as作定语从句的关系词
as 引导的定语从句
He is reading thesamebookthatI read yesterday.
他正在读我昨天读的那本书。，
such (+n.) +as…
such as…
Suchpeopleasknew Mary admired her.认识玛丽的人都钦佩她。
He is notsucha foolashe looks.他并不想看起来那样傻。
夜晚变得冷，在这一带通常如此。
Water is boiling at100°C,asis shown in the figure.如图所示，水在100°C时沸腾。
1.which即可指代整个主句又可指代主句中的一部份。
2.引导表示具体的内容
3.从句只在主句之后。
He changed his mind at the last moment,whichmade him angry.
他抽一种他买的起的最贵的香烟。
2.as与which引导的非限制定语从句的区别
as从句
例句
which从句
例句
1.as只指代整个主句。
2.引导从句时表示“正如”，没有具体的内容
3.从句的位置
很灵活
Air,asis well-known, is a gas.
众所周知，空气是气体。
The night has turned cold,asis usual around here.
他在最后一刻改变了主意，这是我很生气。
I called him by the wrong name, forwhichmistake I apologize.
我叫错了他的名字，对此我表示道歉。
3.as引导的非限制性定语从句常常成为一些惯用句型。
as引导的定语从句
as引导的定语从句
1. as soon as（一…就…）：引导一个时间性定语从句。
例如：I will call you as soon as I finish my work.（我一做完工作就给你打电话。
）2. as long as（只要）：引导一个条件性定语从句。
例如：You can borrow my car as long as you promise to drive carefully.（只要你答应小心驾驶，你可以借用我的车。
）
3. as far as（就…而言，就…而论）：引导一个程度或范围的定语从句。
例如：As far as I know, he is still living in New York.（就我所知，他仍然住在纽约。
）
4. as well as（和…一样；不仅…而且）：引导一个并列关系的定语从句。
例如：He speaks French as well as English.（他不仅会说英语，还会说法语。
）
5. as if / as though（好像；仿佛）：引导一个比拟关系的定语从句。
例如：She looks as if she hasn't slept for days.（她看上去好像已经好几天没有睡觉了。
）。
as用在定语从句中的用法
as用在定语从句中的用法一、AS用在定语从句中的基本用法与关系代词用法区别在英语中，定语从句通常由关系词引导。
这些关系词包括that、who、whom、whose和which等。
然而，在某些情况下，我们可以使用介词as来引导定语从句，表示“...的”。
本文将介绍AS在定语从句中的基本用法，并与其他关系代词进行比较。
1. AS作为关系代词引导定语从句AS在定语从句中可以指人或物。
当AS引导的定语从句修饰人时，作为主格或宾格，它可以替代一个具体名词或指示形容词短语。
例如：- She works as a teacher, which I admire.（她是一名教师，我很钦佩）- My neighbor's son, as I previously mentioned, is a doctor.（我之前提到过的邻居儿子是医生）2. AS和WHEN对时间进行修饰除了指人之外，AS还可用于修饰时间的定语从句。
它可以替代表示具体时刻或事件的名词。
例如：- September 4th, as you might remember, was our wedding anniversary.（9月4日是我们的结婚纪念日，你可能记得）- He always wakes up early, as his alarm clock rings.（当闹钟响起时，他总是醒得很早）3. AS和THAT的区别AS所引导的定语从句与由THAT引导的定语从句在用法上有所不同。
AS常用于对一个已知事实或情况进行补充说明，而THAT更常用于简明地陈述或描述事实。
例如：- He referred to the book as a valuable resource.（他把这本书称为宝贵的资源）- The fact that he won the award surprised everyone.（他获奖的事实让所有人都感到惊讶）二、AS用在定语从句中的扩展应用除了上述基本用法之外，AS还有一些特殊的扩展应用，我们将在以下几个方面进行讨论。
as 在定语从句中的用法
as 在定语从句中的用法在定语从句中，"as" 可以作为关系代词或关系副词使用。
1. "as" 作为关系代词：当"as" 作为关系代词时，它引导一个非限制性定语从句，用来修饰前面的名词，并且在从句中起到主语的作用。
例如：- He works as an engineer, as his father did. （他做工程师，就像他父亲一样。
）在这个例子中，"as" 引导的定语从句修饰名词"engineer"，并且在从句中作为主语。
进一步解释这个例子，可以将定语从句分解为两个简单句子：- He works as an engineer.- His father did (work as an engineer).2. "as" 作为关系副词：当"as" 作为关系副词时，它引导一个限制性定语从句，用来修饰前面的名词，并且在从句中起到比较程度、原因、方式、时间等方面的作用。
比较程度：- She is not as tall as her sister. （她不如她姐姐高。
）在这个例子中，"as" 引导的定语从句修饰名词"tall"，表示比较程度。
原因：- I couldn't sleep last night, as I drank too much coffee. （我昨晚睡不着觉，因为我喝了太多咖啡。
）在这个例子中，"as" 引导的定语从句修饰名词"I"，表示原因。
方式：- The teacher explained the math problem as clearly as possible.（老师尽可能清楚地解释了这道数学题。
）在这个例子中，"as" 引导的定语从句修饰名词"clearly"，表示方式。
定语从句中as 的用法及例句
定语从句中as 的用法及例句定语从句中"as"的用法及例句一、引言在英语语法中，定语从句是一种常用的修饰手段，它可以为名词或代词添加更多的描述和限定。
而其中一个常见的连接词就是"as"。
本文将详细介绍定语从句中"as"的用法，并提供一些例句来帮助读者更好地理解和运用。
二、as作为关系副词引导定语从句1. "as"在定语从句中起到限制性关系副词的作用。
它引导了一个对主句所描述事物进一步解释和说明的从句。
例如：- The hotel, as I mentioned before, is located in the city center.（正如我之前提到过的，这家酒店位于市中心。
）- I love the movie "The Shawshank Redemption", as many people do.（我喜欢电影《肖申克的救赎》，像很多人一样。
）2. 在类似比较级、数词等结构中，也可以使用"as...as..."进行比较。
例如：- He is not as tall as his brother.（他没有他哥哥高。
）- As many as ten students were absent from today's class.（多达十名学生今天旷课了。
）三、根据先行词不同类型的例句下面将分别给出"as"引导定语从句的几种情况以及相应的例句。
1. "as"引导说明职业、身份或特征的定语从句。
例如：- Mr. Smith, as our English teacher, is always patient and helpful.（作为我们的英语老师，史密斯先生总是耐心和乐于助人的。
）- Mary, as a doctor, has saved many lives in her career.（作为一名医生，玛丽在她的职业生涯中挽救了许多生命。
定语从句中as的用法
定语从句中as的用法定语从句中as的用法在定语从句中，as有样的作用呢?下面是店铺为大家带来的定语从句中as的用法!1. 准关系代词as引导限制定语从句，用于以下3个结构中，as在从句中作主语、宾语或表语：a. so / such…asSuch people as were mentioned by him were honest. (as作主语)I’ve never seen such a clever man as he is. (as作表语)Last term our maths teacher set so difficult an (= such a difficult) examination problem as none of us worked out.b. the same…asModern statemen are often faced with the same problem as defeated the ancient Romans. (as 作宾语)I like the same book as you do. (as 作宾语)c. as…asAs many children as came were given some cakes. (as 作主语) He is as diligent a man as ever lived. (as 作主语)补充：a. such…as 与such…that的区别such…as 引导定语从句;such…that引导结果状语从句。
They talked in such simple English as children could understand.他们用孩子们能听懂的简单的交谈。
They talked in such simple English that children could understand it.他们用十分简单的英语交谈，连孩子们都能听懂。
在定语从句中as的用法及例句
在定语从句中as的用法及例句一、as作为关系代词的用法在定语从句中，as可以充当关系代词，引导一个完整的定语从句。
下面将详细介绍as作为关系代词的用法以及一些例句。
1. 提示特征身份或职业在定语从句中，as常用来指示被修饰名词的身份或职业。
例如：The man, as a doctor, is very skilled in performing surgery.（这位男子作为一名医生，在进行手术方面非常熟练。
）2. 表示成分所属关系as也可以用来表示成分之间的所属关系。
例如：She works as a teacher at the local school.（她在当地学校担任教师。
）3. 引出原因或方式在定语从句中，as还可以引出原因或方式。
例如：He lost his job, as he arrived late for work every day.（他迟到了每天上班，所以失去了工作机会。
）4. 提供补充信息除了前述功能外，as还可以提供更多描述性信息。
例如：I bought the same watch as him.（我买了和他一样的手表。
）二、例句说明as作为关系代词的用法1. The woman standing over there, as a nurse, is known for her compassion and dedication in caring for patients.这句话中的as引导的定语从句解释了这位女子站在那儿的原因，即她作为一名护士以她对患者的同情心和奉献精神而闻名。
2. She works at the library as a librarian, helping people find books and promoting literacy.这个例句中，as用来指示她的职业，并说明了她在图书馆担任图书管理员的工作，帮助人们找到书籍并促进读写能力。
定语从句as例句
定语从句as例句定语从句是一种常见的语法结构，通过使用关系代词来引导一个从句，对先行词进行修饰和限制。
在定语从句中，as是一个常用的关系代词，可以引导限制性定语从句和非限制性定语从句。
1. 限制性定语从句限制性定语从句对先行词进行修饰和限制，如果去掉定语从句，主句的意思会不完整或不明确。
例如：I have a car, which is red.（限制性定语从句，修饰先行词car）As a student, he has many duties to fulfill.（限制性定语从句，修饰先行词student）2. 非限制性定语从句非限制性定语从句对先行词进行补充说明，即使去掉定语从句，主句的意思仍然完整明确。
例如：John, who is a diligent student, passed the exam.（非限制性定语从句，补充说明先行词John）The book, which was written by an expert, is popular.（非限制性定语从句，补充说明先行词book）3. 介词 + 关系代词在某些情况下，我们可能会在介词后面使用as作为关系代词。
例如：The book, for which he paid $10, is worth reading.（介词 + 关系代词，as代替先行词book）He is a person, to whom we can turn for help.（介词 + 关系代词，as 代替先行词person）4. 省略引导词的情况在定语从句中，有时可以省略引导词as，尤其是当定语从句中有固定词组或短语时。
例如：He is a kind-hearted man (as) everyone knows.（省略引导词as）The book (as) you recommended is very interesting.（省略引导词as）5. 引导词as的特殊用法除了以上提到的用法外，as还可以用于一些特殊用法中，例如固定词组“as it is”表示“照现状”、“按照原样”，以及固定词组“as it were”表示“仿佛”、“似乎”。
定语从句as的用法
as 引导定于从句：1、as用作关系代词和关系副词引导限定性定语从句，并在从句中做主语、表语和状语，构成the same ...as, such...as等结构。
Eg: I have got into the same trouble as you.2、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：（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) .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。
Eg: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在定语从句中的用法
关系代词as的用法
• as作关系代词时，引导定语从句在从句中充当主 语、宾语、介词宾语或表语，既可以指人，也可 以指物。 • （1）as引导定语从句时，有如下结构：“the same …as”，“such …as”， “as…as” “so many （much, few, little）…as”，译作 “像……一样的人（或物）”。例如： • This is such an easy novel as you can read. 这本小说很容易，你能读得懂。 • They have never read so many books as I read last year. 他们从来都没有读过像我去年读过的那些书。
• （2）as单独引导定语从句时，修饰整个主句或 主句中的一部分，可以放在句首、句中或句末。 当as在从句中作主语时，从句的谓语通常是被动 语态或系表结构；as在从句中作宾语时，从句的 谓语常用“情态动词＋动词原形”构成。常见的 结构如下： • as is known to all 众所周知 • as has been said above 如上所述 • as was expected 正如预料的那样 • as has been pointed out 正如指出的那样 • as we all can see （know, hear） known to everybody, the moon travels round the earth once every month. 众所 周知，月球每个月绕地球转一周。
定语从句中as的用法总结
定语从句中as的用法总结定语从句中的as可以作为关系代词或连接词。
1.作为关系代词：-在非限制性定语从句中，用于表示身份、职业、国籍等方面的同一性或相似性关系。
例如：She works as a teacher, as her mother does.（她像她妈妈一样，是个老师。
）-在限制性定语从句中，用于指代整个主句的内容，相当于“which”或“that”。
例如：The hotel, as I mentioned earlier, is located in the city center.（就像我之前提到的，那家酒店位于市中心。
）2.作为连接词：-表示原因或理由，相当于“because”、“since”或“for”。
例如：He couldn't come to the party, as he was busy with work.（他因为工作忙，所以不能来参加派对。
）-表示方式或方式，相当于“in the way that”或“as if”。
例如：He did the work as instructed.（他按照要求完成了工作。
）-表示“正如……一样”，相当于“just as”。
例如：As many people say, laughter is the best medicine.（就像很多人说的那样，笑是最好的药。
）另外，形容词、副词或介词短语也可以用as来引导定语从句：-形容词：such as、same as等（表示“像……这样的”）例如：He likes fruits such as apples and oranges.（他喜欢诸如苹果和橙子之类的水果。
）-副词：as soon as、as far as等（表示“尽早”、“就……来说”）例如：I will let you know as soon as I receive the package.（我一收到包裹就通知你。
定语从句中关系代词as的用法
定语从句中关系代词as的用法定语从句中关系代词as的用法定语从句是指一类由关系词引导的从句,因为这类从句的句法功能多是做定语，所以曾被称为定语从句，这类从句除了可以做定语之外，还可以充当状语等其他成分，所以现代语言学多使用“关系从句”这一术语。
下面为大家带来了定语从句中关系代词as的用法，欢迎大家参考！一、AS引导限制性定语从句。
AS引导限制性定语从句时,通常和such,the same,as(so)等连用,构成such...as/such as,the same...as/the same as,as(so)...as等结构,在从句中可作主语,宾语和表语。
1.such...as/such as意为“...的那种...,像那样的”，such...as/suchas引导限制性定语从句时,既可指人,也可指物。
such用于名词之前时,具有形容词性质;such单独使用(即后面不接名词)时,具有代词性质。
Don’t trust such men as prais e you to your face.(as作主语) 不要相信那种当面吹捧你的人。
You should read only such books as you can understand without much difficulty.(as作宾语)你应当只读那些你读起来不太难懂的书。
Associate with such as will improve your manners.(as作主语) 要和能改善你的言行的那种人结交。
2.the same...as/the same as意为“与...同样的”,和such一样,the same既有形容词作用,又有代词性质。
We have arrived at the same conclusoin as they have.(as作宾语)我们已得出和他们同样的结论。
比较:the same...as和the same...that不同,前者是“同那一个相似”,后者是“正是那一个”。
as引导的定语从句
as引导的定语从句关系代词as在从句中即可指认也可指物，可做主语、宾语、表语。
常用语一下几种情况：1．the same+名词+as....：such+名词+as....意为“和...一样”This is the same book as I bought yesterday.Tom is not the same man as he was.These houses are sold at such a high prize as people expected.He is such a kind teacher as students like.2．先行词为整个句子，常用逗号分开，可置于句首、句中或句末.As is well known to us all, we should be equal before laws.Xu beihong , as we all know, was a great painter.She was late for school again , as we expected.My grandfather is fond of talking about the old days, as is often the case with old people.Just as Edison put it，genius is 99 percent sweet and 1 percent inspiration．As you can imagine, getting burnt can lead to very serious injuries.常见的习惯用语：as you see/know, ......as can be seen,...as everyone knows,.... as the old saying goes,.... as is often the case,...as we expected , .....as was expected , ..... as has been said before,....as was mentioned above, .....as sb put it,...as was reported in the newspaper,... as you can imagine,...as the study suggests,...填空练习1.She opposed the plan, _______we expected.2．_______is said above, the new technology will be of great use.3．We，_______ was planned, got there before eight.4．I have got into the same trouble _____ he has.5．Journey to the west is such an interesting book_____ all children want to read.6．______ he often puts it, university education determines one’s future.7．_______the study suggests, hugs , _______ can help us get away from negative feelings , are of great benefit for us .1。
as在定语从句中的用法
as在定语从句中是关系代词，可做句子成分。
但在上述两个句子中，as只是在引导定语从句而已，不作句子成分。
as 引导非限制性定语从句，可放在主句之前，或者主句之后，甚至可以切割一个主句；which 引导的非限制性定语从句只能放在主句之后。
另外，as有“正如……，正像……”的意思(1) As is known to all, China is a developing country.(2) He is from the south, as we can see from his accent.(3) John, as you know, is a famous writer.(4) He has been to Paris more than several times, which I don’t believe.================================As 的用法例1. the same… as；such…as 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 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。
一、“as / which” 特殊定语从句的先行成分1. 形容词或形容词短语作先行成分, 具有形容词意义的介词短语也可以充当先行成分，如：My grandmother’s house was always of great importance to me, as my own is.在一定的语言环境里，有些名词可以具有形容词的性质。
as 的定语从句
as 的定语从句
“as”在英语中可以引导定语从句，这种定语从句称为“as”定语从句。
通常，“as”在定语从句中用作关系代词，代替先行词，在定语从句中充当成分。
“as”引导的定语从句通常置于句首，并且有以下几种用法：
1.限制性定语从句：这种用法中，“as”用于限制先行词，以表明它具有特
定的属性或特征。
例如：
2.As an excellent swimmer，he was the first to reach the sinking boat.
3.（作为一名优秀的游泳运动员，他是第一个到达正在下沉的船只的人。
）
4.在这个例子中，“as”引导的定语从句修饰了“he”，表明他是一个优秀
的游泳运动员，因此能够第一个到达正在下沉的船只。
5.非限制性定语从句：这种用法中，“as”引导的定语从句并不限制先行词，
而是对先行词进行补充说明或提供额外信息。
例如：
6.He has published several books，as is well known.
7.（众所周知，他已经出版了几本书。
）
8.在这个例子中，“as”引导的定语从句提供了额外的信息，即“众所周
知”，来补充说明前面的主句内容。
需要注意的是，“as”引导的定语从句有时也可以置于句中或句末，但这种用法相对较少见。
1。
自用定语从句系列之2关系代词as的用法
பைடு நூலகம்
e.g. She has been late again, as was expected. Tom has made great progress, which made us happy.
5. as在从句中作主语时，后面常接行为动词的被动语态， 如be known，be said，be reported等，如从句中行 为动词是主动语态，一般要用which作主语。
6.如果主句的内容对从句内容起着消极作用，或者说导致 的结果，则用which.
a. He cheated his friend of much money, which was very disgraceful.
b. He came back late, which made his mother worried.
as与which引导的定语从句
He failed to the exam, as (=which) is natural. Grammar is not a dead rule, which (=as) I have said before
As we all know, his parents were killed in the war. As we all know, the earth is round.
Exercises（1）:
1.Such teachers _a_s___ Tom think Jane is bright.
2.I’ll buy
bike___a_s__ I lost yesterday.
3.Catch the thief,for he is riding the same
定语从句关系代词as
定语从句关系代词as下面是店铺整理的定语从句关系代词as，欢迎阅读。
as引导限制性定语从句例题：I had never heard such an interesting story ______ you told me yesterday.A. thatB. whichC. asD. that/which有些同学可能选择D，这说明有关定语从句的基本知识学得不错，但知识还是有漏洞。
要记住：如果先行词被such, the same, so+形容词+a/an，as+形容词+a/an修饰时，这时关系词我们要用as。
此时，as同that, who, which, whom一样，是关系代词，代指the same, so, such和as引导的短语，常译作“正如，像”，在定语从句中通常作主语、宾语和表语。
A. 先行词被such修饰时，构成“such…as…”。
It’s such a heavy stone as nobody c an move.那是一块重得没人能移得动的石头。
(as作宾语)Don’t trust such men as praise you to your face.不要相信那种当面吹捧你的人。
(as作主语)B. 先行词被the same修饰时，构成“the same…as…”。
We have arrived at the same conclusion as they have.我们已得出和他们同样的结论。
(as作主语)This is the same watch as was worn by John.这与约翰戴的那块表一样。
(as作主语)C. 在“as…as…” 句型中，第一个as后面跟名词时。
它可以看作是“as+形容词+as” 的.一种变化形式。
He is as good as his brother. 他和他弟弟一样好。
这句话还可以表达为：He is as good a boy as his brother.It’s as pleasant a film as I have ever seen. (as作宾语)这是一部和我以往看的同样好的电影。
as引导的定语从句
as在定语从句中是关系代词，可做句子成分。
但在上述两个句子中，as只是在引导定语从句而已，不作句子成分。
as 引导非限制性定语从句，可放在主句之前，或者主句之后，甚至可以切割一个主句；which 引导的非限制性定语从句只能放在主句之后。
另外，as有“正如……，正像……”的意思(1) As is known to all, China is a developing country.(2) He is from the south, as we can see from his accent.(3) John, as you know, is a famous writer.(4) He has been to Paris more than several times, which I don’t believe.================================As 的用法例1. the same… as；such…as 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 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。
一、“as / which” 特殊定语从句的先行成分1. 形容词或形容词短语作先行成分, 具有形容词意义的介词短语也可以充当先行成分，如：My grandmother’s house was always of great importance to me, as my own is.在一定的语言环境里，有些名词可以具有形容词的性质。