人教版（2019）必修第一册： Unit 5 Languages Around the World 定语从句关系副词课件（26张ppt）

(共26张PPT)
Teacher
Attributive Clause
(定语从句)
Unit4 Earthquakes (Grammar)
knowledge review
Part one
What is Attribute Clause
定语从句：在复合句中，修饰名词或代词(先行词）的从句就是定语从句 。
先行词：被定语从句所修饰的名词或代词。
关系词：引导定语从句的词。
For example：
This is the car （which I bought last year.）
先行词
Knowledge points
定语从句的基本结构
关
系
词
从
句
限制性定语从句的引导词
关系代词：that/which/who/whom/whose/as
关系副词：when/where/why
主语 宾语 定语 状语
人
物
that
who
as
that
which
as
that
who/whom
as
whose
whose
when
where
why
that
which
as
Relative adverb
Part Two
1.when引导定语从句的用法
When、Where、Why
一、关系副词
（1）当先行词是表示时间的名词（如time,day,year,month,week等），且关系词在从句中作时间状语时，定语从句用when引导。
（2）相当于“介词+ 关系代词（which）”。
例句:I still remember the day when I first came to Beijing.（=on which）
关系副词：在从句中做（ 时间）状语
①August 8th, 2008 is the day .
②The 29th Olympic Games were held in Beijing on the day .
August 8th, 2008 is the day on which the 29th Olympic Games were heldin Beijing.
August 8th, 2008 is the day when the 29th Olympic Games were held in Beijing.
关系副词when的用法注意点
［名师点津］
当先行词是表示时间的名词时，既可以用when引导定语从句，也可以用that或which引导定语从句，关键要看关系词在定语从句中作何种成分。若关系词在定语从句中充当状语，则用when 引导；若关系词在定语从句中充当主语或宾语，则用that或which引导。
Do you still remenber the days( ___________ ) we spent together on the farm.(作spent的宾语）
Do you still remenber the days( ______ ) we chatted with each other all night.（在从句中作状语）
that\which
when
即学即练
(1) We have entered into an age ________ dreams have the best chance of coming true.
(2) The exact year ___________ Angale and her family spent together in China was 2008.
when
which\that
关系副词where
2.where 引导定语从句的用法
（1）当先行词是表示具体地点的名词（如place,room,mountain,airport等）或表示抽象地点的名词（如 case,state,condition,point,situation等），且关系词在从句中作地点状语时，定语从句用where引导。
例句：We have reached a point where a change is needed.
（2）相当于“介词+ 关系代词（which）”。
例句:The factory where his father works is in the west of the city.
（=in which）
关系副词where：在从句中做（ 地点）状语
①This is the farm.
②we worked on the farm when we were young.
The school where his mother teaches is in the west of the city.
This is the farm where we worked when we were young.
on which
①The school is in the west of the city.
②His mother teaches in the school.
in which
［名师点津］
当先行词为表示地点的名词时，如果关系词在定语从句中作主语或宾语，则用that或which引导定语从句。
His father works in a factory which/that makes radio parts.他的父亲在一家制造收音机零件的工厂里工作。
关系副词 where 的用法注意点
即学即练
(1)Their child is at the stage ______ she can say individual words but not full sentences.
A.why B.where C.which D.what
(2)Self-driving is an area _______ China and the rest of the world are on the same starting line.
A.that B.where C.which D.when
1. I still remember the day _________ we spent in the forest.
2. I still remember the day ____________ I first came to Beijing.
3. The factory ___________ we will visit is large.
4. The factory ___________ his father works is large.
5. I’ll never forget the time _______________ we worked on the farm.
6. This is the house ______________ we lived last year.
Fill in the blanks.
归纳:关系副词 指时间,关系副词 指地点,在定语从句中作 。即使先行词是时间地点,若作从句中的 ，只能用关系代词that, which.
that\which
when\on which
that\which
where\in which
when\during which
where\in which
when
where
状语
主语或宾语
关系副词why
2.why 引导定语从句的用法
（1）当先行词是表示原因的名词reason,且关系词在从句中作原因状语时，定语从句用why引导，且只能引导限制性定语从句。
（2）why可以用for which来代替。
例句:This is the reason why (=for which) he left in a hurry.
这就是他匆匆离去的原因。
［名师点津］
若先行词为reason,且关系词在定语从句中不作状语，而是充当主语或宾语，则用 that或which引导定语从句。
The reason that/which he told me yesterday was a lie.
昨天他告诉我的理由是个谎言。
关系副词 why 的用法注意点
Do you know the reason
She got so angry for the reason yesterday.
Do you know the reason for which she got so angry yesterday
Do you know the reason why she got so angry yesterday
关系副词：在从句中做（原因）状语
Sentence Analysis
即学即练
语法填空
(1) There are several reasons ________ school unifirms are a good idea. First of all,uniforms help the school look smart.
(2) However,there are a number of other reasons ______________ might explain why you want to garden.
why
that\which
Relative
adverb
when
where
why
(=at/in/on /during…which)
(=in/at…which)
Summary
时间状语
地点状语
原因状语
(=for which)
二、“介词＋关系代词”引导的定语从句
1、“介词＋关系代词”既可以引导限制性定语从句，也可以引导非限制性定语从句。
如果先行词指“人”，用“介词＋whom”；
如果先行词指“物”，用“介词＋which”；
二、“介词＋关系代词”引导的定语从句
2、选用介词的依据
(1)根据定语从句中________________的搭配习惯(即固定短语)。
(2)根据定语从句中的____________与介词的习惯搭配来确定介词。
(3)根据________ 与介词的搭配习惯(约定俗成，不一定是短语)。
(4)根据句子的意思来确定介词
谓语动词与介词
先行词
主要形容词
二、“介词＋关系代词”引导的定语从句
3、介词可以后移，此时关系代词可以省略（省略时，介词必须移）。
This is the book for which you asked. 这是你要的那本书。
This is the book (which/that) you asked for.这是你要的那本书。
［名师点津］有些固定的动词短语一般不能拆开，介词一般只能放在动词的后面。
二、“介词＋关系代词”引导的定语从句
4、在“介词十关系代词”结构中，介词也可换成介词短语，
如 by means of, because of, at the foot of, at the back of, in front of,
on the top of 等。
若介词短语表示位置，则定语从句往往用倒装语序。
Sound is a tool by means of which people communicate with each other.
声音是人们互相交流的工具。
关系副词 指代 在定语从句中所充当的成分 时间 地点 原因 主语 宾语 状语 定语
when
where
why
The usage of the relative adverb
& pronoun
Summary
关系副词 指代 在定语从句中所充当的成分 时间 地点 原因 主语 宾语 状语 定语
when √ √
where √ √
why √ √
The usage of the relative adverb
& pronoun
Summary
Thank you for listening!