高中英語 主語從句課件共17張

1、His job,is important,What he does,is important,主語從句的定義,主語,在句中充當主語的從,句叫做主語從句,The subject clause,主語從句,主語從句,謂語,主語從句的句序,it,形主,that,真主,1That he will come is certain,2Whether it will please them is not easy to say,3What seems easy to some people seems difficult to others,4Which side will win is not clear,

2、5Why he did it remains a mystery,6When they will start is not known yet,7How he became a great scientist is known to us all,8Who will take part in the meeting has not been decided,9Whoever breaks the law will be punished,10Where she is from is unknown,Find the subject clauses in the following senten

3、ces,and think about what are the,connectors,連接詞,主語從句的引導詞,連詞,that , whether,連接代詞,who(ever), whom(ever,which(ever), what(ever,連接副詞,where ,when ,why ,how,What,與,that,引導主語從句,規(guī)則,what,引導名詞性從句時在從句,中,充當句子成分,如主語,賓語,表語,而,that,則不然,它在句子中,只起連接作用,但不能,省略,1)_you said yesterday is right,2) _she is still alive is a g

4、reat news to,all of us,What,That,主語從句的規(guī)則,注意,由,that,引導的主語從句有時為了使句,子結(jié)構(gòu)平衡,避免,頭重腳輕,常用,it,作,形式,主語,而把從句放在后面,例如,1,That,he will refuse this piece of advice is,impossible,_,_,2,That they should like each other,is natural,_,it,為形式主語,It,is natural,that,they should like each other,It,is impossible,that,he will

5、refuse this piece,of advice,這樣就構(gòu)成了下面一些常用句型,1) It is + n.,從句,It is a pity/shame that,遺憾的是,It is a surprise that,令人驚奇的是,It is a fact that,是事實,It is common knowledge that,是常識,_,很遺憾,we lost the match,_,這是事實,he cheated in the,exam,It is a pity that,It is a fact that,2) It is + adj.,從句,Its certain that,肯定

6、,It is possible that,很可能,It is unlikely that,不可能,It is obvious that,很明顯,It is necessary important natural,that,_,很可能,she will come,back tomorrow,_,很明顯,this measure is,effective,(should) +do,It is possible that,It is obvious that,It,was not clear,whether,the solid shape,would last or not,Subject Clau

7、se,Subject,Formed Subject,Whether,the solid shape would last or not,was not clear,Real,引導,主語從句在句首只能用,whether,有,it,作形式主語的,whether/if,都可以,Conclusion,if,If,主語從句的規(guī)則,例,3,When he will come,are,a puzzle,正,When he will come,is,a puzzle,規(guī)則四,含主語從句的主句謂語動詞多用,單數(shù)第三人稱形式,主語從句的規(guī)則,找出下列句子中的錯誤，并總結(jié)規(guī)律,例,1.When will he co

8、me is not known,規(guī)則一,主語從句一律用陳述語序,即主語在前，謂語在后,正,When he will come,is not known,2.Where will he go is not yet fixed,正,Where he will go,is not yet fixed,3. Why was Lily late is not important,正,Why Lily was late is not important,主語從句的規(guī)則,1. What he needs,is,that book,2. What he needs,are,some books,規(guī)則四,wha

9、t,引導的主語從句，可根據(jù),表語決定主句動詞的單復數(shù)形式,what,用法較特殊，需要記住。,Consolidation,學法指導,依據(jù),缺什么補什么,原則確定正確的,連詞,所謂“缺什么補什么”是指,從,句,與,連詞,之間的關(guān)系。如果句子中缺,主語,指人用,who,指,物,用,what,如,缺,賓,語，指,人,用,whom,指,物,用,what,如缺,時間狀語,用,when,地點狀語,用,where,原因狀語,用,why,方式狀語,用,how,定語,用,what,或,which,什么,都不缺,用,that,Wether,表“是否,1,用,that / whether / if/ /where /

10、 how / when /why,who /what/which/ how much,etc,來連接主語從句,Summary,Subject Clause,3,引導主語從句在,句首只能用,whether,有,it,作形式主語的,whether/if,都可以,2,That,在主語從句中,不能省略,4,有時為了使句子,結(jié)構(gòu)平衡,避免,頭重腳,輕,常用,it,作形式主語,而把從句放在后,面,4,種句型,5,主語從句作主語時，謂語動詞一般用,單數(shù),形式,1,What you left,are,only several old,books,2,What you said,is,of great importance,6,主語從句中用陳述語序,7,what,引導主語從句時，謂語動詞,常與其后的名詞作表語一致,且根據(jù)句子的語境而定,eg,8,用于,It is important / natural / necessary / impossible,that,句型中,主語從句應(yīng)使用虛擬語氣,用