as的用法总结7种
as只有作副词、介词、连词、代词等四大用法，具体用法如下：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。
as as的用法总结？
1、as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。2、as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。3、as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。4、as做连词，引导让步状语从句，意思是“虽然”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。5、as做连词，引导方式状语从句，意思是“以……方式”例句：Do as the Romans do when in Rome. 入乡随俗6、as做关系代词，引导定语从句例句：This is the same game as I played yesterday.这和我昨天玩的游戏一样。
