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高中三年级英语

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  • 单选题
    —How do you usually find out about new software?
    —In the magazines likePopularElectronics. That's ________computer companies usually advertise.
    [     ]

    A. which
    B. where
    C. what
    D. why
    本题信息:2012年同步题英语单选题难度一般 来源:张铁富(高中英语)
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本试题 “—How do you usually find out about new software?—In the magazines likePopularElectronics. That's ________computer companies usually advertise.[ ]A....” 主要考查您对

关系副词

表语从句

等考点的理解。关于这些考点您可以点击下面的选项卡查看详细档案。
  • 关系副词
  • 表语从句

关系副词的概念:

关系副词兼有副词与连接词两种作用,在不及物动词的连接中要求用关系副词。关系副词有when, where, why。


关系副词的特点:

关于副词用于引出定语从句,主要有when, where, why:
如:Sunday is the day when very few people go to work. 星期日是没什么人上班的日子。 
        That's the reason why he dislikes me. 这就是他不喜欢我的原因。 
        Do you know a shop where I can find sandals? 你知道哪家商店我能找到凉鞋吗?
注:关系副词用于引出定语从句,且在从句中用作状语。关系副词when表示时间,where表示地点,why表示原因。

使用关系副词应注意的几点:

(1)how不能用作关系副词,不要想当然地将how用作关系副词置于theway后表示方式:他说话就是那个样子。
误:This is the way how he spoke.
正:This is how he spoke./ This is the way(that, in which)he spoke.
(2)关系副词when和where既可引导限制性定语从句,也可引导非限制性定语从句,但why只能引导限制性定语从句,不能引导非限制性定语从句(若引导非限制性定语从句,可用for which reason)。
(3)引导定语从句时,when的先行词为时间,where的先行词为地点,why的先行词为原因(主要是the reason),但是反过来却不一定:
如:Don't forget the time(that) I've toldyou.不要忘记我告诉你的时间。
        Do you know the house(that) he bought recently? 你知道他最近买的那座房子吗?
        Please tell me there as on(that) you know. 请告诉我你所知道的原因吧。


关系副词的用法:

关系副词有when, where, why,作用有三个:
1、连接主句与从句;
2、代替先行词;
3、在从句中作状语,不可省略。
When和where既可引导限制性定语从句,也可引导非限制性定语从句。Why只能引导限制性定语从句。这些关系副词在意义上都相当于一定得“介词+which”结构。
1)when=at/in/on/during,在定语从句中作时间状语。
例如:Tell me the time when(at which) the train leaves.
注意
①当表示时间的先行词在从句中中作主语或宾语时,不能用when。
例如:I will never forget the days I spent with your family. 
②It/This/That+be+the first/second/last time that…句型中,that是习惯用法,不能用 when代替,that还可以省略。从句中使用与“be动词”呼应的完成形式。
例如:It is the first time that I have been to the Great Wall.
2)where表地点,只能跟在表示地点的名词后,它在定语从句中作地点状语。
例如:This is the second school where I used to teach.
注意:
①引导词where可用that替换,并经常可以省略。
例如:That's the place(where/that) we went before.
②当表示地点的先行词在句中作主语或宾语时,不用where,用关系代词that或which。
例如:The factory that/which we visited yesterday was built last year.
③where可与from连用。
例如:His head soon appeared out of the second story windows, from where he could see nothing but rees.
3)why表原因,引导的从句修饰名词reason。Why可用that或forwhich替换或省略。
例如:I don't know the reason(why/for which/that) he left here.


表语从句的概念:

用作表语的从句叫作表语从句,它位于主句中的连系动词之后。引导表语从句的词有
从属连词that、whether、as though(if);
关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever等;
关系副词when, where, why, how, however, when。


表语从句用法:

1、表语从句的引导词:
引导表语从句的词有连词that, whether,连接代词和连接副词,关系代词型what,以及as if,as though,because等连词:
如:The fact is that he doesn't really try. 事实是他没有做真正的努力。
        The question is whether the film is worth seeing. 问题是这部电影是否值得看。
        The problem is how we can find him. 问题是我们如何找到他。
        That was when I was fifteen. 这是我15岁时发生的事。 
        It isn't as if you were going away for ever. 又不是你离开不回来了。
        It is because I love you too much. 那是因为我太爱你了。
:whether可此导表语从句,但与之同义的if 却通常不用于引导表语从句;because可引导表语从句,但与之同义的since, as, for等也不用于引导表语从句。

2、连词that的省略问题引导表语从句的that通常不省略,但在口语或非正式文体中有时也可省略:
如:My idea is(that) we should do it right away. 我的意见是我们应该马上干。
        The trouble is(that) he is ill. 糟糕的


表语从句用法拓展:

名词性从句在be等系动词后作表语时被称为表语从句,表语从句只能置于主句之后,而主句的动词只能是联系动词。
例如:The problem is how we can get the things we need. 问题是我们怎样能弄到我们需要的东西。(how在表语从句中充当方式状语)   
            The scissors are not what I need. 这把剪刀不是我所需要的。(what在表语从句中充当宾语)   
            What I told him was that I would find him a good play.
            我告诉他的是我会给他找个好剧本。(what在主语从句中作直接宾语,that作为表语从句的引导词在该表语从句中不充当句子成分,不能省略)   
            That is what I want to tell you. 那就是我想要对你讲的。(what在表语从句中充当直接宾语)   
            That is why she failed to pass the exam. 那就是她考试不及格的原因。(why在表语从句中充当原因状语)
注意:“That is why...”是常用句型,意为“这就是……的原因/因此……”,其中why引导的名词性从句在句中作表语,该句型通常用于针对前面已经说明过的原因进行总结:
如:That is why you see this old woman before you know, Jeanne.珍妮,这就是现在这个老太婆出现在你面前的原因。(前文提到Jeanne对老妇人显得苍老憔悴深感诧异,说话人对她讲述了其中的原因之后,用这一句来进行概括)。//ThatiswhyIcame.这就是我来的原因。下面是两个与“That is why...”形式相似的结构,它们与“That is why...”结构之间的关系要能够辨析清楚:  
(1)“That is why...”与“That is the reason why...”同义,只不过从语法结构上讲,“That is the reason why...”中why引导的是—个定语从句,将其中的the reason去掉则与“That is why...”结构一样:
如:That is(the reason) why I can not agree. 这就是我不能同意的理由。  
(2)“That is because...”句型中从属连词because引导的名词性从句在此作表语,这也是个常用句型,意为“这就是为什么……/因为……”。“That is because...”与“That is why...”之间的不同在于“That is because...”指原因或理由,“That is why...”则指由于各种原因所造成的后果:
如:He did not see the film last night.
        That is because he had to help his little sister with her homework. 昨天晚上他没有去看电影,那是因为他得帮助他的妹妹做作业。(第一句话说明结果,第二句话说明原因)             
        He had seen the film before. That is why he did not see it last night. 他以前曾看过那部电影,因此他昨天晚上没有去看。(第一句话说明原因,第二句话说明结果)