as的用法

1.as you can imagine 2.as suspected of 3. as time is pressing

4. plays as important a role 5. as has been stressed 6.as no one has expected 7.as has been scheduled 8.Foolish as it sounds 9.as she got older and older 10. has learned as many English words 11.Hate him as we may 12.As the sun sinks 13.leave things as they are 14.which is almost as strong as 15.as time goes on 16.as we expected 17.as soon as you decided 18.as is shown in his work 19。Four times as many

20.the same as 21.as we can see 22. as big a kite/a kite as big

23.as are bad for 24.regarded as one of the best 25.Rich as our country is 26.As is universally acknowledged 27.Deaf and mute as he is 28.as long as you are equipped 29.as you are interested in 30.As she sang 31.As he wasn’t allowed

32. half as large as 33. as we had been expecting 34. It comes as no surprise 35. not as/so fluently as 36.have I felt as/so discouraged 37.easy as it used to be 38.(which is) referred to as 39.as far as I know 40.which/as could be seen from

第二篇：As的用法

As的用法：
1.按传统用法，用as…as 表比较和用 so…as 表比较二者有别。 so…as 结构传统上用于否定句，（ 如莎士比亚“不如井深” ）， 和疑问句中（如在如她所说的那样糟糕吗? ）， 和某些if 从句中（如在 如果象你所说的那样糟，你就该离开 ）。 但so…as 结构在美国英语中日趋少见， 而在所有语境中使用as…as 现在则是完全可以接受的。 在有as…as 和 than 同时用作比较时， 在书面语中，第二个as 应该保留。 一种写法He is as smart as，or smarter than，his brother，（他如他兄弟一般聪明，甚至超过他了） ，而不应写成 He is as smart or smarter than his brother， 这在正式文件中被认为是不可接受的。在很多方言中，用as 代替 that 如 We are not sure as we want to go 或 It's not certain as he left 。 这种结构在书面语中尚不成立。当as 表示一个因果关系时，前面应有逗号， 如She won't be coming, as we didn't invite her。（她不会来这里，因为我们没有邀请她） 。 当用于表示时间关系时，as 前没有逗号：
She was finishing the painting as I walked into the room.[x]
She was finishing the painting as I walked into the room（我走进房间的时候她刚好画完画）。

2. 当as 引导一个从句且位于句首时，应注意弄清 as 是表示“原因”还是表示“与…同时”。 句子As they were leaving，I walked to the door 既可表示我向门口走去，因为他们离开了，也可表示在他们离开的时候，我向门口走去。 as 有时赘用，引导动词的补助成分诸如 consider,deem， 和 account， 。 如在他们将此认为是民权运动的里程碑。 认为此测量标准不必要。 这种用法也许源于词的类比用法regard 和 esteem ， 在此as 这种形式的用法是标准的：
We regarded her as the best writer among us.[x]
我们认为她是我们中最好的作家。

as用法小结

(1) as用作连词
① 作“当……的时候”解，引导时间状语从句，表示从句动作与主句动作同时发生、同时进行。As he looked at her she made a face. 他看她时，她作了个鬼脸。/ He sang as he walked. 他一边走，一边唱。
② 作“由于”、“因为”解，引导原因状语从句，表示比较明显的原因。由as引导的原因从句通常放在主句之前。As he didn't know much English，he got out his dictionary and looked up the word. 由于他不懂得多少英语，他拿出来词典查了这个词。
③ 作“如 (不如)……一样”解，引导方式状语从句或比较状语从句。He does not speak as the other people do. 他不像其他人那样肯说话。He is not so diligent as you. 他不如你勤奋。(so…as…只用于否定句。若为肯定句必须用as…as…)
④引导让步状语从句时，作“虽然”、“尽管” 解，这时，要将表语或状语提到主语之前，使句子部分倒装。如果表语是名词，放在句首时不能加冠词。Young as he is, he knows a lot. 尽管年轻，他懂得很多。Old man as he is, he still works hard. 尽管他是个老人，他仍然工作很努力。

(2) as用作代词
① 作关系代词，引导限制性定语从句，先行词前常有such，the same与之呼应，构成such...as，the same (…) as…。We'll make such computers as are needed in different branches of science. 我们将制造出科学的各部门所需要的那种计算机。/ I'm reading the same books as you. 我读的书与你读的书相同。
②引导非限制性定语从句，as常常作主语、定语、表语等，在这种情况下as指的是前面或后面的整个句子。The two cities are far away from each other, as you can see in the map. 正如你在地图上看见的那样，这两座城市相距甚远。/ As everybody knows, all that glitters is not gold. 大家都知道，闪光的东西不都是金子。

3) as if (as though) 用作连词，作“就像…似的”“仿佛”解
(1) as if (as though)引起的方式状语从句或表语从句中动词一般用虚拟语气, be通常为were或was。如从句动作与主句动作同时发生，从句用一般过去时；若从句动作在主句动作之前发生，从句用过去完成时。Jane shouted in surprise as if she saw the land. 珍妮惊喊着，好像看见了陆地。/ Tom is talking about China as if he had been there. 汤姆正在谈着中国，好像他去过一样。
(2)若主句谓语动词为look，seem，taste，smell等词时，as if引导的表语从句常常使用陈述语气。 It looks as if it is going to rain. 看起来天好像耍下雨。/ This meat tastes as if it has already gone bad. 这肉尝起来好像已变坏了。
(3)当从句中主语和句子主语一致，从句谓语又包含动词be时，这个主语和be可以省略。He glanced about as if (he was) in search of something. 他四处打量着好像在搜寻什么。
(4) as if (as though)可以接一个不定式短语。He waved his hand to me as if to have something to tell me. 他向我挥了挥手好像有事要告诉我。

辨析：as，when与while
as，when，while作为连词，都有“当……的时候”的意思。* as常可与when或while通用，但它较强调主句和从句中的动作或事情同时发生。因此，常作“一面……一面……”解。 * while常表示一段较长的时间或一个过程，强调主句的动词和从句的动词所表示的动作或状态是同时发生的。用while引导的从句中用延续性动词。
As (When／While) I was walking down the street, l noticed a police car in front of Number 37. 我沿着大街往前走的时候，注意到37号门前停着一辆警车。/ When the clock struck twelve, all the lights went out. 钟敲12下时，灯全熄了。/ When I went into the lab, the professor was doing an experiment. 当我走进实验室时，那位教授正在做实验。/ Please keep quiet while others are studying. 别人在学习的时候，请保持安静。/ While I was writing letters last night, he was watching TV. 昨晚我在写信的时候，他在看电视。
误：As he is old, my teacher works hard.
正：Old as he is, my teacher works hard.
尽管我的老师年龄很大了，但是工作很努力。
误：So as to catch the early bus, he got up very early.
正：He got up very early so as to (in order to) catch the early bus. 他起早是为了赶早班车。
拓展：as a matter of fact实际上; as a result (of)结果; as far as就……而言；远至as follows如下as for至于，关于as long as只要; as well as还，也; as to至于，关于; as many as (表可数)和……一样多，达……之多

　　

as用法小结



一）as作副词，表示程度，意为“同样地”。在“as．．．as．．．”，“not as．．．as．．．”结构中的第一个as是副词，作“和／与．．．(不)一样”解。eg：

Jack is as tall as his father．杰克和他的父亲一样高。

He doesn't speak English as／so fluently as you．他的英语说得不如你流利。

二）as作介词。

1．作“如，像”解。eg：

They got united as one man．他们团结得像一个人一样。

2．作“充当，作为”解。eg：

As a writer，he was famous．作为作家，他是很有名的。

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．他小时候就开始学弹钢琴。

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．我必须停笔了，因为我还有许多工作要做。

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)

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。

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”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)，意思是“这一点”。这个分句可以位于句首、句中或句末。eg：

As is well known，oceans cover more than 70％ of the earth．我们知道，海洋占地球面积的百分之七十以上。

五）含as的固定词组的用法

1．as soon as作“一…就”解，引导时间状语从句。eg：

As soon as I get to Beijing，I'll write to you．我一到北京，就给你写信。

2．as／so long as作“只要”解，eg；

As／So long as you study hard，you'll make progress．只要你努力，你就会取得进步。

3．as if／though常用来引导方式状语从句，作“好像，仿佛”解。如果从句中讲的是非真实情况，则用虚拟语气。eg：

She loves the child as if／though he were her own．她爱这个孩子如同爱自己的孩子。

As if／though也可用来引导表语从句，常用在“It appears／looks／seems．．．+as if／though”句型结构中。eg；

It appears as if／though it is going to clear up．看起来天要晴了。

It seems as if／though he knew nothing about it.他好像对此事一无所知。

4．as to作“关于，至于”解。eg；

There is no doubt as to his honesty．他的诚实是无可置疑的。

5．as much／many as作“多达．．．”，“达到．．．之多”解。eg：

He can earn as much as 5000 dollars a month．他每月能挣5000美元。

6．so／as far as I know作“就我所知”解，在句中作插入语。eg：

As／So far as I know，he will come here next Monday．据我所知，他将于下星期一到这里来。

7．as a result，as a result of表示“由于．．．的结果”。eg：

She died as a direct result of the accident．她的死是那次事故的直接结果。

8，as well为“也，还”之意。eg：

Come early，and bring your brother as well．早点来，把你的弟弟也带来。

9．so as to，so．．．as to若跟动词原形，表示目的或结果。eg：

He studied hard so as to pass the exam．他努力学习以便通过考试。(表示目的)