定语从句语法知识点汇总范文.docx

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1、定语从句语法知识点汇总1 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样。 1)who, whom, that 这些词代替的先行词是人的名词或代词，在从句中所起作用如下： Is he the man who/that wants to see you? 他就是想见你的人吗?(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

2、 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 它们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

3、the countryside. 农村出现了前所未有的旺盛。(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) 2 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)when, where, why 关系副词when, where, why的含义相当于介词+ which结构，因此经常和介词+ which结构交替运用，例如： There are occasions

4、 when (on which) one must yield.任何人都有不得不屈服的时候。 Beijing is the place where (in which) I was born.北京是我的诞生地。 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 that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

5、 / when / in which) he was born.他父亲在他诞生那年逝世了。 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。 3 推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，就必需要求用关系代词;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. I'll

6、never forget the days when I worked together with you. 推断改错(注：先显示题，再显示答案，横线;用不同的颜色表示出。) (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 forge

7、t 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： 精确推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. whereB. that C. on which D. the one 例2. Is this the museum _ the exhibition was held. A. whereB. th

8、at C. on whichD. the one 答案：例1 D，例2 A 例1变为确定句： This museum is _ you visited a few days ago. 例2变为确定句： 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

9、 + 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 缘由状语) 。 4 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行缺少的部分，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

10、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.这幢房子很美丽，是我们上个月买的。(非限制性) 2) 当先行词是专出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 lo

11、vely garden.我去年买的的那幢房子带着个美丽的花园。 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. 他好像没抓住我的意思，这使我心烦。 Liquid water changes to vapor, which is called eva

12、poration. 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。 5 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，地点或缘由状语的介词+关系词结构可以同关系副词when 和where 互换。 This is the house in which I lived two years ago. This is the house where I lived two years ago. Do you remember the day on which you joined our club

13、? Do you remember the day when you joined our club? 6 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。 As we know, smoking is harmful to one's health. The sun heats the earth, which is very important to us. 典型例题 1)Alice received an invitation from

14、her boss, _came as a surprise. A. it B. that C. whichD. 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. whatB. whichC. thatD. it 答案B。which可代替句子，用于非限定性定语从句，而what不行。That 不能用于非限定性定语从句，it不为连词，使由

15、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. thatB. whichC. 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不行。 (2) as 代表前面的整个主句并在从句中作主语时，从句中的谓语必需是系动词;若为行为动词，则从句中的关系代词只能用which.。 在本题中，preve

16、nt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;suchas 中的as 是一种固定结构, 和一样。 I have got into the same trouble as he (has). 例2. as可引导非限制性从句，常带有'正如'。 As we know, smoking is harmful to one's health. As is know, 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

17、动式。 7 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) 8 what/whatever;that/what; who/whoever 1)what = the thing which;whatever = anything What you want has been s

18、ent here. Whatever you want makes no difference to me. 2) who= the person that whoever= anyone who (错)Who breaks the law will be punished. (错)Whoever robbed the bank is not clear. (对)Whoever breaks the law will be punished. (对)Who robbed the bank is not clear. 3) that 和 what 当that引导定语从句时 ，通常用作关系代词，而

19、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，作从句的详细成分，且不能省略。 I think (that) you will like the stamps. What we need is more practice. 9 关系代词that 的用法 1)不用that的状况 a) 在引导非限定性定语从句时。 (错)The tree, that is four hundred years old, is very famous here. b) 介词后不能用。 We depend on the land from

20、 which we get our food. We depend on the land that/which we get our food from. 2) 只能用that作为定语从句的关系代词的状况 a)在there be 句型中，只用that，不用which。 b)在不定代词，如：anything, nothing, the one, all, much, few, any, little等作先行词时，只用that，不用which。 c)先行词有the only, the very修饰时，只用that。 d)先行词为序数词、数词、形容词最高级时，只用that。. e)先行词既有人，又有物时。 举例： All that is needed is a supply of oil. 所需的只是供油问题。 Finally, the thief handed everything that he had stolen to the police. 那贼最终把偷的全部东西交给了警察。 定语从句语法学问点汇总