人教版（2019）必修 第一册Unit 4 Natural disasters Grammar and usage课件(共31张PPT)

(共31张PPT)
必修一 unit 4 Grammar and usage
关系副词引导的定语从句
Restrictive relative clauses(限制性定语从句)
with relative adverbs（关系副词）
01
Review
关系代词引导的
限制性定语从句
Revision:
1.先行词（a noun,pronoun,noun phrase）
2.关系词(relative pronouns, relative adverbs)
3.关系词在定语从句中的成分(subject, object, attributive, adverbial)
关系副词
状语
限制性定语从句三要素：
relative words
(关系词)
relative pronouns
(关系代词)
relative adverbs
(关系副词)
who whom
that which
whose as
when
where
why
Unit 3
Unit 4
Revision:
1.The boy ________ is the tallest in our class lives next door to me.
2.This is the house ____________ he bought yesterday.
3.The text book __________ cover is yellow is mine.
4.I want to read such a book ________you read.
5.The girl _____________the teacher often praises is our monitor.
(that/which)
关系代词选择
who/that
whose
(that/which)
(who/whom/that)
subject
object
attibutive
object
object
Lead in
On October 7th, a war broke out in the Middle East due to historical reasons.
When
Where
Why
Lead in
The time, the place and the reason are necessary in a piece of news.
We can use relative adverbs to refer to them in restrictive relative clauses.
When
Where
Why
定语从句除了由关系代词(who,which,that,whom,whose,as)引导外,还可由关系副词when, where, why引导,它们在从句中分别作时间状语，地点状语和原因状语。
How to use when,where and why in a restrictive relative clause(限制性定语从句) Let’s explore the rules together.
Relative adverbs
Lead in
By the end of this section, you will be able to:
1. have a general idea about what a restrictive relative clause with relative adverbs（关系副词引导的限制性定语从句） is.
2. be able to write some sentences with relative adverbs.
Learning objectives
02
Exploring the rules
where
why
when
介词+which
Exploring the rules
Underline the restrictive relative clauses.
P48 A
用when时，先行词是物，在定从中作时间状语。
I still remember the day when/on which Silico Valley Bank（硅谷银行） went bankrupt(破产).
This is the year when/in which Michelle Yeoh(杨紫琼) made history by winning the Oscar(奥斯卡) for lead actress.
= in the year
= on the day
when
where
why
用where时，先行词是物，在定从中作地点状语。
Temu(拼多多) is a shopping app where/through which Americans can get free products .
TikTok where/on which people share their lives are banned on government devices.
= through the app
= on TikTok
when
where
why
用why时，先行词是reason，why在定从中作原因状语。
There are several reasons why/for which Post Truth(保你平安) has drawn strong reviews（获得强烈评价）.
The reason why/for which Flowers are loved by so many people is the lyrics(歌词).
= for the reasons
= for the reason
when
where
why
03
Working out
the rules
where
why
when
介词+which
a time
a reason
which
介词
when 指时间 = in / at / on / during…+ which；where指地点 = in / on/at / from/through …+ which；why指原因 = for which
先行词 case(情况)、condition(状况)、situation（形势）、position（职位）、point(程度)、job、family、activity等表示抽象地点，其后的定语从句中也用where 做状语。
关系副词的作用：
Working out the rules:
There were several reason s why Post Truth(保你平安) has drawn strong reviews.
= for the reasons
Temu(拼多多) is a shopping app where Americans can get free products.
= through the app
This is the year whe n Michelle Yeoh made history by winning the Oscar(奥斯卡) for lead acrtess.
= in the year
①引导：连接定语从句和主句，位于从句前，先行词后
②指代：在定从中指代先行词，相当于：介词+which
③成分：在定语从句中作时间、地点、原因状语(而非主语、宾语或定语，或者不需宾语)
There were several reasons why/for which Post Truth(保你平安) has drawn strong reviews.
Temu(拼多多) is a shopping app where/through which Americans can get free products.
This is the year when/in which Michelle Yeoh made history by winning the Oscar(奥 斯卡) for lead acrtess.
不缺这些成分
04
Applying the rules
where
why
when
介词+which
1．（2023秋·新疆乌鲁木齐·高三校考期末）I still remember the day______________ I first came to Beijing.
2．（2023秋·上海杨浦·高三上海市杨浦高级中学校考期末）I want to work for a company ___________ I can develop new technology.
3．（2023秋·江苏南通·高三统考期末）As we explore the world in greater depth, we may reach a point _____________ it is impossible to run an experimental scenario in the real world due to physical, ethical or financial limitations(由于身体、道德或财务方面的限制，不可能在现实世界中运行实验场景。).
4．（2022秋·江苏南通·高三校联考阶段练习）Please tell me the reason _________________he was late.
Discussion
when
where
where
why
用关系副词填空
5.The school _________ I’m studying is very big.
6.I will never forget the day _________ I first met him.
7.The reason _________ he didn’t come yesterday is not clear.
8.I still remember the day ___________ I first came to this
school.
9.I visited the farm ____________a lot of cows were raised.
10.I don’t know the reason ____________he looks
unhappy today.
where
when
why
when
where
why
Discussion
用关系副词填空
1.Yesterday we went to visit the house where/__________ ____________the great writer used to live.
2.I will never forget the day when / __________ __________I first met you.
3.This is the reason why/ __________ __________ he didn’t come.
in
which
on
which
for
which
Discussion
用正确的介词+关系代词填空
05
Difficult points
关系副词
or
关系代词
1.Relative pronouns: which,who,that,whom,whose
2.Relative adverbs: where,when,why
3.介词+which
Difficult points
Which one should we choose
关系副词的作用：
Revision
There were several reason s why Post Truth(保你平安) has drawn strong reviews.
= for the reasons
Temu(拼多多) is a shopping app where Americans can get free products.
= through the app
This is the year whe n Michelle Yeoh made history by winning the Oscar(奥斯卡) for lead acrtess.
= in the year
①引导：连接定语从句和主句，位于从句前，先行词后
②指代：在定从中指代先行词，相当于：介词+which
③成分：在定语从句中作时间、地点、原因状语(而非主语、宾语或定语,或不需宾语)
This is the year when/in which Michelle Yeoh made history by winning the Oscar(奥 斯卡) for lead acrtess.
There were several reasons why/for which Post Truth(保你平安) has drawn strong reviews.
Temu(拼多多) is a shopping app where/through which Americans can get free products.
不缺这些成分
Pay attention to the functions of the relative words.
Exploring
请用关系代词或关系副词填空：
①I’ll never forget the days ____________ we spent together.②This is the reason _____________ he gave for his being late.③Do you like the school __________ we visited last week
a.when
b.(which/that)
a.why
b.(which/that)
a.where
b.(which/that)
Rules:
关系代词和关系副词的正确运用：
要想为定语从句确定一个关系词，首先要找出被定语从句修饰的_________，然后再分析
定语从句的成分。若定语从句中缺少主语、宾语、表语或定语，则选用____________。若定语从句中不缺主语、宾语、表语或定语，或不需要宾语（谓语动词为不及物动词），则选用____________。
注意：如果定语从句中不缺状语而缺乏的是主语或宾语，即使先行词是时间（如day）、地点（如school）、原因（如reason），连接定语从句也不能用关系副词。
先行词
关系代词
关系副词
1. ① The house _______________ she once lived is still there.
② The house ___________ she bought is in the city center.
③ The house ________ roof is red belongs to me.
④ The house ___________ is under repair belongs to my uncle.
where/in which
(that/which)
whose
that/which
Practice:关系副词or介词+which or 关系代词
2. ① I will remember the day _____________ we first met.
② I will always remember the days _____________ I spent with you in that village.
3. ① The reason ________________ I don’t know the thing is
that I was not there at that time.
② The reason _____________ I don’t know is known to her(她知道).
③ This is the very reason _______ he explained to me just now.
when/on which
(that/which)
why/for which
(that/which)
that
Practice:关系副词or介词+which or 关系代词
06
Summary
1.关系副词
2.介词+which
3.关系代词or关系副词
07
Homework
Complete the exercise B2 on page 49 of the textbook
THANK YOU