1、1专题 07 名词性从句易错点 1 主语从句中连接词的误用【2018天津】The gold medal will be awarded _to wins the first place in the bicycle race.A. whomever B. whereverC. whoever D. whatever【错因分析】主语从句中,有些学生容易分不清连接词在从句中所作的成分或其意义而误选其他答案。【正确答案】C 作句子主语的从句叫主语从句。主语从句通常由下列词引导:1. 从属连词 that,whether,if 等;2. 连接代词 what,who,which,whatever,whoe
2、ver,whom 等;3. 连接副词 how,when,where,why 等。that在句中无词义,只起连接作用;连接代词和连接副词在句中既保留自己的疑问含义,又起连接作用,在从句中充当句子成分。What caused the accident is a complete mystery. 是什么导致该事故完全是个谜。Whoever comes to the party will receive a present. 所有参加晚会的人都将收到一份礼物。2【特别注意】有时候会用 it作形式主语,连接词引导的从句才是真正的主语。1. (2016北京)Your support is importa
3、nt to our work. _ you can do helps.A. However B. WhoeverC. Whatever D. Wherever【答案】C 【解析】helps 是谓语,_ you can do是主语部分,即主语从句,在主语从句中,do 后缺少宾语,表示任何事情,因此用 whatever引导,故选 C。2. matters most in learning English is enough practice.A.What B.Why C.WhereD.Which【答案】A 【解析】本题考查主语从句,从句中缺少主语,表示的东西,所以 A项正确。3.It doesnt
4、 matter _ you pay by cash or credit card in this store. A. how B. whetherC. what D. why【答案】B易错点 2 宾语从句中连接词的误用(2017天津) She asked me _ I had returned the books to the library, and I admitted that I hadnt.A. when B. where C. whether 3D. what【错因分析】学生容易对从句中所缺成分或连接词的意义分析有误而误选其他答案。【试题解析】句意:她问我是否已经把书还给图书馆了,
5、我承认我还没有还。A. 什么时候;B. 在哪里;C. 是否;D. 什么。根据句意,故选 C。【正确答案】C【名师点睛】本题是对宾语从句中连词的考查。对于宾语从句的连词的选择,首先确定连词的词义,然后根据句意判断出正确的连词,本句的句意很明显,确定为是否。在句子中用作宾语的从句叫宾语从句。引导宾语从句的连接词与引导主语从句、表语从句的连接词大致一样,在句中可以作谓语动词、介词及非谓语动词的宾语。复习宾语从句应着重注意以下两点:1. 在宾语从句中,引导词 whether和 if基本一样,但介词后的宾语从句多用 whether。It all depends upon whether we can g
6、et their cooperation. 这完全取决于我们是否能取得他们的合作。2. 动词 doubt若用于肯定句,其后的宾语从句常用 if/whether引导;若用于否定句或疑问句,则宾语从句用 that引导。I doubt if/whether our football team will win the match. 我怀疑我们这支足球队是否会赢得比赛。I dont doubt that hell succeed. 我不怀疑他会成功。The seaside here draws a lot of tourists every summer. Warm sunshine and soft
7、 4sands make it is.A. what B. which C. howD. where【答案】A 易错点 3 表语从句中连接词的误用【2018江苏】By boat is the only way to get here, which is _ we arrived. A. where B. whenC. why D. how【错因分析】本题学生容易误认为所填词引导的是其他从句,或者对从句中所缺成分分析错误而误选 B。【正确答案】D【试题解析】句意:乘船是到达这里唯一的途径,这就是我们如何到达的。分析 which引导的非限定性定语从句可知,后面为表语从句。分析句意可知,这里用连接副
8、词 how引导表语从句,充当方式状语,表示“如何” 。故选 D。在复合句中,位于系动词之后作表语的从句叫表语从句。引导表语从句的关联词与引导主语从句的关联词大致一样,表语从句位于系动词后,有时用 as if,as though引导。其基本结构为:主语+系动词+ that 从句。1. that 引导表语从句,无词义,只起连接作用,不可省。2. 系动词可以是 be, look, seem, sound, appear等。53. 主语可以是名词 fact, truth, cause, question, explanation, trouble, assumption, belief等,或者代词 t
9、his, that, these, those, it等。The two people speak different languages and can not communicate with each other well.Oh, I see. Thats _ misunderstanding occurs.A. when B. what C. which D. why【答案】D易错点 4 同位语从句中连接词的误用The only way to succeed at the highest level is to have total belief _ you are better th
10、an anyone else on the sports field.A. how B. thatC. which D. whether【错因分析】考生容易因对中心词和引导词在从句中所作成分分析不清而误选其他答案。【正确答案】 B6同位语从句是名词性从句(主语从句、表语从句、宾语从句、同位语从句,介宾从句)中的主要从句之一,从句作同位语表示与之同位的名词(短语)的实际内容,它的作用相当于名词,对前面的名词(短语)加以补充说明或进一步解释。一、在复合句中用作同位语的从句叫同位语从句。它一般跟在某些名词后面,用以说明该名词表示的具体内容。I heard the news that our team
11、 had won. 我听到了我们队获胜的消息。二、可以跟同位语从句的名词通常有news,idea,fact,promise,question,doubt,thought,hope,message,suggestion,words(消息) ,possibility 等(一般的抽象名词均可) 。Ive come from Mr wang with a message that he wont be able to see you this afternoon. 我从王先生那里来,他让我告诉你他今天下午不能来看你了。三、英语中引导同位语从句的词通常有连词 that,whether,连接代词 what
12、,who,连接副词 how,when,where 等。He must answer the question whether he agrees to it or not. 他必须回答他是否同意这样一个问题。四、有时同位语从句可以不紧跟在说明的名词后面,而被别的词隔开,即构成分隔式同位语从句。The thought came to him that maybe the enemy had fled the cit. 他突然想起可能敌人已经逃出城了。【特别注意】1. 引导同位语从句的 that不能省略。The idea that you can do this work well without
13、 thinking is quite wrong. 你认为不动脑筋就能做好这件工作的想法是完全错误的。 (that 从句作 idea的同位语)2. 在某些名词(如 demand,wish,suggestion,resolution等)后面的同位语从句要用虚拟语气。There was a suggestion that Brown should be dropped from the team. 有一项建议7是布朗应该离队。3. 引导同位语从句的连词 that通常不省略,但在非正式文体中也可以省去。He gabbed his suitcase and gave the impression he
14、 was boarding the Tokyo plane. 他拿起了手提箱,给人的印象是他要登上飞往东京的飞机了。4. whether 可引导同位语从句,但 if不能引导同位语从句,which 也不引导同位语从句。The question whether we should call in a specialist was answered by the family doctor. 我们是否请专家由家庭医生来定。The notice came around two in the afternoon the meeting would be postponed.A. when B. that
15、 C. whether D. how【答案】B易错点 5 连接代词与连接副词的误用(2015四川)The exhibition tells us _ we should do something to stop air pollution.A. where B. why C. what D. which【错因分析】考生容易记不清连接代词和连接副词的用法而错选答案。【试题解析】考查宾语从句。宾语从句中不缺少主语、宾语、定语,故选项 C、D 错误。句8意:这个展览告诉了我们,我们为什么要停止空气污染。此处表示的是我们为什么要停止空气污染,而不是我们在哪儿停止空气污染,若选连接代词 what,则从句
16、中的 something应该去掉。故选择 B。【正确答案】B解答名词性从句的一个关键点是判断选用何种连接词,这要看连接词在从句中所作的成分:通常连接代词在从句中作主语(what, which, who, whatever, whichever, whoever)、表语(what, which, who, whatever, whichever, whoever)、定语(what, which, whose)和宾语(which, what, whom, whichever, whatever, whomever),而连接副词(when, where, how, why)通常作相应的状语。when
17、 作时间状语,where 作地点状语,how 作方式状语,why作原因状语。Could I speak to is in charge of International Sales, please?A. anyone B. someoneC. whoever D. no matter who【答案】C【名师点睛】疑问词+ever与no matter+疑问词的区别:疑问词+ever可引导名词性从句,还可引导让步状语从句;no matter+疑问词只能引导让步状语从句,不能用于引导名词性从句。易错点 6 名词性从句与其他结构判断错误9(2017天津) It was when I got back
18、to my apartment _ I first came across my new neighbors.A. who B. where C. which D. that【错因分析】考生容易分不清句子结构,而误认为名词性从句是其他结构或从句,从而错选答案。【试题解析】句意:当我回到我的公寓的时候,我第一次遇见了我的新邻居。本句中去掉It was 和空格,句意完整,所以本句是强调句型,强调的是时间状语,应用 that。故选D。【正确答案】D1. that引导的同位语从句与定语从句的区别(1)从句所修饰词的不同:同位语从句所修饰的词通常是少数一些表示抽象意义的名词,如 belief, doub
19、t, fact, hope, idea, news, possibility, thought, order, suggestion, wish, answer, information, conclusion, decision, discovery, knowledge, law, opinion, problem, promise, proof, question, report, truth, risk 等。定语从句的先行词可以指人、物等。(2)连接词的作用不同:引导同位语从句的 that只起连接作用,不在从句中担任任何句子成分。whether 和 how 可以引导同位语从句,但不能引
20、导定语从句。定语从句中的 that既代替先行词,同时在从句中作某个成分(主语或宾语);而同位语从句中的 that是连词,只起连接主句与从句的作用,不充当从句中的任何成分。10(3)从句的作用不同:定语从句具有形容词或副词的特点,对先行词起修饰、限定作用,描述先行词的性质或特征,与先行词之间是所属关系。同位语从句具有名词的特点,对中心词作进一步补充、解释,是中心词的具体内容。The news that our team has won the game was true. 我们队赢了那场比赛的消息是真的。 (同位语从句, 补充说明 news到底是一个什么消息;that 不可代替,一般不省略) T
21、he news that had spread all over the world made the man famous.那个已经传遍全世界的消息使得那个人出名了。(定语从句, news在从句中作 had spread的主语;引导定语从句时,that 很多时候可以用 which / who/whom等来代替,作宾语时可省略) 2. that引导的同位语从句与强调句型的区别that引导的同位语从句用于进一步解释说明中心名词的内容,从句本身是一个非常完整的句子,that 起引导作用,在从句中可能不作成分,也可能作一定成分,去掉 that后句子不完整;而强调句型是一个句型结构,去掉强调句型的基本
22、框架 It isthat后,句子仍然完整,that 是用于强调除人之外的部分(主语、宾语、状语)。指出下列句子的类型,并写出先行词/中心词、连词及连词在从句中的功能1. The news that Tom would go abroad is told by him.句子类型:_ 先行词/中心词:_连词:_连词功能:_2. The news that Mr. Brown will be our new English teacher is true. 句子类型:_ 先行词/中心词:_连词:_连词功能:_【答案】11句子类型:同位语从句先行词/中心词:The news连词:that连词功能:仅起
23、连接作用3. The news that he told me yesterday is true. 句子类型:_ 先行词/中心词:_连词:_连词功能:_【答案】句子类型:定语从句先行词/中心词:The news连词:that连词功能:起连接作用,并在从句中作宾语1 主语从句一、主语从句的概念与连接词作主语的从句叫主语从句,它是名词性从句之一。引导主语从句的连接词有:1. 从属连词 that,whether。That they were true sisters was clear from the facial resemblance between them. 很明显,她们的确是亲姐妹,她
24、们的脸型很相似。Whether hell come here isnt clear. 他是否会来这里还不清楚。2. 连接代词 who, whom, whose, what, which, whoever, whatever, whichever。What she did is not yet known. 她干了什么尚不清楚。Whoever comes is welcome. 不论谁来都欢迎。3. 连接副词 where, when, how, why。12How this happened is not clear to anyone. 这事怎样发生的,谁也不清楚。How and why he
25、 suddenly disappeared remains a mystery. 他怎么又为什么突然消失仍然是个迷。【特别注意】连词 that引导的主语从句,通常用形式主语 it代替主语从句。连接代词(副词)引导的主语从句,可以用形式主语 it代替主语从句,也可直接放在句首使用主语从句。主语从句通常都是放在句首,但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。这样就构成了下面一些常用句型:(1)It is + n. / adj. +从句It is a pity/shame that. 遗憾的是It is possible that. 很可能It is unlik
26、ely that. 不可能It is a pity that she has made such a mistake. 她犯了这样一个错误,真是遗憾。(2)It +不及物动词+从句It seems/appears that. 似乎It happened that. 碰巧It seems that they have won the game. 似乎他们赢得了比赛。(3)It + be +过去分词+从句It is said that. 据说It is known to all that. 众所周知It is reported that. 据报道It is believed that. 据信;人们
27、相信It is suggested that. 有人建议It must be pointed out that. 必须指出It has been proved that. 已证明It is believed that at least 20 buildings were damaged or destroyed. 据信,至少有二十座楼房遭到破坏或彻底毁掉。It is suggested that the meeting should be put off. 有人建议会议延期召开。13Its reported that three people were killed in the accide
28、nt and five were hurt badly. 据报道,事故中三人丧生,五人重伤。It is known to all that Taiwan is an inseparable part of China. 众所周知,台湾是中国不可分割的一部分。二、主语从句三要素1. 从句用陈述语序How he became a great scientist is known to us all. 众所周知他是如何成为一名伟大的科学家的。2. 谓语动词一般用单数。当主语是从句时,主句谓语一般用单数。Whatever he says is of no importance. 无论他说什么都不重要。
29、Whoever says that is wrong. 无论谁说这话都不对。【特别提醒】但谓语动词用单数还是复数,不可一概而论,而要视句子的意义而定。What I need is money. 我需要的是钱。What I need are books. 我需要的是书。3. 通常不能省略关联词That he is the best student in the class is obvious. 很明显,他是班里最好的学生。三、学习主语从句应该注意的几个问题1. 引导词 that与 whatwhat既有引导主语从句的作用,同时又在从句中作句子成分(主语、宾语、表语等)。这时 what相当于 al
30、l that/everything that.,常译成所的(东西、事情、话等);而 that只起连接作用,本身无实际意义,在从句中也不担当任何句子成分。但 that引导的主语从句放在句首时,不能省略 that。What is done cant be undone. 已成定局,无可挽回。What we cant get seems better than what we have. 我们得不到的东西似乎比已得到的要好。That we should work out a plan to deal with the present serious situation is important. 我
31、们应该制订一个计划来应付目前严峻的形势,这一点非常重要。14That a new teacher will come to teach us geography is true. 一位新老师将来教我们地理,这是真的。2. 引导词 if和 whether(1)whether之后可以直接跟 or not,而 if 则不能。I dont care whether or not your car breaks down. 我不知道你的车是不是坏了。但是不可以说:I dont care if or not your car breaks down.(2)whether引导的从句一般不可以为否定结构(选择
32、问句的后一部分除外);而 if则可以跟否定结构。I dont care if she doesnt come. 我不在乎她来不来。但是,在某些动词或形容词之后,则可以用 whether引导一个否定结构的句子,这种结构往往表示肯定的含义。I wonder whether he doesnt think too much of himself.=I think he does think too much of himself. 我想他没有为自己考虑太多。(3)在个别动词之后,如 discuss 等,只跟用 whether引导的宾语从句。They discussed whether they sh
33、ould close the shop. 他们讨论是否应该关掉商店。(4)whether 可以引导从句作介词的宾语,而 if则不能。Im not interested in whether theyll go or not. 我对他们会不会去不感兴趣。(5)whether可以直接跟动词不定式连用,而 if则不能。I didnt know whether to laugh or to cry. 我不知道是要笑还是哭。(6)引导主语从句(包括从句在句首的位置)应当用 whether,不用 if。Whether it is true remains a problem. 这是不是真的还是一个问题。3
34、. 其他引导词连接代词 who, which, whom, whose有各自的意义,起连接作用,并在从句中充当语、宾语、表语、定语等;连接副词 when, where, why, how等有各自的意义,起连接作用,并在从句中充当状语。三、语气在 It is necessary / natural / important / strange.+ that-clause这类句型里,that 所引导的主语从句中谓语动词用should +原形,表虚拟语气。It is necessary that the problem should be settled at once. 这个问题必须马上15解决。I
35、ts strange that he should have gone away without telling us. 他竟然没向我们说一声就走了,真是奇怪。四、以 it作形式主语的主语从句与强调句型的区别It be + adj./n. + that-clause与强调句型均有 It be.that.之类的语言标志,但不同的是:(1)前者中的 that从句是主语从句。若删掉其中的 It be和 that,则剩余部分不论结构还是语意都不能成为一个句子;但若将后者中的 It be和 that去掉,则剩余部分的结构和语意仍能构成一个完整的句子。(2)强调句型译为汉语时可加上正是或就是之类的字眼,而
36、主语从句则不可以。请比较下面两个句子:It is surprising that Mary should have won first place. 令人惊奇的是玛莉竟然获得了第一名。It is Mary that has won first place. 正是玛莉得了第一名。第一句话中的 It是形式主语,that 引导的是主语从句,句中的 It is和 that无法删除,一旦删除,句子就不成立;第二句是强调句型,其中的 It is和 that可以去掉,因为没有It is和 that句子仍然完整。2 宾语从句一、宾语从句宾语从句在复合句中起宾语的作用,既可作动词的宾语,也可作介词的宾语(作介词
37、的宾语时必须由 wh-疑问词引导)。引导宾语从句的连词有 that,if,whether;连接代词who,whom,whose,what,which;连接副词 when,where,how,why。从句引导词的使用:1. 连词 that(引导从句,但是在从句中不作成分,that 常可省略)He knows that Jim will work hard. 他知道吉姆会努力工作的。2. 连词 if, whether(表示是否,引导从句,但是在从句中不作成分)16【特别提醒】whether和 if都有是否的意思,一般情况下两者可以换用,但在介词之后、不定式之前、与 or not连用、在句首或在引导
38、表语从句同位语从句时,只能用 whether。I want to know if/whether the news is true. 我想知道这个消息是不是真的。He doesnt know whether to stay or not. 他不知道改不该留下来。【名师点睛】动词 doubt 用在疑问句或否定句中时,其后宾语从句常用 that 作连接词;用在肯定句中时,连接词用 whether 或 if 皆可,而不用 that。Do you doubt that he will win? 你怀疑他会赢吗?I dont doubt that your proposition is wrong. 我
39、不怀疑你的提议是错的。He doubts whether/if I know it. 他怀疑我是否知道这件事。3. 连接代词 who, whom, which等Do you know who (whom) they are waiting for? 你知道他们在等谁吗?Do you know which dress fits her best? 你知道哪件连衣裙最适合她吗?4. 连接副词 when, where, how, whyCould you tell me how we can get to the station? 你能告诉我我们怎样才能去车站吗?学习宾语从句要把握三个要点:连接词、
40、语序和时态。1. 使用宾语从句,连接词的选择至关重要。有关连接词的选择可遵循以下规则:(1)如果宾语从句为陈述句,连接词用 that。that 本身既没有实际意思,也不在从句中作成分,所以口语中常省略。I hope (that) you will write to me as soon as possible. 我希望你尽快给我写信。(2)宾语从句为一般疑问句时,连接词用 if或 whether,可译为是否。He asked me if(whether) I would go to Beijing by air. 他问我是否乘飞机去北京。(3)宾语从句为特殊疑问句时,连接词用原疑问词。He d
41、idnt know how he could get across the river. 我不知道他是怎么过了河的。2. 从句的语序无论原句是陈述句、一般疑问句,还是特殊疑问句,在宾语从句中一律使用陈述语序。17The teacher asked if you had finished your homework. 老师问你是否做完作业了。Can you tell us when the sports meeting will begin? 你能告诉我们运动会何时举行吗?3. 时态的选择(1)如果主句是一般现在时,宾语从句可以是任何所需要的时态。I hear a new restaurant
42、will be opened in the city next month. 我听说这个城市下个月将开一个新饭店。(2)如果主句是一般过去时,宾语从句要用与其相应的过去的某种时态。She told us she had borrowed the book from the library. 她告诉我们她从图书馆借的这本书。He never told me when he would leave. 他从未告诉我他何时离开。【特别注意】当 宾 语 从 句 表 示 的 是 一 个 真 理 或 一 个 永 久 性 的 事 实 时 , 其 时 态 可 不 受 主 句 时 态 的 限制 , 仍 用 一 般
43、 现 在 时 。The teacher said millions of other stars are even bigger and brighter than the sun. 老师说数百万行星都比太阳更大、更亮。3 表语从句表语从句在复合句中作句子的表语,通常用在连系动词 be,look,seem 后。引导表语从句的连词有 that,as if, as though,whether;连接代词 who,what,which;连接副词 when,where,how,why 等。需要注意的是表语从句也要用陈述语序。1. 从属连词 that(一般不省略为好),whether(不用 if),as
44、 if(though)等引导的表语从句。The reason (why) she hasnt come is that (此处不可用 because) she has to take her mother to a hospital. 她没来是因为她必须送母亲去医院。2. 连接代词 what, which, who, whom, whose等引导的表语从句。This is what I want to say. 这就是我想说的。3. 连接副词 when, where, how, why等引导的表语从句。18This is how we overcome the difficulties. 这就
45、是我们克服困难的方法。 The question is where we shall have the sports meeting. 问题是我们在哪里开运动会。It looked as if he had lost something. 看起来他好像丢失了什么东西。His trouble is how he can get the help he needs. 他的麻烦是如何得到所需要的帮助。His car broke down on the way. Thats why he is late. 他的车坏了,那就是他迟到的原因。4 同位语从句一、定义在复合句中作名词的同位语的从句叫同位语从句
46、。同位语从句一般放在某些抽象名词的后面,用以解释或说明名词所表示的具体内容。二、同位语从句的引导词功能 例词从属连词只起连接作用,不充当从句中的任何成分。that, whether连接代词既起连接作用,又在从句中担任成分(主语、宾语、表语或定语)。who, what, whose, which, whoever, whatever, whichever连接副词既起连接作用,又在从句中担任成分(状语)。when, where, why, how, whenever, wherever, howeverThe idea that computers can recognize human voic
47、es surprises many people. 很多人对于电脑能够识别人的声音感到非常吃惊。The question who should go abroad required consideration.谁出国这个问题还要考虑。Ive got a pretty good idea why they quarrel every day.我很了解他们为什么天天吵架。19There is no doubt that the prices of computers will go down. 毫无疑问电脑的价格会下降。They usually write exact instructions h
48、ow the music is to be played.他们通常还要为如何演奏他们的音乐而写出精确的说明。I have no idea which one is the best. 我不知道哪一个最好。The question where we should have the sports meeting has not been discussed.还没有决定好我们在哪里召开会议。【特别注意】1. 如同位语从句意义、结构完整,应用 that引导同位语从句。(即 that不充当任何成分,只起连接作用)2. 如同位语从句意义不完整,结构完整,需增加是否的含义,应用 whether引导同位语从句。(if 不能引导同位语从句)。3. 如同位语从句意义不完整,需增加什么时候、什么地点、什么方式等含义,应用连接副词 when, where, how等引导同位语从句。4. 为了保持句子平衡,同位语从句和名词有时候会被别的词分隔开。5