第一单元语法非限定性定语从句
非限制性定语从句
非限制性定语从句非限制性定语从句根据定语从句与先行词的关系，定语从句可分为限制性定语从句及非限制性定语从句。
限制性定语从句紧跟先行词，主句与从句不用逗号分开，从句不可省去；非限制性定语从句主句与从句之间有逗号分开，起补充说明作用，如省去，意思仍完整。
以下是店铺整理的非限制性定语从句，欢迎大家借鉴与参考，希望对大家有所帮助。
非限制性定语从句 1非限制性定语从句：即非限定性定语从句，起补充说明作用，缺少也不会影响全句的理解，在非限定性定语从句的前面往往有逗号隔开，如若将非限定性定语从句放在句子中间，其前后都需要用逗号隔开。
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。
使用规则及注意事项：1、which引导的非限定性定语从句是用来说明前面整个句子的情况或主句的某一部分。
2、as有时也可用作关系代词。
as引导非限制性定语从句，若as在从句中作主语，其引导的句子可以放在句首，也可以放在句中。
但which引导的非限制性定语从句只能放句中。
例句：As is reported in the newspaper, some artistic treasures (艺术珍品) will be on show at the exhibition on the weekend.3、在非限定性定语从句中，关系词不能用that。
限制性定语从句和非限制性定语从句有四大区别：1在句中作用不同限制性定语从句对被修饰的先行词有限定制约作用，使该词的含义更具体，更明确。
限制性定语从句不能被省略，否则句意就不完整。
非限制性定语从句与先行词关系不十分密切，只是对其作一些附加说明，不起限定制约作用。
如果将非限制性定语从句省去，主句的意义仍然完整。
2外在表现形式不同限制性定语从句因与先行词关系密切，所以不可以用逗号将其与主句隔开;而非限制性定语从句与先行词关系不十分密切，所以可用逗号将其与主句隔开。
高中非限定性定语从句
高中英语教研组(高一英语)Module5.2教师：杨老师时间：2013-4定语从句知识拓展一．非限制性定语从句1. 限制性定语从句：从句与主句关系密切，去掉从句，主句意义不完整，甚至不合逻辑。
I was the only person in our office who was invited.2. 非限制性定语从句：从句对先行词关系不密切，去掉定从句，意思仍然完整。
形式上用逗号隔开，不能that用引导。
China, which was founded in 1949, is becoming more and more powerful.As is announced in today's papers, all the schools will reopen on September 1st.Tom’s father, who is over sixty, still works hard day and night.The spring festival is an important holiday, when family members get together.She is going to live in Beijing, where she has some close friends.3. 用which而不用that的情况：①引导非限制性定语从句；②代表整个主句的意思；③介词+ 关系代词。
He had failed in the maths exam, which made his father very angry.This is the room in which my father lived last year.4. as引导非限制性定语从句既可放在主句之前，也可放在主句之后，用来修饰整个句子。
通常用下列句型：as is known to all, as is said, as is reported, as is announced, as we all know, as I expect 等。
非限制性定语从句知识点总结
非限制性定语从句知识点总结非限制性定语从句是英语语法中的一个重要知识点，对于准确、丰富地表达语言有着重要作用。
接下来，让我们系统地了解一下非限制性定语从句的相关内容。
一、非限制性定语从句的定义非限制性定语从句是对先行词进行补充说明的从句，它与先行词的关系不是十分紧密，即使去掉从句，主句的意思仍然完整。
它与限制性定语从句的一个重要区别在于，非限制性定语从句在先行词和从句之间通常用逗号隔开。
例如：“My father, who is a doctor, works very hard”在这个句子中，“who is a doctor”就是一个非限制性定语从句，先行词是“my father”。
如果去掉这个从句，“My father works very hard”这个主句的意思仍然清晰完整。
二、非限制性定语从句的引导词1、关系代词（1）which：which 可以指代物，在从句中作主语、宾语等成分。
例如：The house, which was built in 1980, needs repairing （which 指代“the house”，在从句中作主语）（2）who：who 指代人，在从句中作主语。
例如：Mr Smith, who has just come from abroad, is very kind （who 指代“Mr Smith”，在从句中作主语）（3）whom：whom 指代人，在从句中作宾语。
例如：The girl, whom I met yesterday, is very friendly （whom 指代“the girl”，在从句中作宾语）（4）whose：whose 可以指代人或物，在从句中作定语。
例如：The boy whose father is a teacher studies very hard （whose 指代“the boy”的，在从句中作定语）2、关系副词（1）when：when 在从句中作时间状语。
非限制性定语从句(高一)
非限制性定语从句一．限定性定语从句与非限定性定语从句的区别二．引导非限制性定语从句的关系代词有as，which，who， whom，whose等，作定语从句的主语、宾语、表语及定语。
关系副词有when，where等，作定语从句的状语。
关系代词和关系副词在定语从句中一般不能省。
1.who，whom，whose等引导非限制性定语从句时，指代人的普通名词、专有名词等。
表示正是或专指先行词等情况。
在定语从句中作主语、宾语、定语等。
Bob's father，who worked on the project，spent four years in Egypt．鲍勃的父亲从事这项工程，在埃及度过了四年。
His mother，whom he loved dearly， died in 1818．他非常爱戴他的母亲，她死于 1818年。
Mr King，whose legs were badly hurt， was quickly taken to hospital．金先生的腿受了重伤，他很快就被送去住院了。
2.when，where引导非限制性定语从句时，作定语从句的状语。
when=and then， where =and there。
why不引导非限制性定语从句。
He was quickly taken to hospital，where a doctor wanted to examine Mr King's legs．金先生很快被送去住院，在那里一个医生要检查他的腿。
We will put off the outing until next week，when we won't be so busy．我们把郊游推迟到下个星期，当我们不忙的时候。
3.关系代词as和which 引导的定语从句as 和which 引导非限制性定语从句时，其用法有相同之处，也有不同之处。
具体情况是：①as 和which都可以在定语从句中做主语或宾语，代表前面整个句子。
非限定性定语从句
非限定性定语从句非限定性定语从句是英语语法中的一个重要概念。
它用于补充说明主句的内容，并且在语法上与主句有较弱的联系。
非限定性定语从句通常用逗号将其与主句隔开，有时也可以用破折号或括号。
非限定性定语从句可以用来修饰人、事物、地点、时间等，它的使用丰富了句子的表达方式，使句子更加准确、生动。
下面将通过一些具体的例子来解释非限定性定语从句的用法和特点。
1. 用于修饰人：例句1：Emily, who is my best friend, is also an excellent violinist.（埃米莉，我的好朋友，也是一位出色的小提琴手。
）例句2：Tom, whose father is a doctor, wants to become a lawyer.（汤姆的爸爸是个医生，他想成为一个律师。
）在这两个例句中，非限定性定语从句都用来修饰一个人，并对他们进行具体的描述。
2. 用于修饰事物：例句3：The Eiffel Tower, which was built in 1889, is a famous landmark in Paris.（埃菲尔铁塔，建于1889年，是巴黎的一个著名地标。
）例句4：I bought a dress, which is made of silk, for the party.（我为晚会买了一条丝质的裙子。
）这两个例句中，非限定性定语从句被用来修饰一个具体的物体或事物，并提供了更多的细节。
3. 用于修饰地点：例句5：London, where I spent my childhood, holds a special place in my heart.（伦敦，在那里度过了我的童年，对我来说意义非凡。
）例句6：I visited Beijing, which is the capital of China, last year.（我去年参观了中国的首都北京。
）这两个例句中，非限定性定语从句被用来修饰一个地点，并提供了该地点的额外信息。
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必修第一册第一单元重点语法
定语从句的定义：
定语从句是由关系代词或关系副词引导的从句，其作用是作定语修饰主 句的某个名词成分，相当于形容词。 定语从句又分为限制性定语从句和非限制性定语从句。
限制性定语从句就是对某个名词（先行词）起约束作用，使该词含义 更具体。
如girl, a girl who is beautiful. 对girl这个词限定起来，而不是随便什么 girl。
A: which B: where C: in which D: what
句式分析，此句不缺少东西， 如果去掉从句，句意完整。
be famous for...
3: Last summer we visited the West Lake, __ Hangzhou is famous in the world.
He said that he had never seen her before, _______ was not true.
In the presence of so many people he was little tense, ______ was understandable.
which在非限制性定语从句中可指代和修饰的是主句中的名词，形容词，短语，其 他从句或整个主句，在从句中作主语，动词宾语，介词宾语或表语。
3: The boy, whose father is an engineer, studies very hard.
总结： 1：非限制性定语从句起补充说明的作用， 在句子中不充当成分，缺少也不会影响全 句的理解，它与主句之间通常用逗号隔开。
1：who John,__w_h_o_ sells ancient vases,is an old friend of my father’s. His sister,__w_h_o__ works in an antique shop,is coming to see him tomorrow.
非限制性定语从句
• Her brother, who is now a soldier, always encourages her to go to college. • 她哥哥是当兵的，他总是鼓励她上大学。 • （意含： 她只有一个哥哥。）
• . All the books that have pictures in them are well written.
C • 例4 I had told them the reason ______ I didn’t attend the meeting. •
• •
A. when C. why
B. which D. for that
• 解析： 例3意为：“我早已把理由告诉他们， 于是我没有出席会议。”先行词为reason 时，非限制性定语从句应用for which引导， 故选A。
C • 5．Write a letter to a friend，____has some difficulties with his studies． M • 6．There are four rooms in the house，____ is a drawing room． H • 7．We will move into the new house next week，____it will be completed． A • 8．When lost in work，he often was，____he would forget all about eating and sleeping．
所有里面带插图的书都写得很好。 （意含： 不带插图的书则不一定写得好。）
• All the books, which have pictures in them, are well written.
非限定性定语从句
定语从句定语从句是由关系代词和关系副词引导的从句，其作用是作定语修饰主句的某个成分，定语从句分为限定性和非限定性从句两种。
非限定性定语从句：非限定性定语从句的作用是对所修饰的成分作进一步说明，通常和主句间用逗号隔开，将从句拿掉后其他部分仍可成立1. which引导的非限定性定语从句来说明前面整个句子的情况或主句的某一部分2. 在引导限定性定语从句时，that有时相当于in which, at which, for which或at which关于定语从句的简单的概念1．先行词：被定语从句所修饰的词。
2．关系词：是指连接先行词和定语从句并且在定语从句中做一定成分的词，既包括关系代词，又包括关系副词。
3．定语从句一般放在被修饰的词后面。
1. He who/that gains time gains all.2. The years teach much which/that the days never know.3. Does Faye Wong still love the singer whose name is Nicolas?4. Do you know that guy whom my girl is talking to?1.由who, whom, whose引导的定语从句：这类定语从句中，who用作主语，whom用作宾语，whose用作定语。
例如：This is the man who helped me.The doctor whom you are looking for is in the room.Do you know the man whose name is Wang Yu?2.which引导的定语从句：which在从句中作主语或谓语动词和介词的宾语。
例如：This is the book which you want.The building which stands near the river is our school.The room in which there is a machine is a workshop.3.由that引导的定语从句：that在定语从句中可以指人或物，在从句中作主语、谓语动词或介词的宾语。
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This is the man (whom/who/that) we are talking about. 这就是我们正在谈论的那个人。(限制性定语从句) The young man had a new girlfriend, whom he wanted to impress. 这位年轻人新交了一个女朋友，他想给她留下印象。(非限 制性定语从句) ②在限制性定语从句中，先行词指人时可以用that引导， 但在非限制性定语从句中先行词指人时，关系代词只能用who 或whom。 She has a younger brother, who is an English teacher. 她有一个弟弟，他是一名英语老师。
didn’t attend the mewehotimng. 4.This is the hero ,who we
are proud owfh.ere 5.The house I lived last year is bought by a rich man. 6.The house,whIelrieved last year is bought by a rich man.
journey to Beijing? 10．The famous singer who is from Britain has a number of
devoted fans in China. 11．The old man has two daughters both of whom work as
Ⅲ.语段填空(用适当的关系词填空)
The very film 1. that is called Titanic is such a beautiful and sad love story 2.as is popular with the public, 3. whose hero and heroine are Jack and Rose. Rose is a young beautiful woman with
关系词
Ⅰ.限制性定语从句
The man who lives next to us sells vegetables. You must do everything that I do. I have found the book which I lost. I visited the school where I studied.
2.which as 的用法
as 和which都可以在定语从句中做主语或宾语，代表前面整个句子。 as 引导的非限制性定语从句可以放在主句之前、主句之后，甚至还可以分割 主句。 which译这那引导的非限制性定语从句只可放在主句之后。另外，as 常 常有“正如、正像”的含义。当主句和从句之间存在着逻辑上的因果关系时， 关系词往往只用which。 ___A_s__is known to all, the earth travels r当ou从n句d 的th谓e S语u动n.词z是x.bxekknown/ expected/
限制性 非限制性
形式上 不用逗号
用逗号
与主句 紧密；
不紧密；
的关系 修饰限制； 补充说明；
去掉后,
去掉后,
主句意义不完整 主句意义完
整
限制性
先行词
名词/代词
可否用that why（其 余都可用 )
可以
关系代词(who
,whom,which,that) 做宾语时可否省略 who是否可代替 whom
Before Jack left Rose forever, he encouraged Rose to live well for him. 9. As is known to all, love is the strongest strength. And that's the reason 10. why Rose could live alone and tell us the
believed/ imagined/ said/ shown/ pointed out/ 或usually happen/ be often the case 等习惯性 用语中用as.
doctors. 12．She has several balls the largest of which is the blue one.
非限制性定语从句：
对所修饰名词和代词的从句做附加或者补充说明， 有逗号。
先行词 定语从句
陡W坡at塘erfWalal terfall, wwhhiichh is in Guizhou, is 105 meters wide and 21 meters high.
(3)关系代词省略情况不同 关系代词在限制性定语从句中作宾语时可省略，而非限制 性定语从句的所有关系代词均不可省略。 This is a good film (which/that) I saw a few days ago. 这是我几天前看过的一部好影片。(限制性定语从句) The summer holiday, which we're looking forward to, is drawing near. 我们盼望的暑假就要来了。(非限制性定语从句)
[即时演练] (1)写出下列句子中 which 指代的内容(先行词） ①Mike sold his old furniture, which made his father angry. which 指代 Mike sold his old furniture ②The house which I bought last month has a lovely garden. which 指代the house
4. whom her mother went to America. Jack, 5. who won a ship ticket by playing cards, is a poor painter. They met and fell in
love with each other on Titanic 6. where they had a happy time. Sadly, the nice journey was destroyed by a huge ice-berg。7W. hen Jack lost his life for saving Rose ，everyone would be moved by the selfless way inw8h.ich most people can't behave in real life.
[我的发现] (1)例句①中含which引导的 非限制性 定语从句；例句②中含 which引导的 限制性定语从句；在形式上非限制性定语从句与
限制性定语从句的区别在于：关系词前是否有 逗号 。 (2)以上例句中含非限制性定语从句的有①③⑥ ；含限制性定 语从句的有 ②④⑤ 。
二、限制性定语从句与非限制性定语从句的用法比较 1．形式不同 限制性定语从句和主句之间没有逗号；非限制性定语从句必 须用逗号与主句隔开。 Here is the man who has been punished by the boss. 这就是那个被老板惩罚的人。(限制性定语从句) The project, which lasted three years, cost no less than $1 billion. 这个工程历时三年，耗资多达十亿美元。(非限制性定语从句)
2．先行词不同 限制性定语从句的先行词只能是一个名词或代词，而非限制 性定语从句的先行词可以是一个词，也可以是整个主句。试比较：
This is the best novel that I have ever read. 这是我曾经看过的最好的小说。(限制性定语从句，先行词 是 novel) The novel, which I read last night, is very interesting. 我昨天晚上看过那部小说了，它非常有意思。(非限制性定 语从句，先行词为 novel) The novel is very interesting, which makes me very excited. 那部小说很有意思，这让我很兴奋。(非限制性定语从句， which 指代前面整句话的内容)
关系词
探究发现
①This gift was the Amber Room, which was given this name because several tons of amber were used to make it. ②The amber which was selected had a beautiful yellowbrown colour like honey. ③However, the next King of Prussia, Frederick William Ⅰ， to whom the amber room belonged, decided not to keep it. ④Later, Catherine Ⅱ had the Amber Room moved to a palace outside St Petersburg where she spent her summers. ⑤This was a time when the two countries were at war. ⑥There is no doubt that the boxes were then put on a train for Königsberg, which was at that time a German city on the Baltic Sea.
3．关系词的使用情况不同 (1)通常 that, why 不可用于引导非限制性定语从句，指物 时要用 which 代替 that, for which 代替 why Most people didn't vote for him, which disappointed him. 大多数人没有投票支持他，这使他感到失望。 I have told them the reason, for which I changed my mind. 我已经告诉了他们我改变主意的原因。 (2)关系代词替代情况不同 ①关系代词 whom 在限制性定语从句中作宾语时可用 who 代替，但在非限制性定语从句中作宾语时不可用 who 代替。