单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,(,主语从句,),Unit 4 Astronomy:,the science of the stars,Grammar:,The subject clause,(主语从句)Unit 4,1,Learning objectives,（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.,Learning objectives（学习目标）1.To,2,Noun Clauses,(,名词性从句,),Subject Clause,(,主语从句,),Appositive Clause,（同位语从句）,Object Clause,（宾语从句）,Predicative Clause,（表语从句）,Revision,Noun ClausesSubject ClauseAppo,3,Review the passage“how life began on the earth”,and translate the following sentences.,谁也不知道地球会有别于其他行星,.,这就是地球之独有特性的初次显现,.,许多人认为这对生命的起源特别重要,.,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 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.,Review the passage“how life b,4,Leading-in,Answer:What does the underlined part serve as in these sentences?,A tree,has fallen across the road.,You,are a student.,To find your way,can be a problem.,Smoking,is bad for you.,名词,代词,动词不定式,动名词,Subject,Leading-in Answer:What do,5,His job,is important.,What he does,is important.,Compare,主语,His job is important.What he d,6,What she said,is nothing serious.,That we shall be late,is certain.,Whether he will come tomorrow,is not clear.,New lesson,在复合句中，充当主语的句子，叫主语从句。,一,.,定义：,What is the Subject Clause?,（什么叫主语从句？）,What she said is nothing serio,7,二,.,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：,that,引导主语从句只起引导作用，本身,无,实际意义，在从句中,不,充当任何成分，但,不能省略,。,二.引导主语从句的连接词的用法：That price,8,.,It,was not clear,whether the solid shape would last or not.,Real subject,（,Subject Clause,）,Formed subject,Whether the solid shape would last or not,was not clear.,Conclusion:,if,If,2.whether,和,if,的用法,：,1,）主语从句在句首只能用,whether,有,it,作形式主语时,whether/if,都可以。,2,）,whether/if,在从句中,不充当,句子成分，,但,有意义,“是否”，不能省略。,.It was not clear whether the,9,1,）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。,_,he did,is right.,（,什么、无论什么,）,_he is,is not important.,（谁）,_team will win,is not clear.,（哪一个）,_idea will be,accepted,has not been decided yet.,（谁的）,_,he will be back,depends on the weather.,（什么时候）,_we live,doesnt matter.,（哪里）,_the pyramids were built,was still a mystery.,（怎样）,_dinosaurs died out,is still a mystery.,（为什么）,2,）,连接副词,：,when,，,where,，,how,，,why.,在从句中做状语。,3.,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,有,各自的,意义,，,也,充当句子成分,，不能省略。,What/Whatever,Who/whom,Which,Whose,When,Where,How,Why,1）连接代词：what(whatever)，who(,10,Complete 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.,What,Whether,That,主语从句作主语时，,主句谓语动词,一般用,单数形式,。,Conclusion:,Exercises,Where,Complete the sentences using t,11,1.Where shall we spend the holiday isnt decided.,2.Why is he late for the class isnt clear.,we shall,he is,dinosaurs died out,改错练习,3.How did dinosaurs die out is still a mystery.,Exercises,Conclusion:,从句必须用陈述语序。,1.Where shall we spend the hol,12,由,that,引导的主语从句有时为了使句子结构平衡,避免,“,头重脚轻,”,常用,it,作,形式主语,而把从句放在后面。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 pity.,注意,:,由that 引导的主语从句有时为,13,Can you rewrite the following sentences?,（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 are badly in need of help.,It is certain,that price will go up,.,Can you rewrite the following,14,Pick up one number and finish the task in it,then you can get some scores.,1,2,3,4,5,6,7,8,9,10,Game Time!,Pick up one number and fi,15,Correct or not?,*,When the meeting will be held,havent been known yet.,hasnt,Pay attention:,主语从句作主语时，主句谓语用,单数,形式,10,Correct or not?*When the meeti,16,*,If we will have a meeting,hasnt been decided yet.,Correct or not?,Whether,Pay attention:,放在主语从句,句首,，表示“是否”时，只能用,whether,不能用,if,10,*If we will have a meeting ha,17,Correct or not?,Pay attention:,此主语从句,缺少成分,-,宾语，所以用作成分的,what,来引导，而不用,that,。,What,*,That she wants to know,is when the party will be held.,10,人教高中英语必修,3Unit4 Grammar The subject clause,主语从句,PPT,课堂课件,(29,页,),（精品）,人教高中英语必修,3Unit4 Grammar The subject clause,主语从句,PPT,课堂课件,(29,页,),（精品）,Correct or not?Pay attention,18,Correct or not?,Pay attention:,由,that,引导的主语从句，,that,不能省略,。,That,he,*,He will give up his job,surprises all of us.,10,人教高中英语必修,3Unit4 Grammar The subject clause,主语从句,PPT,课堂课件,(29,页,),（精品）,人教高中英语必修,3Unit4 Grammar The subject clause,主语从句,PPT,课堂课件,(29,页,),（精品）,人教高中英语必修,3Unit4 Grammar The subject clause,主语从句,PPT,课堂课件,(29,页,)-,精品