人教版（2019）选择性必修第三册Art Discover useful structures 课件（24张PPT）

(共24张PPT)
Unit 1 Art
Learning about language
动词不定式作表语
Infinitive as the predicative
To learn the usage of infinitive as predicative.
To use the grammar flexibly in the real situation.
(1)Perhaps the best way to understand Western art is to look at the development of Western painting over the centuries.
(2)During the Middle Ages，the purpose of Western art was to teach people about Christianity.
(3)In this work，Monet’s aim was to convey the light and movement in the scene.
(4)What they attempted to do was no longer show reality, but instead to ask the question, “What is art ”
在以上句子中，动词不定式都是作 ，表示具体的事情或将要发生的事情。
表语
感知原文
主 系 表
…the best way to understand Western art
…, Monet’s aim
to teach…
was
What they attempted to do
was
…(to) show…
…, the purpose of Western art
to convey…
is
was
to look…
Summary
一. 动词不定式(短语)的结构。
am/is/are/was/were + (not) to do
不定式充当表语
表主动
表将来
二. 动词不定式(短语)作表语的意义。
讨论归纳一：主语是以________________ , _________, aim, duty, suggestion, duty, hope, idea, intention, plan等为中心的名词词组时，或以what引导的名词性从句，一般用动词不定式作表语表示其内容。
1. Perhaps the best way to understand Western art is to look at the development of Western painting over the centuries.
2. During the Middle Ages, the purpose of Western art was to teach people about Christianity.
the best way to do
purpose
三. 动词不定式(短语)作表语的用法。
讨论归纳二：动词不定式在表语中表示______。
目的
The next step is to make sure that you know what is needed.
1.To be kind to the enemy is to be cruel to the people.
2.To learn a language is to use it.
讨论归纳三：主语是不定式时，表语往往是_ ______。
不定式
前是条件，后是结果。
1.The problem was how to begin.
2.Where to go tomorrow has not been decided.
3. He has to learn how to use this machine.
讨论归纳四：
疑问词+ to do 结构，在句中可作____________。
主﹑宾﹑表
1.Who is to blame for the fire.
2.Something is still to find out.
讨论归纳五：
动词不定式作表语时，可用_ __形式表示被动意义。
主动
1. all作主句主语,其后的定语从句中含有实义动词do的某种形式时。
All we need to do is live each day with hope.
2.what引导的从句作主语,从句中含有实义动词do的某种形式时。
What I want to do is take a holiday right away.
3.(主句)主语被only, first, one, least或形容词最高级修饰, 且其后作定语的从句或短语中含有实义动词do的某种形式时。
In the evening the only thing he did was read the newspaper
动词不定式(短语)作表语省略to的情况
1.动词不定式(短语)和v-ing(短语)作表语时,要注意与句子的主语在形式上保持一致,即若句子的主语为v-ing(短语)， 则表语也应使用ving(短语)；若主语为动词不定式(短语),则表语也应使用动词不定式(短语)。
eg: To see is to believe. = Seeing is believing.
眼见为实。
四. 动词不定式(短语)作表语和v-ing (短语)作表语的区别。
2.动词不定式(短语)和v-ing(短语)作表语时可换用,但以下情况除外:
(1)当动词所表达的是某一特定的行为,尤其是将来的行为或有待于实现的行为时,通常用动词不定式(短语)作表语。
Her best wish is to put her new ideas into practice.
(2)若动词所表达的并不强调动作,而是表示主语的内容，则通常用v-ing(短语)作表语。
My favorite sport is swimming.
What I hate most is being laughed at.
一. 动词不定式(短语)的结构。
二. 动词不定式(短语)作表语的意义。
三. 动词不定式(短语)作表语的用法。
动词不定式（短语）作表语省略to的情况：
四. 动词不定式(短语)作表语和v-ing (短语)作表语的区别。
all, what, only, first, one, least或形容词最高级修饰
1.主语是以the best way to do , purpose, aim, duty, suggestion, duty, hope, idea, intention, plan等为中心的名词词组时，或以what引导的名词性从句，一般用动词不定式作表语表示其内容。
2.动词不定式在表语中表示目的。
3.主语是不定式时，表语往往是不定式。
4.疑问词+ to do 结构，在句中可作主宾表。
5.动词不定式作表语时，可用主动形式表示被动意义。
Match the sentence halves and underline the key words of the subject in each sentence.
1 The young singer’s intention of performing the song was
2 The best way to do business is
3 What the survivors attempted to do was
A. to build trust between you and your client.
B to achieve permanent peace between their two countries.
C. to build a memorial to the heroes who saved their lives.
D. to share his love for rock music with his fans.
adj.永久的;长久的
adj.纪念的
n.纪念碑;纪念品
4 The main purpose of art education in schools is
5 The aim of the two leaders at the conference was
6 For a humble person, one of the hardest things might be
7 When you are faced with a serious decision, my suggestion is
8 The mother believes her duty is
9 All he wanted after a tiring day was
B to achieve permanent peace between their two countries.
E. to be left alone.
F. to criticize other people.
G. to inspire students to be creative.
H. to listen to your own inner voice.
I. to raise her son to become a man with a noble mind and a generous heart.
adj.谦逊的;虚心的
v.批评;评价
3. Medical experts say the most effective way to prevent the spread of disease is for people ________(wash) their hands with soap and water.
4. The next step is ________ sure that you know exactly what is required.
5. The purpose of education is __________ (develop) a fine personality in children.
to wash
to make
to develop
1. The motto of the little boy who was suffering from a muscle disease was _______ (live) one day at a time.
2. It is you, including your cousin, that ____________ (blame) for the loss of the golden chance.
to live
are to blame
Complete the sentences.
1. My chief end is __________________and my people. 我的首要目标是为国为民服务。
2. Kurz says the aim is ________________________or sneezing on others and infecting them. 库尔茨说, 目标是为了防止人们朝着他人咳嗽或打喷嚏并感染他人。
3. The best way to accomplish this goal is __________________________.
实现这一目标的最好办法是尽量多团结人。
4.Their purpose _______________________and a strong economy.
他们的目的是要建立一个公平的社会和一个强大的经济体。
5. 我建议马上开始工作. What I suggest _______________at once.
6. 她应该为所发生的事情受到责备。_________________ for what has happened.
7. 你要做的事情是面对现实。What you need to do ________________.
8. 她的爱好之一是集邮. One of her hobbies_____________________.
1. My chief end is __________________and my people. 　
我的首要目标是为国为民服务。
2. Kurz says the aim is ________________________or sneezing on others and infecting them.
库尔茨说, 目标是为了防止人们朝着他人咳嗽或打喷嚏并感染他人。
3. The best way to accomplish this goal is __________________________.
实现这一目标的最好办法是尽量多团结人。
4.Their purpose _______________________and a strong economy.
他们的目的是要建立一个公平的社会和一个强大的经济体。
to serve my country
to prevent people coughing
to unite as many people as possible
is to build a fair society
5. 我建议马上开始工作.
What I suggest _______________at once.
6. 她应该为所发生的事情受到责备。
_________________ for what has happened.
7. 你要做的事情是面对现实。
What you need to do ________________.
8. 她的爱好之一是集邮.
One of her hobbies_____________________.
She is to blame
is face the facts
is collecting stamps
is to start work
Review and finish exercise of 课时作业2.