关于as 的短语
1. as good as 和…几乎一样
Don't worry，the matter 's as good as settled．别担心，问题差不多已经解
决了。
When the car was repaired，it looked as good as new．当这辆车修好的时候，
它看起 来差不多像新的一样。
2. as much as 差不多
much as 虽然，尽管 (让步状语)
Much as she likes him, she would never consider marrying him.
as much 同样的
I would do as much for you.
not so much as 与其…. 不如
3. so as to 为的是，以便
He ran quickly ~ catch the last bus.
so ….as to 如此…以至于
such as to 达到这样的程度一致
His speech is such as to incur enmity.
as such 作为这样一个…. .
He is a child, and must be treated as such.
He is a brilliant scholar and is everywhere recognized as
such.
It was as a physician that he represented himself, and ____ he was warmly
received. (97-49)
A as such B such as C as that D so that
4. (just) as …. So…. 正如，就像 既然……则……；随着……也就……
As water is to fish, so air is to man.
Just as we sweep our rooms, so we should sweep backward ideas from
our minds.
As a man lives, so he dies. 人既有生，亦必有死
As some are rich, (so) others are poor. 既有人富，就有人穷。
5. (just) as soon宁可；宁愿；乐意地
I would (just) as soon stay at home. 我宁可呆在家里。
Does Alan like hamburgers? (03-45)
Yes. So much ___ that he eats them almost every day.
A. for B as C to D so
2. language belongs to each member of the society, to the cleaner ___ to the
professor. (98-47)
A as far as B the same as C as much as D as long
注意： 同级比较短语 as
（ Just ）as …., so….. ，既然……则……；随着……也就…… 正如
A is to B what / as X is to Y
As A is to B, (so) X is to Y
no …. More than
not A so much as B
3.___ I like econmics, I like sociology much better. (03-49) A as much as B so much C how much D much as
一、以人（含职业）为喻体
as drunk as a lord 酩酊大醉，烂醉如泥（主人都酗酒？）
as grave/sober as a judge 严如法官，非常严肃（法官的严肃是可以理解）
as hungry as a hunter 非常饥饿（像猎人一般，中文常用“饿狼”做比喻）
as old as Adam 极其古老（圣经故事中的亚当，够老了吧？！）
as rich as a Jew 非常有钱（像犹太人）
as thick as thieves 亲密无间，非常亲密（像贼搭档一样，chummy, buddy-buddy）
as wise as Solomon 非常聪慧，聪明绝顶（像所罗门）
二、以动物为喻体
as bald as a coot 头发脱光的（像黑鹅一样秃）
as blind as a bat 有眼无珠（像蝙蝠一样瞎）
as blind as an owl 瞎透了（猫头鹰在晚上视力很好，白天很弱）
as black as a raven 像乌鸦一般黑
as bold〔brave 〕as a lion 非常勇猛（如狮子一般）
as busy as a bee 忙极了（像蜜蜂一样忙碌）
as faithful as a dog 像狗一样忠诚
as gentle as a lamb 温顺如羊
as happy〔cheerful ，gay 〕as a lark 非常欢乐（像百灵鸟）
as mad as a wet hen 非常生气（像弄湿的母鸡一样生气）
as mild as a dove 非常温和（像鸽子一样温和）
as poor as a church mouse 赤贫的（像教堂的老鼠一样穷）
as proud as a peacock 极骄傲（骄傲得像只孔雀）
as quiet as a mouse 极为安静（像老鼠一般）
as sly as a fox 像狐狸一样狡猾，老奸巨滑
as strong as a horse 健壮如牛（英语不说牛哟）
as stupid as an ass 蠢极了（像驴一样）
as tame as a chicken 非常听话（像小鸡一样驯服）
as timid as a hare 胆小如鼠（像野兔）
三、以植物为喻体
as beautiful as a flower 貌美如花（中西所见略同！）
as cool as a cucumber 泰然自若，极其镇静（冷静如黄瓜？）
as fair as a lily 美如百合
as green as grass 幼稚无知（绿色常表示“稚嫩、没有经验”，如green hand新手）
as like as two peas 一模一样（像两个豌豆）
as welcome as the rose in May 很受欢迎（五月的玫瑰）
四、以自然现象为喻体
as black as night 昏黑，漆黑（像夜晚漆黑一片）
as black as a thunder 面带怒容，脸色阴森（想想打雷那架势）
as clear as day 一清二楚，显而易见，极其明白（像白天一样清楚）
as cold as ice 冰冷
as quick as a flash 快如闪电
as right as rain 十分正确（如下雨般确定，挡也挡不住）
as white as snow 洁白如雪
五、以事物或物件为喻体
as bold as brass 厚颜无耻（像黄铜一样厚脸皮的）
as cheap as dirt 贱如泥土
as clear as a bell 健全的（像铃铛一样健全）
as clear as a bell＝very easy to hear and understand （像铃铛）清楚而容易听到的
as clear as crystals 一清二楚，清如水晶
as dull as lead 非常愚钝（把铅条放地上，想翻转一下都不容易啊）
as easy as a pie 极容易（像馅饼一样容易）
as firm（steady ）as a rock 安如磐石，坚定不移（岩石、磐石，够稳定了吧？）
as fussy as a hen with one chick 在小事上瞎操心（像母鸡对一只小鸡）
as hard as iron 坚如铁石
as hard as nether millstone 铁石心肠（硬如磨石）
as heavy as lead 沉重如铅（铅是何等“沉重”啊）
as plain as the nose in your face 一清二楚（像你脸上的鼻子一样清楚）
as thin as a lath 骨瘦如柴（像木板，木条）
as thin as a wafer 极薄（像薄脆饼一样薄）
as true as steel 绝对可靠（像钢一样可靠
as 的用法很多 先做归纳
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。
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。
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助。
3. 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，尽管”，但它们有区别：although 语气稍正式些，可放在句首，也可放在句中，主句中不能再用but ，但可以用yet ；as 所表示的语气较强，引导的让步状语从句用倒装语序；however 引导让步状语从句时，它的后面可跟形容词或副词，也要用倒装语序。例如：Although they are poor they are happy. 虽然他们很穷，但很快乐。
Angry as he was, he managed to speak calmly. 虽然他很生气，但是他讲话很平静。
However hard the question is, he can answer it. 不管问题有多难他都能回答。
注意：当as 引导让步状语从句时，句子的倒装语序有以下三种形式：
(1). 形容词或副词+as+主语+连系动词be 或实义动词。例如：
Rich as he is, he never spends a cent on clothes. 虽然他很富有，但他从不花一分钱在衣服上。
Much as I admire his courage, I don’t think he acted wisely. 我虽然佩服他的勇气，但我认为他这样做是不聪明的。
(2). 名词+as+主语+连系动词be (注意句首的名词不带冠词) 。例如：
Child as he is, he knows a lot. 尽管他是个孩子，但懂很多事情。
Boy as he was, he was chosen king. 尽管他还是个孩子，但却被立为国王。
(3). 实义动词+as+主语+助动词[如果没有助动词，则要加上一个do(does或did)]。例如：
Try as he may, he never succeeds. 尽管他很努力，但总是不成功。
Change your mind as you will, you will gain no additional support. 即使你改变主意，你也不会得到另外的支持。
4. 引导方式状语从句，意为“如”，“像”，“按照……的方式”。如:
I want you to tell my friend your very interesting experience exactly as you have told it to me. 我想让你像给我讲述的那样，给我的朋友讲一讲你那段极其有趣的经历。
Remember, you must do everything as I do. 记住，你必须按照我做的那样做一切。
注意：like 在非正式语体中可以有与as 相同的用法。如：
I can’t sing like I used to.我不能像以前那样唱歌了。
He writes just like his brother did when he was young. 他现在写文章正像他哥哥年轻时写文章一样。
5. 引导比较状语从句, 用于“as...as...或not so/ as...as...”中, 前一个as 是副词, 后一个as 是连词，意为“如(不如)…一样”。如:
(1). You hate her as much as I (=as I hate her).
(2). I don't speak English so/ as well as he does.
注意：句中连词as 后面的代词实际是省略了与主句相同的部分，即例（1）可以写成You hate her as much as I hate her. 如果很明显就能看出所省略的部分，意义不会含糊不清时，在口语中也可以用代词的宾格形式。例：
At your age you can’t expect to play football as well as me (= as I do).但例（1）就不能改I 为me ，改后意思就变为：
You hate her as much as you hate me. 你恨她像恨我一样深；而原句的意思为：你恨她像我恨她一样深。
三、作代词
as 作关系代词的用法
关系代词as 引导定语从句时，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。
1. as引导定语从句与其他词连用
(1). 用于the same...as结构中
This is the same watch as I have lost. 这块手表跟我丢失的那块一样。
(2). 用于such...as 结构中
I don’t like such novels as you recommend. 我不喜欢你推荐的那些小说。
(3). 用于"so +adj. + a/an + n. (单数) + as "结构中
I am not so strong a man as I was. 我已经没有从前那么强壮了。
2. as单独引导定语从句
as 单独引导定语从句时，先行词可以是一个词，也可以是一个句子或短语。例如：
(1) She is late, as is often the case. 她迟到了，这是经常的事。(先行词是整个主句)
(2) To shut your eyes to facts, as many of you do, is foolish. 对事实视而不见--你们好多人都是如此的愚蠢。(先行词是不定式短语)
注意1：(1). 当as 引导的定语从句位于具有否定意义的主句之前时，as 从句所修饰的范围是整个主句的内容，也就是说，把否定意义也包括在内。例如：
As has been said above, grammar is not a set of dead rules. 正如前面所说，语法不是一套死条文。
(2). 当as 引导的定语从句位于具有否定意义的主句之后时，as 从句所修饰的范围不包括否定意义。例如：
Spiders are not insects, as many people think. = Spiders are not insects. But many people think they are. 许多人认为蜘蛛是昆虫，但蜘蛛并不是昆虫。
(3). 当as 引导的定语从句位于具有否定意义的主句中间时，as 从句所修饰的范围也不包括否定意义。例如：
She did not, as her friend had feared, open the case. 她没有打开盒子，而她的朋友就是怕她当面打开盒子。
注意2: 当修饰句子的非限制性定语从句位于句尾时，as 可以用which 来替代。例如：
I live a long way from work, as (which) you know. 我住得离工作单位很远，这你是知道的。
但是，当as 从句位于句首或句中是，as 就不能用which 来替代了。例如：
As you will find out, I will never let you down. 你将会发现，我绝不会使你失望的。
Taiwan is, as you know, an inseparable part of China. 你们知道，台湾是中国不可分割的一部分。
此外，如果主句为否定句，则位于句末和句中的as 从句所修饰的范围并不包括主句的否定意义，此时，as 也不能用while 来替代。例如： Greenland was not a continent, as people thought. 格陵兰并不像人们所想象的那样是一个大陆。
四、作介词，
1. 表示 “好像(某人)”，例如:
They entered the building disguised as cleaners. 他们化装成清洁工人的模样进入大楼。
2. 表示“作为，当作”，例如：
I found a job as a teacher. 我找了一份教师的工作。
3. 表示“当某人是(某身份) 时。例如：
As a child, she was sent to three different countries. 她儿时去过三个不同的国家。
4. 表示“因某人是(某身份)”，例如：
As her private secretary he has access to all her correspondence. 他是她的私人秘书，能接触到她所有的信件。
注意1：as 引导的介词短语大多用作状语，as 译为" 作为" ，少数情况可引起宾语补足语。例如:
As a Party member, I'll take the lead in everything. (状语)
She works as a nurse. (状语)
Tom has me as one of his best friends. (引起宾语补足语)
注意2：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：
(1). He spoke as a teacher.
(2). He spoke like a 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”。
五、用于一些固定搭配
1. as good as差不多，几乎
Don’t worry, the matter’s as good as settled. 别担心，问题差不多已经解决了。
When the car was repaired, it looked as good as new. 这辆汽车修理好的时候，看起来差不多就像新的一样。
2. as if ／as though 似乎；好像
He behaved as if nothing had happened. 他装着若无其事的样子。
She treats him as though he was her own son. 她待他好像待自己的儿子一样。
另外，as if可以接一个动词不定式短语。例如：
He waved his hand to me as if to have something to tell me. 他向我挥手好像有什么要告诉我。
3. as well as 同（一样也）；和；还
Joan can speak Chinese as well as English. 琼能讲英语还能讲汉语。
He spent all his money, as well as wasting his time. 他不仅浪费了时间，还花光了他所有的钱。
4. such．．．as, such as 像……这样的
I bought a lot of fruits, such as apples, oranges, bananas and so on. 我买了许多种水果，像苹果，桔子，香蕉等。
We had such books as you never saw. 我们有一些你从未看过的书。
5. as for 至于某人（某事物）
We had a delightful weekend in the country. As for the traffic, we had no difficulty. 在乡下我们度过了一个愉快的周末。至于交通，我们没遇到任何困难。
6. as to 关于某事物；提到某事物
I don't know anything as to the others. 至于其他，我一无所知。
7. so as to ．．． 以便, 为了
Students should take notes so as to make revision easier. 学生应当记笔记，以便容易复习。
8. as a matter of fact 其实；实际上
As a matter of fact, I’m very fond of housework. 其实，我很喜欢做家务。
9. as a result 结果 (发生某种情况)
As a result， he had been given an excellent job. 结果，他得到了一份极好的工作。
10. as long as 只要
You may borrow this book as long as you promise to give it back. 只要你答应归还，你就可以把这书借走。
总之，通过以上的分析，我们对as 的词性和用法有了比较全面的理解和把握，才能在实际的运用中做到心中有数，应付自如。
巩固练习
①as far as远至……到……的限度 ② as soon as一……就 ③as well as 也；还；而且④as far as be concerned 就……而言⑤as good as 和……一样 ⑥as long as长达……
关于as 的短语
1. as good as 和…几乎一样
Don't worry，the matter 's as good as settled．别担心，问题差不多已经解
决了。
When the car was repaired，it looked as good as new．当这辆车修好的时候，
它看起 来差不多像新的一样。
2. as much as 差不多
much as 虽然，尽管 (让步状语)
Much as she likes him, she would never consider marrying him.
as much 同样的
I would do as much for you.
not so much as 与其…. 不如
3. so as to 为的是，以便
He ran quickly ~ catch the last bus.
so ….as to 如此…以至于
such as to 达到这样的程度一致
His speech is such as to incur enmity.
as such 作为这样一个…. .
He is a child, and must be treated as such.
He is a brilliant scholar and is everywhere recognized as
such.
It was as a physician that he represented himself, and ____ he was warmly
received. (97-49)
A as such B such as C as that D so that
4. (just) as …. So…. 正如，就像 既然……则……；随着……也就……
As water is to fish, so air is to man.
Just as we sweep our rooms, so we should sweep backward ideas from
our minds.
As a man lives, so he dies. 人既有生，亦必有死
As some are rich, (so) others are poor. 既有人富，就有人穷。
5. (just) as soon宁可；宁愿；乐意地
I would (just) as soon stay at home. 我宁可呆在家里。
Does Alan like hamburgers? (03-45)
Yes. So much ___ that he eats them almost every day.
A. for B as C to D so
2. language belongs to each member of the society, to the cleaner ___ to the
professor. (98-47)
A as far as B the same as C as much as D as long
注意： 同级比较短语 as
（ Just ）as …., so….. ，既然……则……；随着……也就…… 正如
A is to B what / as X is to Y
As A is to B, (so) X is to Y
no …. More than
not A so much as B
3.___ I like econmics, I like sociology much better. (03-49) A as much as B so much C how much D much as
一、以人（含职业）为喻体
as drunk as a lord 酩酊大醉，烂醉如泥（主人都酗酒？）
as grave/sober as a judge 严如法官，非常严肃（法官的严肃是可以理解）
as hungry as a hunter 非常饥饿（像猎人一般，中文常用“饿狼”做比喻）
as old as Adam 极其古老（圣经故事中的亚当，够老了吧？！）
as rich as a Jew 非常有钱（像犹太人）
as thick as thieves 亲密无间，非常亲密（像贼搭档一样，chummy, buddy-buddy）
as wise as Solomon 非常聪慧，聪明绝顶（像所罗门）
二、以动物为喻体
as bald as a coot 头发脱光的（像黑鹅一样秃）
as blind as a bat 有眼无珠（像蝙蝠一样瞎）
as blind as an owl 瞎透了（猫头鹰在晚上视力很好，白天很弱）
as black as a raven 像乌鸦一般黑
as bold〔brave 〕as a lion 非常勇猛（如狮子一般）
as busy as a bee 忙极了（像蜜蜂一样忙碌）
as faithful as a dog 像狗一样忠诚
as gentle as a lamb 温顺如羊
as happy〔cheerful ，gay 〕as a lark 非常欢乐（像百灵鸟）
as mad as a wet hen 非常生气（像弄湿的母鸡一样生气）
as mild as a dove 非常温和（像鸽子一样温和）
as poor as a church mouse 赤贫的（像教堂的老鼠一样穷）
as proud as a peacock 极骄傲（骄傲得像只孔雀）
as quiet as a mouse 极为安静（像老鼠一般）
as sly as a fox 像狐狸一样狡猾，老奸巨滑
as strong as a horse 健壮如牛（英语不说牛哟）
as stupid as an ass 蠢极了（像驴一样）
as tame as a chicken 非常听话（像小鸡一样驯服）
as timid as a hare 胆小如鼠（像野兔）
三、以植物为喻体
as beautiful as a flower 貌美如花（中西所见略同！）
as cool as a cucumber 泰然自若，极其镇静（冷静如黄瓜？）
as fair as a lily 美如百合
as green as grass 幼稚无知（绿色常表示“稚嫩、没有经验”，如green hand新手）
as like as two peas 一模一样（像两个豌豆）
as welcome as the rose in May 很受欢迎（五月的玫瑰）
四、以自然现象为喻体
as black as night 昏黑，漆黑（像夜晚漆黑一片）
as black as a thunder 面带怒容，脸色阴森（想想打雷那架势）
as clear as day 一清二楚，显而易见，极其明白（像白天一样清楚）
as cold as ice 冰冷
as quick as a flash 快如闪电
as right as rain 十分正确（如下雨般确定，挡也挡不住）
as white as snow 洁白如雪
五、以事物或物件为喻体
as bold as brass 厚颜无耻（像黄铜一样厚脸皮的）
as cheap as dirt 贱如泥土
as clear as a bell 健全的（像铃铛一样健全）
as clear as a bell＝very easy to hear and understand （像铃铛）清楚而容易听到的
as clear as crystals 一清二楚，清如水晶
as dull as lead 非常愚钝（把铅条放地上，想翻转一下都不容易啊）
as easy as a pie 极容易（像馅饼一样容易）
as firm（steady ）as a rock 安如磐石，坚定不移（岩石、磐石，够稳定了吧？）
as fussy as a hen with one chick 在小事上瞎操心（像母鸡对一只小鸡）
as hard as iron 坚如铁石
as hard as nether millstone 铁石心肠（硬如磨石）
as heavy as lead 沉重如铅（铅是何等“沉重”啊）
as plain as the nose in your face 一清二楚（像你脸上的鼻子一样清楚）
as thin as a lath 骨瘦如柴（像木板，木条）
as thin as a wafer 极薄（像薄脆饼一样薄）
as true as steel 绝对可靠（像钢一样可靠
as 的用法很多 先做归纳
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。
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。
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助。
3. 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，尽管”，但它们有区别：although 语气稍正式些，可放在句首，也可放在句中，主句中不能再用but ，但可以用yet ；as 所表示的语气较强，引导的让步状语从句用倒装语序；however 引导让步状语从句时，它的后面可跟形容词或副词，也要用倒装语序。例如：Although they are poor they are happy. 虽然他们很穷，但很快乐。
Angry as he was, he managed to speak calmly. 虽然他很生气，但是他讲话很平静。
However hard the question is, he can answer it. 不管问题有多难他都能回答。
注意：当as 引导让步状语从句时，句子的倒装语序有以下三种形式：
(1). 形容词或副词+as+主语+连系动词be 或实义动词。例如：
Rich as he is, he never spends a cent on clothes. 虽然他很富有，但他从不花一分钱在衣服上。
Much as I admire his courage, I don’t think he acted wisely. 我虽然佩服他的勇气，但我认为他这样做是不聪明的。
(2). 名词+as+主语+连系动词be (注意句首的名词不带冠词) 。例如：
Child as he is, he knows a lot. 尽管他是个孩子，但懂很多事情。
Boy as he was, he was chosen king. 尽管他还是个孩子，但却被立为国王。
(3). 实义动词+as+主语+助动词[如果没有助动词，则要加上一个do(does或did)]。例如：
Try as he may, he never succeeds. 尽管他很努力，但总是不成功。
Change your mind as you will, you will gain no additional support. 即使你改变主意，你也不会得到另外的支持。
4. 引导方式状语从句，意为“如”，“像”，“按照……的方式”。如:
I want you to tell my friend your very interesting experience exactly as you have told it to me. 我想让你像给我讲述的那样，给我的朋友讲一讲你那段极其有趣的经历。
Remember, you must do everything as I do. 记住，你必须按照我做的那样做一切。
注意：like 在非正式语体中可以有与as 相同的用法。如：
I can’t sing like I used to.我不能像以前那样唱歌了。
He writes just like his brother did when he was young. 他现在写文章正像他哥哥年轻时写文章一样。
5. 引导比较状语从句, 用于“as...as...或not so/ as...as...”中, 前一个as 是副词, 后一个as 是连词，意为“如(不如)…一样”。如:
(1). You hate her as much as I (=as I hate her).
(2). I don't speak English so/ as well as he does.
注意：句中连词as 后面的代词实际是省略了与主句相同的部分，即例（1）可以写成You hate her as much as I hate her. 如果很明显就能看出所省略的部分，意义不会含糊不清时，在口语中也可以用代词的宾格形式。例：
At your age you can’t expect to play football as well as me (= as I do).但例（1）就不能改I 为me ，改后意思就变为：
You hate her as much as you hate me. 你恨她像恨我一样深；而原句的意思为：你恨她像我恨她一样深。
三、作代词
as 作关系代词的用法
关系代词as 引导定语从句时，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。
1. as引导定语从句与其他词连用
(1). 用于the same...as结构中
This is the same watch as I have lost. 这块手表跟我丢失的那块一样。
(2). 用于such...as 结构中
I don’t like such novels as you recommend. 我不喜欢你推荐的那些小说。
(3). 用于"so +adj. + a/an + n. (单数) + as "结构中
I am not so strong a man as I was. 我已经没有从前那么强壮了。
2. as单独引导定语从句
as 单独引导定语从句时，先行词可以是一个词，也可以是一个句子或短语。例如：
(1) She is late, as is often the case. 她迟到了，这是经常的事。(先行词是整个主句)
(2) To shut your eyes to facts, as many of you do, is foolish. 对事实视而不见--你们好多人都是如此的愚蠢。(先行词是不定式短语)
注意1：(1). 当as 引导的定语从句位于具有否定意义的主句之前时，as 从句所修饰的范围是整个主句的内容，也就是说，把否定意义也包括在内。例如：
As has been said above, grammar is not a set of dead rules. 正如前面所说，语法不是一套死条文。
(2). 当as 引导的定语从句位于具有否定意义的主句之后时，as 从句所修饰的范围不包括否定意义。例如：
Spiders are not insects, as many people think. = Spiders are not insects. But many people think they are. 许多人认为蜘蛛是昆虫，但蜘蛛并不是昆虫。
(3). 当as 引导的定语从句位于具有否定意义的主句中间时，as 从句所修饰的范围也不包括否定意义。例如：
She did not, as her friend had feared, open the case. 她没有打开盒子，而她的朋友就是怕她当面打开盒子。
注意2: 当修饰句子的非限制性定语从句位于句尾时，as 可以用which 来替代。例如：
I live a long way from work, as (which) you know. 我住得离工作单位很远，这你是知道的。
但是，当as 从句位于句首或句中是，as 就不能用which 来替代了。例如：
As you will find out, I will never let you down. 你将会发现，我绝不会使你失望的。
Taiwan is, as you know, an inseparable part of China. 你们知道，台湾是中国不可分割的一部分。
此外，如果主句为否定句，则位于句末和句中的as 从句所修饰的范围并不包括主句的否定意义，此时，as 也不能用while 来替代。例如： Greenland was not a continent, as people thought. 格陵兰并不像人们所想象的那样是一个大陆。
四、作介词，
1. 表示 “好像(某人)”，例如:
They entered the building disguised as cleaners. 他们化装成清洁工人的模样进入大楼。
2. 表示“作为，当作”，例如：
I found a job as a teacher. 我找了一份教师的工作。
3. 表示“当某人是(某身份) 时。例如：
As a child, she was sent to three different countries. 她儿时去过三个不同的国家。
4. 表示“因某人是(某身份)”，例如：
As her private secretary he has access to all her correspondence. 他是她的私人秘书，能接触到她所有的信件。
注意1：as 引导的介词短语大多用作状语，as 译为" 作为" ，少数情况可引起宾语补足语。例如:
As a Party member, I'll take the lead in everything. (状语)
She works as a nurse. (状语)
Tom has me as one of his best friends. (引起宾语补足语)
注意2：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：
(1). He spoke as a teacher.
(2). He spoke like a 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”。
五、用于一些固定搭配
1. as good as差不多，几乎
Don’t worry, the matter’s as good as settled. 别担心，问题差不多已经解决了。
When the car was repaired, it looked as good as new. 这辆汽车修理好的时候，看起来差不多就像新的一样。
2. as if ／as though 似乎；好像
He behaved as if nothing had happened. 他装着若无其事的样子。
She treats him as though he was her own son. 她待他好像待自己的儿子一样。
另外，as if可以接一个动词不定式短语。例如：
He waved his hand to me as if to have something to tell me. 他向我挥手好像有什么要告诉我。
3. as well as 同（一样也）；和；还
Joan can speak Chinese as well as English. 琼能讲英语还能讲汉语。
He spent all his money, as well as wasting his time. 他不仅浪费了时间，还花光了他所有的钱。
4. such．．．as, such as 像……这样的
I bought a lot of fruits, such as apples, oranges, bananas and so on. 我买了许多种水果，像苹果，桔子，香蕉等。
We had such books as you never saw. 我们有一些你从未看过的书。
5. as for 至于某人（某事物）
We had a delightful weekend in the country. As for the traffic, we had no difficulty. 在乡下我们度过了一个愉快的周末。至于交通，我们没遇到任何困难。
6. as to 关于某事物；提到某事物
I don't know anything as to the others. 至于其他，我一无所知。
7. so as to ．．． 以便, 为了
Students should take notes so as to make revision easier. 学生应当记笔记，以便容易复习。
8. as a matter of fact 其实；实际上
As a matter of fact, I’m very fond of housework. 其实，我很喜欢做家务。
9. as a result 结果 (发生某种情况)
As a result， he had been given an excellent job. 结果，他得到了一份极好的工作。
10. as long as 只要
You may borrow this book as long as you promise to give it back. 只要你答应归还，你就可以把这书借走。
总之，通过以上的分析，我们对as 的词性和用法有了比较全面的理解和把握，才能在实际的运用中做到心中有数，应付自如。
巩固练习
①as far as远至……到……的限度 ② as soon as一……就 ③as well as 也；还；而且④as far as be concerned 就……而言⑤as good as 和……一样 ⑥as long as长达……