as用法专练

As 用法专练

1. It is generally believed that teaching is ____ it is a science.

A. much as an art as

B. as much an art as

C. an art as much as

D. as much as an art

2. _____ I admire David as a poet, I don’t like him as a man.

A. Only if

B. If only

C. As much

D. Much as

3. ____ ,he talks a lot about his favourite singers after class.

A.A quiet student as he may be

B. Quiet student as he may be

C. Quiet as he may be a student

D. As he may be a quiet student

4.I wonder why you don’t do it as ____ and it’s the third time you have done so.

A. told you

B. be told

C. told to

D. you told

5.( 1) ___I explain on the phone, your request will be considered at the next meeting.

(2)____ I explain on the phone is that your request will be considered at the next meeting.

A. What

B. When

C. After

D. As

6.(1)That is ____ problem ____can’t be worked out by any of us .

(2)That is ____problem ____ none of us can work it out.

A. a such difficult , that

B. so difficult a ,that

C. such a difficult, as

D. a so difficult ,as

7.There were not so many jobs available ____ were asked for.

A. that

B. which

C. what

D. as

8.____ time went on, Einstein’s theory_____ right.

A. With, proved B As, be proved C. With, be proved D. As, proved

9.He will surely finish the job on time ____ he’s left to do it in his own way.

A. as if

B. even if

C. so long as

D. so that

10.Scientists generally agree that the earth’s climate will warm up over the next 50 to 100 years

____it has warmed in the 20,000 years since Ice Age.

A. As long as

B. as much as

C. as long as

D. as well as

11.Do come to my party, and bring your sister____.

A. as good

B. as a whole

C. as well

D. instead

12.It’s useless trying to argue with the sort of him. You might____ go and stand upon the beach and argue with the sea.

A as well

B also C. as if D. as well as

13.(1) We all passed the exam, but ___ him, he alone failed.

(2) ____ running, learning English needs will.

A. As/as with

B. As/as to

C. As/as for

D. As/as if

14.I thought things would get better, but ___ it is they were getting worse.

A before B. because C. as D. after

15.All the gifts must be mailed immediately____ in time for Christmas.

A in order to have received B. in order to received

C. so as to be received

D. so as to be receiving

16(1)Look! The clouds are gathering. It looks as if it ______ (rain).

(2)If you put a chopstick into water , it looks as if it _____(break)

Answers: 1-4 B D B C 5 (1)D (2) A 6.(1)C (2) B 7-10 D D C B 11-12 C A 13 (1)C (2)A 14-15 C C 16 (1) is going to rain (2) were broken

as-if-用法归纳

as if 用法归纳 1． as if 从句的作用as if一般可由as though来代替。 引导表语从句，可在look, seem等系动词后。如： He looked as if / though he was ill. 他看起来好像生病了。It seems as if it is going to rain.看来好像要下雨了。 引导方式状语从句。如： I remember the whole thing as if / though it happened yesterday. The child talked to us as if he were a grown-up. 那个小孩跟我们讲话就像个大人一样。 2． as if 从句的语气及时态 ①as if从句用述语气。当说话者认为句子所述的是真实的或极有可能发生或存在的事实时， It sounds as if it is raining. 听起来像在下雨。 He talks as if he is drunk. 从他说话的样子来看他是醉了。 ②as if从句用虚拟语气。当说话人认为句子所述的是不真实的或极少有可能发生或存在的情况时， 表示与现在事实相反，谓语动词用一般过去式。如： You look as if you didn’t care. 你看上去好像并不在乎。When a pencil is partly in a glass of water, it looks as if it were broken． 表示与过去或与谈话时间为止发生的事实相反，谓语动词用

“had +过去分词”。如： He talked about the Great Wall as if he had been there before.说起长城来好像他以前去过那里。 The girl listened as if she had been turned to stone.女孩听着，一动也不动，像已经变成了石头。 表示与将来事实相反，谓语动词用“would / could / might + 动词原形”。如： He opened his mouth as if he would say something. 他开嘴好像要说什么。 It looks as if it might snow. 看来好像要下雪了。 3． as if从句中的省略。如果as if 引导的从句是“主语+系动词”结构，可省略主语和系动词等成份，这样as if 后就只剩下名词、不定式、形容词（短语）或动词-ing形式等。 He acts as if (he was) a fool. 他做事像个傻子。 He paused as if (he was going) to let the sad memory pass. The girl left the room hurriedly as if (she was) angry. 女孩匆忙离开房间，好像生气的样子。 From time to time, Jason turned round as if (he was) searching for someone. 词汇学习 1. A smelly gas came out of the cracks.

as的用法

as的用法 一．用作介词： 1.“作为，担任”；“似，像” He works as a teacher in the school. She behaved toward him as a mother. 2.在句子中可充当状语、定语、宾语补足语和表语： As a newspaper reporter, he is naturally very much interested in the hero. He got a position as teacher of English. We regard him as a shining example for us to learn from. The world is as a stage. He was a guest and was treated as such. 二．用作副词，表示程度，主要用于as…as →如同，像。 His face is as black as coal. 三．用作连接词，引导状语从句。 1.引导比较状语从句 We will give you as much help as we can. 2.引导让步状语从句 Child as he is, he can speak several foreign language. Try as I might, I couldn't lift the stone. 3.引导时间状语从句，可有just 修饰。 Just as she was about to speak, she was handed a note. 4.引导原因状语从句 As Jane was the eldest, she looked after the others. 5.引导方式状语从句 She cooks a chicken as her mother did. Please do it as I said. 四．可引导关系代词： 1.引导限定性定语从句时，常与such或same连用。 Such people as you describe are rare nowadays. I feel just the same as you do. 2.也可引导非限定性定语从句，可放前，可放后。 I am working the night shift, as you know. 五．一些固定搭配。 1.as long as , as soon as , as long as 只要…就；一…就 As soon as I left, I burst out laughing. 2.as if 和as though引导方式状语从句用虚拟语气。 I remember it as if it happened yesterday. 3.as regards , as to , as for 表示关于，至于 He has no complain as to salary. 4.as well , as well as :“也，又” She wants a pen as well as a pencil 5.so as to 与so …as to 用作目的或结束 We hurried so as to get there in time.

有关as作连词的用法

有关as作连词的用法 一．as引导状语从句 as作为连词可以引导状语从句，表示时间、原因、方式、让步等。 1. 引导时间状语从句，意思是“当``````的时候”，同when/while,更强调“一边``````一边``````”。表“随着``````”的意思时同with,但with是介词，不可以跟从句。 eg: I saw him as he was getting off the bus. He often listens to the music as he is doing his homework. As time goes by, his illness is getting worse. 2. 引导原因状语从句，同since。 eg: We had better hurry as it is getting dark. As she has no car, she can’t get there easily. 有关as作连词的用法 一．二．as引导定语从句 1. as引导限制性定语从句。 as作为关系代词可以引导限制性定语从句，通常与the same或such连用，构成the same ``````as和such``````as句型。 eg: I have never heard such stories as he tells. This is the same dictionary as I lost. 有关as作连词的用法 要用倒装结构。可以把从句中表语、状语甚至谓语动词置于句首，如果是带有冠词的可数名词单数作表语，置于句首时应省去冠词。 eg: Young as he is, he knows a lot about history. Much as I like you, I will not marry you. Try as she might, Mary couldn’t get the door open. Boy as he is, he is very shy. (boy前省略冠词a) 4. 引导方式状语从句，表示方式。意思是“像，按照，如同”。 eg: Do it as I do it. You should finish your task as you are told to. Leave it as it is. 有关as作连词的用法 2. as引导非限制性定语从句。 as与which一样都可以引导非限制性定语从句，但是as引导的从句可以放在主句之前、主句之后，甚至还可以分割主句；而which引导的非限制性定语从句只能放在主句之后。另外as还有“正如、就像”之意。 eg: As is mentioned above, the number of the students in senior high schools is increasing. He was admitted to college, which made his parents very happy. John, as you know, is a writer. 动词不定式 动词不定式是非谓语动词的一种，它没有人称和数的变化，在句子中不能独立作谓语，但它仍保持动词的特点，既可以有自己的宾语和状语。

as well as的用法

as well as的用法 曲靖市第二中学 as well as后接动词到底该用什么形式，这是一比较复杂的问题，归纳起来有以下几点值得注意： 一、as well as构成同级比较结构，意为“和…… 一样好”。 第一个as是副词，第二个as是连词，引导一个状语从句，表示同级比较。 在否定句中可用not so well as代替not as well as。 He speaks English as well as a native speaker. 他讲的英语是和英语是母语的人一样好。 He can operate the machine as well as I do. 他操作这台机器和我一样熟练。 He speaks English as well as she. 他说英语说得跟她一样好。 She plays every bit as well as the men. 她打得一点不比男人们差。 He doesn’t play half so well as his sister. 他演奏的水平不及他姐姐的一半。 He sings as well as, if not better than, Mary. 他要是唱歌不比玛丽唱得更好，但至少也是一样好。 She cooks as well as her mother (does). 她烧菜和妈妈一样好。 二、as well as用作连词，连接两个并列的同等成分，其意义为“不但……而且……”，“既……又……”，这时相当于not only ... but also ...。 它所连接的部分既可以是单词、短语，也可以是句子。 在A as well as B的结构里，语意的重点在A，不在B。翻译时要特别注意。The girl is lively as well as healthy.（连接两个表语）这女孩既健康又漂亮。 He can speak Spanish as well as English. (连接两个宾语) 他不但会说英语，而且会讲西班牙语。 In China, as well as in Canada, the weather changes from season to season. (连接两个状语) 中国的天气和加拿大一样随季节的变化而变化。 The teacher as well as the students enjoys listening to English songs.（连接两个主语）老师和学生都爱听英语歌曲。 He grows flowers as well as vegetables. 他既种菜也种花。 She shares (in) my troubles as well as my joys. 她与我同甘共苦。 They have a flat in town as well as in the Country. 他们在城里有一套公寓，在乡村还有一所房子。 We are repairing the roof, as well as painting the walls. 我们既油漆墙壁，又修房顶。 It is important for you as well as for me. 这对我很重要，对你也很重要。 Lily as well as her parents is very fond of classical music. 不但莉莉的父母，而且连

as的用法和练习

as"随着" As online technology develops and ideas about academia change, there are many different opinions about whether it should still be mandatory for students to attend classes. As travel becomes increasingly accessible, more and more people take long vacations every year. But as I indicated in the above paragraph I still have meaningful conversations with friends on a regular basis. As I said above, students are likely to communicate with their classmates inside of the lecture hall. as“因为” Even if I wanted to follow his example, doing so would be impossible where I live, as the streets are too crowded for casual walking. The type of role-models we might emulate, though, depends on what programs we choose to consume, as both positive and negative messages are being broadcast all the time. This is not a problem, though, as both of our children go directly to a local community center when their classes are over. Their participation in these programs sets my mind at ease, as without access to the community center they would spend this time home alone or perhaps walking the streets. This situation compares favorably to a friend of mine who lives in a small town and is forced to hire an expensive babysitter to watch her children when they get home from school, as there are no meaningful activities for them to engage in when their classes finish. It was a traumatic experience as it happened in the middle of the night and we lost most of our belongings. as引导的倒装

as作连词的用法

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)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。 几个关于as...as的常见句型： (1)as...as possible Please answer my question as soon as possible.请尽快回答我的问题。 (2)as...as usual/before She looks as pretty as before.她看起来和以前一样漂亮。 (3)as long as... (引导条件状语从句) It took us as long as three years to carry out the plan.我们花了长达三年的时间才完成这项计划。 (4)as far as He walked as far as the railway station yesterday evening.昨天傍晚，他一直散步到火车站。 (5)as well as She cooks as well as her mother does.她烧菜烧得跟她母亲一样好。 一些带有as...as结构的常见短语归纳： as busy as a bee像蜜蜂一样忙碌 as easy as ABC像ABC一样容易 as deep as a well像井一样深 as light as a feather像羽毛一样轻 as soft as butter像黄油一样软 as rich as a Jew像犹太人一样富裕 2. as用作连词引导时间状语从句 as与when，while都是引导时间状语从句的从属连词，含义都是"当……的时候"。但它们有区别：用when时，从句的动作可以与主句的动作同时发生，也可以先于主句的动作发生；用while时，从句的动作为一过程，主句动作与从句动作同时进行或在从句动作过程中发生；用as时，主句和从句的动作同时发生，具有延续的含义。例如： (1)It was snowing when he arrived at the construction site.他到达工地时，天正在下雪。 (2)He was watching TV while his mother was cooking.他母亲做饭时他在看电视。 (3) You will grow wiser as you grow older.你会随着年龄的增长而越来越聪明。 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"。例如： (1) He will succeed because he is in earnest.他一定会成功，因为他很认真。 (2) Since you are so sure of it he”ll believe you.既然你对此如此有把握，他会相信你的。 (3) As rain has fallen, the air is cooler.因为下过雨，空气比较清爽。 4. as作连词引导让步状语从句 as与although (或though)，however (或no matter how)等都可以引导让步状语从句，含义是"虽然，

As的用法

一、作副词，意为“相同地”，“同样地”。例如： They don’t have as many airplanes. 他们没有同样多的飞机。 二、作连词， 1. 引导时间状语从句 as与when，while都是引导时间状语从句的从属连词，含义都是"当……的时候"。但它们有区别: (1). when作“当……的时候”解，可以指较短的(一点)时间,也可指一段时间。从句的动作可以与主句的动作同时发生，也可以先于主句的动作发生。例如: John was having his dinner when I saw him. 当我看到约翰的时候，他正在吃饭。 She can write only when the baby is asleep. 只有婴儿睡着的时候，她才能写作。 (2). 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发生或在从句动作过程中发生。例如: We must strike while the iron is hot. 要趁热打铁。 While we were reading, the teacher came in. 我们正在读书的时候，老师走了进来。 (3). 但属下列情形时，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……”。例如:

The girl dances as she sings on the stage.那个女孩在舞台边唱歌边跳舞。 He looked behind from time to time as he went forward. 当他朝前走时，不时地向后看。 ②表示两个同步发展的动作或行为,译为“随着……”。例如: As time went on / by, she became more and more worried. 随着时间的流逝，她变得越来越焦虑。 As he grew older, he became more intelligent. 随着他年龄的增长，他变得更有才智了。 ③表示两个短促行为或事件几乎同时发生。例如: I thought of it just as you opened your mouth. 恰好在你开口时，我想到了它。 Just as the flying worm hit her face, she gave a loud cry. 恰巧在飞虫撞到她脸上时，她大哭起来。[小精灵儿童网站] 2. 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”。例如： I do it because I like it. 我做这件事是因为我喜欢。

as 用法详解

as 用法详解 1.用作连词，表示让步 (意为：虽然，尽管)，要用于倒装句，且倒装后位于句首的名词通常不用冠词 (等于though, 但语气稍弱)。如： Child as[though]he was, he did quite well. 他虽是个孩子，但已干得很不错。 2.用作关系代词，主要用法有二。如： (1)用在such, same, as等之后，引导限制性定语从句。如： This is thesame watch as I lost. 这块表跟我丢失的那块一样。 Such men as (=Those men who) heard of him praised him. 听说过他的人都赞扬他。 (2)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 (常译为：正如)或之后 (常译为：这一点)，且主从句之间一般要用逗号隔开。如： He was absent, as is often the case. 他缺席了，这是常有的事。 As was expected, he succeeded at last. 正如我们所料，他终于成功了。 3.用来表示目的，下面两种句子结构都可以。如： 仔细写以便把每句话都写清楚。 正：Write carefully so as to make every sentence clear. 正：Write so carefully as to make every sentence clear. 4.在正式文体 (尤其是文学体裁)中，as后可用倒装语序表示“…也一样”这类意思 (现代英语通常so表示这一用法)。如： He travelled agreat deal, as did most of his friends. 他去过许多地方旅游，他的多数朋友也是一样。 He plays the piano, as does his mother. 他会弹钢琴，他母亲也会。 注：用作连词，表示原因 (参见because)，表示时间 (参见when)。 5.用于 as if as though, 意为“仿佛”、“似乎”。两者一般可通用 (但注意不能说 as although)。用法上注意几点：

as...as...的用法总结

as...as...的用法总结 as...as...的用法其实很简单，快来一起学习吧。下面就和大家分享，来欣赏一下吧。 as...as...的用法其实很简单 as是英语中用得比较多的一个词，也是很多小伙伴反映较难掌握的一个词。as的词性较多，用法也较复杂，我们今天先讲一下很常用的as...as...的用法 as...as...的基本意思为“与……一样”，"像...一样的"。例如： The tree is as tall as the building(is). 这棵树和那栋楼一样高。 其中的第一个as为副词，其后通常接形容词或副词(用原级) ，第二个as可用作连词(后接从句)。 as...as...的用法 1 基本用法： 虽然都是as...as...但在不同的语境下，意思也不同。例如：

1.表示不同人或物同一性质的比较，意为“……和……一样……" Michael is as bright as George(is). 迈克尔和乔治一样聪明。 2. 表示同一个人或物不同性质的比较，意为“既……又……” Alice works as happily as(she)plays(happily). 艾丽丝愉快地工作，尽情地玩。 3. 用于表示两个人或物不同性质的比较，表示程度相同或相当，意为“……且/而……”。 He was as handsome as his wife was beautiful. 他长得非常英俊，他的妻子也长得非常漂亮。 He was as experienced as his brother was green. 他经验丰富，而他兄弟却涉世未深。 使用时应注意以下几点： 1. 在否定句中，第一个as 也可换成so： He doesn’t study as [so] hard as his brother. 他学习不如他弟弟努力。 2. 在该结构的两个as之间通常接形容词或副词的原级，但若涉及数量或程度，可用“as much+不可数名词+as”和“as many+可数名词复数+as” ：

As的用法归纳as的用法归纳

As 的用法归纳 as的用法很多，又比较复杂，本文就此作一归纳： 一、作副词，意为“相同地” ，“同样地”。例如： They don'thave as many airplanes. 他们没有同样多的飞机。 二、作连词， 1. 引导时间状语从句 as与when, while都是引导时间状语从句的从属连词，含义都是"当..... 的时候" 。但它们有区别: (1) . when作“当……的时候”解，可以指较短的(一点)时间,也可指一段时间。从句的动作可以与主句的动作同时发生，也可以先于主句的动作发生。例 如: John was having his dinner when I saw him. 当我看到约翰的时候，他正在吃饭。 She can write only when the baby is asleep. 只有婴儿睡着的时候，她才能写作。 (2) . 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发生或在从句动作过程中发生。例如: We must strike while the iron is hot. 要趁热打铁。 While we were reading, the teacher came in. 我们正在读书的时候，老师走了进来。 (3) . 但属下列情形时，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……”。例如: The girl dan ces as she si ngs on the stage那个女孩在舞台边唱歌边跳舞。 He looked behind from time to time as he went forward. 当他朝前走时，不时地向后看。 ②表示两个同步发展的动作或行为,译为“随着…… ”。例如: As time went on / by, she became more and more worried. 随着时间的流逝，她变得越来越焦虑。 As he grew older, he became more intelligent. 随着他年龄的增长，他变得更 有才智了。 ③表示两个短促行为或事件几乎同时发生。例如: I thought of it just as you opened your mouth. 恰好在你开口时，我想到了它。 Just as the flying worm hit her face, she gave a loud cry. 恰巧在飞虫撞到她脸上时，她大哭起来。 2. 引导原因状语从句 as，because, si nee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” 。例如： I do it because I like it. 我做这件事是因为我喜欢。 Since many of the customers work during the day, Billy has to collect the money at night. 因为许多顾客白天上班,所以毕利只好晚上去收钱。 As she has been ill perhaps she'll need some help. 她由于生病可能需要些帮

连词as的用法

连词as的用法 §.连词 1.As ...as 用法：第一个as为副词，第二个as为连词。As+adj/ adv+ as; 否定为not as/ so...as. 若有twice, three times, half, a quarter等修饰，须置于第一个as前。 This film is as interesting as that one.这部电影和那部电影一样有趣。 Your pen writes as smoothly as mine.你的钢笔书写起来和我的一样流畅。 This dictionary is not as/so useful as you think.这本字典不如你想象的那样有用。 Your bag is twice as expensive as mine.你的袋子比我的贵一倍。 They are as often wrong as they are right.他们错对各半。 →几个as...as的常见句型以及常见短语： As ...as possible: Please answer my question as soon as possible.请尽快回答我的问题。 As ...as usual/before: She looks as pretty as before.她看起来和以前一样漂亮。 As far as: He walked as far as the railway station yesterday evening.一直散步到火车站。 As well( 也，还）：Come early, and bring your brother as well.早点来，把你的弟弟也带来。 As well as: She cooks as well as her mother does.她烧菜烧得跟她母亲一样好。 As /so long as (只要;长达）：So long as he is able,age is nothing. I’ll never forget your kindness as long as I live. It took us as long as 3 years to carry out the plan. As to(关于，至于）：There is no doubt as to his honesty. As much/ many as(多达，达到...之多）：He can earn as much as $5000 a month. As a result, as a result of (由于...结果）：She died as a direct result of the accident. So as to(so...as to):He is not so senseless as to do such a thing. He studied hard so as to pass the exam.她努力学习以便通过考试（表示目的）。As busy a a bee: 像蜜蜂一样忙碌

as...as的用法

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)This film is as interesting as that one.这部电影和那部电影一样有趣。 (2)Your pen writes as smoothly as mine.你的钢笔书写起来和我的一样流畅。 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。 几个关于as...as的常见句型： (1)as...as possible Please answer my question as soon as possible.请尽快回答我的问题。 (2)as...as usual/before She looks as pretty as before.她看起来和以前一样漂亮。 (3)as long as... (引导条件状语从句) It took us as long as three years to carry out the plan.我们花了长达三年的时间才完成这项计划。 (4)as far as He walked as far as the railway station yesterday evening.昨天傍晚，他一直散步到火车站。 (5)as well as She cooks as well as her mother does.她烧菜烧得跟她母亲一样好。 一些带有as...as结构的常见短语归纳： as busy as a bee像蜜蜂一样忙碌as easy as ABC像ABC一样容易as deep as a well像井一样深 as light as a feather像羽毛一样轻as soft as butter像黄油一样软as rich as a Jew像犹太人一样富裕 一、“as(否定句中可用so)＋adj．／adv．＋as…”，其基本意思为“……和……一样”。但在实际应用中，此结构在不同的语境中含义差异较大。 1、表示不同人或物同一性质的比较，意为“……和……一样……"。 The tree is as tall as the building(is)．这棵树和那栋楼一样高。 Michael is as bright as George(is)．迈克尔和乔治一样聪明。 2、表示同一个人或物不同性质的比较，意为“既……又……” Alice works as happily as(she)plays(happily)．艾丽丝愉快地工作，尽情地玩。 Danny is not so wise as he is witty．丹尼为人风趣，但欠明智。 3、用于表示两个人或物不同性质的比较，表示程度相同或相当，意为“……而……”。 He was as handsome as his wife was beautiful．他长得非常英俊，他的妻子也长得非常漂亮。 He was as experienced as his brother was green．他经验丰富，而他兄弟却涉世未深。 二、as…as结构的另一种形式是“as much／many＋名词＋as＋从句”。 Mary has written as many essays as her brother．玛丽写的文章篇数和她弟弟一样多。 It is as much your fault as your wife’s．这既是你的过错，也是你妻子的过错。 Henry is as much a hypocrite as·John．亨利跟约翰一样是个伪君子。 三、若有修饰成分，如twice，three times，half，a quaer等，必须置于第一个as之前。 You are not half as clever as you think you are．你可不像自己想象的那么聪明。 She isn’t going out with a man who is twice as old as she． 她不打算和一个比她大一倍的人出去散步。 You’ve made just as many mistakes as I have．我和你犯的错误一样多。

as-用法归纳和练习--(学案)

as 用法归纳和练习题 一、as作副词，表示程度，意为“同样地”。在“as．．．as．．．”，“not as/so．．．as．．．结构中的第一个as是副词，作“和／与．．．(不)一样”解。 Jack is as tall as his father． He doesn't speak English as／so fluently as you． 二、as作介词。 1．作“如，像”解。They got united as one man． 2．作“充当，作为”解。eg：As a writer，he was famous． 三、as作连词，常用来连接主句和状语从句。 1．引导时间状语从句，作“当．．．的时候”解，有“随着．．．”之意，与while意义相近，强调两个动作同时发生；或某事一发生，另一事立即发生。eg： He shouted aloud as her ran along．他一边往前跑，一边高声地呼喊。 I was startled as he opened the door．他一开门，我吓了一跳。 as作连词，相当于when。eg； As a little boy (When he was a little boy)he began to learn to play piano． 2．引导原因状语从句，作“因为，由于”解，与because的用法相近。eg； I must stop writing now，as I have rather a lot of work to do． 3．引导方式状语从句或比较状语从句，作“正如，(如)像”解。例eg： As in your country，we grow wheat in the north and rice in the south．正如(像)你们国家一样，我们在北方种小麦，在南方种大米。(方式状语从句) When at Rome，do as Romans do．入乡随俗。(方式状语从句) Leave it as it is. 保持原状，不要动它。 4．引导让步状语从句，作“虽然，尽管”解。这时从句常用倒装语序，即把从句中的表语、状语或动词原形放在as之前。eg； Strange as it may seem，it is true． 尽管这事看上去很奇怪，但却是真的。 Try as he might，Tom could not get out of the difficulties． 不管怎样努力，汤姆还是摆脱不了困境。 Child as he is, he know s a lot. Much as I like you, I will not marry you. 我虽然很喜欢你，可是不愿与你结婚。 四、as作关系代词。 1．引导限制性定语从句，用在“such．．．as”,“the same．．．as”，“as．．．as” “so… as”等结构中，常译作“像．．．一样的人(或物)”，“凡是．．．的人(或物)”。例eg： He wished to be such a man as Lei Feng was．他曾希望做一个像雷锋那样的人。 My hometown is no longer the same as it was．我的家乡再也不像过去一样了。2．引导非限制性定语从句，用来指代它前面的整个句子(即先行句)。这个分句可以位于句首、句中或句末。 As is well known，oceans cover more than 70％of the earth．