Unit 1 Art 不定式作表语语法课件(共28张PPT)-2025-2026学年高中英语人教版（2019）选择性必修第三册
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| 名称 | Unit 1 Art 不定式作表语语法课件(共28张PPT)-2025-2026学年高中英语人教版（2019）选择性必修第三册 |
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| 格式 | pptx | ||
| 文件大小 | 37.9MB | ||
| 资源类型 | 教案 | ||
| 版本资源 | 人教版（2019） | ||
| 科目 | 英语 | ||
| 更新时间 | 2026-01-21 00:00:00 | ||
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文档简介
(共28张PPT)
不定式
作表语
选修3
Unit1
Do you know what happened to Mixue
Example
Discussion
Discuss with your partner the function of the italicized infinitives.
Mixue’s ambition is to run an international branch分店 in New York.
My plan is to raise enough money and retire in two years'time.
不定式作表语
结构
My plan is to raise enough money and retire.
系动词
to do不定式
动词不定式可以放在 be和 become, sound, taste 等系动词后面作表语，由“(to) +动词原形”构成。
情形1
My part-time job is to guide the travelers.
主语和表语“等价＝”的情形。to guide the patients 为part time job的内容
to do不定式作表语表示主语的职业，职责，性质等。
翻译句子
我们的职责就是照顾好老人。
Our duty is to take good care of the elderly.
情形2
The main job of the zoo keeper is to look after them well.
My wish is to travel around the world.
当主语是aim, purpose, idea, intention, plan, wish, decision, choice等名词时，常用to do不定式作表语说明名词的内容。
翻译句子
他的梦想是让身边的人幸福健康。
His dream is to make people around him joyful and healthy.
情形3
What strikes me most is to see such unfair result.
What made me fail is to ignore the fact.
当主语时what 引导的名词性从句，用to do作表语说明其具体内容。
主语从句
翻译句子
他们会做的是在冬天庆祝节日。
What they would do is to celebrate the festival in winter.
情形4
You are to come when I call.
You are not to tell a lie to me.
be to do表示一般将来时，含有“应该，必须”等意思，常表示义务、命令、想法、约定、可能性等。
在港剧《河东狮吼》里面有这样的经典场面
翻译句子
你必须要鞠躬当你在日本见到比你年长或位高的人。
You are to bow when you come across someone who is senior to you in Janpan.
情形5
All they wanted was to take an active part in the event and cook for the beloved students.
当主语包含①定语从句,且先行词为②代词all, 或者主语被序数词、或the only, the last或形容词最高级 (the most,the least)时，其后可接“系动词+不定式”作表语
定语从句(that被省略)
先行词
翻译句子
我所能帮的最起码的事是借给她一辆车。
The least I can do to help is to lend her a car .
What he wanted to do was (to) become a skillful coser.
难点1
主语
主语部分含有行为动词do时，作表语的不定式可以省略to
All we look forward to doing is (to) live each day with hope.
主语
行为动词do
1. Some junior students are to blame for the improper behaviors.
2. The shop is to let.
难点2
不定式to blame(该受责备，应负责任)，to let(出租)用作表语时，通常用主动表被动。
Good medicine is bitter to taste.
The picture is pleasant to look at.
难点3
系动词
形容词
to do
动词不定式通常用主动形式表示被动意义
不定式与句子的主语存在动宾(被动)关系
难点4
“疑问词+不定式”构成不定式短语，在句中常作主语、宾语、表语
The problem was how to prevent such accident happens again.
疑问词
to do
难点5
To see is to believe.
= Seeing is believing.
动词不定式和v-ing作表语时，要注意与句子的主语在形式上保持一致
保持一致
Their job is studying for college entrance exam.
难点5
Their job is to perform in the class at the end of 2025.
V-ing动名词强调的是一般性、抽象的、经常发生的动作
To do强调的是一次性、具体的、将要发生的动作
Summary
结构
系动词+ to do
情形
表示主语的职业等
主语是aim/idea等名词
主语是what引导的名词性从句
be to do
主语含定语从句且先行词为all等
Summary
不定式的省略
不定式的主动表被动
疑问词+ to do
to do 作表语和doing作表语的区别
难点
PART THREE
练习巩固
使用不定式作表语改写句子。
If you really want to learn driving, going to a driving school might be the best choice. (my advice is ...)
If you want to learn driving, my advice is to go to a driving school.
example
使用不定式作表语改写句子。
Doing deep breathing exercises for ten minutes can make you feel more relaxed. (A good way to relax is...)
This year I hope I can achieve my goal of performing a flute solo （独奏）at the school's art festival. (My goal this year is ...)
A good way to relax is to do deep breathing exercises for ten minutes.
My goal this year is to perform a flute solo at the school's art festival.
使用不定式作表语改写句子。
To tell you the truth, I take yoga classes simply because I want to stay in shape. (..., my purpose...)
With his car stuck in the snow: he could do nothing but wait for help to arrive. (.., all he could do was ...)
To tell you the truth, my purpose in taking yoga classes is to stay in shape.
With his car stuck in the snow, all he could do was wait for help to arrive.
The young singer's intention of performing the song was
The best way to do business is
What the survivors attempted to do was
The main purpose of art education in schools is
The aim of the two leaders at the conference was
For a humble person,one of the hardest things might be
When you are faced with a serious decision,my suggestion is
The mother believes her duty is
All he wanted after a tiring day was
to build trust between you and your client.
to achieve permanent peace between their two countries.
to build a memorial to the heroes who saved their lives.
to share his love for rock music with his fans.
to be left alone.
to criticise other people.
to inspire students to be creative.
to listen to your own inner voice.
to raise her son to become a man with a noble mind and a generous heart.
匹配句子
Thanks
选修3
Unit1
不定式
作表语
选修3
Unit1
Do you know what happened to Mixue
Example
Discussion
Discuss with your partner the function of the italicized infinitives.
Mixue’s ambition is to run an international branch分店 in New York.
My plan is to raise enough money and retire in two years'time.
不定式作表语
结构
My plan is to raise enough money and retire.
系动词
to do不定式
动词不定式可以放在 be和 become, sound, taste 等系动词后面作表语，由“(to) +动词原形”构成。
情形1
My part-time job is to guide the travelers.
主语和表语“等价＝”的情形。to guide the patients 为part time job的内容
to do不定式作表语表示主语的职业，职责，性质等。
翻译句子
我们的职责就是照顾好老人。
Our duty is to take good care of the elderly.
情形2
The main job of the zoo keeper is to look after them well.
My wish is to travel around the world.
当主语是aim, purpose, idea, intention, plan, wish, decision, choice等名词时，常用to do不定式作表语说明名词的内容。
翻译句子
他的梦想是让身边的人幸福健康。
His dream is to make people around him joyful and healthy.
情形3
What strikes me most is to see such unfair result.
What made me fail is to ignore the fact.
当主语时what 引导的名词性从句，用to do作表语说明其具体内容。
主语从句
翻译句子
他们会做的是在冬天庆祝节日。
What they would do is to celebrate the festival in winter.
情形4
You are to come when I call.
You are not to tell a lie to me.
be to do表示一般将来时，含有“应该，必须”等意思，常表示义务、命令、想法、约定、可能性等。
在港剧《河东狮吼》里面有这样的经典场面
翻译句子
你必须要鞠躬当你在日本见到比你年长或位高的人。
You are to bow when you come across someone who is senior to you in Janpan.
情形5
All they wanted was to take an active part in the event and cook for the beloved students.
当主语包含①定语从句,且先行词为②代词all, 或者主语被序数词、或the only, the last或形容词最高级 (the most,the least)时，其后可接“系动词+不定式”作表语
定语从句(that被省略)
先行词
翻译句子
我所能帮的最起码的事是借给她一辆车。
The least I can do to help is to lend her a car .
What he wanted to do was (to) become a skillful coser.
难点1
主语
主语部分含有行为动词do时，作表语的不定式可以省略to
All we look forward to doing is (to) live each day with hope.
主语
行为动词do
1. Some junior students are to blame for the improper behaviors.
2. The shop is to let.
难点2
不定式to blame(该受责备，应负责任)，to let(出租)用作表语时，通常用主动表被动。
Good medicine is bitter to taste.
The picture is pleasant to look at.
难点3
系动词
形容词
to do
动词不定式通常用主动形式表示被动意义
不定式与句子的主语存在动宾(被动)关系
难点4
“疑问词+不定式”构成不定式短语，在句中常作主语、宾语、表语
The problem was how to prevent such accident happens again.
疑问词
to do
难点5
To see is to believe.
= Seeing is believing.
动词不定式和v-ing作表语时，要注意与句子的主语在形式上保持一致
保持一致
Their job is studying for college entrance exam.
难点5
Their job is to perform in the class at the end of 2025.
V-ing动名词强调的是一般性、抽象的、经常发生的动作
To do强调的是一次性、具体的、将要发生的动作
Summary
结构
系动词+ to do
情形
表示主语的职业等
主语是aim/idea等名词
主语是what引导的名词性从句
be to do
主语含定语从句且先行词为all等
Summary
不定式的省略
不定式的主动表被动
疑问词+ to do
to do 作表语和doing作表语的区别
难点
PART THREE
练习巩固
使用不定式作表语改写句子。
If you really want to learn driving, going to a driving school might be the best choice. (my advice is ...)
If you want to learn driving, my advice is to go to a driving school.
example
使用不定式作表语改写句子。
Doing deep breathing exercises for ten minutes can make you feel more relaxed. (A good way to relax is...)
This year I hope I can achieve my goal of performing a flute solo （独奏）at the school's art festival. (My goal this year is ...)
A good way to relax is to do deep breathing exercises for ten minutes.
My goal this year is to perform a flute solo at the school's art festival.
使用不定式作表语改写句子。
To tell you the truth, I take yoga classes simply because I want to stay in shape. (..., my purpose...)
With his car stuck in the snow: he could do nothing but wait for help to arrive. (.., all he could do was ...)
To tell you the truth, my purpose in taking yoga classes is to stay in shape.
With his car stuck in the snow, all he could do was wait for help to arrive.
The young singer's intention of performing the song was
The best way to do business is
What the survivors attempted to do was
The main purpose of art education in schools is
The aim of the two leaders at the conference was
For a humble person,one of the hardest things might be
When you are faced with a serious decision,my suggestion is
The mother believes her duty is
All he wanted after a tiring day was
to build trust between you and your client.
to achieve permanent peace between their two countries.
to build a memorial to the heroes who saved their lives.
to share his love for rock music with his fans.
to be left alone.
to criticise other people.
to inspire students to be creative.
to listen to your own inner voice.
to raise her son to become a man with a noble mind and a generous heart.
匹配句子
Thanks
选修3
Unit1