2024年初中英语一轮专项复习归纳之定语从句

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2024年初中英语一轮专项复习归纳之定语从句

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2024年初中英语一轮专项复习归纳之定语从句

定语从句是英语中的一种从句类型,通常由关系代词(如that、who、which、whose)或关系副词(如when、where、why)引导。定语从句在句中的作用是作为定语来修饰先行词,使先行词的含义更加具体或详细。
定语从句通常由关系代词或关系副词引导,如:
定语从句(Attributive clause):由关系代词引导,作为定语来修饰先行词。例如:
That is the house where I grew up.(那是我长大的家。)
She is the girl who helps me with my homework every night.(她是每个晚上帮我做作业的女孩。)
定语从句(attributive clause):由关系副词引导,作为定语来修饰先行词。例如:
When I was a child, I used to love playing in the garden.(当我还是个孩子的时候,我喜欢在花园里玩耍。)
Why do we need to study English (我们为什么要学习英语呢?)
定语从句在句中可以充当主语、宾语、表语、定语等成分。例如:
The book that I read last week is really interesting.(我上周读的那本书真的很有趣。)
She is the person who/that I told about my plan.(我是告诉过她我的计划的。)
The car that/which I drive is very fast.(我所驾驶的汽车非常快。)
定语从句修饰复合句中的名词或代词,通常把这个被修饰词叫做先行词,把引导定语从句且在从句中作主语、宾语或定语的引导词叫做关系代词。
关系代词的分类
关系代词有主格,宾格和属格(所有格)之分,并有指人与指物之分。that的用法最广,that 可指人也可指物。见表:
一、指人的关系代词。
指人的关系代词包括who和whom,在定语从句中用作引导词,用来引导定语从句,同时代替先行词在从句中担任动词的主语。
例如:
The man who/that is talking with Mr. Wang is a famous doctor.(正在和王先生说话的那个人是一个有名的医生。)
She is the woman who/that he met at the party last night.(她是他昨晚在派对上遇到的女人。)
需要注意的是,在介词后使用关系代词who时,不能省略关系代词,而在使用关系代词whom时,可以省略关系代词。
例如:
I saw the movie that/which was shown last week.(我看了上周播放的那部电影。)
She is the person who/that I told about my plan.(我是告诉她我的计划的。)
二、指物的关系代词。
指物的关系代词包括which和that,在定语从句中用作引导词,用来引导定语从句,同时代替先行词在从句中充当主语或宾语。
例如:
The book which/that I bought yesterday is very interesting.(我昨天买的那一本非常有趣。)
She lent me the car that/which she drove to work.(她开车去上班时借给了我那辆车。)
需要注意的是,在使用关系代词which时,定语从句中的谓语动词必须用单数形式,而在使用关系代词that时,定语从句中的谓语动词必须用复数形式。
例如:
The car which/that I bought yesterday is very expensive.(我昨天买的那一辆车非常昂贵。)
She lent me the books that/which she read last week.(她上周读的那几本书让我借走了。)
三、指人或物的关系代词。
指人或物的关系代词是指既可以指人又可以指物的代词,包括who、which和that。在定语从句中用作引导词,用来引导定语从句,同时代替先行词在从句中充当主语、宾语或表语。
例如:
The person who/that you met at the party last night was very nice.(你在派对上遇到的那人非常友善。)
The book which/that I bought yesterday is very interesting.(我昨天买的那一本非常有趣。)
She lent me the car that/which she drove to work.(她开车去上班时借给了我那辆车。)
四、其它关系代词。
but,as,than作关系代词引导定语从句
but: but作为关系代词,引导定语从句时,通常表示转折关系,用于表达“但是”的意思。例如:
The book that/which I read last week is very interesting, but it is not easy to understand.(我上周读的那本书非常有趣,但是很难懂。)
as: as作为关系代词,引导定语从句时,通常表示类比关系,用于表达“就像”的意思。例如:
She is as brave as her brother.(她和她哥哥一样勇敢。)
than: than作为关系代词,引导定语从句时,通常表示比较关系,用于表达“比”的意思。例如:
The new phone is faster than the old one.(新手机比旧手机更快。)
需要注意的是,在使用关系代词but时,定语从句中通常不使用形容词性物主代词(如my,your,his,her等),而在使用关系代词as和than时,定语从句中通常不使用冠词或形容词性物主代词。
在使用上述三个特殊的关系代词时,还要注意区分下列两个词组: 1.'such...that...'表'如此……以致……'的意思,用来引导一个结果状语从句;而'such...as...'表'像……这(那)样'的意思,用来引导定语从句,as在定语从句中充当主、宾、表语等。试比较下列两个句子: ① He is such an honest man that we respect him.他是一个如此诚实的人以致我们都尊敬他。 ② He is such an honest man as we respect.他像我们所尊敬的那种诚实的人。
2.'the same...that...'表同一人或物,而'the same...as...'表同种类的东西。试比较下列两个句子: ①This is the same book that I lost.这就是我丢失的那一本书。(指同一本书) ②This is the same book as I lost.我丢失的那一本书一模一样。(并不是原来的那一本)
学习定语从句的几个误区
一、误认为关系代词whose只用于修饰人
whose用作疑问代词时,主要用于指人;但用作关系代词时,它既可指人也可指物。如:
It was an island, whose name I have forgotten. 它是一座岛,名字我忘了。
The factory, whose workers are all women, is closed during the holidays. 这家工厂工人都是妇女,在假期中工厂关门了。
二、混淆定语从句与并列句
请看下面两题:
1. He has two children, and both of _________ are abroad.
A. them B. which C. whom D. who
2. He has two children, both of _________ are abroad.
A. them B. which C. whom D. who
第1题选A,第2题选C。由于第1题中用了并列连词and,从而使整个句子为并列句,and后应是一个独立的简单句,所以选A不选C;第2题没有并列连词and,both of whom are abroad为非限制性定语从句。
三、混淆关系代词与关系副词
有的同学一看到先行词是表示时间、地点、原因的名词,就认为一定要用关系副词,其实也不一定。在此情况下,还要看关系词在定语从句中是用作什么成分,若是用作状语,则用关系副词,若不是用作状语(如用作主语、宾语等)则不能用关系副词,而用关系代词。比较:
This is the factory where I want to work. 这就是我想工作的工厂。(work为不及物动词where在从句中用作状语)
This is the factory that I want to visit. 这就是我想参观的工厂。(visit为及物动词,that用作visit的宾语)
The reason why he can’t come is that he is ill. 他没来的是因为他病了。(come为不及物动词,why在定语从句中用作状语)
The reason that he put forth is very important. 他提出的理由很重要。(put forth为及物动词,that在定语从句中用作其宾语)
四、误认为逗号后一定是非限制性定语从句
有的同学一看见逗号,就以为一定要选which而不选that,但问题是有时根本就不是定语从句。如:
1. If a book is in English, _________ means slow progress for you.
A. as B. which C. what D. that
2. When I say two hours, _________ includes time for eating.
A. as B. which C. what D. that
以上两题均应选that,而不能选which,因为它们根本不是定语从句。之所以选that,是因为句中已有if和when引导的状语从句,逗号后为主句,that为主句主语。

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