【课件】Unit+1+Discover+Useful+Structures人教版（2019）选择性必修第三册.pptx

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1、 Discovering useful structures UNIT 1 ARTContents HomeworkIIIIVObserve and DiscoverPractice and ApplyLead in【P5 activity 1】Read these sentences and fill in the blanks using the correct words from the text on pages 2 and 3.1.Perhaps the best _ to understand Western art is to look at the development o

2、f Western painting over the centuries.2.During the Middle Ages,the _ of Western art was to teach people about Christianity.3.In this work,Monets _ was to convey the light and movement in the scene.4._ was no longer show reality,but instead to ask the question,“What is art?”waypurposeaimWhat they att

3、empted to do动词不定式动词不定式 在句中作表语在句中作表语1.结构 动词不定式可以放在 be和 become,sound,taste 等_后 面作表语，由“to+动词原形”构成。2.功能Perhaps _ the development of Western painting over the centuries.也许，了解西方艺术的最好方法就是回顾若干个世纪以来西方 绘画的发展。_ your father for his opinion.我的建议是问问你父亲的意见。系动词系动词the best way to understand Western art is to look at

4、 My suggestion is to askObserve and Discover动词不定式动词不定式动词不定式作表语动词不定式作表语Tip 1：主语是以 _ _ 等为中心的名词词组时，或者以 _ 表示时，一般用动词不定式作表语说明主语的内容。problem,task,wish,aim,suggestion,duty,hope,idea,intention,plan,purpose,way动词不定式动词不定式difficulty,experience,job,method,what引导的名词性从句有时，根据表达的需要，在作表语的不定式前，还可添加疑问有时，根据表达的需要，在作表语的不定式

5、前，还可添加疑问代词或疑问副词，包括代词或疑问副词，包括 what,who,how,when,where 等。等。例如：例如：The problem was how to begin.Observe and DiscoverTip 2：当主语包含定语从句且其先行词为代词_或者主语被_或形容词_修饰时，其后可接“系动词+不定式”作句子的表语。Observe and DiscoverAll he wanted was _.他只想一个人待着。The least I can do to help is _.我所能帮的最起码的事是借给她一辆车。to be left alone to lend her a

6、 car allonly,first,one,least最高级动词不定式动词不定式Tip 3：动词不定式作表语可用于被动语态，相当于 _，具有情态意义。The regulations are _.=The regulations must be observed.You are _.=You should be rewarded.to be observed to be rewardedcan/could,Observe and Discover动词不定式动词不定式should,ought to,mustTip 4：动词不定式作表语可表示“_”等。You must be patient and

7、 persistent if you are _.(愿望)如果你想成功，你必须有耐心和恒心。You are _ a face-to-face talk with them.(劝告)你必须得和他们进行一次面对面的谈话。意愿、禁止、意愿、禁止、预期的结果预期的结果to succeed to have同意、安排、命令、决定、劝告同意、安排、命令、决定、劝告、愿望愿望、Observe and Discover动词不定式动词不定式Tip 5：某些动词不定式(短语)作表语时，需用主动形式表示_。Who is _ the fire?谁应为这场大火承担责任？The house is _.此房出租。to bla

8、me for to let被动意义被动意义Observe and Discover动词不定式动词不定式动词不定式作表语省略动词不定式作表语省略to的情况的情况 Observe and Discover3.晚上他做过的唯一的事是读报纸。All we need to do is live each day with hope.What they attempted to do was draw public attention.In the evening the only thing he did was read the newspaper.动动词词不不定定式式(短短语语)作作表表语语时时，一

9、一般般情情况况下下不不定定式式符符号号to不不能能省省略略，但但当当主主句句主主语语部部分分含含有有实实义义动动词词do的的某某种种形形式式时时，可可省省略略作作表表语语的动词不定式（短语）里的不定式符号的动词不定式（短语）里的不定式符号to:1.我们需要做的就是怀有希望过好每一天。_2.他们试图做的是引起公众关注。_Observe and Discover1.动词不定式和动词不定式和v-ing作表语时，要注意与句子的主语在形式上保持一致，作表语时，要注意与句子的主语在形式上保持一致，即若句子的主语为即若句子的主语为v-ing，则表语也应使用，则表语也应使用v-ing；若主语为动词不定式，；若

10、主语为动词不定式，则表语也应使用动词不定式。则表语也应使用动词不定式。To see is to believe.=Seeing is believing.动词不定式作表语和动词不定式作表语和v-ing作表语的区别作表语的区别2.动词不定式和动词不定式和v-ing作表语时可换用，但以下情况除外作表语时可换用，但以下情况除外:当动词所表达的是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某一特定的行为，尤其是将来的行为或有待于实现的行为行为时，通常用时，通常用动词不定式作表语动词不定式作表语。Her best wish is to put her new ideas into pr

11、actice.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作表语。My favorite sport is swimming.What I hate most is being laughed at.单句语法填空单句语法填空1.The most meaningful thing he wants to do is _(help)the poor.2.This year,his plan is _(make)some changes in the teaching method.3.What I suggest is _(start)work at once.4.One o

12、f her hobbies is _(collect)stamps.5.I think it is your brother who is _(blame)for the accident.helpto maketo startcollectingto blame即学即练Practice and ApplyPractice and Apply即学即练6.You are _(reward)if you have made a breakthrough.7.Through my years of school life,Ive learned that if we are _(make)a dif

13、ference in life,its of great importance that we should begin with small things.8.The students trust her very much;as a result,her advice is _(influence)their decisions.to be rewarded to make to influence Practice and Apply 即学即练.翻译句子翻译句子1.对敌人仁慈就是对人民对敌人仁慈就是对人民残残酷。酷。_2.我的主要目的是指出这件事的困难。我的主要目的是指出这件事的困难。_

14、3.我建议推迟会议。我建议推迟会议。_To be kind to the enemy is to be cruel to the people.My chief purpose is to point out the difficulties of the matter.What I would suggest is to put off the meeting.【P5 activity 2】Match the sentence halves.Practice and Apply【P5 activity 2】Underline the nouns or clauses used as the

15、subject in each sentence.Explain the meanings of the complete sentences.1.The young singers intention of performing the song was to share his love for rock music with his fans.2.The best way to do business is to build trust between you and your client.3.What the survivors attempted to do was to buil

16、d a memorial to the heroes who saved their lives.4.The main purpose of art education in schools is to inspire students to be creative.Practice and Apply5.The aim of the two leaders at the conference was to achieve permanent peace between their two countries.6.For a humble person,one of the hardest t

17、hings might be to criticise other people.7.When you are faced with a serious decision,my suggeston is to listen to your own inner voice.8.The mother believes her duty is to raise her son to become a man with a noble mind and a generous heart.9.All he wanted after a tiring day was to be left alone.Pr

18、actice and ApplyChoose five sentences from Activity 2 on page 5 and above examples,and rewrite them according to your own idea.Practice and ApplyShare the sentences with your partner and then with the class.【P5 Activity 3】Make conversations using the following questions and sentence patterns.1.Whats

19、 your biggest dream/ambition in life?2.How are you going to make your dream come true?3.How are you going to achieve your goal?4.Do you have any plans?5.What might be difficult for you?6.How are you going to deal with.?Work in pairsPractice and Applysample conversationA:Whats your biggest ambition i

20、n life?B:My biggest ambition in life is to run an international marathon in Beijing.A:Wow,that sounds great!How are you going to make your dream come true?B:I should practice,practice,practice and never give up!A:How are you going to achieve your goal?Do you have any plans?B:Yes,my plan is to run my

21、 first marathon in two years time.I think all I have to do is start running shorter races,and then get used to longer and longer races.A:What might be difficult for you?B:I think one of the hardest things might be training my body and mind to endure such a long race.A:How are you going to deal with that?B:I guess the best way to deal with that is to train slowly but with great focus,get a lot of support from friends and family,always be positive,and keep my long-term goal in mind.sample conversation