定语从句 关系代词as用法1
as在定语从句中的用法
关系代词as 引导的定语从句1、as 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 was natural.他跟她结婚了,这是很自然的事。
He is honest, as 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。
另外,as 常常有“正如、正像”的含义。
如:As is known to all, China is a developing country.众所周知,中国是发展中国家。
He is from the south, as we can know from his accent.他是南方人,从他的口音我们就可以知道。
John, as you know, is a famous writer.正如你所知,约翰是个著名作家。
3、当先行词受such, the same 修饰时,关系词常用as。
如:I’ve never heard such stories as he tells.我从未听过象他讲的这样的故事。
He is not such a fool as he looks.他可不象他看上去的那样傻。
This is the same dictionary as I lost last week.这部词典跟我上星期丢失的一样。
注意:当先行词受the same 修饰时,偶尔也用 that引导定语从句,但与as引导的定语从句意思有区别。
如:She wore the same dress that she wore at Mary's wedding.她穿着她在玛丽婚礼上穿过的那个同一条连衣裙。
She wore the same dress as her younger sister wore.她穿就像着跟她妹妹所穿的一样的连衣裙。
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。
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。
(完整版)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。
英语语法:关系代词as在定语从句中的运用
【导语】定语从句就是在整个句⼦中充当定语的句⼦修饰名词或代词,被修饰的名词词组或代词即先⾏词。
定语从句通常出现在先⾏词之后,由关系词(关系代词或关系副词)引出,⼩编在这⾥特意为⼤家整理了关系代词as的⽤法,⼀起来看⼀下吧!⼀、引导限制性定语从句⽤在 such, same, as 等之后,引导限制性定语从句。
如:I live in the same place as Tom does. 我和汤姆住在同处。
He’s not such a fool as he looks. 他并不像看上去的那样愚蠢。
He smokes as expensive a cigarette as he can afford. 他抽⼀种他买得起的最贵的烟。
⼆、引导⾮限制性定语从句单独⽤作关系代词,引导⾮限制性定语从句,可放在主句之前、之后或中间,且主从句之间⼀般要⽤逗号隔开。
如:As was expected, he succeeded at last. 正如我们所料,他终于成功了。
I had coffee after dinner, as is my usual practice. 我饭后喝咖啡,这是我的习惯。
Freddie, as might be expected, was attending the conference. 弗雷迪在参加会议,这是可以预料到的。
三、as与which的⽤法区别①引导限制性定语从句的区别:as⽤作关系代词引导限制性定语从句时,它通常只⽤于 such, same, as 等之后,⽽which ⽤作关系代词引导限制性定语从句时,则⽤于除 such, same, as 之外的其他结构。
②引导⾮限制性定语从句的区别:which引导⾮限制性定语从句时,通常只能位于主句后,⽽as引导的⾮限制性定语从句位于主句之前、之后或中间。
根据从句谓语动词的特点来看,as在定语从句中作主语时,从句谓语通常要有be或别的系动词,但which不受此限制。
关系代词as的经典用法
关系代词as经典用法关系代词as既可以引导限制性定语从句,也可以引导非限制性定语从句,as在从句中作主语、宾语或表语。
引导限制性定语从句常用于下列句式:其中关系代词as在从句中担当主语、宾语或表语。
We have found such materials as are used in their factory.我们已经找到了像他们工厂里用那种材料。
(as作主语)These houses are sold at such a low price as people expected.(as作宾语)这些房子以人们期望低价出售。
He is not the same man as he was.他和过去不同了。
(as作表语)4.关系代词as,which区别(1)as引导非限制性定语从句,既可在主句前,又可在主句后,有时还可插入主句中,而which 引导非限制性定语从句只能置于主句之后。
相同是两者都可替代主句整个内容,而不是主句中某一个词。
The weather turned out to be very good,which was more than we could expect. (2009·山东高考)Whenever I met her,was fairly often,she greeted me with a sweet smile.A.whoB.whichC.whenD.that选句意:不管我何时遇见她,她都用甜甜微笑迎接我,这是常事儿。
which引导非限制性定语从句,指代前面句子。
故选B。
(2)当非限制性定语从句放在主句前面时,只能用as。
As is known to everybody,the moon travels round the earth once every month.=The moon travels round the earth once every month,as/which is known to everybody.=It is known to everybody that the moon travels round the earth once every month.=What is known to everybody is that the moon travels round the earth once every month.后两句属名词性从句范畴。
as引导定语从句的用法
as引导定语从句的用法as在定语从句中是十分常见的,那么as引导定语从句的.用法又是什么呢?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)正如大家看到的(知道的、听到的)那样。
例如:As is 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。
【as引导定语从句的用法】。
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 用法
As 用法••••••••••一、As 用作关系代词1. As 单独用作关系代词。
As 单独用作关系代词时,常用于引导非限制性定语从句,代表主句所表达的概念或主句中某个词所表达的概念。
且As 引导的从句在句中的位置较为灵活,可位于主句之后,也可位于主句之前,有时还可插入主句当中。
As 在从句中可充当主语、宾语或表语。
例如:This elephant is like a snake, as anybody can see.As we all know, he is good at English.As is known to all, he is a famous writer.John, as you know, writes plays.2. As 与其它词搭配用作关系代词。
As 常与the same, such, so, as 等搭配, 构成the same...as, such...as, so...as, as...as 等句型,引导限制性定语从句。
例如:I have the same idea as you (have).Such men as he (is) are rare.They do the same work as I (do).Here is so big a stone as no man can lift.••••注1:As 从句中的be, do, have 等动词常省略, •但如果主句与从句中的动词时态不同或两个动词的形式不同, 这类词就不宜省略。
例如:They are doing the same work as I did last year.They do the same work as she does.••••注2:在the same...as 结构中, same 有两层意思:一是特指的同一个,即前面提到的那一个,而非另一个,其二是指与另一物在某个方面(如外形、性质、内容或数量等)一样,或没有区别,或与过去比没有变化。
关系代词as的用法总结
关系代词as的用法1.用于引导限制性定语从句,主要与such,as, the same连用,在多句中充当主语、宾语、表语as若做准关系代词,只用于下列三个结构中:(准关系代词:既像连接词又像关系词的词)such+n.+ as像……这种的,像……那样的the same+n.+ as 和……相同的as +adj.+n.+as和……一样的……These houses are sold at such a low price as people expected.这些房子以人们期望的这样低的价格出售了。
(as在从句中作宾语)We have found such materials as are used in their factory.我们已经找到了像他们工厂里用的这种材料。
(as在从句中作主语)He is not the same man as he was. 他和过去不同了。
(as在从句中作表语)He smokes as expensive a cigarette as he can afford.他抽一种他买得起的最贵的烟。
(as在从句中作宾语)2.用于引导非限制性定语从句,可位于主句之前或之后,有时也可插在主句中间.as指代整个主句的内容,as表示“正如”。
As you know, she is a stubborn girl, and I can't persuade her to change her mind.你知道,她是一个倔强的女孩,我不能说服她改变主意。
He returned before nine o'clock,as we had expected.正如我们所料,他9点以前回来了。
【拓展】as和which都可以引导非限制性定语从句,并且都指代整个主句的内容,但二者有着明显的区别。
(1)as引导的非限制性定语从句可以放在主句之前、之后或插于主句之中,而which引导的非限制性定语从句只能放在主句之后。
as在定语从句的用法
as在定语从句的用法as 在定语从句的用法英语是一种西日耳曼语支,最早被中世纪的英国使用,并因其广阔的殖民地而成为世界使用面积最广的语言。
下面是店铺为大家整理的as 在定语从句的用法,欢迎阅读与收藏。
as 在定语从句的用法1一、as引导定语从句与其它词连用A.用于the same...as...结构中This is the same sickle as I lost yesterday.这把镰刀和我昨天丢的那把一样。
We drove out of the town by the same road as we had entered by.我们沿着进城的同一道路开车出城。
This is the same material as is used in building the bridge.这和建那座桥所用的材料一样。
注意:在这一结构中,as有时可以由that代替。
例如:I live in the same district as /that he lives in.我和他住在同一区。
但两者亦有区别:1.当定语从句省略谓语部分时,要用as。
例如:She uses the same scent as you(do)/that you do.她用的香水和你的一样。
This book of his is the same as yours.他的这本书和你的那本一样。
2.在容易引起歧义时,慎用as和that。
例如:This is the same knife as I lost last week.(一般理解为:这把刀和我上周丢的那把相似。
也可理解为:这是我上周丢的那把刀。
)This is the same knife that I lost last week.这是我上周丢的那把刀。
3.that在现代英语中可作关系副词,而as则不可。
例如:I live in the same district that he lives.(不可用as。
定语从句as 的用法
定语从句as 的用法
as的用法
(1)as多和such,the samesoas构成such...asthe same...asso...as和as...as结构可以代替先行词是人或物的名词。
注:在the same...as结构中,as也可以用that代替,但是有时句意不一样。
例:This is the same book as I read last week.这和我上周读的那本书是一样的。
This is the same book that I read last week. 这就是我上周读的那本书。
(有强调的意味)但如果先行词有抽象的概念则没有不同。
She told me the same story as/that she had told you.
(2)在非限制性定语从句中,as作为关系代词可以代替前面的主句。
as引导的从句位置比较灵活,可以放句首,句中,句尾。
意为”(正)如......一样,像......一样“
例:As shown in the figure the material is elastic.
(3)as引导从句时,有”为人所熟知的,显然“的含义,which则没有这种含义。
as引导的从句往往表示一种附加说明,而which引导的从句则为较为重要的评说。
例:She usually takes forty winks after lunch as is her habit.她午饭后小睡一会,显然这是她的习惯。
(4)as后若为Is,was+过去分词构成的被动语态,is 或 was可省,而which不可以。
定语从句中as的用法总结
定语从句中as的用法总结一、引言定语从句是英语中常见的修饰名词的结构之一,而其中as作为关系副词在定语从句中扮演着重要的角色。
本文将总结定语从句中as的用法,并举例说明其在不同情境下的具体应用。
二、as引导非限制性定语从句当as引导非限制性定语从句时,其作用相当于副词“同时”或“正如”。
这种情况下,as后面的主谓结构与主句无关,仅起补充说明或解释的作用。
例如:1. As we all know, English is widely spoken in many countries.众所周知,英语在许多国家都被广泛使用。
2. She worked hard, as was expected.她像预期的那样努力工作。
三、as引导限制性定语从句当as引导限制性定语从句时,其作用相当于关系代词that/which,并用于修饰先行词。
此时,as可以指示人或物,并且在定语从句中可担任多种功能。
以下为几种常见用法:1. as指示人:a) 在表示职业、身份、能力等方面时。
She works as a teacher.她以教师身份工作。
He is not as wise as he thinks.他并不像他自以为的那样聪明。
b) 在表示人的补足语时。
I chose her as my partner.我选择了她作为我的搭档。
He was not recognized as a great artist until many years after his death.直到他去世多年后,他才被公认为伟大的艺术家。
2. as指示物:a) 在表示用途、功能等方面时。
Please pass me the book, which serves as a dictionary.请把那本书给我,它同时也是一本词典。
b) 在表示性质、特征等方面时。
He was wearing a shirt such as you usually wear on weekends.他穿着一件你通常周末穿的那种衬衫。
定语从句as的用法
定语从句as的用法定语从句as的用法近几年高考试卷中有关as一词的题目出现过很多次,其中as或是最佳选项,接下来要给大家分享的是定语从句as的用法,欢迎大家的借鉴阅读!定语从句as的用法一、用作连词的as1. 引导时间状语从句,表示“当……的时候”,其用法与when和while类似。
例如:As a child (When he was a child), she was sent to six different schools.此用法中as多表示从句与主句动作同时进行,意为“一边……一边……”,一般不与状态动词连用。
例如:She sang songs as she did her homework.as 还可以表示一动作紧接着另一动作发生,说明另一动作的结果,有“随着……”的含义。
例如:As time went by, we found he was an honest man./As he grew older, he lost interest in everything except gardening.例1 It wasn’t until nearly a month later________ I received the manager’s reply.A. sinceB. whenC. asD. that解析:本题的as中与when一起作为干扰项,容易使考生往时间状语从句上思考,事实上本题是强调句,正确选项是D。
2. 引导原因状语从句,表示“由于,因为”,相当于because, 但通常置于句首。
例如: As he is a qualified doctor, I trust his advice on medical matters.例2 _____ modeling business is by no means easy to get into, the good model will always be in demand.A. WhileB. SinceC. AsD. If解析:本题中as干扰性很强,很多考生误以为是原因状语从句,但仔细分析不难发现正确答案应是A(while表示“只要”)。
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。
as的六种用法
as的六种用法As六种用法是:as做关系代词,引导定语从句;as做介词,意思是“作为”;as做连词,引导时间状语从句;as做连词,引导原因状语从句;as做连词,引导让步状语从句;as做连词,固定搭配as……as。
1.跟...一样地,同样地。
例如:I'm as tall as him 我和他一样高。
2.如同;例如。
例如:There are lots of famous buildings as the Eiffel Tower and the Arch of Triumph.这里有许多著名建筑如埃菲尔铁塔和凯旋门。
1.作为,以...的身份例如:He works as a tour guide.他作为导游工作。
2.当作例如:She is a famous person as a actress.作为一个女演员,她很出名3.像;如同例如:The old woman was dressed as a young lady.这位老妇人打扮得像一位年轻人。
1.像...一样;依照;像例如:You ought to do as Paul tells you.你应按照保罗吩咐的做。
2.当...时例如:As she was leaving the room she remembered that book.她离开房间时想起了那本书。
3.随着例如:As the sun rose the fog dispersed.太阳一出来,雾随之消失。
4.因为例如:We didn't know what to do as we were just visiting there.我们不知道该怎么办,因为当时我们仅仅在那里作访问。
5.虽然例如:Tired as he was, he stayed up late. 他虽然疲倦,可仍然很晚才睡。
6.尽管例如:Try as she might,Sue couldn't get the door open.尽管想尽一切办法,苏还是不能打开那扇门1.与such,the same,as等连用,引导关系从句与...相同的事物或人例如:He has earned as much money as I have.他赚的钱和我赚的一样多。
关系代词as的用法
关系代词as的用法关系代词“as”的用法引言:关系代词是语法中一类重要的词性,它连接并引导一个从句与主句之间的关系。
其中,关系代词“as”在句子中起着重要的作用。
本文将一步一步回答关系代词“as”的用法,旨在帮助读者更好地理解和使用这一关键词。
一、作为连词的用法1. 作为连词,as 可以引导一个时间从句。
例如:As I was walking home, I saw a shooting star.(当我走回家的时候,我看到了一个流星。
)2. 作为连词,as 可以引导一个方式从句。
例如:She danced gracefully, as if she were floating on air.(她优雅地跳舞,仿佛漂浮在空中。
)3. 作为连词,as 可以引导一个原因从句。
例如:As he was feeling tired, he decided to take a nap.(因为他感到累了,他决定小睡一会。
)4. 当主句和从句的主语一致时,也可以使用as 连词。
例如:As a teacher, I understand the challenges of the education system.(作为一名教师,我了解教育系统的挑战。
)二、作为关系代词的用法1. 关系代词as 可以引导一个限制性定语从句。
例如:The book, as I mentioned before, is a great source of information.(正如我之前提到的,这本书是一个很好的信息来源。
)2. 关系代词as 也可以引导一个非限制性定语从句。
例如:Mary loves reading, as many book lovers do.(玛丽喜欢阅读,就像许多书迷一样。
)3. 关系代词as 也可以引导一个表语从句。
例如:He acted as if he were the boss.(他表现得好像他是老板一样。
定语从句中关系代词as
定语从句中关系代词as定语从句中关系代词as定语从句中关系代词as怎么用?以下是店铺整理的相关用法,欢迎阅读。
as作为准关系代词出现在the same ... as, such ... as, 和as ... as 等结构中。
这时, as前面通常要有名词;as后面的从句意义上不像是通常的定语从句;as需要在从句中充当一定的句子成分。
1. the same ... as1) as在从句中作主语She is the same person as came here last Sunday. 她就是上星期天来这儿的那个人。
2) as在从句中作宾语This is the same watch as I lost while I was doing the sightseeing in Shanghai three months ago. 这块表跟我三个月前在上海观光时丢失的那块一样。
3) as在从句中作be动词的`表语China is not the same country as it used to be. 中国已今非昔比。
4) as在从句中作行为方式状语You should learn to do housework in the same way as your mother does it. 你应该学会像你母亲那样做家务活。
2. such ... as1) as在从句中作主语Let children read such books as tend to make them better and brighter. 让孩子看那些容易让他们变得更好更聪明的书。
2) as在从句中作宾语This is not such an interesting book as you just talked about. 这不是你们刚才谈到的那种有趣的书。
3) as在从句中作be动词的表语Such a bad man as he is will be punished. 像他这样的坏人一定会受到惩罚。
定语从句里as用法
定语从句里as用法定语从句里as用法导语:定语从句,一个简单句跟在一名词或代词后(先行词)进行修饰限定,就叫做定语从句。
在主句中充当定语成分。
被修饰的.词叫先行词。
定语从句不同于单词作定语的情况,它通常只能放在被修饰的词(即先行词)之后。
下面是由店铺为你整理的定语从句里as用法,欢迎大家阅读。
由as,which 引导的非限定性定语从句,as和which可代整个主句,which相当于and this或and that.1)As一般放在句首,which在句中.2) as也可在句中往往和see,know,expect等词连用.a.He seemed not to have grasped what I meant,which/and this greatly upsets me.b.The sun heats the earth,which/and this is very important to us.c.As was expected,the beautiful girl married a handsome boy.d.As we all know,smoking is harmful to one's health.e.He must be from Africa,as can be seen from his skin.定语从句中若先行词前有the same,such作修饰语,通常用as作关系代词.He used such expressions as he could find in the texts.They stayed for the night in the same room as they had once rented.such…as和such..thatsuch…as定语从句,as在从句中可以作主语,宾语,表语;such…that引导结果状语从句,that不充当任何成分,只起到连接作用,如:They talked in such simple language as children could understand.They talked in such simple language that children could understand it.the same…as和the same…that两者都可以引导定语从句,但the same…as指两件事物,而the same…that指同一件事物:He is using the same pen as I did 10 years ago.他用的这支钢笔和我十年前用的那支一个样.He is using the same pen that I did 10 years ago.他用的这支钢笔就是我十年前用的那支.【定语从句里as用法】。
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能n the city, ___C__ is shown in the report, has
能力突破
3. “You can’t judge a book by its cover,”___C____.
定语从句关系代词as的用法
考点透视 考纲定位和能力要求:重点掌握as引导非限制性定语从句的用法。
一、as 引导限制性定语从句
当先行词前有such, so, the same修饰,同时定语从句缺少主语或 宾语时,应使用关系代词as, 例如:
温馨提示:
要注意such/ so…as …引导的定语从句与such/ so…that 引导的 状语从句的区别。例如:
备考指津
1. 对于as引导定语从句的用法,高考重点考查的是as引导非
谢谢您的观看!
【总结】
1.位置上的不同:当先行词为一句话,as引导的非限定从可以放 在主句后,主句前,或者把主句拆分,放在中间;而which引导的非限 定从只能放在主句后。
2. as 引导非限定从与主语从句的区别。 As is known to all, the earth travels around the sun.
典题直击
The book is written in __D__ easy English ____ beginners can understand.
二、as引导非限制性定语从句
当as引导非限定从时,先行词为整个句子,同时在从句中担当主 语或宾语的成分,可以翻译成“正如”,例如:
注意事项: 1. as引导非限定从与which的区别。 1)As we know, he is an honest person.=
典题直击
1. There is no simple answer, __A___ is often the case in science.
典题直击
2. A lot of language learning, ___A___has been discovered, is happening
典题直击