(完整版)高中英语非限定性定语从句语法归纳

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高中非限定性定语从句

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。

高考非限制性定语从句详解

高考非限制性定语从句详解
Finish the attributive clauses below: 1. The lesson w__h_i_ch__/_t_h_a_t we studied
yesterday was hard to understand. 2. You can take any book _t_h_a_t interests
I. which引导非限制性定语从句, 代替整 个主句。
1. He missed the show, which was really a great pity. 他错过了演出,这真是很大的遗憾。
2. He invited me to dinner, which made me very happy. 他请我吃饭,这使我很高兴。
非限制性定语从句
3. He seems not to have grasped what I meant, which greatly upsets me.
他似乎没领会我的意思, 这使我心烦。
非限制性定语从句
Conclusion 3 1. 限制性定语从句可以由关系代词,关系副词来
引导,关系代词作宾语时可以省略。 2. 非限制性定语从句既可修饰先行词,又可修饰
3. I bought a car yesterday, _w_h_i_c_hcost me a lot.
4. Xi’an,w_h_i_c_h__I visited last year, is a nice old city.
5. He will come to see me next July, _____ whehewnon’t be so busy.
son than to the others, ____ made the
others envy him.

最全!非限定性定语从句——详解

最全!非限定性定语从句——详解
限制:关系代词5个+ 关系副词3个 非限:没有that和why
1. It began to rain, ___C____ was exactly
what we wanted. A. that B. what C. which D. it
2. He’s from Shanghai, __A___
population is the largest of all cities in China.
A. whose
B. its
C. which
D. that
3. Great changes have taken place in the
small town, ___A___ the famous writer
spent his childhood. A. where B. when C. that D. which
座的时间和地点,以及需要做什么准备。
提升词语:lecture (讲座), 提示问题:What do you advise Peter to
prepare for it?
你可以准备一些关于京剧的书籍。
我建议你准备一些关于京剧的书籍。 You could prepare some books which
I keep the water which I used before to water the tree.
(2018 北京卷)
某英文网站正在开展以“节约是美德”为主 题的征文活动。假如你是李华,请用英语写 一篇短文投稿,谈谈生活中你是怎么做到,
以及这样的意义。
提示词语:thrifty (节约的),save, turn off 提示问题:What do you do in your daily

非限定性定语从句详解

非限定性定语从句详解

②引导非限定性定语从句的关系副词主要有:when,where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. 在引导限定性定语从句时,that有时相当于in which, for which 或at which 。

其中,介词的选用,依据从句中的动词所需搭配的介词来选用。

例句:①Attitudes towards daydreaming are changing much in the same way that(in which) attitudes towards night dreaming have changed.人们对白日做梦的态度正在改变,这与人们对夜间做梦的看法的变化有非常相似之处。

②I like the music for the very rea son that(for which) he dislike it.我出于某种原因喜欢这种音乐,而他恰恰与我相反。

③We arrived the day that(on which) they left.—刚好我们到的那天他们走了。

3. 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 will be on show at the exhibition on the weekend.4. 在非限定性定语从句中,关系词不能用that。

限定性定语从句与非限定性定语从句的区别1.限定性定语从句: 从句不能省略,如果省略整个句子意思不完整。

非限定性定语从句: 从句可以省略,如果省略整个句子意思仍然完整。

\2.限定性定语从句: 先行词可以用that 引导。

非限定性定语从句: 先行词不可以用that 引导。

高中英语2025届高考语法难点非限制性定语从句知识讲解

高中英语2025届高考语法难点非限制性定语从句知识讲解

高考英语语法难点非限制性定语从句一、非限制性定语从句1.非限制性定语从句的构成非限制性定语从句对先行词进行补充说明,去掉不会影响主句的意思,通常用逗号与主句隔开。

先行词可以是主句中的某个名词或名词词组,也可以是主句中的谓语部分,或者是整个主句。

如:My grandmother,who is over eighty years old, still does housework on her own.(先行词为My grandmother)The plane was delayed,which made the passages very angry.(先行词为整个主句The plane was delayed)He sang us a folk song,which he had learned during his stay in the countryside.(先行词为a folk song)Mrs.Zhang is extremely popular amongstudents, as is common knowledge.(先行词为整个主句,从句对主句内容进行评述)2.非限制性定语从句的关系词非限制性定语从句由关系代词which、who、whom、whose或关系副词when、where等引导。

1) who、which引导非限制性定语从句并在从句中作主语。

如:Bob lent me a thousand dollars,which was exactly the amount I need.鲍勃借给我一千美元,正好是我所需要的数目。

The children,who wanted to play football, were disappointed when it rained.想踢足球的孩子们因下雨而感到失望。

The computer,which seems to play the role of a human brain, is often called an electronic brain.计算机似乎起着人脑的作用,所以常被称为电脑。

非限定性定语从句

非限定性定语从句

详细描述
where引导非限定性定语从句,用于修饰前 面的地点,提供更多关于这个地点的信息, 但并不影响主句的意思。例如:“The place where the accident happened is not far from here.”(事故发生的地方离这里不远。)
why
总结词
用于指代原因
详细描述
非限定性定语从句还可以用来强调某个名词或代词,突出其重要性。
02 非限定性定语从句的引导 词
who
总结词
用于指代人
VS
详细描述
who引导非限定性定语从句,用于修饰前 面的人,提供更多关于这个人的信息,但 并不影响主句的意思。例如:“The teacher who was standing at the door is very popular with students.”(站在 门边的老师很受学生欢迎。)
VS
例如:“他的朋友,是一位医生,昨 天来看望了他。”在这个句子中,非 限定性定语从句“是一位医生”补充 说明了“他的朋友”的职业。
先行词指物
先行词指物时,非限定性定语从句可以用来 描述先行词的特征、用途或来源等。
例如:“这辆车,是他的生日礼物,非常漂 亮。”在这个句子中,非限定性定语从句“
是他的生日礼物”描述了这辆车的来源。
非限定性定语从句通常用逗号与主句 隔开,因此也被称为“逗号从句”。
特点
非限定性定语从句与主句的关系不是紧密的,而是相对独立的,它可以被省略而不影响主句的意义。
非限定性定语从句通常不使用关系代词that引导,而是使用关系代词which、who、whom等。
作用
非限定性定语从句可以用来补充说明名词或代词的属性、特征、来源等,使句子更加完整和丰富。

高中英语非限制定语从句

高中英语非限制定语从句

非限制定语从句
定语从句分为限制性定语和非限制性定语从句,非限制性定语从句在句中主要起补充说明作用,与主句之间往往有逗号隔开,独立存在,确实也不会影响整个句子的意思。

1.who引导的非限制性定语从句
who引导的非限定性定语从句在句中作从句的主语。

eg. Our guide,who was a French Canadian,was an excellent cook.
2. whom引导的非限制性定语从句
关系代词whom用于指人,在句中作动词宾语和介词宾语,作介词宾语时,介词可位于句末。

eg.Peter, whom you met in London, is now back in Paris.
3.whose引导的非限制性定语从句
whose是关系代词who的所有格形式,在从句中作定语。

whose通常指人,也可指动物或无生命的事物。

eg.The boy, whose hat is red, studies very hard.
4.when引导的非限制性定语从句
关系副词when在非限制性定语从句中作时间状语,指代主句中表示时间的词语。

eg.He will come here yesterday, when he will be free.
5.where引导的非限制性定语从句关系
副词where在非限制性定语从句中作地点状语,指代主句中表示地点的词语。

eg.They went back to London,where was their hometown.。

非限制定语从句

非限制定语从句

The usage of as
1.在限制性定语从句中一些固定搭配: the same …as ; such/so…as • He bought the same car as I bought last
year. • I want to buy such a book as you have. • She is such a bad woman as nobody likes. • She is so bad a woman as nobody likes.
Unit 3 Grammar and usage
Non-restrictive attributive clauses
非限制性定语从句
Explanation
1.定语从句(attributive clauses)通常由关系 代词或关系副词引出。常见的关系代词 有: which(指物), that(既可指人又可指 物), who(指人,在定语从句中作主语或 宾语), whom (指人,在定语从句中作宾 语),whose(指人或物,作定语)等。关系 副词有: when(指时间),where(指地 点),why(指原因)等。
He missed the show, which was a great pity.
Tip 1: we can use “which” to refer to the whole main clause, and we can’t use “that”.
There are fifty students in our class, twenty of whom are girls.
The earth is round,_/_a_s__ is known to all.
__A_s__ is known to all (As we all know), the earth is round. 定语从句在句首时(在主句之前)

必修三grammar非限制性定语从句

必修三grammar非限制性定语从句

6. There were dirty marks on her trousers, ____ she had wiped her hands. (2010天津)
A. where B. which C. when D. that 7. Great changes have taken place in that
Correction:
1. Many students in this school, some of wwhohmich are not overweight, are going
on diets. 2. There are 54 students in my class a, nd
ten of whom come from US.
3. I have many friends in this town, some of wwhhoimch are businessman.
4. I am doing different types of exercises, all of wthheimch are quite helpful to my health.
当先行词是地名、人名、世界上独一无 二的事物或家庭唯一成员时。
•限制性定语从句与非限制性定语从句的区别
1. I have a sister who / that works in a hospital. 我有一位在医院工作的姐姐 不只一位姐姐
2. I have a sister, who works in a hospital. 我有一位姐姐,她在医院工作。 只有一位姐姐
There are 20 students in this class, ______ are different. A.whose backgrounds B.the backgrounds of whom C.of whom the backgrounds D.the backgrounds of whose

(完整版)高中英语非限定性定语从句语法归纳

(完整版)高中英语非限定性定语从句语法归纳

非限定性定语从句是英语语法中从句的一种,是定语从句的分支之一。

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。

运用非限定性定语从句,尤其要注意其语法运用及其所表示的东西。

1 who引导的非限制性定语从句Our guide,who was a French Canadian,was an excellent cook.我们的向导,一个法裔加拿大人,擅长于烹调。

My gardener,who is very pessimistic,says that there will be no apples this year.我家的园丁非常悲观,他说今年将不结苹果。

2 whom引导的非限制性定语从句。

关系代词whom用于指人,在句中作动词宾语和介词宾语,作介词宾语时,介词可位于句末。

如:Peter, whom you met in London, is now back in Paris.彼得现在回巴黎了,你在伦敦见过他。

Mr Smith,from whom I have learned a lot,is a famous scientist.史密斯先生是一位著名的科学家,我从他那儿学了许多东西。

3 whose引导的非限制性定语从句。

whose是关系代词who的所有格形式,在从句中作定语。

whose通常指人,也可指动物或无生命的事物。

如:The boy, whose father is an engineer, studies very hard.那位小男孩学习很努力,他的父亲是位工程师。

Above the trees are the mountains, whose magnificence the river faithfully reflects on the surface.在树林的高处是山,其壮丽的景色完全映照在河面上。

The play,whose style is rigidly formal,is typical of the period.这剧本是那个时期的典型作品,风格拘谨刻板。

高中英语 定语从句04 -限制性与非限制性的定语从句

高中英语 定语从句04 -限制性与非限制性的定语从句

高中英语定语从句04 -限制性与非限制性的定语从句一.限制性定语从句形式上:不用逗号“,”与主句隔开。

意义上:是先行词不可缺少的定语,如删除,主句则失去意义或意思表达不完整。

译法上:译成先行词的定语:“...的”关系词的使用上:A.作宾语时可省略B.可用that C.可用who 代替whom二. 非限制性定语从句形式上:用逗号“,”与主句隔开。

意义上:只是对先行词的补充说明,如删除,主句仍能表达完整的意思。

译法上:通常译成主句的并列句。

关系词的使用上:A.不可省略B.不用that C.不可用who 代替whom限制性定语从句例:China is a country which has a long history. 中国是一个历史悠久的国家。

In the street I saw a man who was from Africa. 在街上我看到一个来自非洲的人。

非限制性定语从句例:His mother, who loves him very much, is strict with him. 他妈妈十分地爱他,对他要求很严格。

Last summer I visited the People’s Great Hall, in which many important meetings are held every year.去年夏天,我参观了人民大会堂,在那儿每年都要举行许多重要会议。

三.关系代词as和which 引导的定语从句1. 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。

如:He married her, as / which was natural. 他跟她结婚了,这是很自然的事。

He is honest, as / which we can see. 他很诚实,这一点我们看得出来。

2. 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。

非限制性定语从句讲解及8大考点

非限制性定语从句讲解及8大考点

非限制性定语从句非限制性定语从句也是定语从句的一种,在高中语法知识中它也是非常重要的一项的,老师们对于非限定性定语从句的讲解也是非常重视的。

因为在考试中经常会出现该从句的讲解,下面大家就跟随小编一起来了解该从句的讲解。

说到非限定性定语从句的讲解,还要分成不同的部分,首先大家要知道就得就是该从句的作用是什么。

其实它在句子中是一个独立的成分,不会受到主句的限制,把从句去掉之后,主句仍然是成立的。

这也是为什么它会叫做非限定性定语从句。

其次,大家要了解该从句的形式:非限制性定语从句与先行词以及主句之间的关系不甚紧密,因而通常要用逗号与主句分隔开。

例如:Have you seen the film Titanic, whose leading actor is world famous?你看过“泰坦尼克号”这部电影吗?它的男主演可是世界闻名的。

My friend, who has served on the International Olympic Committee all his life, is retiring next month.我有位朋友,他一辈子服务于国际奥林匹克委员会,下个月就要退休了。

在非限制性定语从句也分成不同的种类,在不同情况下,该从句的使用方法也是不一样的,在考试中经常会考察大家对于该从句不同类型的运用。

如果大家不能很好的掌握这些用法,在考试的时候就一定会丢分了,下面就是关于该从句不同类型的介绍:(1) who引导的非限制性定语从句Our guide,who was a French Canadian,was an excellent cook.我们的向导,一个法裔加拿大人,擅长于烹调。

My gardener,who is very pessimistic,says that there will be no apples this year.我家的园丁非常悲观,他说今年将不结苹果。

非限制定语从句讲解

非限制定语从句讲解

非限制定语从句讲解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,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。

以下是店铺为大家整理的非限制定语从句讲解相关内容,仅供参考,希望能够帮助大家。

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 that 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。

非限定性定语从句与限制性定语从句语法知识与练习(完整版)

非限定性定语从句与限制性定语从句语法知识与练习(完整版)

非限制性定语从句及限制性定语从句语法知识点与相关练习语法知识点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,起前后都需要用逗号隔开。

①引导非限定性定语从句的关系代词:指代对象指代人指代物主格who which,as宾格whom which,as所有格of whom, whose which, of which, whose②引导非限定性定语从句的关系副词主要有:when,where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. 在引导非限定性定语从句时,that有时相当于in which, for which或at which 。

其中,介词的选用,依据从句中的动词所需搭配的介词来选用。

例句:①Attitudes towards daydreaming are changing in much the same way that(in which) attitudes towards night dreaming have changed.人们对白日做梦的态度正在改变,这与人们对夜间做梦的看法的变化有非常相似之处。

②I like the music for the very reason that(for which) he dislike it.我出于某种原因喜欢这种音乐,而他恰恰与我相反。

③We arrived the day that(on which) they left.刚好我们到的那天他们走了。

3. as有时也可用作关系代词。

4. 在非限定性定语从句中,关系词不能用that。

区别1.限定性定语从句: 从句不能省略,如果省略整个句子意思不完整。

非限定性定语从句: 从句可以省略,如果省略整个句子意思仍然完整。

2.限定性定语从句: 先行词可以用that 引导。

高二英语非限制性定语从句

高二英语非限制性定语从句
5. Thyeeasrcshoagool,.___w_h_e_r_eI once studied, was built thirty 6. John said he’d been working in the office for an
hour, _______ was true.
which
7. _A__s_ is expected, the England team won the
football match.
8. I have many friends, some ofw_h__o____ are
businessmen.
m
9. The growing speed of a plant is influenced by a number of factors, most owf _h_i_c_h_____ are beyond
综合练习一:
1. Don’t talk about the things of _w_h_i_c_h_____ you
are not sure.
2. Is this the factory _w__h_i_c_h____ you visited the other
day? 3. Is this the factory ___w__h_e_r_e__ he worked ten years
ago?
4. The wolves hid themselves in the places w__h_i_c_h__
couldn’t be found.
5. That tree, ___w_h__o_s_e__ branches are almost bare, is
very old.

非限定定语从句用法

非限定定语从句用法

非限定定语从句用法非限定定语从句用法非限定定语从句用法大家掌握了吗?以下是店铺精心准备的非限定定语从句用法知识,大家可以参考以下是内容哦。

说到非限定性定语从句的讲解,还要分成不同的部分,首先大家要知道就得就是该从句的作用是。

其实它在句子中是一个独立的成分,不会受到主句的限制,把从句去掉之后,主句仍然是成立的。

这也是为什么它会叫做非限定性定语从句。

其次,大家要了解该从句的形式:非限制性定语从句与先行词以及主句之间的关系不甚紧密,因而通常要用逗号与主句分隔开。

例如:Have you seen the film Titanic, whose leading actor is world famous?你看过“泰坦尼克号”这部电影吗?它的男主演可是世界闻名的。

My friend, who has served on the International Olympic Committee all his life, is retiring next month.我有位朋友,他一辈子服务于国际奥林匹克委员会,下个月就要退休了。

在非限制性定语从句也分成不同的种类,在不同情况下,该从句的使用方法也是不一样的,在考试中经常会考察大家对于该从句不同类型的运用。

如果大家不能很好的掌握这些用法,在考试的时候就一定会丢分了,下面就是该从句不同类型的介绍:(1) who引导的非限制性定语从句Our guide,who was a French Canadian,was an excellent cook.我们的向导,一个法裔加拿大人,擅长于烹调。

My gardener,who is very pessimistic,says that there will be no apples this year.我家的园丁非常悲观,他说今年将不结苹果。

(2) whom引导的非限制性定语从句关系代词whom用于指人,在句中作动词宾语和介词宾语,作介词宾语时,介词可位于句末。

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非限定性定语从句是英语语法中从句的一种,是定语从句的分支之一。

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。

运用非限定性定语从句,尤其要注意其语法运用及其所表示的东西。

1 who引导的非限制性定语从句Our guide,who was a French Canadian,was an excellent cook.我们的向导,一个法裔加拿大人,擅长于烹调。

My gardener,who is very pessimistic,says that there will be no apples this year.我家的园丁非常悲观,他说今年将不结苹果。

2 whom引导的非限制性定语从句。

关系代词whom用于指人,在句中作动词宾语和介词宾语,作介词宾语时,介词可位于句末。

如:Peter, whom you met in London, is now back in Paris.彼得现在回巴黎了,你在伦敦见过他。

Mr Smith,from whom I have learned a lot,is a famous scientist.史密斯先生是一位著名的科学家,我从他那儿学了许多东西。

3 whose引导的非限制性定语从句。

whose是关系代词who的所有格形式,在从句中作定语。

whose通常指人,也可指动物或无生命的事物。

如:The boy, whose father is an engineer, studies very hard.那位小男孩学习很努力,他的父亲是位工程师。

Above the trees are the mountains, whose magnificence the river faithfully reflects on the surface.在树林的高处是山,其壮丽的景色完全映照在河面上。

The play,whose style is rigidly formal,is typical of the period.这剧本是那个时期的典型作品,风格拘谨刻板。

4 which引导的非限制性定语从句。

关系代词which在非限制性定语从句中所指代和修饰的可以是主句中的名词、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。

①which指代主句中的名词,被指代的名词包括表示物、婴儿或动物的名词、表示单数意义的集体名词以及表示职业、品格等的名词。

如:These apple trees,which I planted three years ago,have not borne any fruit.这些苹果树是我三年前栽的,还没有结过果实。

She is an artist,which I am not.她是一位艺术家,而我不是。

Water,which is a clear liquid,has many uses.水是一种清澈的液体,有许多用途。

The two policemen were completely trusted,which in fact they were.那两个警察完全受到信任,事实上,也真是如此。

②which指代主句中的形容词。

如:She was very patient towards the children,which her husband seldom was.她对孩子们很耐心,她丈夫却很少这样。

She is always careless,which we should not be.她总是马虎大意,我们可不应该这样。

③which指代主句中的某个从句。

如:He said that he had never seen her before,which was not true.他说以前从没见过她,这不是真的。

④which指代整个主句。

如:In the presence of so many people he was little tense, which was understandable.在那么多人面前他有点紧张,这是可以理解的。

He may have acute appendicitis,in which case he will have to be operated on.他可能得了急性盲肠炎,如果是这样,他就得动手术。

When deeply absorbed in work,which he often was,he would forget all about eating and sleeping.他经常聚精会神地工作,这时他会废寝忘食。

5 when引导的非限制性定语从句。

关系副词when在非限制性定语从句中作时间状语,指代主句中表示时间的词语。

如:He will put off the picnic until May 1st, when he will be free.他将把郊游推迟到5月1号,那时他将有空。

5.1 where引导的非限制性定语从句关系。

副词where在非限制性定语从句中作地点状语,指代主句中表示地点的词语。

如:They went to London,where they lived for six months.他们去了伦敦,在那儿呆了六个月的时间。

6 as引导的非限制性定语从句。

as引出非限定性定语从句时,代替整个主句,对其进行说明但通常用于像as we all know, as it is known, as is known to all, as it is, as is said above, as always mentioned above, as is usual, as is often the case, as is reported in the newspaper等句式中。

as在非限定性定语从句中作主语、表语或宾语,且引出的从句位置比较灵活,可位于句首或句末,也可置于主句中间。

通常均由逗号将其与主句隔开。

as有“正如……,就像……”之意。

如:As is known to the United States, Mark Twain is a great American writer.美国人都知道,马克·吐温是一位伟大的美国作家。

(as在从句中作主语)He forgot to bring his pen with him, as was often the case.他忘了带笔,这是常事。

(as在从句中作主语)He is absorbed in work, as he often was.他正在全神贯注地工作,他过去经常这样。

(as在从句中作表语)As we all know, the earth is round.众所周知,地球是圆的。

(as在从句中作宾语)The two brothers were satisfied with this decision,as was agreed beforehand.两兄弟对此决定都满意,这项决定在事前都已得到他们的同意。

(as在从句中作主语) Taiwan is,as you know,an inseparable part of China.你知道,台湾是中国不可分割的一部分。

(as在从句中作宾语)“介词+关系代词”引导的非限制性定语从句在介词后引导非限制性定语从句。

难:句意相同as it is known to all (that...) (as 做状语从句连词,是状语从句, 可以加that)与as is known to all (as做主语,是定语从句)与it is known to all that... (主语从句,it是形式主语)既:As is widely known, the moon is closer to the us than the sun.(定从)= Thatthe moon is closer to the us than the sun is widely known.(主从)= it is widely known thatthe moon is closer to the us than the sun.(主从)As it is known to everyone, I thought you knew about it too.(状从)[1]关系代词which有时并不代表主句中某一确定的词,而是概括整个主句的意思。

介词的选择取决于它与先行词的搭配或与从句中谓语动词的搭配。

They were short of sticks to make frames for the climbing vines,without which the yield would be halved.他们缺搭葡萄架的杆儿,没有它们产量会减少一半。

They thanked Tom,without whose support they would not have succeeded.他们很感激Tom,没有他的支持他们是不会成功的。

6.1 “名词/代词+of+which / whom”It now has 20,000 hectares of land,more than two-thirds of which are under cultivation.现在它拥有两万公顷土地,其中三分之二之多已经耕种。

Light is the fast thing in the world, the speed of which is 300000 kilometer per second.光是世界上最快的东西,它的速度是每秒30万千米。

There are 30 chairs in the small hall, most of which are new.大厅里有三十把椅子,绝大部分是新的。

The textile mill has over 8,000 workers and staff,eighty per cent of whom are women.这家纺织厂有8千多职工,女职工占百分之八十。

7 关系词①引导非限定性定语从句的关系代词:指代对象指代人指代物主格who which,as宾格Whom which,as所有格of whom, whose which, of which,whose②引导非限定性定语从句的关系副词主要有:when,where8 规则注意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。

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