2017年中考英语语法大全：定语从句
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定语从句
1在复合句中做定语的从句称为定语从句，它可以用来修饰名词或代词。被定语从句修饰的名词或代词叫先行词。定语从句必须放在先行词后面。
2引导定语从句的词通常被称为关系词。关系词一般位于先行词与定语从句之间，且作为定语从句的一个成分。关系词又分为关系代词和关系副词。
I 关系代词引导的定语从句
关系代词所代替的先行词是人或物的名词或代词，并在句中充当主语、宾语、定语等成分。关系代词在定语从句中作主语时，从句谓语动词的人称和数要和先行词保持一致。
1)who, whom, that
这些词代替的先行词是人的名词或代词，在从句中作主语和宾语。例如：
Is he the man who/that wants to see you? 他就是你想见的人吗?(who/that在从句中作主语)
He is the man whom/ that I saw yesterday. 他就是我昨天见的那个人。(whom/that在从句中作宾语)
2) whose 用来指人或物，(只用作定语, 若指物，它还可以同of which互换)。例如：
They rushed over to help the man whose car had broken down. 那人车坏了，大家都跑过去帮忙。
Please pass me the book whose (of which) cover is green. 请递给我那本绿皮的书。
3)which, that所代替的先行词是事物的名词或代词，在从句中可作主语、宾语等。例如：
A prosperity which / that had never been seen before appears in the countryside.
农村出现了前所未有的繁荣。(which / that在句中作宾语)
The package (which / that)you are carrying is about to come unwrapped. 你拿的包快散了。(which / that在句中作宾语)
II. 关系副词引导的定语从句
关系副词可代替的先行词是时间、地点或理由的名词，在从句中作状语。
1) 关系副词when, where, why的含义相当于"介词+ which"结构，因此常常和"介词+ which"结构交替使用。例如：
I will never forget the day when I met her. 我将永远不会忘记我见到她的那一天
Beijing is the place where(in which) I was born. 北京是我的出生地。
Is this the reason why (for which) he refused our offer? 这就是他拒绝我们帮助他的理由吗?
2)that代替关系副词，可以用于表示时间、地点、方式、理由的名词后取代when, where, why和"介词+ which"引导的定语从句，在口语中that常被省略。例如：
His father died the year (that / when / in which) he was born. 他父亲在他出生那年逝世了。
He is unlikely to find the place (that / where / in which) he lived forty years ago. 他不大可能找到他四十年前居住过的地方。
III.判断关系代词与关系副词
方法一： 用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要求用关系代词;而不及物动词则要求用关系副词。例如：
This is the mountain village where I stayed last year. 这是我去年呆过的山村。
I'll never forget the days when I worked together with you.我永远不会忘记与你共事的日子。
判断改错：
(错) This is the mountain village where I visited last year.
(错) I will never forget the days when I spent in the countryside.
(对) This is the mountain village (which) I visited last year.
(对) I'll never forget the days (which) I spent in the countryside.
习惯上总把表地点或时间的名词与关系副词 where, when联系在一起。此两题错在关系词的误用上。
方法二： 准确判断先行词在定语从句中的成分(主、谓、宾、定、状)，也能正确选择出关系代词/关系副词。
例1. Is this museum ___ you visited a few days age?
A. where B. that C. on which D. the one
例2. Is this the museum ____ the exhibition was held.
A. where B. that C. on which D. the one
答案：例1 D，例2 A
例1变为肯定句： This museum is ___ you visited a few days ago.
例2变为肯定句： This is the museum ___ the exhibition was held.
在句1中，所缺部分为宾语，而where, that, on which都不能起到宾语的作用，只有the one既做了主句的表语，又可做从句的宾语，可以省略关系代词，所以应选D。
而句2中, 主、谓、宾俱全，从句部分为句子的状语表地点，既可用副词where，又因 in the museum词组，可用介词in + which 引导地点状语。而此题中，介词on 用的不对，所以选A。
关系词的选择依据在从句中所做的成分，先行词在从句中做主、定、宾语时，选择关系代词(who, whom, that, which, whose); 先行词在从句中做状语时，应选择关系副词 ( where 地点状语，when 时间状语，why 原因状语) 。
IV. 限制性和非限制性定语从句
1) 定语从句有限制性和非限制性两种。限制性定语从句是先行词不可缺少的部分，去掉它主句意思往往不明确;非限制性定语从句是先行词的附加说明，去掉了也不会影响主句的意思，它与主句之间通常用逗号分开。例如：
This is the house which we bought last month. 这是我们上个月买的那幢房子。(限制性)
The house, which we bought last month, is very nice.这幢房子很漂亮，是我们上个月买的。(非限制性)
2) 当先行词是专有名词或物主代词和指示代词所修饰时，其后的定语从句通常是非限制性的。例如：
Charles Smith, who was my former teacher, retired last year. 查理?史密斯去年退休了，他曾经是我的老师。
My house, which I bought last year, has got a lovely garden. 我去年买的的那幢房子带着个漂亮的花园。
This novel, which I have read three times, is very touching. 这本小说很动人，我已经读了三遍。
3) 非限制性定语从句还能将整个主句作为先行词, 对其进行修饰, 这时从句谓语动词要用第三人称单数。例如：
He seems not to have grasped what I meant, which greatly upsets me. 他似乎没抓住我的意思，这使我心烦。
Liquid water changes to vapor, which is called evaporation. 液态水变为蒸汽，这就叫做蒸发。
说明：关系代词that和关系副词why不能引导非限制性定语从句。
V. 介词+关系词
1)介词后面的关系词不能省略。
2)that前不能有介词。
3)某些在从句中充当时间，地点或原因状语的"介词+关系词"结构可以同关系副词when 和where 互换。例如：
This is the house in which I lived two years ago. 这是我两年前住过的房子。
This is the house where I lived two years ago.
Do you remember the day on which you joined our club? 还记得你加入我们俱乐部的那一天吗?
Do you remember the day when you joined our club?
VI. as, which 非限定性定语从句
由as, which 引导的非限定性定语从句，as和which可代整个主句，相当于and this或and that。As一般放在句首，which在句中。例如：
As we know, smoking is harmful to one's health. 如我们所知，吸烟有害健康。
The sun heats the earth, which is very important to us. 太阳使地球暖起来，这对我们人类很重要。
典型例题
1)Alice received an invitation from her boss, ___came as a surprise.
A. it B. that C. which D. he
答案C. 此为非限定性从句，不能用 that修饰，而用which.，it 和he 都使后
句成为句子，两个独立的句子不能单以逗号连接。况且选he句意不通。
2)The weather turned out to be very good, ___ was more than we could expect.
A. what B. which C. that D. it
答案B。which可代替句子，用于非限定性定语从句，而what不可。That 不能用于非限定性定语从句，it不为连词，使由逗号连接的两个句子并在一起在英语语法上行不通。
3)It rained hard yesterday, ____ prevented me from going to the park..
A. that B. which C. as D. it
答案B. as 和which在引导非限制性定语从句时，这两个关系代词都指主句所表达的整个意思，且在定语从句中都可以作主语和宾语。但不同之处主要有两点：
(1)as 引导的定语从句可置于句首，而which不可。
(2) as 代表前面的整个主句并在从句中作主语时，从句中的谓语必须是系动词;若为行为动词，则从句中的关系代词只能用which.。在本题中，prevent由于是行为动词，所以正确选项应为B。
as 的用法
例1. the same…as;such…as 中的as 是一种固定结构, 和……一样……。例如：
I have got into the same trouble as he (has). 我碰到了跟他一样的麻烦。
例2. as可引导非限制性从句，常带有'正如'。例如：
As we know, smoking is harmful to one's health. 如我们所知，吸烟有害健康。
As is known, smoking is harmful to one's health.
As是关系代词。例1中的as作know的宾语;例2中，它充当从句的主语，谓语动词know要用被动式。
VII. 先行词和关系词二合一
1) Whoever spits in public will be punished here. (Whoever 可以用 anyone who 代替)
2) The parents will use what they have to send their son to technical school.(what 可以用all that代替)
VIII. what/whatever; that/what; who/whoever
1)what = the thing which;whatever = anything。例如：
What you want has been sent here. 你要的动词都送来了。
Whatever you want makes no difference to me. 不管你要什么，跟我没什么关系。
2) who= the person that whoever= anyone who。例如：
(错)Who breaks the law will be punished.
(错)Whoever robbed the bank is not clear.
(对)Whoever breaks the law will be punished. 王子犯法，与庶民同罪。
(对)Who robbed the bank is not clear. 谁抢了银行还不清楚。
3) that 和 what
当that引导定语从句时，通常用作关系代词，而引导名词性从句时，是个不充当
任何成分的连接词。宾语从句和表语从句中的that常可省略。What只能引导名词性从句，用作连接代词，作从句的具体成分，且不能省略。例如：
I think(that)you will like the stamps. 我想你会喜欢这些邮票的。
What we need is more practice. 我们需要的是更多的实践。
IX. 关系代词that 的用法
1)不用that的情况
a) 引导非限定性定语从句时。例如：
(错)The tree, that is four hundred years old, is very famous here.
b) 介词后不能用。例如：
We depend on the land from which we get our food. 我们依赖土地获得食物。
We depend on the land that/which we get our food from.
2)
(一) which与that指物时可互相代替，但that比which更常见，尤其在口语中。但要注意that可用来指人，而which则不能指人。
只能用that不能用which引导的定语从句：
①定语从句所修饰的词，同时又被形容词级修饰时，定语从句只能用that引导;
This is the most interesting story (that) I have ever heard.
②定语从句所修饰的词，同时又被序数词修饰时，定语从句只能用that引导;
The children like the second Lesson that is about “The Football March”.
③定语从句所修饰的词，同时又被the only，the very或the same修饰时，
定语从句只能用that引导;
1) It is the only word (that) I know in the passage.
2) This is the same bicycle (that) I lost.
④定语从句修饰的词同时又被不定代词，如：all，any，no，every，little，many或much等修饰时，定语从句只能用that引导;
Here is all the money (that) I have.
⑤定语从句修饰词为everything，something，anything，nothing，all，none，much，little，few等不定代词时，定语从句只能用that引导。但something前有the时，定语从句可由which引出。
Here is something (that) I will tell you.
I want everything (that) I want.
⑥定语从句修饰的词中同时含有“人”和“物”的名词时，定语从句只能用that引导：
I can remember well the persons and some picture (that) I see in the room.
⑦定语从句修饰的词为one, ones时，定语从句用that引导：
Is it the one (that) you want?
⑧当主句的主语是疑问词 who或 which来提问时，为了避免重复，用that引导定语从句：]
Who is the girl that won the first place?
(二) who指人，that除指人外也指物，在从句中作主语或宾语。作宾语可省略，作主语不能省略。
1) The girl who often helps me with my English is from England. (作主语，不可省略)
2) The teacher who spoke at the meeting just now is having a rest in his office. (作主语，不可省略)
3) The boy (who/ that) I like isn’t here now. (作宾语，可省略)
注 意:
who与that指人时可互相代替，但下列情况只能用who不能用that引导的定语从句：
① 先行词是one，ones，anyone时，定语从句只能用who引导;
② 先行词为those时，定语从句只能用who引导;
③ There be句型开头。
另 注：(1) whom指人，为who的宾格形式,在句中只作宾语，其前没有介词时，也可用who替换使用，也可省略，如：
Who is the teacher (that/ who/ whom) Yanzhen is talking to? (作宾语，可省略)
Who is the teacher to whom Yanzhen is talking? (作宾语，介词to提到whom前，whom再此不可省略)
(2) whose 指人，也可指物，在从句中作定语，不可省略。如：
The building whose windows face to the south is our school. (作定语，不可省略)
注意：1)在关系代词that，which，who，whom引导的定语从句中，只有当他们做定语从句的宾语时，才可以省略。
2) 关系代词在定语从句中做主语，动词单复数由其前的名词或代词决定。
He who doesn’t study hard won’t pass the exam.
3) 因为关系代词或关系副词在定语从句中已充当一个成分，该从句中不能出现与它重复的成分。
That is the only movie (that)I’d like to see. (对)
That is the only movie (that)I’d like to see it. (错)
1在复合句中做定语的从句称为定语从句，它可以用来修饰名词或代词。被定语从句修饰的名词或代词叫先行词。定语从句必须放在先行词后面。
2引导定语从句的词通常被称为关系词。关系词一般位于先行词与定语从句之间，且作为定语从句的一个成分。关系词又分为关系代词和关系副词。
I 关系代词引导的定语从句
关系代词所代替的先行词是人或物的名词或代词，并在句中充当主语、宾语、定语等成分。关系代词在定语从句中作主语时，从句谓语动词的人称和数要和先行词保持一致。
1)who, whom, that
这些词代替的先行词是人的名词或代词，在从句中作主语和宾语。例如：
Is he the man who/that wants to see you? 他就是你想见的人吗?(who/that在从句中作主语)
He is the man whom/ that I saw yesterday. 他就是我昨天见的那个人。(whom/that在从句中作宾语)
2) whose 用来指人或物，(只用作定语, 若指物，它还可以同of which互换)。例如：
They rushed over to help the man whose car had broken down. 那人车坏了，大家都跑过去帮忙。
Please pass me the book whose (of which) cover is green. 请递给我那本绿皮的书。
3)which, that所代替的先行词是事物的名词或代词，在从句中可作主语、宾语等。例如：
A prosperity which / that had never been seen before appears in the countryside.
农村出现了前所未有的繁荣。(which / that在句中作宾语)
The package (which / that)you are carrying is about to come unwrapped. 你拿的包快散了。(which / that在句中作宾语)
II. 关系副词引导的定语从句
关系副词可代替的先行词是时间、地点或理由的名词，在从句中作状语。
1) 关系副词when, where, why的含义相当于"介词+ which"结构，因此常常和"介词+ which"结构交替使用。例如：
I will never forget the day when I met her. 我将永远不会忘记我见到她的那一天
Beijing is the place where(in which) I was born. 北京是我的出生地。
Is this the reason why (for which) he refused our offer? 这就是他拒绝我们帮助他的理由吗?
2)that代替关系副词，可以用于表示时间、地点、方式、理由的名词后取代when, where, why和"介词+ which"引导的定语从句，在口语中that常被省略。例如：
His father died the year (that / when / in which) he was born. 他父亲在他出生那年逝世了。
He is unlikely to find the place (that / where / in which) he lived forty years ago. 他不大可能找到他四十年前居住过的地方。
III.判断关系代词与关系副词
方法一： 用关系代词，还是关系副词完全取决于从句中的谓语动词。及物动词后面无宾语，就必须要求用关系代词;而不及物动词则要求用关系副词。例如：
This is the mountain village where I stayed last year. 这是我去年呆过的山村。
I'll never forget the days when I worked together with you.我永远不会忘记与你共事的日子。
判断改错：
(错) This is the mountain village where I visited last year.
(错) I will never forget the days when I spent in the countryside.
(对) This is the mountain village (which) I visited last year.
(对) I'll never forget the days (which) I spent in the countryside.
习惯上总把表地点或时间的名词与关系副词 where, when联系在一起。此两题错在关系词的误用上。
方法二： 准确判断先行词在定语从句中的成分(主、谓、宾、定、状)，也能正确选择出关系代词/关系副词。
例1. Is this museum ___ you visited a few days age?
A. where B. that C. on which D. the one
例2. Is this the museum ____ the exhibition was held.
A. where B. that C. on which D. the one
答案：例1 D，例2 A
例1变为肯定句： This museum is ___ you visited a few days ago.
例2变为肯定句： This is the museum ___ the exhibition was held.
在句1中，所缺部分为宾语，而where, that, on which都不能起到宾语的作用，只有the one既做了主句的表语，又可做从句的宾语，可以省略关系代词，所以应选D。
而句2中, 主、谓、宾俱全，从句部分为句子的状语表地点，既可用副词where，又因 in the museum词组，可用介词in + which 引导地点状语。而此题中，介词on 用的不对，所以选A。
关系词的选择依据在从句中所做的成分，先行词在从句中做主、定、宾语时，选择关系代词(who, whom, that, which, whose); 先行词在从句中做状语时，应选择关系副词 ( where 地点状语，when 时间状语，why 原因状语) 。
IV. 限制性和非限制性定语从句
1) 定语从句有限制性和非限制性两种。限制性定语从句是先行词不可缺少的部分，去掉它主句意思往往不明确;非限制性定语从句是先行词的附加说明，去掉了也不会影响主句的意思，它与主句之间通常用逗号分开。例如：
This is the house which we bought last month. 这是我们上个月买的那幢房子。(限制性)
The house, which we bought last month, is very nice.这幢房子很漂亮，是我们上个月买的。(非限制性)
2) 当先行词是专有名词或物主代词和指示代词所修饰时，其后的定语从句通常是非限制性的。例如：
Charles Smith, who was my former teacher, retired last year. 查理?史密斯去年退休了，他曾经是我的老师。
My house, which I bought last year, has got a lovely garden. 我去年买的的那幢房子带着个漂亮的花园。
This novel, which I have read three times, is very touching. 这本小说很动人，我已经读了三遍。
3) 非限制性定语从句还能将整个主句作为先行词, 对其进行修饰, 这时从句谓语动词要用第三人称单数。例如：
He seems not to have grasped what I meant, which greatly upsets me. 他似乎没抓住我的意思，这使我心烦。
Liquid water changes to vapor, which is called evaporation. 液态水变为蒸汽，这就叫做蒸发。
说明：关系代词that和关系副词why不能引导非限制性定语从句。
V. 介词+关系词
1)介词后面的关系词不能省略。
2)that前不能有介词。
3)某些在从句中充当时间，地点或原因状语的"介词+关系词"结构可以同关系副词when 和where 互换。例如：
This is the house in which I lived two years ago. 这是我两年前住过的房子。
This is the house where I lived two years ago.
Do you remember the day on which you joined our club? 还记得你加入我们俱乐部的那一天吗?
Do you remember the day when you joined our club?
VI. as, which 非限定性定语从句
由as, which 引导的非限定性定语从句，as和which可代整个主句，相当于and this或and that。As一般放在句首，which在句中。例如：
As we know, smoking is harmful to one's health. 如我们所知，吸烟有害健康。
The sun heats the earth, which is very important to us. 太阳使地球暖起来，这对我们人类很重要。
典型例题
1)Alice received an invitation from her boss, ___came as a surprise.
A. it B. that C. which D. he
答案C. 此为非限定性从句，不能用 that修饰，而用which.，it 和he 都使后
句成为句子，两个独立的句子不能单以逗号连接。况且选he句意不通。
2)The weather turned out to be very good, ___ was more than we could expect.
A. what B. which C. that D. it
答案B。which可代替句子，用于非限定性定语从句，而what不可。That 不能用于非限定性定语从句，it不为连词，使由逗号连接的两个句子并在一起在英语语法上行不通。
3)It rained hard yesterday, ____ prevented me from going to the park..
A. that B. which C. as D. it
答案B. as 和which在引导非限制性定语从句时，这两个关系代词都指主句所表达的整个意思，且在定语从句中都可以作主语和宾语。但不同之处主要有两点：
(1)as 引导的定语从句可置于句首，而which不可。
(2) as 代表前面的整个主句并在从句中作主语时，从句中的谓语必须是系动词;若为行为动词，则从句中的关系代词只能用which.。在本题中，prevent由于是行为动词，所以正确选项应为B。
as 的用法
例1. the same…as;such…as 中的as 是一种固定结构, 和……一样……。例如：
I have got into the same trouble as he (has). 我碰到了跟他一样的麻烦。
例2. as可引导非限制性从句，常带有'正如'。例如：
As we know, smoking is harmful to one's health. 如我们所知，吸烟有害健康。
As is known, smoking is harmful to one's health.
As是关系代词。例1中的as作know的宾语;例2中，它充当从句的主语，谓语动词know要用被动式。
VII. 先行词和关系词二合一
1) Whoever spits in public will be punished here. (Whoever 可以用 anyone who 代替)
2) The parents will use what they have to send their son to technical school.(what 可以用all that代替)
VIII. what/whatever; that/what; who/whoever
1)what = the thing which;whatever = anything。例如：
What you want has been sent here. 你要的动词都送来了。
Whatever you want makes no difference to me. 不管你要什么，跟我没什么关系。
2) who= the person that whoever= anyone who。例如：
(错)Who breaks the law will be punished.
(错)Whoever robbed the bank is not clear.
(对)Whoever breaks the law will be punished. 王子犯法，与庶民同罪。
(对)Who robbed the bank is not clear. 谁抢了银行还不清楚。
3) that 和 what
当that引导定语从句时，通常用作关系代词，而引导名词性从句时，是个不充当
任何成分的连接词。宾语从句和表语从句中的that常可省略。What只能引导名词性从句，用作连接代词，作从句的具体成分，且不能省略。例如：
I think(that)you will like the stamps. 我想你会喜欢这些邮票的。
What we need is more practice. 我们需要的是更多的实践。
IX. 关系代词that 的用法
1)不用that的情况
a) 引导非限定性定语从句时。例如：
(错)The tree, that is four hundred years old, is very famous here.
b) 介词后不能用。例如：
We depend on the land from which we get our food. 我们依赖土地获得食物。
We depend on the land that/which we get our food from.
2)
(一) which与that指物时可互相代替，但that比which更常见，尤其在口语中。但要注意that可用来指人，而which则不能指人。
只能用that不能用which引导的定语从句：
①定语从句所修饰的词，同时又被形容词级修饰时，定语从句只能用that引导;
This is the most interesting story (that) I have ever heard.
②定语从句所修饰的词，同时又被序数词修饰时，定语从句只能用that引导;
The children like the second Lesson that is about “The Football March”.
③定语从句所修饰的词，同时又被the only，the very或the same修饰时，
定语从句只能用that引导;
1) It is the only word (that) I know in the passage.
2) This is the same bicycle (that) I lost.
④定语从句修饰的词同时又被不定代词，如：all，any，no，every，little，many或much等修饰时，定语从句只能用that引导;
Here is all the money (that) I have.
⑤定语从句修饰词为everything，something，anything，nothing，all，none，much，little，few等不定代词时，定语从句只能用that引导。但something前有the时，定语从句可由which引出。
Here is something (that) I will tell you.
I want everything (that) I want.
⑥定语从句修饰的词中同时含有“人”和“物”的名词时，定语从句只能用that引导：
I can remember well the persons and some picture (that) I see in the room.
⑦定语从句修饰的词为one, ones时，定语从句用that引导：
Is it the one (that) you want?
⑧当主句的主语是疑问词 who或 which来提问时，为了避免重复，用that引导定语从句：]
Who is the girl that won the first place?
(二) who指人，that除指人外也指物，在从句中作主语或宾语。作宾语可省略，作主语不能省略。
1) The girl who often helps me with my English is from England. (作主语，不可省略)
2) The teacher who spoke at the meeting just now is having a rest in his office. (作主语，不可省略)
3) The boy (who/ that) I like isn’t here now. (作宾语，可省略)
注 意:
who与that指人时可互相代替，但下列情况只能用who不能用that引导的定语从句：
① 先行词是one，ones，anyone时，定语从句只能用who引导;
② 先行词为those时，定语从句只能用who引导;
③ There be句型开头。
另 注：(1) whom指人，为who的宾格形式,在句中只作宾语，其前没有介词时，也可用who替换使用，也可省略，如：
Who is the teacher (that/ who/ whom) Yanzhen is talking to? (作宾语，可省略)
Who is the teacher to whom Yanzhen is talking? (作宾语，介词to提到whom前，whom再此不可省略)
(2) whose 指人，也可指物，在从句中作定语，不可省略。如：
The building whose windows face to the south is our school. (作定语，不可省略)
注意：1)在关系代词that，which，who，whom引导的定语从句中，只有当他们做定语从句的宾语时，才可以省略。
2) 关系代词在定语从句中做主语，动词单复数由其前的名词或代词决定。
He who doesn’t study hard won’t pass the exam.
3) 因为关系代词或关系副词在定语从句中已充当一个成分，该从句中不能出现与它重复的成分。
That is the only movie (that)I’d like to see. (对)
That is the only movie (that)I’d like to see it. (错)
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