Unit 5 Languages Around the World Discovering useful structures课件（共26张）2024-2025学年高中英语人教版（2019）必修第一册

(共26张PPT)
定语从句——关系副词
Unit 5 Discovering Useful Structures
Unit 5 Discovering Useful Structures
where, when, why, prep.+which/whom)
Help students learn the form of Relative Clauses.
Guide students to know how to use Relative Clauses.
Design specific situations for students to make small conversitions.
Learning Objectives
1.He likes to use the dictionary was published in 1986.
2. Have you seen the books he bought yesterday
3. The boys are planting trees on the hill are middle school students.
4. The student we visited yesterday is a famous artist.
5. She is the girl father is a professor.
6.He lives in the room windows face south.
which/that
which/that
who/that
who/whom/that
whose
whose
Review
（一）定语从句的定义
在复合句中，修饰______或______的从句叫定语从句。被修饰的名词或代词叫________，引导定语从句的词叫________。关系词分为关系_____和关系_____两类。
名词
代词
先行词
关系词
代词
副词
Review
关系词
关系代词 who whom which that whose
关系副词 when where why
（二）关系代词及其用法
关系代词 指代 在定语从句中所充当的成分
人 物 主语 宾语 定语
that
which
who
whom
whose
√
√
√
√
√
√
√
√
√
√
√
√
√
√
√
Review
定语从句之关系副词
关系副词的用法
1. This is the house where I lived 20 years ago.
2. I still remember the day when I first met him.
3. Can you tell me the reason why you lied to me
地点
地点状语in the house
时间
时间状语on the day
原因
原因状语
for this reason
Observation
观察先行词有什么特点？
先行词在从句中作什么成分？
定语从句的形式特点：
名词/代词+ that/who/which/(whose+n)
名词+ when/where/why
1. when引导的定语从句
当先行词为表示时间的名词(如：day, time, week, month, year等)，且关系词在从句中作时间状语，定语从句用when引导。
1. I still remember the time when I was in college.
2. we will never forget the day when we flew at an altitude of 6000 meters in the sky.
关系副词的用法
2. where引导的定语从句。
当先行词为表示具体地点的名词(如：place, house, airport等)或抽象地点的名词(如：point， case， activity， situation， position， occasion， platform， email，stage，scene等) ，且关系词在从句中作地点状语，定语从句用where引导。
1. This is the hotel where they stayed.
2. we have reached a point where a change is needed.
3. He gets into a situation where it is hard to decide what is right or wrong.
关系副词的用法
3. why引导的定语从句
当先行词为表示原因的名词reason，且关系词在从句中作原因状语，定语从句用why引导。
1. This is the reason why he left in a hurry.
2. I don’t know the reason why he didn’t turn to his friends for help yesterday.
关系副词的用法
并非先行词是表示时间、地点、原因的词时，都选用关系副词when, where, why, 而是要先判断先行词在从句中是做状语还是主语宾语。
定语从句的关系副词
This is the factory I visited last year.
visit 是及物动词，需要接宾语，the factory 放在从句中做visit的宾语，故选择指代物的关系代词which/that，且可以省略。
This is the factory I used to work.
work 是不及物动词，不需要接宾语，the factory 放在从句中做地点状语，故选择指代地点状语的关系副词where或 in which。
(which/that)
where/in which
“介词+关系代词”引导的定语从句
1. when相当于“ at/in/on/during等 + which”
I remember the day ________________ I settled in China.
2. where 相当于“ in/at/on等 + which”
The house ________________ Mark lived is now a library.
3. why 相当于“for + which”
Is that the reason ______________ she suddenly changed her mind
1.关系副词when，where，why引导定语从句时，也可用“介词+which”代替关系副词。
when (=on which)
where (=in which)
why (=for which)
1. This is the student __________ I bought a book.
2. This is the ship _________ I went to Shanghai.
2. 在“介词+关系代词”引导的定语从句中，关系代词只能用which或whom,不可用that/who。先行词指物时用which，先行词指人时用whom。
for whom
by which
“介词+关系代词”引导的定语从句
介词的选择---一先二动三意义
(1)一先：根据先行词的习惯搭配
I’ll never forget the day on which I first met him.
表示具体某一天用介词on
(2)二动：根据从句谓语动词习惯搭配
This isn't the book about which the teacher talked in class.
talk about 谈论
(3)三意义：根据从句表达的意义
The colorless gas without which we cannot live is called oxygen.
没有，介词用 without
特殊：
1.介词前有时加名词、数词等，构成“名词/数词/不定代词＋of which/whom”结构，在定语从句中作主语。
★English is a language shared by several diverse cultures, each of which uses it differently.
英语是一种多元文化共享的语言，每一种文化使用它的方式各不相同。
1. 根据先行词的搭配, 从句中的动词、形容词等的搭配 (即固定短语)。
Yesterday we visited the West Lake Hangzhou is famous.
He is the student we should learn.
I remember the days I lived here.
I can’t remember the age he won the prize.
for which
from whom
during which
at which
【即学即练】
2. 根据句子的意思来选择。
This is the pilot my brother has worked for ten years.
This is the pilot my son was saved.
with whom
by whom
3. “名词、不定代词或数词 + of + which (指物)/whom (指人)”在定语从句中作主语，说明整体中的一部分。
China has lots of islands, is Hainan Island.
The building had been repaired, was destroyed again in a big fire.
Miss Liu has a lot of students, are girls.
one of which
the roof of which
some of whom
【即学即练】
summary
关系副词 先行词 句中成分
where 地点 地点状语
when 时间 时间状语
why 原因 原因状语
关系副词=介词+关系代词
where (=in/at/on which)
when (=on/during/in which)
why (=for which)
如何选择关系代词VS关系副词
① 从句缺少主、宾、定语
关系代词
关系副词
② 从句缺状语
识别定语从句
找先行词，划分主从句
把先行词插入到从句中
判断插入部分：是缺主语宾语、定语，还是缺状语
依据先行词，正确选用
解题步骤
解题步骤
1. （2020江苏卷）Many lessons are now available online, from ______ students can choose for free.
2. （2019江苏卷）We have entered into an age _______ dreams have the best chance of coming true.
3.（2019江苏卷）Their child is at the stage_________ she can say individual words but not full sentences.
which
when
链接高考
where
用恰当的关系代词，关系副词或“介词+关系代词”完成句子。
1．We visited the house _____ the famous scientist once lived.
2．The photo reminded me of the days ________ I played hide－and－seek with my brother and I stayed for six years.
3．It was a period _____ they had discussion very frequently.
4．The problem has come to a point ________ everyone has
different opinions and it is difficult to reach an agreement.
where
when
when
where
【即学即练】
1．The days _______ they travelled together meant a lot to him.
2．Nobody knows the reason _______ she didn't go to the party.
3．We visited the house _______ the famous scientist once lived.
4．The car _______ window got broken in the accident belongs to Mr. Brown.
5．The Smiths have two children, both of _______ work in New York.
6．Miss Liu is an excellent teacher _______ whom I have learnt a lot.
7．We have come to a point _______ everyone has different opinions and it is difficult to reach an agreement.
when
why
where
whose
whom
from
where
【即学即练】
1.I’ll never forget the day ___________ I joined the army.
2.The factory ___________ his father works is far away from my hometown.
3.I don’t know the reason ___________ he was late for school.
4.This is the camera ___________ he often takes photos.
5.He lives in a room, the window __________ faces west.
on which
in which
for which
with which
of which
【即学即练】
合并句子
1. My hometown has taken on a new look. I spent most of my childhood there.
2. Do you remember the day On that day we played together.
3. The reason is unknown. He carried a first-aid kit.
4. We’ll go to hear the famous singer. We have often talked about the famous singer.
5. The plane is very comfortable. We flew to Beijing in the plane.
6. There are sixty students in our class. Thirty of the students in our class are boys.
7. We settled down in a small village. In front of the village ran a winding river.
My hometown , where I spent most of my childhood, has taken on a new look.
Do you remember the day when we played together
The reason why he carried a first-aid kit is unknown.
We’ll go to hear the famous singer about whom we have often talked.
The plane in which we flew to Beijing is very comfortable.
There are sixty students in our class, thirty of whom are boys.
We settled down in a small village, in front of which ran a winding river.
thanks
Unit 5 Discovering Useful Structures
Unit 5 Discovering Useful Structures