AS语言教程
as含义和用法？
as含义和用法？
as的几种用法：1.做连词，固定搭配as……as，意思是“和……一样”；2.做连词，表示“当……的时候”；3.做连词，表示“因为”4.做连词，表示“尽管”等。
做连词，固定搭配as……as，意思是“和……一样”
例句：
My sister is as tall as me.
我姐姐和我一样高。
He runs as fast as me/I.
他和我跑得一样快。
She is as beautiful as me/I.
她和我一样漂亮。
Being a mother isn#39t as bad as I thought at first!
做一位母亲并不像我当初想的那样糟！
做连词，引导时间状语从句，意思是“当……的时候”
例句：
My mother was cooking fish as I arrived home.
当我到家的时候，我妈妈正在做鱼。
I was always hard up as a student.
我当学生时总是很拮据。
The crowd cheered as she went up the steps to the bandstand.
当她走上演奏台的台阶时，人群欢呼起来。
All the jury#39s eyes were on him as he continued.
所有陪审员的目光在他继续下去时都集中在了他身上。
做连词，引导原因状语从句，意思是“因为”
例句：
As rain has fallen, the air is cooler.
因为下过雨，所以空气比较凉爽。
Enjoy the first hour of the day. This is important as it sets the mood for the rest of the day.
享受一天中的第一个小时。这很重要，因为这第一个小时决定当天其余时间的情绪。
做连词，引导让步状语从句，意思是“虽然，尽管”
例句：
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。
Happy as they were, there was something missing.
尽管他们很快乐，但总缺少点什么。
Much as they hope to go home tomorrow, they#39re resigned to staying on until the end of the year.
尽管他们很希望明天就回家，但不得不待到年底。
做关系代词，引导定语从句
例句：
This is the same game as I played yesterday.
这和我昨天玩的游戏一样。
As Albert Einstein suggested, things should be as simple as possible, but no simpler.
正如爱因斯坦认为的那样，事情要尽可能地简单，而不是简单一些。
做介词，意思是“作为”
例句：
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。
Personas are represented as individual people.
作为个体代表的人物角色。
He has worked as a diplomat in the U.S., Sudan and Saudi Arabia.
他曾做过驻美国、苏丹和沙特阿拉伯的外交官。
The news apparently came as a complete surprise.
这消息显然是个彻头彻尾的意外。
I really value him as a friend.
我真的把他视为好朋友。
such as句子结构？
一、such as 的七个用法
1. 表示举例，such as 意为“例如，诸如此类的，像……那样的”，相当于like或for example。如：
Animals such as rabbits and deer continue to be active all winter，finding food wherever they can .
像兔和鹿这样的动物整个冬天都是很活跃的，它们到处寻找食物。
用于此义时的几点说明：
(1) 这类结构既可表现为“名词 such as 例子”，也可表现为“such 名词 as 例子”。如：
I enjoy songs such as this one. I enjoy such songs as this one.
我喜欢像这首歌一样的歌。
(2) 若 such as 后接动词，通常用动名词，有时也可用动词原形。如：
Dont do anything silly such as marry him.
不要做什么蠢事，比如说去嫁给他。
(3) 不要按汉语意思将such as 用作such like。
(4) such as 后不可列出前面所提过的所有东西。如：
正：I know four languages, such as Japanese and English.
我懂四种语言，如日语、英语。
误：I know four languages, such as Chinese, French, Japanese and English. 我懂四种语言，如汉语、法语、日语和英语。
(5) 在现代英语中，such as可与etc. 连用。如：
They planted many flowers, such as roses, sunflowers，etc.
他们种了许多种花，如玫瑰花、向日葵等。
2. such as 表示“像……这样的”，其中的 as 用作关系代词，引导定语从句，as 在定语从句中用作主语或宾语。此外，不要按汉语意思把该结构中的 as 换成like。如：
He is not such a fool as he looks.
他并不像他看起来那么傻。
Such men as he (is) are rare now.
现在像他这样的人很少了。
3. such as 表示“凡是……的人(或事物)”、“所有……的人(事物)”，其意相当于 everything that, all those, those that (who)等。其中的 such 为先行词，as 为关系代词。如：
Take such (things) as you need.
你需要什么就拿什么。
You may choose such as you prefer.
你可挑选自己想要的东西。
4. 有时 such as 整个儿用作关系代词，用以引导定语从句。如：
We had hoped to give you a chance such as nobody else ever had.
我们本来希望给你一个别人从未有过的机会。
Then I left it，feeling a weight at my heart such as I had never had before.
然后我离开那里，心头感到一种前所未有的沉重心情。
5. 用于 such…as to do sth，表示结果，其中的such为限定语，as to do sth 表示结果。如：
It was such a loud noise as to wake everybody in the house.
声音很大，屋里的所有人都被吵醒了。
You shouldnt put such high prices as to frighten your customers off.
你不应该要价这么高，以致把顾客都吓跑了。
6. 用于such as to do sth，表示程度或结果。其中的such是代词，as to do sth引出的结构作程度状语或结果状语。如：
Her illness was not such as to cause anxiety.
她的病不是很重，不必担心。
7. 用于 such as it is 构成习语，表示让步，意思是“尽管不怎么好”“尽管不一定正确”“尽管没什么价值或重要性”。如：
The food, such as it is, is plentiful.
食物不是很好，但量很多。
You may use my bike, such as it is.
尽管我的自行车不好，你可以将就着用吧。
二、such as 与其他相似结构的区别
such…as与such…that
such ... as 前者用于引导定语从句，such ... that 后者用于引导结果状语从句。如：
Ive never heard such stories as he tells.
我从未听过他讲那样的故事。
It was such a cold day that there was nobody on the street.
天气很冷，街上没有一个人。
试比较：
He is such a good teacher as we all respect.
他是一位我们大家都尊敬的好老师。(as引导的是定语从句，as 在该定语从句中用作respect的宾语)
He is such a good teacher that we all respect him.
他是那样一位好老师,以致于我们大家都尊敬他。(that 引导的是结果状语从句，that在该状语从句中不充当句子成分，另外注意句中的respect带有宾语him)