1、Unit 1 A land of diversity Unit 1 Section Learning about Language栏目导航 课堂深度拓展课后限时作业课末随堂演练 名词性从句 一、在句中起名词作用的从句叫名词性从句,它包括主语从句、宾语从句、表语从句和同位语从句。如:Whether he will come here or not is unimportant to me.(_从句)他是否来这对我来说不重要。I dont know what he means.(_从句)我不知道他是什么意思。课堂深度拓展考点 语法细解 Im glad that you are here.(_从句)
2、我很高兴你能在这。The teacher is satisfied with what you have done.(_ 从句)老师对你所做的很满意。That was because he was ill.(_从句)那是因为他病了。The news that he got killed in the race surprised us all.(_从句)他在比赛中死亡的消息震惊了我们所有人。连接词 词义 功能that无词义不作成分,只起连接作用whether/if是否不作成分,起连接作用what,which什么,哪个作主语、宾语、表语who,whom,whose谁,谁的作主语、宾语、定语whe
3、n,where,how,why什么时候,地方,怎么样,为什么作状语how many/much多少作定语how soon/often/long/much多久,多久一次,多长,多么作状语二、引导名词性从句的连接词 whatever=anything that无论什么作主语、宾语、表语、定语whosever=anyone whose无论谁的作主语、宾语、定语、表语whichever=anything that无论哪个作宾语、定语、主语、表语whoever=anyone who无论谁作主语whomever=anyone whom无论谁作宾语 1.that引导的从句如果作介词的宾语,只可用在except
4、,in,but,besides等少数介词后。如:I could say nothing but that Im sorry.我只能说我很抱歉。that引导的从句可作it的同位语从句。如:You may depend upon it that all the goods will be delivered in time.请放心,所有的货物都会准时交付。2.that引导宾语从句时通常可省略,作介词的宾语时不可省略,that引导其他名词性从句时一般不省略,特别是引导主语从句且位于句首时。如:That the earth is round is true.地球是圆的(这件事)是真的。The fact
5、 that he is a thief got around.他是小偷的事实传开了。【注意】下面一句中,第一个that可省略,第二个that不可省略:He said(that)he had been working here for ten years and that he wanted to go home.他说他已经在这里工作了十年,他想回家。3.whether与if引导名词性从句时的区别。(1)在引导宾语从句时whether与if可互换,但如果和or not连用则只能用whether。如:I dont know whether or not he can stay here longe
6、r.我不知道他是否能再待在这了。(2)如果宾语从句是否定结构,则用if而不用whether引导。如:He asked me if I wasnt going there.他问我是不是不会去那里。(3)介词宾语从句只能用whether引导。如:Im not interested in whether he is rich.我对他是否富有不感兴趣。(4)引导主语从句、表语从句或同位语从句一般用whether。如:Whether it will do us harm or good remains to be seen.它对我们是有害还是有益,还得等着瞧。The question is whethe
7、r you can do it yourself.问题是你是否能独自做。The question whether he will come here isnt decided yet.他是否会来这的问题还没有决定。(5)用it作形式主语时,whether或if都可以引导主语从句。如:It is not clear to me whether/if he likes the present.我也不清楚他是否喜欢这礼物。4.注意what/whatever,who/whoever,which/whichever的区别。试比较下列句子:Whoever will go to the concert pl
8、ease sign your name here.=Anyone who will go to the concert please sign your name here.任何想去音乐会的人请在这里签上名字。Who will go to the concert isnt known.=Its unknown who will go to the concert.不知道谁要去音乐会。He wont believe whatever she says.=No matter what she says,he wont believe her.他不相信她说的任何话。Whichever toy you
9、 want is yours.=No matter which toy you want,it is yours.不论你想要哪一个玩具,那都是你的。5.注意how long/how soon/how often/how much的区别。如:How long will he stay here?他将在这里待多久?How soon can you be ready?你多久能准备好?How often do you visit her?你多长时间去探望她一次?How much is that dress?那件衣服多少钱?6.当主句谓语动词表示不肯定或怀疑时,宾语从句用whether/if引导;表示有
10、把握时用that引导。如:I doubt whether/if he can win the match.我怀疑他能否赢得这场比赛。I dont doubt that he can win the match.我毫不怀疑他能赢得这场比赛。7.what与that在引导主语从句时的区别。what引导主语从句时在从句中充当句子成分,如主语、宾语、表语,而that则不然。如:What you said yesterday is right.你昨天说的是对的。That she is still alive is a fact.她还活着,这是事实。(一)主语从句 主语从句是在复合句中充当主语的名词性从句,
11、通常放在主句谓语动词之前或由形式主语it代替,而本身放在句子末尾。1.it 作形式主语和it引导强调句的比较 it 作形式主语代替主语从句,主要是为了平衡句子结构,主语从句的连接词没有变化。而it引导的强调句则是对句子某一部分进行强调,无论强调的是什么成分,都可用连词that引导。被强调部分指人时也可用who/whom引导。如:It is a pity that you didnt go to see the film.你没去看那场电影真是遗憾。It was Tom that/who told us the news.告诉我们这个消息的人是汤姆。2.主语从句不可位于句首的五种情况(1)if 引
12、导的主语从句不可居于复合句句首。如:有没有人帮过他还不知道。Whether someone helped him is still unknown.()If someone helped him is still unknown.()(2)It is said(reported)结构中的主语从句不可提前。如:据说习主席下周要来我校视察。It is said that President xi will visit our school next week.()That President xi will visit our school next week is said.()(3)It ha
13、ppens/It occurs结构中的主语从句不可提前。如:他考试没及格。It occurred to him that he failed in the examination.()That he failed in the examination occurred to him.()(4)It doesnt matter how/whether结构中的主语从句不可提前。如:他是不是错了,这一点不重要。It doesnt matter whether he is wrong or not.()Whether he is wrong or not doesnt matter.()(5)含主语从
14、句的复合句是疑问句时,主语从句不可提前。如:傍晚有可能下雨吗?Is it likely that it will rain in the evening?()Is that will rain in the evening likely?()(二)宾语从句 宾语从句是在复合句中充当宾语的名词性从句,通常放在主句谓语动词(及物动词)或介词之后。1.作动词的宾语(1)由that引导的宾语从句(that 通常可以省略)。如:I heard that he joined the army.我听说他参军了。(2)由what,whether,if 引导的宾语从句。如:She did not know wh
15、at had happened.她不知道发生了什么事。(3)动词间接宾语宾语从句(此时that通常不省略)。如:She told me that she would accept my invitation.她跟我说她愿意接受我的邀请。2.作介词的宾语。如:Our success depends upon how well we can cooperate with one another.我们的成功取决于我们的合作情况。3.作形容词的宾语。如:I am afraid(that)Ive made a mistake.我恐怕是犯错了。【注意】that 引导的从句常跟在下列形容词后作宾语:anxi
16、ous,aware,certain,confident,convinced,determined,glad,proud,surprised,worried,sorry,thankful,ashamed,disappointed,annoyed,pleased,hurt,satisfied,content 等。也可以将此类词后的that 从句看作原因状语从句。4.it 作形式宾语 it不仅可以作为形式主语,还可以作为形式宾语而把真正的宾语that 从句放在句尾,特别是在带复合宾语的句子中。如:We heard it that she would get married next month.我们
17、听说她打算下个月结婚。5.后边不能直接跟that从句的动词 这类动词有:refuse,let,like,cause,force,admire,condemn,celebrate,allow,dislike,love,help,take,forgive等。这类词后可以用不定式或动名词作宾语,但不可以用that引导的宾语从句作宾语。如:我非常羡慕他们赢得了比赛的胜利。I admire their winning the match.()I admire that they won the match.()6.不可用that从句作直接宾语的动词 有些动词不可用于“动词间接宾语that从句”结构中,常
18、见的有envy,order,accuse,refuse,impress,forgive,blame,denounce,advise,congratulate等。如:作为一个诚实的人,他给经理留下了很深的印象。He impressed the manager as an honest man.()He impressed the manager that he was an honest man.()7.否定的转移 若主句谓语动词为think,consider,suppose,believe,expect,fancy,guess,imagine等,其后的宾语从句若含有否定意义,一般要把否定词转移
19、到主句谓语上,从句谓语用肯定式。如:I dont think this dress fits you well.我认为这件衣服不适合你穿。(三)表语从句 表语从句是在复合句中作表语的名词性从句,放在系动词之后,一般结构是“主语连系动词表语从句”。可以接表语从句的连系动词有be,look,remain,seem等。另外,常用的还有The reason is that和It is because 等结构。如:The question is whether we can make good preparation in such a short time.问题是我们能否在那么短的时间内做好充分的准备。This is why we cant get the support of the people.这就是我们得不到人民支持的原因。课末随堂演练课后限时作业制作者:状元桥适用对象:高三学生制作软件:Powerpoint2003、Photoshop cs3运行环境:WindowsXP以上操作系统