as的用法

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as的用法

as的用法

一、as作从属连词时,引导不同种类的状语从句。

(1)as引导时间状语从句时,译作“当……时候”,可以放在主句之前,也可以放在主句之后。

例如:He smiled as he said goodbye to me.他向我道别时微笑了一下。

As she was walking in the park, she heard a girl singing.她在公园里散步时,听到一位女孩在唱歌。

I sang an English song as I went along the river.我边沿河边走边唱英文歌。

(2)as引导原因状语从句时,表示已知的原因,译作“既然;由于;因为……”,通常放在句首。

例如:As it is too late for you to go home, y ou’d better stay over night at this place.由于天太晚,你不能回家了,你最好留在这儿过夜。

As it is going to rain, the sports meet will be put off until next week.由于天要下雨,运动会将推迟到下星期开。

(3)as引导比较状语从句时,有“as …as”、“not as / so …as”结构,第一个as是副词,第二个as是连词。

译作“跟……一样”、“跟……不一样”。

这种从句有三种不同的结构形式和意义。

(A)表示两个不同的人(或物)在相同(或不同)方面的比较。

例如:He is as careful as his elder brother.他和他哥哥一样细心。

She is not so clever as her sister.她不如她姐姐聪明。

(B)表示同一个人(或物)在不同方面的比较。

例如:She is as kind as (she is )honest.她既诚实又和蔼。

(4)as引导方式状语从句时,译作“按照;如同”。

as 的用法

as 的用法

as的用法
as的六种用法如下:
1、as做介词,意思是“作为”
eg.French is known as the most beautiful language in the world.法语以世界上最美丽的语言著称。

2、as做连词,引导时间状语从句,意思是“当……的时候”
eg.My mother was cooking fish as I arrived home.当我到家的时候,我妈妈正在做鱼。

3、as做连词,引导原因状语从句,意思是“因为”
eg.As rain has fallen, the air is cooler. 因为下过雨,所以空气比较凉爽。

4、as做连词,引导让步状语从句,意思是“虽然”
eg.Young as he is, he has been one of the most famous painters in our country. 虽然他还很年轻,但已经成为我们国家最有名的画家之一。

5、as做连词,引导方式状语从句,意思是“以……方式”
eg.Do as the Romans do when in Rome. 入乡随俗
6、as做关系代词,引导定语从句
eg.This is the same game as I played yesterday.这和我昨天玩的游戏一样。

as的用法和固定搭配

as的用法和固定搭配

as的用法和固定搭配一、AS的用法简介AS(as)作为一个英语单词,在不同的语境中可以有多种用法和固定搭配。

无论是在口语还是书面语中,正确使用AS可以帮助我们表达更准确、流畅的意思。

本文将针对AS的不同用法进行详细介绍,帮助读者更好地理解和运用这个常见而重要的词汇。

二、表示身份或职业AS作为一个连词时,常用于表示身份、职位或角色。

例如,“He works as a teacher.”(他是一名教师),“She acts as a guide for tourists.”(她担任游客导游)。

这种用法中,AS可被理解为“做为”或“充当”。

三、表示功能或目的AS也常被用来表示某物的功能或目的。

比如,“I use my phone as an alarm clock.”(我把手机当作闹钟使用),这里AS指明了手机在该句中扮演了闹钟的功能。

另外,“She used her coat as a blanket to keep warm.”(她把大衣当作毯子盖着保暖),也是一个很常见的例子。

四、比较两种事物相似性另一种常见的用法是使用AS来比较两种事物之间的相似性。

例如,“She looks as beautiful as her mother.”(她看起来像她妈妈一样美丽),在这个句子中,AS用来将“她”和“她妈妈”之间的相似性进行对比。

五、表示时间,程度或方式此外,AS还可用于表示时间、程度或方式。

例如,“I will finish the report as soon as possible.”(我会尽快完成报告),“He did the task as well as he could.”(他尽力完成了任务)。

这些例句中,AS表示了某个行为或状态发生的时间、程度或方式。

六、固定搭配1: AS IF/THOUGH除了AS的基本用法外,AS还与一些特定词汇固定搭配使用。

其中之一是“as if/as though”。

As的用法大全

As的用法大全

As的用法小结(一)、as作连词的用法:1。

作“在…期间,当…的时候"引导时间状语从句.注意与when、while的用法区别。

①下列情形时,只用as,而不用when或while。

1)用于表示同一个人的两种动作交替进行,指一边---—一边。

如:The girl sings as she goes to school。

He looked behind occasionally as he went forward in the forest。

2)表示两个同步发生的动作或行为,意思是随着…的发展.如:As time went on / by, she became more and more beautiful。

As children get older, they become more and more interested in everything.3)表示两个短暂行为或事情几乎同时发生。

如:I watched her as she read the book.I thought of it just as you opened your mouth.Just as the flying worm hit her face, she gave a loud cry。

4)接名词表示某一个年龄段时。

如:As a young man,he was active in sports。

As a little boy (When he was a little boy)he began to learn to play the piano。

②when作"当……的时候”解,可以指较短的(一点)时间,也可指一段时间。

如:When I was at college,I could speak several foreign languages.When the clock struck twelve, I had slept for 2 hours.I was wandering through the street when I caught sight of a tailor’s shop有意料之外的意思③while常表示一段较长的时间或一个过程,强调主句谓语动词与从句谓语动词同时如:Work while you work。

as的用法总结

as的用法总结

as的用法总结大家在英语学习的时候经常会对as的用法感到疑惑,下面小编给大家对as的用法做了总结,希望可以帮助到大家!as用法一、as作连词的用法1.as...as的用法as...as意为"和……一样",表示同级的比较。

使用时要注意第一个as为副词,第二个as为连词。

其基本结构为:as+adj./adv.+as。

例如:(1)Your pen writes as smoothly as mine.你的钢笔书写起来和我的一样流畅。

(2)This film is as interesting as that one.这部电影和那部电影一样有趣。

其否定式为not as/so+adj./adv.+as。

例如:This dictionary is not as/so useful as you think.这本字典不如你想象的那样有用。

若有修饰成分,如twice,three times,half,a quarter等,则须置于第一个as之前。

例如:Your bag is twice as expensive as mine.你的袋子比我的贵一倍。

2、as引导时间状语从句此时,as译作“当……时候”,可以放在主句之前,也可以放在主句之后。

例如:He smiled as he said goodbye to me.他向我道别时微笑了一下。

As she was walking in the park,she heard a girl singing.她在公园里散步时,听到一位女孩在唱歌。

I sang an English song as I went along the river.我边沿河边走边唱英文歌。

3.as用作连词引导原因状语从句as,because,since都可以表示因果关系,连接原因状语从句,含义是"因为,由于",但它们有区别:because表示的语气最强;as一般放在句首,语气较弱,较口语化;since常常用在书面语中,表示多为对方已知的、或稍加分析便可得知的原因,有时可译作"既然"。

as的用法及搭配

as的用法及搭配

as的用法及搭配一. 引言在英语学习中,词汇的灵活运用是非常重要的。

作为一个很有特色的副词,"as" 在句子中能够起到不同的功能,并可以与其他词搭配使用。

本文将详细介绍"as" 的用法及其常见搭配,帮助你更好地掌握这个词汇。

二. "as" 的用途1. 作为连词:"As" 可以用作比较结构中的连词,引导一个定从来对前面的主从进行比较。

例如:- John is as tall as his brother.- She sings as beautifully as a bird.2. 作为副词:(a) 表示程度或方式:- He works as hard as anyone in the company.- The rain fell heavily, sounding like bullets hitting the roof.(b) 表示原因或理由:- As is often the case, I forgot my keys again.(c) 表示时间:- As I was leaving the house, I saw a car crash.三. "as" 的常见搭配1. As...as...这种结构表示两者相等,并且可以修饰形容词、副词或动词。

例如:- Lucy is as clever as her sister.- He can run as fast as a cheetah.2 .As well"As well" 表示也,用于添加另一个信息或说明。

例如:- I enjoy reading books, and I like watching movies as well.3. As a result"As a result" 意思是因此,引导一个结果状语从句。

as意思为作为的用法

as意思为作为的用法

as意思为作为的用法
as是一个介词和连词,表示"作为"的意思。

作为介词时,as通常用于引导方式或角色的描述。

例如:
1.作为一名教师,我喜欢与学生互动。

2.她表现出了出色的领导能力,作为团队的领导者。

作为连词时,as常用于引导原因、方式和时间等从句。

例如:
1.他放弃了这个机会,因为他不喜欢那个城市。

2.我们必须按照计划行动,正如我之前所说的。

除了作为介词和连词,as还可以作为副词,表示程度或方式。

例如:
1.她画得和专业艺术家一样好。

2.他能够以同样有效的方式解决问题。

此外,as还可以作为缩写形式,表示"当...时候"。

例如:
1.正如预料的那样,当我到达机场时,航班已经取消了。

总的来说,as作为一个多功能的词语,在不同的语境中可以表示"作为"或引导从句,帮助更清晰地表达句子的意思。

as表作为的用法

as表作为的用法

as表作为的用法作为一个常见的介词,"as"在英语中有多种用法。

本文将重点介绍"as"作为连词时的用法和意义。

以下是"as"作为连词时的几种常见用法。

1. 表示因果关系当"as"用于表示因果关系时,相当于"because"或"since",引导原因状语从句。

例如:"As I was tired, I decided to go to bed early." (由于我很累,我决定早点睡觉。

)2. 表示时间关系"as"也可用于表达时间关系,引导时间状语从句,相当于"when"。

例如:"I received a phone call as I was leaving the office." (当我要离开办公室时,我接到了一个电话。

)3. 表示身份或职业在一些固定搭配中,"as"可以表示某人的身份或职业。

例如:"He works as a doctor in a local hospital." (他在一家地方医院做医生。

)4. 表示方式或性质"as"可以表示某事物的方式或性质,引导方式状语从句。

例如:"She moved as quietly as possible so as not to wake anyone up." (她尽可能地悄悄地移动,以免吵醒任何人。

)5. 表示比较"as"可用于表示比较关系,引导比较状语从句。

例如:"She is as tall as her sister." (她和她妹妹一样高。

)6. 表示让步有时候,"as"可以表示让步关系,相当于"although"或"though"。

as的用法归纳

as的用法归纳

as的用法归纳
“as”是一个英语连词,具有多种用法。

以下是“as”的用法归纳:
1、引导时间状语从句:as表示“当……时候”,“随着……”,“一经……就……”,强调主句和从句中的动作或状态同时发生或进行。

例句:As time goes by, I grow more and more confident. 随着时间的推移,我变得越来越自信。

2、引导原因状语从句:as表示“因为”,与because相比,语气较轻。

例句:As it was getting dark, we decided to stay in the hotel. 因为天色渐渐暗了,我们决定在旅馆里待着。

3、引导方式状语从句:as表示“以……方式”,“像……一样”。

例句:She looks at the world as if she were the only person in the world. 她看待世界的方式就像她是世界上唯一的人一样。

4、引导让步状语从句:as表示“尽管”,“虽然”。

例句:Young as he is, he knows a lot. 尽管他很年轻,但他知道很多事情。

5、引导比较状语从句:as表示“与……一样”,“像……一样”。

例句:He is as tall as his father. 他和他父亲一样高。

6、作为介词:as还可以作为介词,表示“作为”,“以……身份”。

例句:He works as a teacher. 他作为一名教师工作。

综上所述,“as”是一个非常灵活的连词,具有多种用法。

掌握其用法可以更准确地表达思想和意义。

As的用法大全

As的用法大全

As的用法小结(一)、as作连词的用法:1.作“在…期间,当…的时候”引导时间状语从句.注意与when、while的用法区别。

①下列情形时,只用as,而不用when或while。

1)用于表示同一个人的两种动作交替进行,指一边--—-一边. 如:The girl sings as she goes to school.He looked behind occasionally as he went forward in the forest。

2)表示两个同步发生的动作或行为,意思是随着…的发展。

如:As time went on / by,she became more and more beautiful.As children get older,they become more and more interested in everything。

3)表示两个短暂行为或事情几乎同时发生.如:I watched her as she read the book。

I thought of it just as you opened your mouth.Just as the flying worm hit her face,she gave a loud cry。

4)接名词表示某一个年龄段时.如:As a young man, he was active in sports.As a little boy (When he was a little boy) he began to learn to play the piano.②when作”当……的时候”解,可以指较短的(一点)时间,也可指一段时间。

如:When I was at college, I could speak several foreign languages.When the clock struck twelve,I had slept for 2 hours。

as的用法归纳

as的用法归纳

as的用法归纳as一词看似很简单,但词性多,词义广,用法灵活,不易掌握,而且在高中阶段出现频率也很高,因此系统地掌握该词对英语的学习大有益处。

现将其用法归纳如下:一、as作介词的用法1.表示“好像(某人)”,例如:The actor was dressed as a poli-ceman.这个演员化妆成一名警察。

2.表示“有(某人)的身份或特征;作为,当作”,例如:I'm speaking as your employer.我以雇主的身份和你说话。

3.表示“因某人是(某身份)”,例如:As his private secretary,she has access to all his correspondence.由于是他的私人秘书,她能接触到他所有的信件。

4.表示“当某人是(某身份)时”,例如:As a child,1went ab-road twice.我儿时曾出国两次。

注意:as和like都可以作介词,但意义不同。

as表示“以实际的身份或地位”.like则表示“与…相似,以与…相类似的方式”例如:(l)He spoke asa teacher.(2)He spoke likea teacher.句(1)的意思是:“他作为老师发言”或“他以老师的身份发言”,句(2)的意思是:“他讲话很像是老师”。

二、as作副词的用法表示“达到与…相同的程度;与…等同”,例如:He swims fast,but I swim just as fast.She has a lot of books,but I don't have as (so)many.(在否定句中,as可以用so来替代)三、as作关系代词,引导定语从句as作关系代词,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,既可以单独使用,也可以与其他词连用,其用法要比that和which更为复杂,应加以比较和that,which的区别。

as的用法总结及典型句子

as的用法总结及典型句子

千里之行,始于足下。

as的用法总结及典型句子as 是一个多功能的词语,可以作为副词、连词、介词和名词使用。

下面是as 的不同用法和典型句子的总结:As 作为副词:1. 表示程度或方式:- He ran as fast as he could.(他尽可能地快速跑)- She sang as beautifully as an angel.(她唱得像天使一样动听) - I'm as tired as a dog after a long day.(我一整天后很累)2. 表示顺序或顺便:- She cooked dinner as she listened to music.(她一边做晚饭一边听音乐)- As you go to the store, can you pick up some milk?(你去商店的时候能带点牛奶回来吗?)3. 表示比较:- He is as tall as his brother.(他和他兄弟一样高)- The new house is twice as big as the old one.(新房子比旧房子大两倍)As 作为连词:1. 表示原因或理由:- I couldn't attend the party as I had to work.(我没有参加聚会因为我得工作)- You should wear warm clothes as it's cold outside.(外面冷,你应该穿暖和的衣服)第1页/共3页锲而不舍,金石可镂。

2. 表示时间顺序:- I will finish the report as soon as possible.(我会尽快完成报告)- As I walked into the room, I noticed a strange smell.(当我走进房间时,我闻到一股奇怪的气味)3. 表示比较:- He is as tall as his brother, as clever as his sister, and as kind as his mother.(他和他的兄弟一样高,和他的姐姐一样聪明,和他的妈妈一样善良)As 作为介词:1. 表示身份或角色:- He works as a teacher in a local school.(他在一所当地的学校里担任教师)- I will introduce you to my friend as John's cousin.(我会把你介绍给我朋友,告诉他你是约翰的堂兄弟)2. 表示方式或手段:- She painted the picture as a gift for her parents.(她把这幅画作为给父母的礼物画的)- He fixed the problem as best as he could.(他尽力解决了这个问题)As 作为名词:1. 表示作为一个整体或一个单元:- I like fish, but I don't eat it as often as I used to.(我喜欢吃鱼,但我现在不像以前那样经常吃了)千里之行,始于足下。

As的用法小结

As的用法小结

As的用法小结As的用法小结As可以作为连词、介词、关系代词和副词。

下面分别介绍它们的用法。

1.作为连词,用于引导时间状语从句,表示在某个时间段或某个动作进行的时候。

需要注意的是,在一些情况下只能使用as,不能使用when或while。

这些情况包括:表示同一个人的两种动作交替进行,指一边做一边。

例如:___.表示两个同步发生的动作或行为,意思是随着某个事情的发展。

例如:As time went on。

she became more and more beautiful.表示两个短暂行为或事情几乎同时发生。

例如:I watched her as she read the book.接在名词后面表示某一个年龄段时。

例如:As a young man。

he was active in sports.2.作为介词,表示“以……身份、身份、品质、方式、角度等”。

例如:He was treated as a hero.3.作为关系代词,引导定语从句,表示“作为、像……一样”。

例如:___.4.作为副词,表示“同样地、像……一样”。

例如:He can speak Chinese as well as English.2."As" can be used as "since" or "because" to ___ clause thatis already known or us。

For example。

"As she's been ill for ages。

I will help her." Or "Since you're not feeling well。

you may stayat home." Or "As he wasn't ready。

we went without him."3."As" can also be used as "in the way that" to ___ manner。

英语语法as的用法归纳

英语语法as的用法归纳

英语语法as的用法归纳1. 表示身份、职业或特征As a teacher, I enjoy helping students learn.作为一名教师,我喜欢帮助学生学习。

2. 表示按照、根据Do as I say, not as I do.按照我的话做,不要按照我的行为来做。

3. 表示身份、职业的一部分I work as a translator.我的职业是翻译员。

4. 表示时间、顺序As time goes by, things will get better.随着时间的推移,事情会变得更好。

5. 表示原因、结果He couldn't come to the party as he was sick.他因为生病无法参加派对。

6. 表示比较She is as intelligent as her sister.她和她姐姐一样聪明。

7. 表示尽管As difficult as the task is, we will not give up.尽管任务很困难,但我们不会放弃。

8. 表示某种程度She is not as tall as her brother.她没有她哥哥高。

9. 表示方式、方式He spoke in a loud voice as if he was angry.他以一种大声的口吻说话,好像他很生气。

10. 表示一致、同样As we discussed earlier, the project will start next week.正如我们之前讨论的那样,项目将于下周开始。

11. 表示条件You can borrow my car as long as you promise to return it on time.只要你答应准时归还,你可以借我的车。

12. 表示目的I study hard as to pass the exam.我努力学习以便通过考试。

总结:英语语法中的as有多种用法,包括表示身份、职业或特征,表示按照、根据,表示时间、顺序,表示原因、结果,表示比较,表示尽管,表示某种程度,表示方式、方式,表示一致、同样,表示条件,表示目的等等。

As的用法大全

As的用法大全

As的用法大全As的用法小结(一)、 as作连词的用法:1.作“在…期间,当…的时候”引导时间状语从句.注意与when、while的用法区别。

①下列情形时,只用as, 而不用when或while。

1)用于表示同一个人的两种动作交替进行,指一边----一边. 如:The girl sings as she goes to school.He looked behind occasionally as he went forward in the forest.2)表示两个同步发生的动作或行为,意思是随着…的发展.如:As time went on / by, she became more and more beautiful.As children get older, they become more and more interested in everything.3)表示两个短暂行为或事情几乎同时发生.如:I watched her as she read the book.I thought of it just as you opened your mouth.Just as the flying worm hit her face, she gave a loud cry.4)接名词表示某一个年龄段时.如:As a young man, he was active in sports.As a little boy (When he was a little boy) he began to learn to play the piano.②when作"当……的时候"解,可以指较短的(一点)时间,也可指一段时间。

如:When I was at college, I could speak several foreign languages.When the clock struck twelve, I had slept for 2 hours.I was wandering through the street when I caught sight of a tailor’s shop 有意料之外的意思③ while常表示一段较长的时间或一个过程,强调主句谓语动词与从句谓语动词同时如:Work while you work. Play while you play.Strike while the iron is hot趁着2. As =Since 作"既然"、"由于"解,常用来表示已为人们所知或显而易见的原因或理由。

as的七种用法

as的七种用法

as的七种用法【释义】asadv.(程度或数量上)同样,一样;例如,诸如conj.像……一样;(说明某事应完成的时间或发生的频率);照……方式,和……一样;正如,如同;当……时候,在……时候;虽然,尽管;因为,由于;(关系)就像,相当于;以至于(与so或such 连用表结果)prep.(被看)作……,(被描绘)为……;作为,当【短语】1Queer As Folk同志亦凡人;同志亦常人;同志常人2as for至于;关于;就;就……方面说3as well同样;也;还是……为好;一样4as a result因此;结果是;作为结果5as if好像;似乎;仿佛;仿怫6such as例如;诸如;比如;像7As Good As It Gets尽善尽美;猫屎先生;爱在心头口难开;人生就是这样8as a rule通常;规章;照例;通常来说9As long as只要;如果;既然;长达【例句】1Her skin was as smooth as silk.她的皮肤像丝绸一样光滑。

2You're as tall as your father.你和你父亲一样高。

3He's nearly as tall as you are.他差不多和你一样高了。

4It's not as hard as I thought.这没有我想象的那么困难。

5I felt as pleased as anything.我感到无比高兴。

6His career is as good as over.他的事业差不多要完了。

7This isn't as bad as I thought.这没我原来所想的那么差。

英语语法15之as的用法

英语语法15之as的用法
5.条件状语从句 so/as long as“只要...就”;as/so far as“就...而论,在...范围内”
举例:So long as you are innocent,fear nothing. His views must carry some weight in so far as they are based on
He practically became allergic to the money,as he grew richer and older. [注]as和连词when,while的用法区别。 ①as引导的是一个持续性的动作,所表示的“同时发生”的意义比when更 明显些,往往主句的动作发生时,从句的动作正在进行。 举例:We held hands as we walked.
We ought to try to see things as they are. ③“过去分词+as it is”结构:加强分词的作用,表示退让或暂时承认。 举例:Translated as it is into good chinese,the novel os worth reading. ④as it were(虚拟语气,作插入语用,可用于任何时态的句子中,it无特 殊意义)“似乎,好像,可以说是”。 举例:This book gives,as it were,a vivid picture of our city.
We must study so long as we are alive. As often as he came,he stayed with us.
一、as用作从属连词
(一)引导多种状语从句
2.原因状语从句 ①as“由于,因为”—引导的原因状语从句表示的是明显的原因,是既成 的事实。放在主句的前面,多用于日常谈话中。 举例:As you are tired,you had better rest. ②as引导的原因状语从句,为了强调语气,可将表语移到句首。 举例:Young as he was,he was not equal to the task.

as 的用法总结

as 的用法总结
词和副词,常与其它的词搭配构成短语,并引导各种从句,在句中起着不同的作用,句法功能也不近相同。AS在句子中作主语、主语补足语、宾语、宾语补足语、表语、状语、定语、同位语等成份。一、 在句子中作主语 1、 AS单独使用,起关系代词的作用,引导定语从句,并在从句中作主语。它代表所修饰的句子的意思,译为“这”、“这个”“这一点”等。(1) AS在非限制性定语从句中做主语,先行词不是某个名词,而是整个句子。a) Slowly and carefully he made up his mind, as was his nature.(慢慢地但又仔细地下定决心,这是他的天性。)b) He, as is customary with him, goes to work at 7 o\'clock in the morning(他早晨七点钟去上班,这是他的习惯。)c) It is absolutely wrong to think foreign languages useless, as quite a few people did before.(认为外语无用是绝对错误的,不少人过去有这种想法。)d)Gunpowder, as we all know, was invented in ancient China.(中国古代发明了火药,这点我们都知道)(2) AS + 过去分词 构成的省略定语从句中,AS作主语,倒替整个主句内容,译为“正如”、“如”等,其中常用的搭配有:as already explained正如已解释过的as previously stated如前所述as shown in fig如图所示如:a) As already stated ,friction is one of source of heat.(正如已谈过的,磨擦作用是一种源。)b) A meter is sup
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4、在多数情况下,从句中的谓语动 词可省略
as explained before如前面所解释的 as mentioned above如前面所提到的 as shown in the figure如图所示 as already discussed正如已讨论的 as seen from the table从表中可以看出
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When a pencil is partly in a glass of water, it looks as if it( B ). A. breaks B. were broken C. has broken D. had been broken 本题为as if 引导的虚拟条件句,主句表示与 常识相反,谓语动词应该使用过去时。
(3). As作为介词,常和以下动词连用。 regard…as/be known as/consider…as use…as/ describe…as/be remembered as work as/ act as/be honored as We regard the sun as the source of most forms of energy.
II、as作为副词
在as…as…结构中,前一个as是副词,后一个 as是连词(有时可省略);在否定句中,作 副词的as可以用so代替。例如: The book is pretty difficult. That one is as difficult. He is as tall as his father.
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More examples: ① She died as a result of the accident. ② The reasons are as above(as follows). ③ The machine runs as usual. ④ As a matter of fact, air is a gas. ⑤ His father gets up early as a rule. ⑥ You should improve your English as soon as possible. ⑦When sound travels through air, the air, as a whole doesn’t move. ⑧Today our life has been much better as compared with that before liberation. 和解放前 比起来我们今天的生活好得多了。
注意:such…as与such…that, so…as与so…that的 区别:that是连词,引出结果状语从句,在从句中 不做成分;as是关系代词,引出定语从句,在从句 中可作主语、宾语和表语。比较: He is such a nice boy that everyone likes him. He is such a nice boy as everyone likes. 这个男孩的性格如此之好,人们都喜欢他。 It is so difficult a problem that nobody can work it out. It is so difficult a problem as nobody can work out. 这个问题太难了,没有人能解决。
As的用法
As的四种词性
As有四种词性,即介词、副词、 连词和关系代词。
I. As作介词
1(1). 作 “如,像”解。e.g① They got united as one man. ② She spoke of me as her closed friend. (2). 作“充当,作为”解。e.g③ As a writer, he was famous. ④English is spoken as the first language be most people in Australia.
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There are different forms of energy, such as heat energy,light energy, sound energy and etc. 6.as to(=as for/as regards)关于,至于 as much as/as many as “ 多达…,达到… 至多” There is no doubt as to his honesty. He can earn as much as 500 dollars a day. 7.as a result/as a result of(由于……的结果) as a whole(就整体来说)/as follows(如下 ) as usual (照 常)/as a (general) rule(通常) as a matter of fact(事实上)/as above(如上) as soon as possible/as early as possible as quickly as possible
3、注意下面的习惯用法
as is well discussed正如已讨论过的 as is often said正如通常所说的 as is often the case通常就是这样 as has been pointed正如所指出的那样 as has been said before正如之前所说 as often happens如同经常所发生的那样 as might be expected正如所料 as is well known to all众所周知
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Tom studies Japanese as well as Chinese. Tom studies not only Chinese but also Japanese. as well→译为“也,还”经常放在句尾。与too, also同义词。 Come here early, and bring your brother as well. 4.So as to do sth./so…as to do sth.→引导 目地或 结果状语。He studies hard so as to pass the exam. He was so strong as to carry the heavy box. 5.such as→意为“例如,诸如”可用来引入同位 语,举一例或数例说明它与之同位词的词 所含的 具体内容。
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2、as单独使用
As可单独使用,意为“作为……,当作……”。 例如: The news apparently came as a complete surprise.这个消息显然让人大吃一惊。 I had natural ability as a footballer. 我天生就是当足球运动员的料。
Ⅴ. 含as的固定词组
1.as soon as→引导时间状语从句。 So/as far as I know→在句中作插入语。意思是 “据我所知”。As/So far as I know, he will come here next Monday. 2.As well as→并列连接词组,意思是:“和, 同”。当其连接两个并列主语时,谓语动词应 与前面的主语在数上保持一致。也可以和短 语 not only…but also进行替换。 My parents as well as my elder sister enjoy music. My elder sister as well as my parents enjoys music.
2、as引导非限制性定语从句
as引导非限制性定语从句时,通常指的不是 主句中的某一个名词(先行词),而是指整 个主句表达的内容,对主句所作的陈述进行 附加说明,意为“这……,正如……”。这种 从句可位于主句之前、之中或之后。例如: As we all know, Taiwan belongs to China. Taiwan, as we all know, belongs to China. Taiwan belongs to China , as we all know. 众所周知,台湾属于中国。
( A)has already been pointed out , grammar is not a set of dead rules. A. As B. It C. That D. Which as引导定语从句,在定语从句中既充当成分 又含有意义,意为“正如”。
3、as做后置定语 as用在名词后面,作后置定语,在意义上相 当于所修饰的名词的同位语。例如: Over the years, tools and technology themselves as a source of fundamental innovation have largely been ignored by historians and philosophers of science. 一直以来,工具和技术本身作为根本性创新 的源泉,在很大程度上却被历史学家和科学 思想家们忽视了。
III、as作为连词
As做连词可引导时间状语从句(意为“随着…”)、 原因状语从句(意为“既然,因为…”)、方式状 语从句(意为“如,像”)、让步状语从句(意为 “虽然,尽管”)和比较状语从句。 As the man grew older, he lost interest in everything except gardening. Young as he was, he made the greatest inventions this year. It’s not so easy as he said. 注意:as引导的比较状语从句中,如果主语是名词 短语且较长,经常采用倒装结构(不用倒装也可 以)。例如:Reading is to the mind as is exercise to the body.
IV、as作为关系代词
as作为关系代词,用来引导定语从 句,包括限制性定语从句和非限制 性定语从句。
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