人教高中英语必修3Unit4-Grammar-The-subject-clause主语从句优秀课件.ppt（纯ppt,可能不含音视频素材）

1、 (主语从句主语从句)Grammar:The subject clauseLearning objectives（学习目标）（学习目标）1.To learn the grammar of this unit-the Subject Clause.2.To grasp the Subject Clause and know how to use it.Noun Clauses(名词性从句名词性从句)Subject Clause (主语从句主语从句)Appositive Clause（同位语从句）（同位语从句）Object Clause（宾语从句）（宾语从句）Predicative Clause（

2、表语从句）（表语从句）RevisionReview the passage“how life began on the earth”and translate the following sentences.1.谁也不知道地球会有别于其他行星谁也不知道地球会有别于其他行星.2.这就是地球之独有特性的初次显现这就是地球之独有特性的初次显现.3.许多人认为这对生命的起源特别重要许多人认为这对生命的起源特别重要.4.没有人懂得这些植物就是许多变化的开始没有人懂得这些植物就是许多变化的开始.Nobody knew that it was going to be different from other

3、 planets.This is how the earth began to show it special qualities.Many people think that this was important for the beginning of life.Nobody understood that these plants were the starts of many changes.Leading-in Answer:What does the underlined part serve as in these sentences?A tree has fallen acro

4、ss the road.You are a student.To find your way can be a problem.Smoking is bad for you.名词名词代词代词动词不定式动词不定式动名词动名词SubjectHis job is important.What he does is important.Compare 主语主语What she said is nothing serious.That we shall be late is certain.Whether he will come tomorrow is not clear.New lesson在复合句

5、中，充当主语的句子，叫主语从句。在复合句中，充当主语的句子，叫主语从句。一一.定义：定义：What is the Subject Clause?（什么叫主语从句？）（什么叫主语从句？）二二.引导主语从句的连接词的用法：引导主语从句的连接词的用法：That price will go up is certain.That they need help very much is quite clear.1.that的用法：的用法：that 引导主语从句只起引导作用，本身引导主语从句只起引导作用，本身无无实际意实际意义，在从句中义，在从句中不不充当任何成分，但充当任何成分，但不能省略不能省略。.It

6、 was not clear whether the solid shape would last or not.Real subject（Subject Clause）Formed subjectWhether the solid shape would last or not was not clear.Conclusion:ifIf2.whether和和if的用法的用法：1）主语从句在句首只能用）主语从句在句首只能用whether,有有it作形式主作形式主语时语时whether/if都可以。都可以。2）whether/if 在从句中在从句中不充当不充当句子成分，句子成分，但但有意义有意义

7、“是否是否”，不能省略。，不能省略。1）连接代词：）连接代词：what(whatever)，who(whoever)，which(whichever)，whom，whose.可以在从句中作主语，宾语表语。可以在从句中作主语，宾语表语。_ he did is right.（什么、无论什么什么、无论什么）_he is is not important.（谁）（谁）_team will win is not clear.（哪一个）（哪一个）_idea will be accepted has not been decided yet.（谁的）（谁的）_he will be back depends

8、on the weather.（什么时候）（什么时候）_we live doesnt matter.（哪里）（哪里）_the pyramids were built was still a mystery.（怎样）（怎样）_dinosaurs died out is still a mystery.（为什么）（为什么）2）连接副词连接副词：when，where，how，why.在从句中做状语。在从句中做状语。3.连接代词和连接副词的用法：连接代词和连接副词的用法：Conclusion:连接代词和连接副词在从句中都连接代词和连接副词在从句中都有有各自的各自的意义意义，也也充当句子成分充当句子成分

9、，不能省略。，不能省略。What/WhateverWho/whomWhichWhoseWhenWhereHowWhyComplete the sentences using that，what,whether,or where.1._ is needed for success is your hard work.4._ we will live tomorrow hasnt been decided yet.3._ it will rain or not is not clear.2._ the earth is a solid ball is known to us all.WhatWhe

10、therThat主语从句作主语时，主语从句作主语时，主句谓语动词主句谓语动词一般用一般用单数形式单数形式。Conclusion:ExercisesWhere1.Where shall we spend the holiday isnt decided.2.Why is he late for the class isnt clear.we shall he isdinosaurs died out 改错练习改错练习3.How did dinosaurs die out is still a mystery.ExercisesConclusion:从句必须用陈述语序。从句必须用陈述语序。由由th

11、at 引导的主语从句有时为了使句子结构平衡引导的主语从句有时为了使句子结构平衡,避免避免“头重脚轻头重脚轻”,常用常用 it 作作形式主语形式主语,而把从句放在而把从句放在后面。后面。例如例如:1.That he will refuse this piece of advice is impossible.=It is a pity that she has made such a mistake.=It is impossible that he will refuse this piece of advice.2.That she has made such a mistake is a

12、pity.注意注意:Can you rewrite the following sentences?（你能改写下面的句子吗？）（你能改写下面的句子吗？）1.That the earth turns around the sun is known to all.2.That price will go up is certain.3.That they are badly in need of help is quite clear.It is known to all that the earth turns around the sun.It is quite clear that they

13、 are badly in need of help.It is certain that price will go up.Pick up one number and finish the task in it,then you can get some scores.12345678910Correct or not?*When the meeting will be held havent been known yet.hasntPay attention:主语从句作主语时，主句谓语主语从句作主语时，主句谓语用用单数单数形式形式 10*If we will have a meeting

14、 hasnt been decided yet.Correct or not?WhetherPay attention:放在主语从句放在主语从句句首句首，表示，表示“是是否否”时，只能用时，只能用whether,不能用不能用if10 Correct or not?Pay attention:此主语从句此主语从句缺少成分缺少成分-宾语，宾语，所以用作成分的所以用作成分的what来引导，而不用来引导，而不用that。What*That she wants to know is when the party will be held.10 Correct or not?Pay attention:由

15、由that引导的主语从句，引导的主语从句，that 不能省略不能省略。That he*He will give up his job surprises all of us.101.It is a question _ the film is worth seeing.2._ we shall attend the meeting hasnt been decided yet.用用whetherif填空填空Whether/ifWhether10Translate the sentence*It is known to us_(马克马克.吐温怎样成吐温怎样成为一位伟大的作家为一位伟大的作家).h

16、ow Mark Twain became a great writer20Translate the sentence*_（她是否出席会议）（她是否出席会议）is not certain.Whether she will attend the meeting20 the cat(do)what What the cat did made the baby cry.makecryMake a sentence30talk aboutthe use of cell phones What they are talking about is the use of cell phones.Make a

17、 sentence30whatIt is reported that Yao Ming got the highest points in the match.Make a sentence30 it，report,get the highest points in the match The Subject Clause2.引导主语从句在引导主语从句在句首句首只能用只能用whether,有有it作形式主语时作形式主语时whether/if都可以。都可以。1.that 在主语从句中在主语从句中不能省略不能省略。3.有时为了使句子有时为了使句子结构平衡结构平衡,避免避免“头重脚轻头重脚轻”,常用

18、常用 it 作形式主语作形式主语,而把从句放在后面。而把从句放在后面。4.主语从句作主语时，主语从句作主语时，谓语动词谓语动词一般用一般用单数形式单数形式。5.从句必须用从句必须用陈述语序陈述语序。Summary:Compare the differences and the similarities among Subject clause,Object clause and Predictive clause.2._ they can solve the question is still unknown.A.If B.Which C.Whether D.What3._ he said a

19、t the meeting astonished everybody.A.Why B.What C.That D.Who4._ is a fact that English is accepted as an international language.A.There B.This C.That D.It1._ we need more practice is quite obvious.A.What B.That C.When D./1.美育包括美术教育和审美教育,文化是美育的底色和灵魂,不能忽视文化精神的培养。2.欣赏中国绘画,应该了解其中计白当黑、浓淡生趣、意境天成等艺术手法和精神追求

20、。3.美育在中国近代历史上是一个很重要的概念,一直承载了爱国救亡、除弊振新的重任。4.当下美育应重传统轻西方,融汇西方与民族、古典与现代的文化,形成好的审美教育体系。5.要推动人工智能规模化应用,就必须推动人工智能与各行业融合创新,在制造、农业、物流、金融等重点行业和领域开展人工智能应用。6.美国各执行机构每年与白宫主管预算科技政策办公室沟通,说明优先推动人工智能发展情况,按时列明计划,可期获得该项目预算优先权。7用金银珠玉来装点堂皇的宫殿庙宇，这种行为使得大量珍贵的人力物力降低为符号的陪衬，只能揭示意义的贫瘠和精神的无力。8让日常的景色转换成大师的杰作，使普通的词语凝结成千古不朽的诗句，这些审美和艺术创造，体现着人的精神世界的富足。9“富”的美应该是一种由内而外的富贵气，它是一种自然流露的美，它得自个人长期的、自觉的涵养，也得自社会的普遍氛围，与金钱没有必然关系。