1、1as 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 doesnt speak English asso 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“
2、 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 writin
3、g 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
4、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
5、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。 2As is well known，oceans cover more than 70 of the earth We have found such materials as a
6、re used in their factory.五、 含 as 的固定词组的用法 1as soon as 作“ 一就” 解，引导时间状语从句。 As soon as I get to Beijing，Ill write to you 2asso long as 作“只要”解，As So long as you study hard，youll make progress只要你努力，你就会取得进步。 3as ifthough 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。She loves the child as ifthough he were he
7、r own As ifthough 也可用来引导表语从句，常用在 “It appearslooksseems +as ifthough” 句型结构中。 It appears as ifthough it is going to clear up It seems as ifthough he knew nothing about it.他好像对此事一无所知。 4as to, as for, 作“ 关于，至于”解。as with “和也一样” eg； There is no doubt as to/for his honesty as with (1)=as is often the case
8、with.“那对是常有的事” e.g. As with young birds, the time comes for the young to leave. (2)=as its the same with.“正如一样” e.g. As with running, learning English needs will.正如跑步一样，学习英语需要意志。5as 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。 6soas far as I know 作“就我
9、所知”解，在句中作插入语。eg： As So far as I know，he will come here next Monday 7as 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。 as well as , 并列连词, 连接并列成分 .eg：Come early，and bring your brother as well早点来，把你的弟弟也带来。 He can speak English as w
10、ell as French.他会说英语和法语9so 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)10as, so 像那样， 也就；随着，也就As you sow,so will you reap. 种瓜得瓜，种豆得豆。11as a matter of fact(其实),as a whole, as a rule, as usual, as it is/was(事实上/既然如此), as it were(似乎；可以说是)；as good as （和一样好；几乎；
11、差不多）等12、sothat; suchthat 的用法1、so + 形容词 /副词 + that + 从句，如： 3This story is so interesting that I want to read it again. He spoke so quickly that I couldnt follow him. 2、so+形容词/副词+a/an+ 单数可数名词+that+从句She is so lovely a girl that everyone loves her.3、such+a/an+形容词+单数可数名词+that+从句，如： She is such a lovely
12、girl that everyone loves her.4、such(+adj.)+ 复数可数名词 /不可数名词+that+从句，如： He showed such concern that people took him to be a relative.(take sb. to be 或 take sb. as 把某人看作)巩固练习1. Our neighbor has _ ours.（北京 2003）A. as a big house as B. as big a house asC. the same big house as D. a house the same big as2.
13、 What a table! Ive never seen such a thing before. It is _ it is long. A. half not as wide as B. wide not as half asC. not half as wide as D. as wide as not half3. Id like to arrive 20 minutes early _ I can have time for a cup of tea.A. as soon as B. as a result C. in case D. so that4. The more I th
14、ink about him, the more reasons I find for loving him _ I did.（A. as much as B. as long as C. as soon as D. as far as 5. John is the tallest boy in the class, _ according to himself. (安徽 2005) （ five foot/feet eight 五英尺八英寸）A. five foot eight as tall as B. as tall as five foot eightC. as five foot ei
15、ght tall as D. as tall five foot eight as6. Did you take enough money with you?No. I needed _ I thought I would.（2006 全国 II）A. not so much as B. as much as C. much more than D. much less than7. My English teachers humor was _ make every student burst into laughter. A. so as to B. such as to C. such
16、that D. so that8、They play all kinds of instruments and sing _.A. also B. either C. as well D. as well as9. Tom, _ Jane and Rose, _ going to the farm on foot.A. as long as；is B. as well as；are C. as long as； are D. as well as；is10. They travel at full speed by day _ .A. and night B. and by night as well as C. as well at night D. as well as by night11. Mrs Black writes _, if not better than，her husband.A. as well as B. so well C. so well D. as well参考答案：BCDAB ABCDD A
