as引导的定语从句及非限制性定语从句
the sun .地球，我们都知道，围着太阳转。 Tom works hard and is willing to help others, as we all know.汤母工作努力，并 且乐于助人，这一点我们都知道。
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注意：1）定语从句中的主谓一致：
1.…one of +复数名词 + 关系代词+ 复 数形式动词
2. = …..not the only one of…….
a.it b.which
c.this d.that
2.The weather turned out to be very
good , ____ was more than we could
expect.
a.what b.which c.that d.it
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3.Carol said the work would be done by
2） which 引导的从句只位于主句之后，意
为As“ 这一点”,主从句一般是因果关系 _____is known , the wehaircthh is round.
She was late again,精品_课_件____ made the
The road was too slippery,wh_i_c_h_____caused lots of accidents.
The man who has three children is my uncle.
那有三个孩子的人是我的叔叔。
She was late again, which made the teacher upset.
This is my motorbike, which was sent to me by my uncle
常见的as 引导的非限制定语从句 as we all know as is known as every knows as we (had) expected as is mentioned above
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注意：
as 引导的非限制性定语从句与which 引导 的非限制性定语从句异同：
1）都可指代整个句子，但as 从句位置灵 活，可位于句首，句中， 句尾， ”正如正 像”
She entered a good university,as _____ we had expected.
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限制性定语从句 非限制性定语从句
先行词与从句间没有 先行词与从句之间有逗号隔开 逗号隔开 先行词是名词或代词 先行词是名词，代词或前面整个
句子（一般which指代整个句子）
a．who b．which c．this d．what
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5. I bought an ancient chinese vase , _____ was very reasonable.
a. which price b. its price c. whose price d. that price
一 ：关系代词 as 引导的定语从句： 1） as 引导的限制性定语从句，一般 先行词前有such，the same 修饰， 构成 such + 名词 as…像……..之类的，像…..一
样的
the same + 名词 + as…和. …….同样的 as 可以充当主语，宾语或表语,
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1. He is not the same man as he was. 2. Such girls as he knows are good at
English . 3.We have found such materials as are
used in their factory. 2)the same + 名词 + as……像..….一样的 3) the same + 名词 +that 就…是…同一人或 This is the same bike as we物lost yesterday.
The war, when/ during which Chinese fought against Japanese , last (持续） eight years.
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1.She heard a terrible noise, _______
brought her heart into her mouth.
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The vase, whose price is a little high, is valuable.
The girl, to whom I talked just now , was the manager of that company.
The factory, where I worked , belonged to Japan.
关系代词，关系副词，不能用that 引导，一般不用 介词+关系代词引导 why 引导而用for which 代替
关系词做宾语时可省 关系词做宾语时不可省
限定先行词
对现行词起补充说明作用
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The man , who has three children, is my uncle.
那个人， 有三个孩子， 是我的叔叔。
October, ＿＿＿＿＿personally I
doubt very much.
a. it b.that
c.when d.which
4.Dorothy was always speaking highly of
her role in the play, ________,of
course , made the others unhappy.
This is the same bike that we lost yesterday.
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3) as 引导的非限制性定语从句， 位置灵活， 可位于句首，句中，句尾， as “正如，正像 “ As everyone knows ,China is a beautiful country with a long history . 正如每个人都知道，中国是一个有着悠久历史 的美丽国家。
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。
as引导方式状语从句,限制定语从句和非限制定语从句的区别是什么
as引导方式状语从句,限制定语从句和非限制定语从句的区别是什么方式状语从句通常由as。
(just) as…so…。
as if。
as though 引导。
当as引导行为方式状语从句时，意为“如同……”或“按照……的方式(样子,办法)”，这种从句通常位于主句之后。
例如，你必须像我这样拿工具，别动这些东西，我们必须按照党的指示办事。
在(just) as…so…结构中，as从句位于句首，带有比喻的含义，意思是“正如…”或“就像”，多用于正式文体。
例如，你希望人家怎样待你，你就要怎样待人，我们离不开空气，犹如鱼儿离不开水，正如打扫房屋一样，我们也要扫除我们头脑中落后的东西。
as if/though引导的方式状语从句比较容易区分，这里不做解释。
当as引导限制性定语从句时，构成“the same。
as。
”。
“such。
as。
”。
“as many (much。
few。
little)。
as。
”等结构。
as 可替代先行词，在从句中作主语、表语、宾语或状语。
例如，他不再是过去那个样子了，我从来没有听见过像他正在讲述的这种故事，这里有一瓶纯净水，你需要多少就用多少。
This watch is XXX I lost.During that time。
many young people lived in the same manner as the XXX.An as-clause。
which can modify the entire main clause or a part of it。
is a non-restrictive relative clause。
It can be placed before。
within。
or after the main clause and is usually separated from it by a comma。
As can be translated as "just as" or "like"。
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。
as引导的定语从句辨析
as引导的定语从句辨析定语从句一直是学生在学习英语时的重点和难点，而学生对as引导的定语从句与其他相似的从句更容易混淆，现就它们作一简单的归纳与辨析。
一、as引导限制性定语从句关系代词as 可以引导限制性定语从句，在从句中可作主语、宾语或表语，但as只用在“the same…as…”“such … as…”“ so…as…”和“as…as…”结构中。
例如：I’d like to use the same recorder as is used in class. （as 在从句中作主语）He is such a man as is always ready to help others.（as在从句中作主语）I am not so strong a man as I was.（as 在从句中作表语）She will marry as rich a man as she can find.（as 在从句中作宾语）辨析1. 当先行词被the same 修饰时用as 与that引导定语从句的比较as引导的定语从句表示“相似”意义，即主句与从句所讲的是同类的人或事物，而that引导的定语从句表示“同一”意义，即主句与从句所讲的是同一个人或事物。
例如：She wore the same （= the same kind of）dress as her younger sister wore. （她穿着跟她妹妹所穿的一样的连衣裙。
）She wore the same （= the very ）dress that she wore at Mary’s wedding. （她穿着她在玛丽婚礼上穿过的同一条连衣裙。
）辨析2. “such / so… as …” 与“such / so…that …” 结构的比较在“such / so… as …” 结构中，as 引导定语从句并在从句中作主语、宾语或表语，而在“such / so…that …”结构中，that 引导结果状语从句并在从句中不作任何成分。
(完整版)As引导从句归纳总结
As引导从句归纳总结一、as引导定语从句一）as引导限制性定语从句主要结构有：the same…asas…assuch…asso…as主句中出现the same, as, such, so修饰先行词，需选择as做关系代词在定语从句中做主语或宾语。
1. It’s the same person as we wanted to find yesterday .我们昨天要找的是同一个人。
2. Such girls as he knows are good at English .他所认识的女孩都擅长英语。
3. Do you have such books as we like ?你有我们喜欢那种书吗？4. She will marry as healthy a man as she can find .她将嫁给她能找到的任何一个有钱人。
5. There is so warm a house as we want to live in .这里有如此暖和的房子，我们都想住在里面。
6. He has so difficult a problem , as none of us can solve .他有如此难的一个问题，我们没有人能解决。
二）引导非限制性定语从句1. as引导非限制性定语从句，指代整个主句内容，从句可置于句首，句中或句尾1) As everyone knows ,China is a beautiful country with a long history .每个人都知道，中国是一个有着悠久历史的美丽国家。
2) The earth , as we know , moves round the sun .地球，我们都知道，围着太阳转。
3) Tom works hard and is willing to help others, as we all know.汤母工作努力，并且乐于助人，这一点我们都知道。
英语复合句中as用法详解
英语复合句中as用法详解as的用法灵活，词义繁多，特别是在复合句中更能体现其用法的多样性和灵活性，但如果同学们能正确掌握as的词性和词义，是不难掌握其用法的。
一、as用作关系代词引导定语从句1、as引导非限制性定语从句，一般不指代某个具体的名词或代词，而是代表整个主句或主句的一部分。
这种从句可放在主句之前，也可以放在主句之后，有时还可以放在主句的中间。
如：As is reported in the newspapers,talks between the two countries are making progress.正如在报纸上所报道的，两国间的谈判有所进展。
Grammar is not a set of dead rules,as has been said above.如上所说，语法不是一套死条文。
Spiders are not insects,as many people think,nor even nearly related to them.蜘蛛不是昆虫，尽管许多人都这样认为，它甚至与昆虫几乎没有联系。
2.as引导限制性定语从句，主要用于the sameas（与相同），suchas（像一样），asas（与一样）。
如：（与She knew he felt just the same as she did.她知道他的感受和她一样。
Such a man with a good temper as Mr.Li is easy to get along with.像李先生这样好脾气的人是容易相处的。
He smokes as expensive a cigarette as he can afford.他抽一种他买得起的最贵的烟。
二、as作为从属连词引导时间状语从句表示“当的时候”或“>一边一边”，强调主句的动作和从句的动作同时发生。
如：I saw him as he was getting off the bus.当他下公共汽车的时候我看见了他。
as定语从句的用法及例子
as定语从句的用法及例子
一、as引导定语从句的用法
1. as引导限定性定语从句
- 当先行词被such, the same修饰时，关系代词用as。
- 例如：
- He is such a good student as every teacher likes.（他是每个老师都喜欢的那种好学生。
在这个句子中，先行词student被such修饰，as在从句中作likes 的宾语。
）
- My hometown is no longer the same as it used to be.（我的家乡不再是过去的样子了。
先行词the same指代“the same hometown”，as在从句中作表语，表示“像……一样”的状态。
）
2. as引导非限定性定语从句
- as引导非限定性定语从句时，可放在主句之前、主句之后或主句中间，as有“正如，正像”的意思。
- 例如：
- As we all know, the earth is round.（众所周知，地球是圆的。
as引导的从句放在主句之前，as在从句中作know的宾语。
）
- The earth, as we all know, is round.（这个句子中，as引导的从句放在主句中间。
）
- The earth is round, as we all know.（as引导的从句放在主句之后。
）。
定语从句as的三种用法
定语从句as的三种用法定语从句 "as" 有以下三种用法：1. 引导限制性定语从句：这种用法中，as在从句中作主语、宾语或表语。
例如：The car, as you know, cost me a lot of money. (你知道，那辆车花了我很多钱。
)I'll take the book, as you suggested. (按照你的建议，我会拿那本书。
)The child, as is well known, needs love and care. (众所周知，那个孩子需要爱和照顾。
)2. 引导非限制性定语从句：这种用法中，as在从句中作主语、宾语或表语。
例如：My sister, as you know, is a doctor. (你知道，我姐姐是一名医生。
)The book, as I have said, is very interesting. (正如我所说的，这本书非常有趣。
)The film, as you can imagine, was very emotional. (正如你可以想象的，这部电影非常感人。
)3. 引导方式状语从句：这种用法中，as在从句中作方式状语，表示“正如”、“就像”的意思。
例如：He did it, as we had expected. (他按照我们预期的那样做了那件事。
)She spoke to the camera, as if she was addressing a crowd of people. (她对着镜头讲话，就像是在向一群人发表演讲一样。
)。
(完整版)as引导定语从句
as anybody can see
⑵ as引导非限制性定语从句，“正如， 正像”的含义
The boy has as much progress ，as we had expected. 正像我们所预料的那样，这个男孩取得 了大的进步。
（3）
1 as在非限制性定语从句中做宾语时通常 做see 、watch 、know 、say 、tell 、 remember 等词的宾语
as 引导定语从句
一、as引导限制性定语从句
先行词前通常有such、the same、as、so, 构成such as、the same...as、as…as so...as结构, 作主语,宾语和表语
Don’t trust such men as praise you to your face. 不要相信那种当面吹捧你的人。
2. Such girls as he knows are good at English . 他所认识的女孩都擅长英语。
3. Do you have such books as we like ? 你有我们喜欢那种书吗？
4. She will marry as wealthy a man as she can find . 她将嫁给她能找到的任何一个有钱人。
It was true，as everybody could know．
As has been said before， China plays an important role in the world.
2 as在非限制性定语从句中做主语时， 谓语动词通常是被动形式，如是不及 物动词，则正常使用。
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”。