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2021考研英语知识点:定语从句的语法精析

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  考研英语备考很多事情都要提上日程了,看看哪些是该注意的,下面由出国留学网小编为你精心准备了“2021考研英语知识点:定语从句的语法精析”,持续关注本站将可以持续获取更多的考试资讯!

  2021考研英语知识点:定语从句的语法精析

  语法是考研英语的基础,这部分在研究生英语考试中不再单独考查,但是语法知识贯穿在整个英语考卷的各个题型中。 完型填空题会直接考查语法知识;阅读理解题和英译汉中有大量的长难句,这些句子只有具备一定的语法知识才能正确分析;作文中要写出正确无误的句子,也需要语法知识。这部分基础如果欠缺,其它的综合能力提高起来将会很慢,所以所有考生都务必重视考研语法的复习。从句就是一个主谓结构相当于整个句子(这样的句子叫复合句)中的一个成分,因此从句不能单独使用。在复合句中修饰名词或代词、作定语的句子叫定语从句。

  定语从句是中国人学英语最重要的难点之一。其实定语从句很有规律,总结如下:在关系代词中that既可指人又可指物、既可作主语又可作宾语,因此,除了在非限定性定语从句中,用that一般不会出问题。

  关系副词的用法比较单一,它们从句中只起状语的作用,表示时间的就用who门,表示地点的就用where,而why只修饰一个词,即reason。

  定语从句所修饰的词叫“先行词”,因为它总是处在定语从句的前头,比定语从句先行一步。

  引导定语从句的词叫关系词,包括关系代词和关系副词。

  •关系代词:

  who,which,that作从句的主语

  whom,which,that作从句的宾语(可省略)

  whose从句中作定语

  以下情况只能用that,不能用which:

  i.先行词为不定代词all, little, none,any,every,no,much, anything, nothing

  ii. 先行词有最高级和序数词修饰时(包括: the only, the very, the same, the last, the next等)

  iii.先行词既有人又有物的时候

  以下情况只能用which,不能用that;

  ① 引导非限制性定语从句(包括代表整个主句的意思时)

  ② 介词+关系代词的结构中

  •关系副词:

  when指时间,在定语从句中作时间状语

  where指地点,在定语从句中作地点状语

  why指原因,在定语从句中作原因状语,只修饰reason。

  如果用定语从句把两个句子合二为一:首先找出两个句子当中相同的部分,定语从句修饰的就是这一部分。要把其中一个句子变成定语从句,就要把这句中相同的那个部分用一个关系词来代替;代替时,先看被代替的部分是指人还是指物、再看它作什么句成分。指人并作主语的,就用who。或that;指人并作宾语的,就用whom或that;指人并作定语的,就用whose。指物并作主语的,就用which或that认指物并作宾语的,还是用which或that认是物并作定语的,就用whose或of which。这样找好并替换以后,再把这个关系代词放到要变成定语从句的那个句子的最前面(被代替的部分不能再保留,其它的词语一律不变),这个句子就变成了定语从句。然后,再把这个定语从句整个放在被修饰的词后面,最后,如果还有其它句子成分,就把它们放到定语从句的后面,就行了。

  例如:

  Have you found the book? You were looking for the book yesterday.

  在这两个句子中,the book是相同的,定语从句修饰的就是the book。把后面这一句变成定语从句,找个关系词来代替the book;在将要被变成定语从句的名子中,the book是物并作宾语,所以用which或that代替它。

  然后把which或that放到本句的最前面,其它的词和语序一律不变。这时,就成了"that/which you were looking for yesterday?”,再把这个定语从句整个放在被修饰的词后面,就成了“have you found the book that/which you were looking for yesterday?”定语从句就完成了,主句是问句,所以句末用问号。that/which代替的是原句中的宾语,原句变成了从句,它们仍然作从句的宾语。关系代词在从句中作宾语时可以省略,因此上句又可变成“have you found the book you were looking for yesterday?”。

  关系副词与此同理。只是关系副词代替的是原句中的状语。在被代替之前,这个状语中一定要含有一个与另一句相同的成分。

  例如:This is the house where I was born and brought up. = I was born and brought up in the house. 在这两个句子中,in the house是句子里的地点状语,定语从句修饰的就是the house。把后面这一句变成定语从句。在将要被变成定语从句的句子中,in the house是地点状语,所以用where来代替它。然后再把where放到本句的最前面,其它的词和语序来代替它。然后再把where放到本句的最前面,其它的词和语序一律不变。这时,就成了"where I was born and brought up"。再把这个定语从句整个放在被修饰的词后面,就成了"This is the house where I was barn and brought up.”,定语从句就完成了,主句是陈述句,所以句末用句号。Where代替的是原句中的状语,原句变成了从句,它就作从句的状语。

  (1) The hotel is an artistic building. We'll stay in it.

  ……The hotel where we'll stay is an artistic building.

  ……The hotel (which/that) we'll stay in is an artistic building.

  ……The hotel in which we'll stay is an artistic building.

  (2) Perhaps they' ve heard of the place. We went there for our holidays last time.

  ……Perhaps they' re heard of the place where we went for our holidays last time.

  •定语从句

  请大家照上面的例子,把下面变定语从句的步骤说出来(括号里的可以省略):

  (3)They’re redecorating the room. A conference will be held in the room.

  →They’re redecorating the room where a conference will be held.

  →They’re redecorating the room (which /that) a conference will be held in.

  →They’re redecorating the room in which a conference will be held.

  那么,“介词+关系代词”是怎么回事呢?原来上面这个例句,还有一种做法:This is the house. I was born and brought up in the house.在这两个句子中,the house是相同的,定语从句修饰的就是the house 。把后面这一句变成定语从句。在将要被变成定语从句的句子中,the house表示物而且是介词in的宾语,所以用关系代词which或that来代替。然后把which或that放到本句的最前面,其它的词和语序一律不变。这时,后面这一句就成了 “which/that I was born and brought up in”。再把这个定语从句整个放在被修饰的词后面,就成了“This is the house which/that I was born and brought up in”。定语从句就完成了,主句是陈述句,所以句末用句号。

  which/that代替的是原句中的宾语,原句变成了从句,它们就作从句的宾语。关系代词在从句中作宾语时可以省略,因此上句又可变成“This is the house I was born and brought up in.”

  但是,in可以提到关系代词的前面,不过这时不能用that,而且不能省略。所以上句又可变为“This is the house in which I was born and brought up.”这就是“介词+关系代词”的来历。

  定语从句又分为限定性定语从句和非限定性定语从句。限定性定语从句把它的先行词限定在特定的意义之内,对先行词起限定的作用、是先行词必不可少的修饰语,没有它,整个句子的意思就会受到影响、就不完整。非限定性定语从句不对先行词起限定的作用,不是先行词必不可少的修饰语,只对先行词起补充说明的作用,没有它,整个句子的意思不会受到影响、仍然完整。非限定性定语从句相当于一个分句,翻译时也是把它当作分句处理的。非限定性定语从句和它的先行词之间要用逗号隔开;而限定性定语从句和它的先行词之间不能用逗号隔开。非限定性定语从句中除了不用that以外,其它关系词都可使用,使用方法与限定性定语从句一样。

  例如:The supermarket which was opened two months ago is now closed down.

  两个月前开的那家超市现在已经倒闭了。(限定)

  The supermarket, which was opened two months ago, is now closed down.

  那家超市现在已经倒闭了,那家超市两个月前开的。(非限定)

  The book (which) you’re reading is mine .

  你正在读的那本书是我的。(限定)

  The book, which you’re reading, is mine.

  那本书是我的,你正在读那本书。(非限定)

  如果以上例子的差别不十分明显,再看下面的例句:

  I’ve been to London, which is a beautiful city。

  我去过伦敦,那是个美丽的城市。

  Your father, whom I respect very much, is a kind old man.

  你父亲是个很和善的老头,我很尊重他。

  Nanjing, where I lived for five years, is very hot in summer.

  南京夏天非常热,我在那里生活过五年。

  在以上三例当中,定语从句不就能是限定性的。若变成限定性定语从句,其意就成了“我去过那个是座美丽的城市的伦敦。你那个我很尊重的父亲是个很和善的老头。我在那里生活过五年的南京夏天非常热。”言外之意是还有别的伦敦、父亲和南京。

  通过这几个例子我们可以看出,专用名词以及世界上独一无二的东西都不能有限定性定语从句。因为它们的意义本身已经非常清楚,不需要对其进行限定。另外,非限定性定语从句的先行词还可以是整个主句所表达的意义。

  如:He did well in the physics exam, which surprised me.

  他物理考得很好,这使我很吃惊。

  (学地道的英语有两个重要的练习方法:parallel writing, and reverse translation,即平行写作和逆翻译。所谓平行写作,就是模仿英语的句子写类似的句子。而逆翻译就是先把英语译成汉语,或根据汉语的译文,再把汉语翻译成英语,再把英语译文同原文比较,分析差异。这两种方法能避免汉语式英语。)

  He did well in the physics exam, which surprised me.

  他物理考得很好,这使我很吃惊。

  请把这句话逆翻译。有的同学会翻译为:He did well in the physics exam, this surprised me. 这句话错在什么地方呢?错在句法。这句话有两个主谓结构,是两个并列的分句,但没有连词(this 是代词),这就成了串句。

  再如:He’s very particular about wording, which I am not.

  他很咬文嚼字,而我不。

  I said nothing, which made her angry.

  我什么也没说,这使她很生气。

  Tom didn’t go to the show, which was a pity.

  没去看演出,这很遗憾。

  2021考研英语知识点:动词时态的语法解析

  语法是考研英语的基础,这部分在研究生英语考试中不再单独考查,但是语法知识贯穿在整个英语考卷的各个题型中。 完型填空题会直接考查语法知识;阅读理解题和英译汉中有大量的长难句,这些句子只有具备一定的语法知识才能正确分析;作文中要写出正确无误的句子,也需要语法知识。这部分基础如果欠缺,其它的综合能力提高起来将会很慢,所以所有考生都务必重视考研语法的复习。动词时态

  1)现在完成进行时态 (have/has been + -ing 分词构成): 动作或状态从过去某时开始,继续到现在,可能继续下去,也可能刚刚结束.

  I’ve been writing letters for an hour.

  I’ve been sitting in the garden.

  2)过去完成进行时(由had been + ing分词构成): 过去某个时刻以前一直在进行的动作

  I’d been working for some time when he called.

  We had been waiting for her for two hours by the time she came.

  3)将来完成进行时: 将来某个时刻以前一直在进行的动作.

  By next summer, he will have been working here for twenty years.

  In another month’s time she’ll have been studying here for three years.

  4)将来完成时(由shall/will have + 过去分词构成): 将来某时会业已发生的事.

  I shall have finished this one before lunch.

  They’ll have hit the year’s target by the end of October.

  常考知识点讲解:定语从句引导词

  that, who, whom: 非限制性定语从句, 如果修饰人, 一般用who, 有时用that (作主语时用who较多). 如果关系代词在从句中作宾语, 就应当用宾格 whom 或that, 但在大多数情况下都可以省略掉, 在口语中可用who代替whom.

  Here is the man (whom) you’ve been looking for.

  He is a man (that) you can safely depend on.

  The people (who/that) you were talking to were Swedes.

  There are some people here who I want you to meet.

  但在介词后只能用whom:

  This is the man to whom I referred.

  但在口语中一般都把介词放到句子后面去, 这时可用that, 但省略时更多一些.

  Have you met the person about whom he was speaking?

  Have you met the person (that) he was speaking about

  The girl to whom I spoke is my cousin.

  The girl (who/that) I spoke to is my cousin.

  限制性定语从句如果修饰“物”, 用关系代词that的时候较多, 也有时用which.. 当这个代词在从句中是用作宾语时, 在绝大多数情况下都是省略的, 特别是口语中(尤其是当被修饰的词是all, everything等词时):

  Have you everything you need?

  (Is there) anything I can do for you?

  All you have to do is to press the button.

  在介词后只能用which, 在口语中一般都把介词放到从句后部去, 这时可以用that, 但省略的时候更多一些:

  The tool with which he is working is called a wrench.

  The tool (that) he is working with is called a wrench.

  This is the question about which we’ve had so much discussion.

  This is the question (that) we’ve had so much discussion about.

  定语从句一般是修饰名词或代词的, 但间或也可以修饰整个句子a), 或是句子的一部分 b), 引导词用which:

  They have invited me to visit their country, which is very kind of them.

  The activity was postponed, which was exactly what we wanted

  When deeply absorbed in work, which he often was, he would forget all about eating and sleeping.

  She was very patient towards the children, which her husband seldom was.

  whose: 在表示“...的”这个概念时, 可用所有格 whose; whose 用于指物, 有时可与of which交替使用, 通常的词序是名词词组 + of which:

  Is there anyone in your class whose family is in the northeast?

  We had a meeting whose purpose was completely unclear. (…the purpose of which was…)

  He’s written a book the name of which I’ve completely forgotten. (…whose name I’ve…)

  of which前的名词词组也可以由some, any, none, all, both, several, enough, many, most, few以及基数词担任; 这些词也能用在 of whom之前.

  The buses, most of which were already full, were surrounded by an angry crowd.

  It’s a family of eight children, all of whom are studying music.

  关系副词 when, where, why: 它们的含义相当于 at which, in which, for which, 因此它们之间有交替使用的可能.

  The day when he was born…

  on which he was born…

  which he was born on…

  The office where he works…

  at which he works…

  which he works at…

  有时可用that替代关系副词, 在口语中that 可省略.

  Every time (that) the telephone rings, he gets nervous.

  This was the first time I had serious trouble with my boss.

  Do you know anywhere (that) I can get a drink?

  This is the place (where) we met yesterday.

  That is the reason (why) he did it.

  在the way 后也可用that 替代in which, 在口语中that也可省略.

  This is the way (that/in which) he did it.

  That’s the way I look at it.

  如果定语从句中谓语为 there is, 作主语的关系代词也常可省掉:

  I must make full use of the time there is left to me and do as much as I can for the people.

  This is the fastest train (that) there is to Nanjing.

  定语从句的简化: 定语从句与不定式结构, -ing分词结构, -ed分词结构以及无动词分句等有着转换关系.

  He was the only one to realize the danger (= who realized the danger).

  The woman driving the car (= who was driving the car) indicated that she was going to turn left.

  The man injured by the bullet (= who was injured by the bullet) was taken to hospital.

  All the women present (= who were present) looked up in alarm.

  2021考研英语:备考长难句的精炼

  The coming of age of the postwar baby boom and an entry of women into the male-dominated job market have limited the opportunities of teenagers who are already questioning the heavy personal sacrifices involved in climbing Japan’s rigid social ladder to good schools and jobs.

  一、重点词汇

  ① baby boom 婴儿潮,生育高峰期

  ② entry n. 进入;入口处;登记

  ③ male-dominated adj. 男人主宰的,男性主导的

  ④ sacrifice n/v. 牺牲;奉献

  ⑤ rigid adj. 严格的;僵硬的

  二、参考译文

  战后生育高峰期的到来,以及女性进入由男性主导的就业市场,都限制了青少年的发展机遇,这些青少年已经开始质疑在为了进好学校,找好工作,而攀登日本等级森严的社会阶梯的过程中所付出的沉重的个人代价是否值得。

  推荐阅读:

  2021考研英语:精析词汇的翻译盘点4

  2021考研英语:精析词汇的翻译盘点2

  2021考研英语:精析词汇的翻译盘点九


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  想了解更多考研英语网的资讯,请访问: 考研英语

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