Unit 4 Natural Disasters Discovering Useful Structures 课件(共20张PPT)人教版（2019）必修第一册
文档属性
| 名称 | Unit 4 Natural Disasters Discovering Useful Structures 课件(共20张PPT)人教版（2019）必修第一册 |  | |
| 格式 | pptx | ||
| 文件大小 | 2.0MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2025-07-29 17:20:30 | ||
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文档简介
(共20张PPT)
定语从句
Attributive Clause
She is a beautiful girl.
She is a girl with long hair.
什么是定语？
先行词
后置定语
定语从句
Step 1
She is a girl who has long hair.
补充或修饰先行词
先行词
关系词
从 句
被定语从句所修饰的名词或代词。
引导定语从句,指代先行词
定语从句三要素：
A doctor is a person who looks after people’s health.
先行词
关系词
定语从句
主语
谓语
宾语
注：当关系代词在从句中作主语时，谓语动词单复数应与先行词的单复数保持一致。
先行词 关系词 从句
Step 2 discover the structure
It’s an animal which has a long nose.
先行词
关系代词
从句的其他成分
关系词的选择
关系代词
(缺主要成分)
that, which, who, whom, whose
关系副词
(不缺主要成分)
when, where, why
Step 3 Choose relative words
关系代词 先行词 在从句中的成分
that 人、物 主、宾(可省）、表
which 物 主、宾(可省）
who 人 主、宾(可省）
whom 人 宾语(可省）
whose 人、物 定语
关系副词 先行词 在从句中的成分
when=on which 时间名词 时间状语
where=in which 地点名词 地点状语
why=for which 原因reason 原因状语
（1）人that/who (主、宾)
物that/which (主、宾）
人/物that (主、宾）
（2）人，who （主、宾）
物，which（主、宾）
（3）人/物 whose＋名词 （主语）
（4）地点 where（状语）= in which
时间 when （状语）= on which
原因 why （状语）=for which
如何正确选择关系词
Step 1
Step 2
Step 3
找到先行词
先行词代指人还是物
从句中缺少什么主要成分
选定恰当的关系词
口诀: 前看先行词, 辩清人或物
后看从句里, 有无主宾语
1. The school is surrounded by green trees is
very famous.
2. I will always remember the days you stay with me.
3. The school I study is very beautiful.
4. I don't know the reason you come late.
5. He is the man I helped last Sunday.
when
where
why
that/which
who/that/whom
Step 4 Difference between that and which
Attention!!!
关系代词的选择：
1.先行词为all,everything,nothing,something,anything,little,much等不定代词。
2. 先行词被all, every, no, some, any, few, little, much 等修饰。
3. 先行词被序数词或最高级修饰。
4. 先行词被 the only, the very, the same, the last 修饰。
5. 当先行词是 who, which或主句就是这些词开头。
6. 先行词即是人又是物时。
that
which
that / which
1. Is there anything you don't need
2. It is the best drawing I have ever seen.
3. This is the first movie he directed.
4. This is the only I can find.
5. Who is the person is standing over there
6. We talked about the person and things we remember.
that
that
that
that
that
that
Attention!!!
关系代词的选择：
which
that
1.非限制性定语从句中，前面有逗号，指物只能用which（特殊情况：指人只能用who/whom）
2.当关系词前面有介词时，指物只能用which
（特殊情况：指人只能用whom）
that / which
1. Football, is a very interesting game, is played in many places.
2. I remember the day on I met you in the street.
3. She has read many stories, greatly improve her writing skills.
4. This is the book on I spent five dollars.
5. We depend on the land from we get our food.
6. My car, I bought last week, is very beautiful.
which
which
which
which
which
which
Step 5 Integrated exercise
1.(2023·新高考全国Ⅰ卷)Paul Revere was a silversmith(银匠) in Boston rode a horse at night on 18 April 1775 to Lexington to warn people that British soldiers were coming.
2. (21 新高考II) I decided that if I learned of a company used a lot of plastic, I’d send it an email urging it to cut back.
3. Many lessons are now available online, from students can choose for free.
4. (2019全国卷III)They were well trained by their masters ______ had great experience with caring for these animals.
who
which/that
who/that
which
Summary
修饰 或 的句子
先行词
定义
结构
＋
关系词
＋
从句
关系词
关系代词
关系副词
(缺主要成分)
(不缺主要成分)
I like the dog that is so cute.
that, which, who, whom, whose
when, where, why
代词
名词
Thank You!
定语从句
Attributive Clause
She is a beautiful girl.
She is a girl with long hair.
什么是定语？
先行词
后置定语
定语从句
Step 1
She is a girl who has long hair.
补充或修饰先行词
先行词
关系词
从 句
被定语从句所修饰的名词或代词。
引导定语从句,指代先行词
定语从句三要素：
A doctor is a person who looks after people’s health.
先行词
关系词
定语从句
主语
谓语
宾语
注：当关系代词在从句中作主语时，谓语动词单复数应与先行词的单复数保持一致。
先行词 关系词 从句
Step 2 discover the structure
It’s an animal which has a long nose.
先行词
关系代词
从句的其他成分
关系词的选择
关系代词
(缺主要成分)
that, which, who, whom, whose
关系副词
(不缺主要成分)
when, where, why
Step 3 Choose relative words
关系代词 先行词 在从句中的成分
that 人、物 主、宾(可省）、表
which 物 主、宾(可省）
who 人 主、宾(可省）
whom 人 宾语(可省）
whose 人、物 定语
关系副词 先行词 在从句中的成分
when=on which 时间名词 时间状语
where=in which 地点名词 地点状语
why=for which 原因reason 原因状语
（1）人that/who (主、宾)
物that/which (主、宾）
人/物that (主、宾）
（2）人，who （主、宾）
物，which（主、宾）
（3）人/物 whose＋名词 （主语）
（4）地点 where（状语）= in which
时间 when （状语）= on which
原因 why （状语）=for which
如何正确选择关系词
Step 1
Step 2
Step 3
找到先行词
先行词代指人还是物
从句中缺少什么主要成分
选定恰当的关系词
口诀: 前看先行词, 辩清人或物
后看从句里, 有无主宾语
1. The school is surrounded by green trees is
very famous.
2. I will always remember the days you stay with me.
3. The school I study is very beautiful.
4. I don't know the reason you come late.
5. He is the man I helped last Sunday.
when
where
why
that/which
who/that/whom
Step 4 Difference between that and which
Attention!!!
关系代词的选择：
1.先行词为all,everything,nothing,something,anything,little,much等不定代词。
2. 先行词被all, every, no, some, any, few, little, much 等修饰。
3. 先行词被序数词或最高级修饰。
4. 先行词被 the only, the very, the same, the last 修饰。
5. 当先行词是 who, which或主句就是这些词开头。
6. 先行词即是人又是物时。
that
which
that / which
1. Is there anything you don't need
2. It is the best drawing I have ever seen.
3. This is the first movie he directed.
4. This is the only I can find.
5. Who is the person is standing over there
6. We talked about the person and things we remember.
that
that
that
that
that
that
Attention!!!
关系代词的选择：
which
that
1.非限制性定语从句中，前面有逗号，指物只能用which（特殊情况：指人只能用who/whom）
2.当关系词前面有介词时，指物只能用which
（特殊情况：指人只能用whom）
that / which
1. Football, is a very interesting game, is played in many places.
2. I remember the day on I met you in the street.
3. She has read many stories, greatly improve her writing skills.
4. This is the book on I spent five dollars.
5. We depend on the land from we get our food.
6. My car, I bought last week, is very beautiful.
which
which
which
which
which
which
Step 5 Integrated exercise
1.(2023·新高考全国Ⅰ卷)Paul Revere was a silversmith(银匠) in Boston rode a horse at night on 18 April 1775 to Lexington to warn people that British soldiers were coming.
2. (21 新高考II) I decided that if I learned of a company used a lot of plastic, I’d send it an email urging it to cut back.
3. Many lessons are now available online, from students can choose for free.
4. (2019全国卷III)They were well trained by their masters ______ had great experience with caring for these animals.
who
which/that
who/that
which
Summary
修饰 或 的句子
先行词
定义
结构
＋
关系词
＋
从句
关系词
关系代词
关系副词
(缺主要成分)
(不缺主要成分)
I like the dog that is so cute.
that, which, who, whom, whose
when, where, why
代词
名词
Thank You!