高中英语名词性从句教学课件PPT课件下载推荐.ppt

1、连接词有：that whether 和和 lf2.连接代词有：连接代词有：who whom whose which what 等等 3.连接副词有：连接副词有：when where why how 等等 另外另外 whatever whoever whichever等等 也可也可 以引导以引导主语和宾语两种从句主语和宾语两种从句。名词性从句可以表示：事实和问题。名词性从句中的名词性从句中的“that”没有词义，也不作任何成没有词义，也不作任何成分。分。1.主语从句：从句在句中充当主语成分主语从句：从句在句中充当主语成分1）.That he will succeed is certain.2）W

2、hether he will go there is not known.3）What he said is not true.4）Where he hid the money is to be found out.5）Whoever comes is welcome.6）Its certain that he will succeed.7）How we can help the twins will be discussed at the meeting.8）When theyll start the project has not been decided yet.It 的用法：的用法：（

3、形式主语）（形式主语）It possible/important/necessary/clear that很可能很可能/重要的是重要的是/必要的是必要的是/很清楚很清楚 It said/reported that.据说据说/据报道据报道 Its been announced/declared that.已经通知已经通知/宣布宣布 It seems/appears/happens.that显然、明显、显然、明显、碰巧碰巧.Its no wonder that并不奇怪并不奇怪/无疑无疑 Its a pity/a fact/a common knowledge（众所周知）众所周知）/a common

4、 saying.（俗话说）俗话说）注注 意：意：1.What you left are only several old books.2.What you said is of great importance.3.What he says and does doesnt concern me.4.What he says and does dont agree.“if”不能引导主语从句，应有不能引导主语从句，应有“whether”引引导。导。主语从句的主语从句的“that”一般不能省。一般不能省。“what”引导主语从句时，谓语动词：引导主语从句时，谓语动词：1）常与其后的名词作表语一致）常

5、与其后的名词作表语一致 2）根据句子的语境而定。）根据句子的语境而定。1._ he made an important speech at the meeting was true.2.A.That B.Why C.What D.How 2._well go camping tomorrow depends on the weather.A If B Whether C That D Where 3._ is known to us all is that America is a developed country_the First World.a.Which;belong to b.As

6、,belonged to b.c.What;belonging to d.It;belonging to4.Its known to us all _ a form of energy.A.water is B.that water is C.is water D.that water to 5.It worried her a bit _ her hair was turning gray.A.whether B.That C.what D.when6.What I say and think _ none of your business.A.is B.are C.has D have2.

7、宾语从句：从句在句中充当宾语成分（宾语从句：从句在句中充当宾语成分（可以作谓语可以作谓语动词、介词、不定式等非谓语动词的宾语）动词、介词、不定式等非谓语动词的宾语）连词：连词：that,whether，if （that 常可省略）常可省略）who,what,which,whoever,whatever,when where why how1）.They know that the habit will kill them.2）.It all depends on whether they will support us.3）He asked how much I paid for the vi

8、olin.4）.He made it clear to the public that he did an important and necessary job.5）.I find it necessary that we should do the homework.注注 意：1、当主句的谓语动词是一般现在时或一般将来时，宾当主句的谓语动词是一般现在时或一般将来时，宾语从句的谓语动词可以用所需要的任何一种时态。语从句的谓语动词可以用所需要的任何一种时态。2、当主句的谓语动词是一般过去时，宾语从句的谓语、当主句的谓语动词是一般过去时，宾语从句的谓语 动词要用相应的过去时态，但当宾语从句叙述的

9、内容动词要用相应的过去时态，但当宾语从句叙述的内容 为客观真理时，仍然用一般现在时。为客观真理时，仍然用一般现在时。The teacher told his class that light _ faster than sound.travels1.The radio says it _ cloudy tomorrow.（be）2.The headmaster hopes everything _ well.（go）3.Tom says that they _ （play）basketball at six oclock yesterday evening.4.I hear they _ （r

10、eturn）it already.5.He said that they _ members of the Party since 1948.（be）will be goes were playing have returned had been 6.I didnt know what time he _ the letter.（write）7.Could you tell me who _ away the book already?（take）8.Ling Feng told me he _ to the Great Wall several times.（be）wrote has tak

11、en had been 3.表语从句：从句在句中充当表语成分，一般放在连表语从句：从句在句中充当表语成分，一般放在连系动词之后系动词之后.作用：对主语进行解释说明。作用：连接词：that/whether/as if/as though（if 不引导不引导 表语从句表语从句）连接代词：连接代词：who/whom/whose/which/what 连接副词：连接副词：when/where/why/how/because The question is whether we can rely on him.Thats because we were in need of money at that

12、time.He looked as if he was going to cry.Thats why I was late.注注 意：1.在表语从句中，表在表语从句中，表“是否是否”时，只能用时，只能用“whether”不能用不能用“If”。2.一般情况下，一般情况下，“that”不能省。不能省。3.It is/was because.4.It is/was why.5.3.The reason（why/for）is/was that.6.4 The reason is because/whythat .1.Thats _ the Party called on us to do.A.why

13、B.what C.how D.that 2.The reason is _ he is unable to operate the machine.A.because B.why C.that D.Whether3.That is _ they separated.A.that B.what C.which D.where 4.Jane is no longer _ she was four years ago.A.what B.which C.that D.when 4 同位语从句：从句在句中充当同位语成分，其一般跟同位语从句：从句在句中充当同位语成分，其一般跟在一些抽象名词（在一些抽象名词

14、（idea；belief；fact；truth；problem；news 等）后面，对名词作进一步解释说明等）后面，对名词作进一步解释说明.同位语从句常用同位语从句常用 that 引导或用连接副词引导或用连接副词when/where/why/how/whether 1）The idea that computers can recognize human voices surprises many people.2）Word came that Napoleon himself was coming to inspect them.3）.Sydney kept his promise that he would always do anything he could for Lucie to make sure of her happiness.I have no idea when he will be back.how he can get the treasure.where the concert will be hold.who can