定语从句教学课件

1、 在复合句中，放在名词或代词后面，由关系代词或关系副词引导的修饰该名词或代词的从句叫定语从句。定语从句的定义 根据关系词在定语从句中所充当的成分分为：关系代词和关系副词 关系代词: who whom that which whose as (在定语从句中充当主语、宾语、表语、定语)关系副词：when where why (在定语从句中充当状语） 关系代词的基本用法和注意点1. 关系代词的基本用法三. 1. 关系代词的基本用法关系代词指代的先行词充当从句的成分who人主语、宾语whom人宾语which物主语、宾语that人或物主语、宾语、表语whose人或物定语2. 关系代词的用法注意点(1)

2、that和which都可以指物，但以下5种情况只能用that 不能用which。当先行词中有人又有物时。如： Do you know the things and persons that they are talking about?2. 关系代词用法注意点(1)只能用that不能用which的5种情况 当先行词为不定代词all, one, no, some, any, everything, nothing, nobody, none等时。如：This is all that I want from the school.当先行词被最高级修饰时。如：The TV tower is the

3、highest building that has been built in this city. 当先行词被序数词修饰时。如：The first lesson that I learned will never be forgotten.当先行词被only, very, last等修饰时。This is the very book that I am looking for these days.特殊的关系代词AS关系代词as引导的限制性定语从句, 既可指人, 也可指物。在定语从句中可做主语, 宾语和表语。它常用在the same as, asas, suchas, soas 句型中，as

4、不可省略。You have made the same mistake as you made in the examination last time.This is such an interesting book _ we all like.This is so interesting a book _ we all like.This is such an interesting book _we all like it.This is so interesting a book _we all like it.asthat试比较定语从句和状语从句asthat这是大家都喜欢的如此有趣的

5、一本书。(定语从句)这本书如此有趣，大家都喜欢。(结果状语从句)关系副词when, where和why的用法五. 关系副词的基本用法关系副词指代的先行词充当从句的成分when表时间的名词/名词词组时间状语where表地点的名词/名词词组地点状语why表原因的名词原因状语关系副词的用法注意点(1)当先行词为time，表示“次数”时，应用关系词that 或省略。如：This is the first time (that) the president has visited the country.(2)当point, situation, case等词作先行词表示“情况，境地，场合”等意思时，其

6、后常由where引导定语从句，where在句中作状语。如：Can you think of a situation where this phrase can be used?4. 关系副词的用法注意点定语从句的分类定语从句The Restrictive Attributive Clause限制性定语从句The Non-Restrictive Attributive Clause非限制性定语从句在非限制性定语从句中，as可指代整个主句，其引导的定语从句可位于句首，句中或句末，通常用逗号与主句隔开。as 具有正如之意，与之搭配的动词一般是固定的，如：as you know/ as is know

7、n to us/as you see/as we planned/as we expected在非限制性定语从句中，which也可指代整个主句，但只可紧跟在主句的后面。as 引导的非限制性定语从句 “介词+关系代词”结构引导非限制性定语从句，一般有以下几种结构：(1)名词+介词+关系代词：They live in a house, the door of which faces south.4. “介词+关系代词”引导非限制性定语从句的几种结构(2)代词+介词+关系代词：There are four students in the classroom, all of whom are work

8、ing hard.(3)数词+介词+关系代词：Last Sunday I bought a book from the bookstore, three of which were English novels.(4)形容词比较级/最高级+介词+关系代词：China has thousands of islands, the largest of which is Taiwan.1.The girl _is standing next to our teacher is her daughter.2. The girl_ mother is a teacher can speak English very well.3. I cant find the book _is borrowed from the library.who/thatwhosewhich/that巩固练习：用适当的关系词填空巩固练习2：用适当的关系词填空1. Do you like the book she spent $10? 2. Do you like the book she learned a lot? 3. Do you like