Unit 1 Art Discover useful structures ppt课件-（2022新）人教版高中英语选择性必修第三册 .pptx

1、 动词不定式作表语动词不定式作表语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 purpos

2、e of Western art was to teach people about Christianity.(3)In this work，Monets 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，动词不定式都是在以上句子中，动词不定式都是作作 ，表示具体的事情或将要发生表示具体的事情或将要发生的事情。的事情

3、。表语表语感知原文感知原文主主系系表表the best way to understand Western art, Monets aim to teachwasWhat they attempted to do was(to) show, the purpose of Western artto conveywasto look一一. 动词不定式动词不定式(短语短语)的结构。的结构。am/is/are/was/were + (not) to do 不定式充当表语不定式充当表语表主动表主动表将来表将来二二. 动词不定式动词不定式(短语短语)作表语的作表语的意义。意义。讨论讨论归纳一：归纳一：主

4、语是以主语是以_ , _, aim, duty, suggestion, duty, hope, idea, intention, plan等为中心的等为中心的名词词组时，或以名词词组时，或以what引导的名词性从句，一般用动词不引导的名词性从句，一般用动词不定式作表语表示其内容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

5、 purpose of Western art was to teach people about Christianity. 三三. 动词不定式动词不定式(短语短语)作表语的用法。作表语的用法。讨论讨论归纳二：动词不定式在表语中表示归纳二：动词不定式在表语中表示_。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.讨论讨论归纳三：主语是不定式时，表

6、语往往是归纳三：主语是不定式时，表语往往是_ _。 前是条件，后是结果。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. 讨论讨论归纳四：归纳四：疑问词疑问词+ to do 结构，在句中可作结构，在句中可作_。1.Who is to blame for the fire. 2.Something is still to find out.讨论讨论归纳五：归纳五：动词不定式作表语时，可用动词

7、不定式作表语时，可用_ _形式表示被动意义。形式表示被动意义。1. all作主句主语作主句主语,其后的定语从句中含有其后的定语从句中含有实义动词实义动词do的某种形式的某种形式时。时。All we need to do is live each day with hope.2.what引导的从句作主语引导的从句作主语,从句中含有从句中含有实义动词实义动词do的某种形式的某种形式时。时。 What I want to do is take a holiday right away.3.(主句主句)主语被主语被only, first, one, least或形容词最高级修饰或形容词最高级修饰, 且

8、其后作且其后作定语的从句或短语中含有定语的从句或短语中含有实义动词实义动词do的某种形式的某种形式时。时。 In the evening the only thing he did was read the newspaper动词不定式动词不定式(短语短语)作表语省略作表语省略to的情况的情况1.动词不定式动词不定式(短语短语)和和v-ing(短语短语)作表语时作表语时,要注意与句子的主语在要注意与句子的主语在形式上保持一致形式上保持一致,即若句子的主语为即若句子的主语为v-ing(短语短语)， 则表语也应使用则表语也应使用ving(短语短语)；若主语为动词不定式；若主语为动词不定式(短语短语

9、),则表语也应使用动词不定则表语也应使用动词不定式式(短语短语)。eg: To see is to believe. = Seeing is believing. 眼见为实。眼见为实。四四. 动词不定式动词不定式(短语短语)作表语和作表语和v-ing (短语短语)作表语的区别。作表语的区别。2.动词不定式动词不定式(短语短语)和和v-ing(短语短语)作表语时可换用作表语时可换用,但以下情况除外但以下情况除外:(1)当动词所表达的是当动词所表达的是某一特定的行为某一特定的行为,尤其是将来的行为或有待于尤其是将来的行为或有待于实现的行为实现的行为时时,通常用通常用动词不定式动词不定式(短语短语)

10、作表语作表语。 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若动词所表达的并不强调动作,而是而是表示主语的内容，则通常用表示主语的内容，则通常用v-ing(短语短语)作表语。作表语。My favorite sport is swimming.What I hate most is being laughed at.一一. 动词不定式动词不定式(短语短语)的的结构结构。二二. 动词不定式动词不定式(短语短语)作表语的作表语的意义。意义。三三. 动词不定式动词不定式(短语短语)作表语的作表语的用法用法。动词

11、不定式（短语）作表语省略动词不定式（短语）作表语省略to的情况：的情况：四四. 动词不定式动词不定式(短语短语)作表语和作表语和v-ing (短语短语)作表语的区别。作表语的区别。all, what, only, first, one, least或形容词最高级修饰或形容词最高级修饰1.主语是以主语是以the best way to do , purpose, aim, duty, suggestion, duty, hope, idea, intention, plan等为中心的名词词组时，或以等为中心的名词词组时，或以what引导的名词性从句，一般用引导的名词性从句，一般用动词不定式作表语

12、表示其内容动词不定式作表语表示其内容。2.动词不定式在表语中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。主语是不定式时，表语往往是不定式。4.疑问词疑问词+ to do 结构，在句中可作主宾表结构，在句中可作主宾表。5.动词不定式作表语时，可用动词不定式作表语时，可用主动形式表示被动意义。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 singers intention of performing the

13、song was2 The best way to do business is 3 What the survivors attempted to do wasA. 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

14、永久的;长久的长久的adj.纪念纪念的的n.纪念碑纪念碑;纪念品纪念品4 The main purpose of art education in schools is5 The aim of the two leaders at the conference was6 For a humble person, one of the hardest things might be7 When you are faced with a serious decision, my suggestion is8 The mother believes her duty is9 All he wante

15、d after a tiring day wasB 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.谦逊的谦逊的;虚虚心的心的v.批

16、评批评;评价评价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

17、 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 blameComplete the sentences.1. My chief end is _and my people. 我的首要目标是为国为民服务。我的首要目标是为国

18、为民服务。2. Kurz says the aim is _or sneezing on others and infecting them. 库尔茨说库尔茨说, 目标是为了防止人们朝着他人咳嗽或打喷嚏并感染他人。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。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。他们的目的是要建立一个公平的社会和一个

19、强大的经济体。5. 我建议马上开始工作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。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。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。我的首要目标是为国为民服务。2. Kurz says the aim is _or sneez

20、ing on others and infecting them. 库尔茨说库尔茨说, 目标是为了防止人们朝着他人咳嗽或打喷嚏并感染他人。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。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。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 countryto prevent p

21、eople coughingto unite as many people as possibleis to build a fair society5. 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 blameis face the factsis collecting stampsis to start workReview and finish exercise of 课时作业课时作业2.