Unit 1 grammar不定式作表语复习-高中英语人教版（2019）选择性必修第三册.pptx

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1、Unit 1 ArtPeriod 4(Discovering useful structures)不定式作表语1.Learn to identify the usage of the infinitive as the predicative.2.Learn to summarize the different forms of the infinitive.3.Learn to apply the infinitive correctly in real situations.Learning aimsLead inCan you translate them into English?1.

2、眼见为实。3.样样精通，样样松。2.活到老，学到老。To see is to believe.It is never too late to learn.To know everything is to know nothing.主语表语真正主语形式主语主语表语What is infinitives?不定式是 动词的一种。即不定式在句中可以作句子除 之外的大部分句子成分 。Read and think1.To see is to believe.2.He decied to study English hard from them on.3.To learn English well,he g

3、ets up early every morning.4.He has a lot of books to read.5.I asked him to help me with my English.非谓语谓语（主宾表定状补）不定式只有to do 一种形式吗？Read and think1.Mike is going to attend the conference to be held tomorrow.2.He pretended to be sleeping when his father came in.3.I am sorry to have kept you waiting so

4、long.4.It is an honor for me to have been invited to your lecture.5.He was siad to have been living in Beijing for 10 years.主动语态主动语态被动语态被动语态一般式一般式进行式进行式完成式完成式完成进行式完成进行式 to do to be done to be doing to have done to have been done to have been doing/Grammar focus(1)Perhaps the best way to understand W

5、estern 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，Monets aim was to convey the light and movement in the scene.1.动词不定式做表语基本结构：。am/is/are/was/were+不定式2.主语是以 _,_,_

6、duty,suggestion,duty,hope,idea,intention,plan等为中心的名词词组时，一般用动词不定式作表语说明主语的 。way aim purpose内容What I suggest is to put off the meeting till next Friday.What strikes me most is to see her always walk home hurriedly.What he wants to do is to express his thanks for your help.3.当 引导的主语从句作主语时,表语用 。what动词不定式

7、The next step is to make sure that you know exactly what is required.The most important thing about vlogging is to tell a good story.Ctreating a natrual reserve is to protect those endangered species.4.不定式作表语，可用于表示 。目的Her best wish is to put her new ideas into practice.My dream is to be admitted int

8、o a key university.5.当动词所表达的是 行为或 的行为时,通常用动词不定式(短语)作表语。将来有待于实现10Who is to blame for the fire?Something is still to find out.The house is to let.6.动词不定式作表语时，可用 形式表示被动意义。主动My question is where to find the answer.His problem was how to begin.7.作表语时，还可用 加不定式。特殊疑问词8.seem appear remain get prove grow 也可以作

9、系动词后接不定式作表语They appeared (travel)to a lot of places around the world.Listen!The sound seems (come)from the next room.He proved (be)right.It remains (see)whether he is right or wrong.to have travelledto be comingto beto be seenPractice1.You know，my aim is _(lose)100 pounds next year.2.Listen！The musi

10、c seems _(come)from the castle.3.The kid was _(blame)for the broken vase.4.One of the most important things you should do is _(find)out the truth.5.The purpose of education is _(develop)a fine personality in children.6.One of his latest projects has been _(make)plants glow(发发光光)in experiments using

11、some common vegetables.(2020全国卷全国卷阅读阅读D)7.They appear _(be)friends for about 20 years.8.While regularly eating out seems _(become)common for many young people in recent years，its not without a cost.(2018浙江卷语法填空浙江卷语法填空)9.Another way to hide a message is _(use)symbols to stand for specific letters of

12、the alphabet.10.The only thing that interests him is _(dance).to loseto be coming to blame to findto developto maketo have beento have becometo usedancingPracticeI have a close friend,whose ambition is 1_(work）in the computer industry when he grows up.The first thing he plans to do now is 2_(study)h

13、ard.But he has some difficulty in 3_(learn）English.So he turns to his consultant,whose duty is 4_(assist)students to solve the problems.The woman seems5_(understand）him thoroughly.Her suggestion is that he 6_(do）more reading,which will benefit him a lot.Its no use 7_(say）without action.Following thi

14、s suggestion,what he decides to do is 8_（search)for some reading materials and form a habit of 9_（read）.Now everything seems10 _(be)all right,and he begins to enjoy his study and becomes confident.to workto studylearningto assistto understand(should)dosayingto searchreadingto be动词不定式作表语1.基本基本结构：构：系系

15、动词+不定式不定式2.主主语一般是一般是aim,purpose,plan,duty,decision等等或或what引引导主主语从句从句时，表，表语用用动词不定式不定式3.不定式作表不定式作表语常表示常表示目的或者将要做的事目的或者将要做的事或或主主动表被表被动4.作表作表语也可以用也可以用特殊疑特殊疑问词加不定式加不定式主动语态主动语态被动语态被动语态一般式一般式进行式进行式完成式完成式完成进行式完成进行式 to do to be done to be doing to have done to have been done to have been doing/Translation:1.

16、（2022新高考卷应用文）我写信给你的理由是邀请你做客我们的英语节目。2.（2022全国乙卷）作为学生，我的观点是做更多的拓展阅读来积累基础的英语知识并且开拓我们的视野。3.（2022新高考卷读后续写）我想让你知道的就是勇敢地面对这场比赛。4.（2022新高考卷读后续写）你能做的唯一一件事就是努力的追求你想要的东西。The reason why I write to you is to invite you to be the guest of our English program.As a student,my opinion is to do more extensive reading

17、 to accumulate the basic knowledge of English and broaden our horizons.All I wanted you to know is(to)accept the race with a lion heart.The only thing you could do was(to)pursue what you wanted with all your efforts.HomeworkHomework1.Review the language points.2.Finish some other exercise.Thank you!Thank you!Thank you!Thank you!