关于as的用法 关于介词as的用法
as\u4e5d\u5927\u7528\u6cd5as\u53ea\u6709\u4f5c\u526f\u8bcd\u3001\u4ecb\u8bcd\u3001\u8fde\u8bcd\u3001\u4ee3\u8bcd\u7b49\u56db\u5927\u7528\u6cd5\uff0c\u5177\u4f53\u7528\u6cd5\u5982\u4e0b\uff1a
\u4e00\uff09as\u4f5c\u526f\u8bcd\uff0c\u8868\u793a\u7a0b\u5ea6\uff0c\u610f\u4e3a\u201c\u540c\u6837\u5730\u201d\u3002\u5728\u201cas\uff0e\uff0e\uff0eas\uff0e\uff0e\uff0e\u201d\uff0c\u201cnot as\uff0e\uff0e\uff0eas\uff0e\uff0e\uff0e\u201d\u7ed3\u6784\u4e2d\u7684\u7b2c\u4e00\u4e2aas\u662f\u526f\u8bcd\uff0c\u4f5c\u201c\u548c\uff0f\u4e0e\uff0e\uff0e\uff0e(\u4e0d)\u4e00\u6837\u201d\u89e3\u3002eg\uff1aJack is as tall as his father\uff0e\u6770\u514b\u548c\u4ed6\u7684\u7236\u4eb2\u4e00\u6837\u9ad8\u3002He doesn't speak English as\uff0fso fluently as you\uff0e\u4ed6\u7684\u82f1\u8bed\u8bf4\u5f97\u4e0d\u5982\u4f60\u6d41\u5229\u3002\u4e8c\uff09as\u4f5c\u4ecb\u8bcd\u30021\uff0e\u4f5c\u201c\u5982\uff0c\u50cf\u201d\u89e3\u3002eg\uff1aThey got united as one man\uff0e\u4ed6\u4eec\u56e2\u7ed3\u5f97\u50cf\u4e00\u4e2a\u4eba\u4e00\u6837\u30022\uff0e\u4f5c\u201c\u5145\u5f53\uff0c\u4f5c\u4e3a\u201d\u89e3\u3002eg\uff1aAs a writer\uff0che was famous\uff0e\u4f5c\u4e3a\u4f5c\u5bb6\uff0c\u4ed6\u662f\u5f88\u6709\u540d\u7684\u3002\u4e09\uff09as\u4f5c\u8fde\u8bcd\uff0c\u5e38\u7528\u6765\u8fde\u63a5\u4e3b\u53e5\u548c\u72b6\u8bed\u4ece\u53e5\u30021\uff0e\u5f15\u5bfc\u65f6\u95f4\u72b6\u8bed\u4ece\u53e5\uff0c\u4f5c\u201c\u5f53\uff0e\uff0e\uff0e\u7684\u65f6\u5019\u201d\u89e3\uff0c\u6709\u201c\u968f\u7740\uff0e\uff0e\uff0e\u201d\u4e4b\u610f\uff0c\u4e0ewhile\u610f\u4e49\u76f8\u8fd1\uff0c\u5f3a\u8c03\u4e24\u4e2a\u52a8\u4f5c\u540c\u65f6\u53d1\u751f\uff1b\u6216\u67d0\u4e8b\u4e00\u53d1\u751f\uff0c\u53e6\u4e00\u4e8b\u7acb\u5373\u53d1\u751f\u3002eg\uff1aHe shouted aloud as her ran along\uff0e\u4ed6\u4e00\u8fb9\u5f80\u524d\u8dd1\uff0c\u4e00\u8fb9\u9ad8\u58f0\u5730\u547c\u558a\u3002I was startled as he opened the door\uff0e\u4ed6\u4e00\u5f00\u95e8\uff0c\u6211\u5413\u4e86\u4e00\u8df3\u3002as\u4f5c\u8fde\u8bcd\uff0c\u76f8\u5f53\u4e8ewhen\u3002eg\uff1bAs a little boy (When he was a little boy)he began to learn to play piano\uff0e\u4ed6\u5c0f\u65f6\u5019\u5c31\u5f00\u59cb\u5b66\u5f39\u94a2\u7434\u30022\uff0e\u5f15\u5bfc\u539f\u56e0\u72b6\u8bed\u4ece\u53e5\uff0c\u4f5c\u201c\u56e0\u4e3a\uff0c\u7531\u4e8e\u201d\u89e3\uff0c\u4e0ebecause\u7684\u7528\u6cd5\u76f8\u8fd1\u3002eg\uff1bI must stop writing now\uff0cas I have rather a lot of work to do\uff0e\u6211\u5fc5\u987b\u505c\u7b14\u4e86\uff0c\u56e0\u4e3a\u6211\u8fd8\u6709\u8bb8\u591a\u5de5\u4f5c\u8981\u505a\u30023\uff0e\u5f15\u5bfc\u65b9\u5f0f\u72b6\u8bed\u4ece\u53e5\u6216\u6bd4\u8f83\u72b6\u8bed\u4ece\u53e5\uff0c\u4f5c\u201c\u6b63\u5982\uff0c(\u5982)\u50cf\u201d\u89e3\u3002\u4f8beg\uff1aAs in your country\uff0cwe grow wheat in the north and rice in the south\uff0e\u6b63\u5982(\u50cf)\u4f60\u4eec\u56fd\u5bb6\u4e00\u6837\uff0c\u6211\u4eec\u5728\u5317\u65b9\u79cd\u5c0f\u9ea6\uff0c\u5728\u5357\u65b9\u79cd\u5927\u7c73\u3002(\u65b9\u5f0f\u72b6\u8bed\u4ece\u53e5)When at Rome\uff0cdo as Romans do\uff0e\u5165\u4e61\u968f\u4fd7\u3002(\u65b9\u5f0f\u72b6\u8bed\u4ece\u53e5)4\uff0e\u5f15\u5bfc\u8ba9\u6b65\u72b6\u8bed\u4ece\u53e5\uff0c\u4f5c\u201c\u867d\u7136\uff0c\u5c3d\u7ba1\u201d\u89e3\u3002\u8fd9\u65f6\u4ece\u53e5\u5e38\u7528\u5012\u88c5\u8bed\u5e8f\uff0c\u5373\u628a\u4ece\u53e5\u4e2d\u7684\u8868\u8bed\u3001\u72b6\u8bed\u6216\u52a8\u8bcd\u539f\u5f62\u653e\u5728as\u4e4b\u524d\u3002eg\uff1bStrange as it may seem\uff0cit is true\uff0e\u5c3d\u7ba1\u8fd9\u4e8b\u770b\u4e0a\u53bb\u5f88\u5947\u602a\uff0c\u4f46\u5374\u662f\u771f\u7684\u3002Try as he might\uff0cTom could not get out of the difficulties\uff0e\u4e0d\u7ba1\u600e\u6837\u52aa\u529b\uff0c\u6c64\u59c6\u8fd8\u662f\u6446\u8131\u4e0d\u4e86\u56f0\u5883\u3002\u56db\uff09as\u4f5c\u5173\u7cfb\u4ee3\u8bcd\u30021\uff0e\u5f15\u5bfc\u9650\u5236\u6027\u5b9a\u8bed\u4ece\u53e5\uff0c\u7528\u5728\u201csuch\uff0e\uff0e\uff0eas\u201d,\u201cthe same\uff0e\uff0e\uff0eas\u201d\uff0c\u201cas\uff0e\uff0e\uff0eas\u201d\u7b49\u7ed3\u6784\u4e2d\uff0c\u5e38\u8bd1\u4f5c\u201c\u50cf\uff0e\uff0e\uff0e\u4e00\u6837\u7684\u4eba(\u6216\u7269)\u201d\uff0c\u201c\u51e1\u662f\uff0e\uff0e\uff0e\u7684\u4eba(\u6216\u7269)\u201d\u3002\u4f8beg\uff1aHe wished to be such a man as Lei Feng was\uff0e\u4ed6\u66fe\u5e0c\u671b\u505a\u4e00\u4e2a\u50cf\u96f7\u950b\u90a3\u6837\u7684\u4eba\u3002My hometown is no longer the same as it was\uff0e\u6211\u7684\u5bb6\u4e61\u518d\u4e5f\u4e0d\u50cf\u8fc7\u53bb\u4e00\u6837\u4e86\u30022\uff0e\u5f15\u5bfc\u975e\u9650\u5236\u6027\u5b9a\u8bed\u4ece\u53e5\uff0c\u7528\u6765\u6307\u4ee3\u5b83\u524d\u9762\u7684\u6574\u4e2a\u53e5\u5b50(\u5373\u5148\u884c\u53e5)\uff0c\u610f\u601d\u662f\u201c\u8fd9\u4e00\u70b9\u201d\u3002\u8fd9\u4e2a\u5206\u53e5\u53ef\u4ee5\u4f4d\u4e8e\u53e5\u9996\u3001\u53e5\u4e2d\u6216\u53e5\u672b\u3002eg\uff1aAs is well known\uff0coceans cover more than 70\uff05 of the earth\uff0e\u6211\u4eec\u77e5\u9053\uff0c\u6d77\u6d0b\u5360\u5730\u7403\u9762\u79ef\u7684\u767e\u5206\u4e4b\u4e03\u5341\u4ee5\u4e0a\u3002
\u6269\u5c55\u8d44\u6599\uff1a
\u7f29\u5199\u4e3aAS\u7684\u5355\u8bcd
1. =Anglo-Saxon \u76ce\u683c\u9c81-\u6492\u514b\u900a\u4eba;\u76ce\u683c\u9c81-\u6492\u514b\u900a\u8bed;\u76ce\u683c\u9c81-\u6492\u514b\u900a\u4eba\u7684;\u76ce\u683c\u9c81-\u6492\u514b\u900a
\u8bed\u7684
2. =antisubmarine \u53cd\u6f5c\u8247\u7684
3. =Asia \u4e9a\u6d32;\u4e9a\u7ec6\u4e9a
4. =Asian \u4e9a\u6d32\u7684;\u4e9a\u6d32\u4eba;\u4e9a\u6d32\u4eba\u7684
\u53c2\u8003\u8d44\u6599\u6765\u6e90\uff1a\u767e\u5ea6\u767e\u79d1\uff1aAS
\u4e00\uff0c\u526f\u8bcdadv\uff1a
1. \u8ddf...\u4e00\u6837\u5730,\u540c\u6837\u5730 \u4f8b\u5982:I'm as tall as him \u6211\u548c\u4ed6\u4e00\u6837\u9ad8\u3002
2. \u5982\u540c;\u4f8b\u5982 \u4f8b\u5982:There are lots of famous buildings as the Eiffel Tower and the Arch of Triumph. \u8fd9\u91cc\u6709\u8bb8\u591a\u8457\u540d\u5efa\u7b51\u5982\u57c3\u83f2\u5c14\u94c1\u5854\u548c\u51ef\u65cb\u95e8\u3002
\u4e8c\uff0c\u4ecb\u8bcdprep\uff1a
1. \u4f5c\u4e3a,\u4ee5...\u7684\u8eab\u4efd \u4f8b\u5982:He works as a tour guide. \u4ed6\u4f5c\u4e3a\u5bfc\u6e38\u5de5\u4f5c\u3002
2. \u5f53\u4f5c \u4f8b\u5982:She is a famous person as a actress. \u4f5c\u4e3a\u4e00\u4e2a\u5973\u6f14\u5458,\u5979\u5f88\u51fa\u540d
3. \u50cf;\u5982\u540c \u4f8b\u5982:The old woman was dressed as a young lady. \u8fd9\u4f4d\u8001\u5987\u4eba\u6253\u626e\u5f97\u50cf\u4e00\u4f4d\u5e74\u8f7b\u4eba\u3002
\u4e09\uff0c\u8fde\u63a5\u8bcdconj\uff1a
1. \u50cf...\u4e00\u6837\uff1b\u4f9d\u7167\uff1b\u50cf \u4f8b\u5982:You ought to do as Paul tells you. \u4f60\u5e94\u6309\u7167\u4fdd\u7f57\u5429\u5490\u7684\u505a\u3002
2. \u5f53...\u65f6 \u4f8b\u5982:As she was leaving the room she remembered that book. \u5979\u79bb\u5f00\u623f\u95f4\u65f6\u60f3\u8d77\u4e86\u90a3\u672c\u4e66\u3002
3. \u968f\u7740 \u4f8b\u5982:As the sun rose the fog dispersed. \u592a\u9633\u4e00\u51fa\u6765,\u96fe\u968f\u4e4b\u6d88\u5931\u3002
4. \u56e0\u4e3a \u4f8b\u5982:We didn't know what to do as we were just visiting there. \u6211\u4eec\u4e0d\u77e5\u9053\u8be5\u600e\u4e48\u529e\uff0c\u56e0\u4e3a\u5f53\u65f6\u6211\u4eec\u4ec5\u4ec5\u5728\u90a3\u91cc\u4f5c\u8bbf\u95ee\u3002
5. \u867d\u7136 \u4f8b\u5982:Tired as he was, he stayed up late. \u4ed6\u867d\u7136\u75b2\u5026\uff0c\u53ef\u4ecd\u7136\u5f88\u665a\u624d\u7761\u3002
6.\u5c3d\u7ba1 \u4f8b\u5982\uff1aTry as she might,Sue couldn't get the door open.\u5c3d\u7ba1\u60f3\u5c3d\u4e00\u5207\u529e\u6cd5\uff0c\u82cf\u8fd8\u662f\u4e0d\u80fd\u6253\u5f00\u90a3\u6247\u95e8
\u56db\uff0c\u4ee3\u8bcdpron:
1. (\u4e0esuch,the same,as\u7b49\u8fde\u7528,\u5f15\u5bfc\u5173\u7cfb\u4ece\u53e5)\u4e0e...\u76f8\u540c\u7684\u4e8b\u7269(\u6216\u4eba) \u4f8b\u5982:He has
earned as much money as I have. \u4ed6\u8d5a\u7684\u94b1\u548c\u6211\u8d5a\u7684\u4e00\u6837\u591a\u3002
2. (\u5f15\u5bfc\u4ece\u53e5,\u5bf9\u524d\u8ff0\u5185\u5bb9\u4f5c\u8865\u5145)\u672c\u60c5\u51b5,\u8be5\u4e8b\u5b9e \u4f8b\u5982:She has married again, as was
expected. \u5979\u5df2\u518d\u5a5a,\u8fd9\u662f\u610f\u6599\u4e2d\u7684\u4e8b\u3002
\u4e94\uff1a\u7f29\u5199\u8bcdabbr\uff1a
1. =Anglo-Saxon \u76ce\u683c\u9c81-\u6492\u514b\u900a\u4eba;\u76ce\u683c\u9c81-\u6492\u514b\u900a\u8bed;\u76ce\u683c\u9c81-\u6492\u514b\u900a\u4eba\u7684;\u76ce\u683c\u9c81-\u6492\u514b\u900a\u8bed\u7684
2. =antisubmarine \u53cd\u6f5c\u8247\u7684
3. =Asia \u4e9a\u6d32;\u4e9a\u7ec6\u4e9a
4. =Asian \u4e9a\u6d32\u7684;\u4e9a\u6d32\u4eba;\u4e9a\u6d32\u4eba\u7684
\u516d\uff0c\u524d\u7f00:=ad \u7528\u4e8es\u524d
\u6269\u5c55\u8d44\u6599\uff1a\u82f1\u8bed\u4e2das\u2026\u2026as\u7684\u7528\u6cd5:
(1) \u5728\u5426\u5b9a\u53e5\u4e2d\uff0c\u7b2c\u4e00\u4e2a as \u4e5f\u53ef\u6362\u6210 so\u3002
(2) \u5728\u8be5\u7ed3\u6784\u7684\u4e24\u4e2aas\u4e4b\u95f4\u901a\u5e38\u63a5\u5f62\u5bb9\u8bcd\u6216\u526f\u8bcd\u7684\u539f\u7ea7\uff0c\u4f46\u82e5\u6d89\u53ca\u6570\u91cf\u6216\u7a0b\u5ea6\uff0c\u53ef\u7528\u201cas much+\u4e0d\u53ef\u6570\u540d\u8bcd+as\u201d\u548c\u201cas many+\u590d\u6570\u540d\u8bcd+as\u201d\u3002
I haven\u2019t got as much money as I thought. \u6211\u4e0d\u50cf\u539f\u6765\u60f3\u50cf\u7684\u6709\u90a3\u4e48\u591a\u94b1\u3002
(3) \u7b2c\u4e8c\u4e2aas\u540e\u63a5\u4ece\u53e5\u65f6\uff0c\u8be5as\u901a\u5e38\u4e3a\u8fde\u8bcd\uff0c\u4f46\u6709\u65f6\u8fd9\u4e2aas\u8fd8\u5145\u5f53\u5176\u540e\u4ece\u53e5\u7684\u4e3b\u8bed\u6216\u5bbe\u8bed\uff0c\u6b64\u65f6\u8be5as\u5b9e\u4e3a\u5173\u7cfb\u4ee3\u8bcd\u3002\u5982\uff1a
I gave him as much as he could eat. \u4ed6\u80fd\u5403\u591a\u5c11\uff0c\u6211\u5c31\u7ed9\u4e86\u4ed6\u591a\u5c11\u3002
(4) \u8be5\u7ed3\u6784\u6839\u636e\u60c5\u51b5\u53ef\u7528\u4f7f\u7528\u4ee5\u4e0b\u4fee\u9970\u8bed\u3002\u5982\uff1a(not) nearly, almost, just, nothing like, exactly, not quite, half, one-ten, twice, three times, 30 per cent\u7b49\uff0c\u5e76\u4e14\u8fd9\u4e9b\u4fee\u9970\u8bed\u5fc5\u987b\u7f6e\u4e8e\u7b2c\u4e00\u4e2aas\u4e4b\u524d\uff0c\u800c\u4e0d\u80fd\u7f6e\u4e8e\u5176\u540e\u3002
\u53c2\u8003\u8d44\u6599\uff1a\u767e\u5ea6\u767e\u79d1-AS
一，副词adv：
1. 跟...一样地,同样地 例如:I'm as tall as him 我和他一样高。
2. 如同;例如 例如:There are lots of famous buildings as the Eiffel Tower and the Arch of Triumph. 这里有许多著名建筑如埃菲尔铁塔和凯旋门。
二，介词prep：
1. 作为,以...的身份 例如:He works as a tour guide. 他作为导游工作。
2. 当作 例如:She is a famous person as a actress. 作为一个女演员,她很出名
3. 像;如同 例如:The old woman was dressed as a young lady. 这位老妇人打扮得像一位年轻人。
三，连接词conj：
1. 像...一样；依照；像 例如:You ought to do as Paul tells you. 你应按照保罗吩咐的做。
2. 当...时 例如:As she was leaving the room she remembered that book. 她离开房间时想起了那本书。
3. 随着 例如:As the sun rose the fog dispersed. 太阳一出来,雾随之消失。
4. 因为 例如:We didn't know what to do as we were just visiting there. 我们不知道该怎么办，因为当时我们仅仅在那里作访问。
5. 虽然 例如:Tired as he was, he stayed up late. 他虽然疲倦，可仍然很晚才睡。
6.尽管 例如：Try as she might,Sue couldn't get the door open.尽管想尽一切办法，苏还是不能打开那扇门
四，代词pron:
1. (与such,the same,as等连用,引导关系从句)与...相同的事物(或人) 例如:He has
earned as much money as I have. 他赚的钱和我赚的一样多。
2. (引导从句,对前述内容作补充)本情况,该事实 例如:She has married again, as was
expected. 她已再婚,这是意料中的事。
五：缩写词abbr：
1. =Anglo-Saxon 盎格鲁-撒克逊人;盎格鲁-撒克逊语;盎格鲁-撒克逊人的;盎格鲁-撒克逊语的
2. =antisubmarine 反潜艇的
3. =Asia 亚洲;亚细亚
4. =Asian 亚洲的;亚洲人;亚洲人的
六，前缀:=ad 用于s前
扩展资料：
英语中as……as的用法:
(1) 在否定句中，第一个 as 也可换成 so。
(2) 在该结构的两个as之间通常接形容词或副词的原级，但若涉及数量或程度，可用“as much+不可数名词+as”和“as many+复数名词+as”。
I haven’t got as much money as I thought. 我不像原来想像的有那么多钱。
(3) 第二个as后接从句时，该as通常为连词，但有时这个as还充当其后从句的主语或宾语，此时该as实为关系代词。如：
I gave him as much as he could eat. 他能吃多少，我就给了他多少。
(4) 该结构根据情况可用使用以下修饰语。如：(not) nearly, almost, just, nothing like, exactly, not quite, half, one-ten, twice, three times, 30 per cent等，并且这些修饰语必须置于第一个as之前，而不能置于其后。
参考资料：百度百科-AS
一、 as作连词的用法:
1. 作"当……的时候",引导时间状语从句。注意与when、 while的用法区别。
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。如:
When he was at college, he could speak several foreign languages.
When the clock struck twelve, all the lights in the street went out.
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。如:
Work while you work. Play while you play.
③ 但属下列情形时,只用as, 而不用when或while。
A) 用于表示同一个人的两种动作交替进行,指"一边……,一边……"。如:
The girl dances as she sings on the stage.
He looked behind from time to time as he went forward.
B)表示两个同步发展的动作或行为,译为"随着……"。如:
As time went on / by, she became more and more worried.
As children get older, they become more and more interested in the things around them.
C)表示两个短促行为或事件几乎同时发生。如:
I thought of it just as you opened your mouth.
Just as the flying worm hit her face, she gave a loud cry.
D) 后接名词表示某一年龄段时,用as。如:
As a young man, he was active in sports.
2. as=since, 作"既然"、"由于"解,引导原因状语从句,常用来表示已为人们所知或显而易见的原因或理由。如:
As / Since you're not feeling well, you may stay at home.
As he wasn't ready in time, we went without him.
3. as=in the way that, 作"像"、"按照……的方式"解,引导方式状语从句。如:
He speaks English as Americans do.
Remember, you must do everything as I do.
4. 用于as...as...或not so/ as...as...中,前一个as是副词,后一个as是连词,引导比较状语从句。如:
They helped the old man as often as possible.
I don't speak English so/ as well as he does.
5. 作"虽然"、"尽管"解,引导让步状语从句。常用倒装语序,即adj. /adv. / n.+ as +主语+谓语+主句。如:
Tired as they were, they walked on.
Child as he is, he knows a lot. (child前不用冠词)
二、 as作关系代词,引导定语从句,作"正如"、"这一点"解。如:
He is very careful, as his work shows.
As is well-known, Taiwan belongs to China.
另外,当先行词被the same, such等词修饰时,常用as来引导定语从句。如:
Such a clever boy as he can learn anything quickly.
I was reading the same book as he bought yesterday.
三、 as作介词的用法:
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。如:
As a League member, I'll take the lead in everything. (状语)
She works as a doctor. (状语)
They have me as one of their own children.(引起宾语补足语)
as具体用法如下：
1.as用作副词时主要用来表示比较,意思是“像?一样；如同”。可以单独使用，但更多的是用在as...as结构中，其中第一个as是副词，其后可接形容词或副词,也可接其他成分，as前可有状语。第二个as可以是介词,也可以是连词。as用作副词时还可以指事物以同样的方式发生,意思是“和?一样”。
2.as 常做关系代词，如such children as love their books中的as是love的主语。
3.as还可表示原因,作“因为,既然”解，引导原因状语从句，表示不说自明的原因或理由，语气较轻，是附带提及，不加强调。as引导的从句可放在主句之前(表示原因不明显),也可放在主句之后(表示原因明显)。
as读音：英 [æz , əz] 美 [æz , əz]
释义：
1.prep.像;如同;作为;当作
例句：Nobody that I spoke to doubted his sincerity as a politician.
和我谈过话的人中没有一个怀疑他作为一个政治家的诚意。
2.adv.(比较时用)像?一样，如同;(指事情以同样的方式发生)和?一样
例句：Today, as usual, he was wearing a three-piece suit
像往常一样，他今天穿的是三件套。
3.conj.当?时;随着;照?方式;因为;由于
例句：She counted more than a dozen in plain sight as the steamer drew closer.
当轮船靠近时，她一眼就数出了十多艘来。
扩展资料
近义词：equally、though
一、equally读音：英 [ˈiːkwəli] 美 [ˈiːkwəli]
释义：adv.平等地;同样地;平均地;相等地;均等地;(引出同样重要的内容)同样，此外，也
例句：Team members contribute thoughts and share ideas equally.
团队成员平等地贡献思维和分享想法。
二、thoughthough读音：英 [ðəʊ] 美 [ðoʊ]
释义：
1.conj.虽然;尽管;即使;(用于主句后，引出补充说明，使语气变弱)不过，可是，然而
例句：I will say no more on these matters, important though they are
虽然这些事很重要，我也不想再说什么了。
2.adv.(尤用于句末补充说明，使语气减弱)不过，可是，然而
例句：I like him. Though he makes me angry sometimes
我喜欢他，不过他有时惹我生气。
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。
一、as作连词的用法
1. as...as的用法
as...as意为"和……一样"，表示同级的比较。使用时要注意第一个as为副词，第二个as为连词。其基本结构为：as+ adj./ adv. +as。例如：
(1)This film is as interesting as that one.这部电影和那部电影一样有趣。
(2)Your pen writes as smoothly as mine.你的钢笔书写起来和我的一样流畅。
其否定式为not as/so +adj./ adv. +as。例如：
This dictionary is not as/so useful as you think.这本字典不如你想象的那样有用。
若有修饰成分，如twice, three times, half, a quarter等，则须置于第一个as之前。例如：
Your bag is twice as expensive as mine.你的袋子比我的贵一倍。
几个关于as...as的常见句型：
(1)as...as possible
Please answer my question as soon as possible.请尽快回答我的问题。
(2)as...as usual/before
She looks as pretty as before.她看起来和以前一样漂亮。
(3)as long as... (引导条件状语从句)
It took us as long as three years to carry out the plan.我们花了长达三年的时间才完成这项计划。
(4)as far as
He walked as far as the railway station yesterday evening.昨天傍晚，他一直散步到火车站。
(5)as well as
She cooks as well as her mother does.她烧菜烧得跟她母亲一样好。
一些带有as...as结构的常见短语归纳：
as busy as a bee像蜜蜂一样忙碌
as easy as ABC像ABC一样容易
as deep as a well像井一样深
as light as a feather像羽毛一样轻
as soft as butter像黄油一样软
as rich as a Jew像犹太人一样富裕
2. as用作连词引导时间状语从句
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：用when时，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；用while时，从句的动作为一过程，主句动作与从句动作同时进行或在从句动作过程中发生；用as时，主句和从句的动作同时发生，具有延续的含义。例如：
(1)It was snowing when he arrived at the construction site.他到达工地时，天正在下雪。
(2)He was watching TV while his mother was cooking.他母亲做饭时他在看电视。
(3) You will grow wiser as you grow older.你会随着年龄的增长而越来越聪明。
3. as用作连词引导原因状语从句
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：
(1) He will succeed because he is in earnest.他一定会成功，因为他很认真。
(2) Since you are so sure of it he”ll believe you.既然你对此如此有把握，他会相信你的。
(3) As rain has fallen, the air is cooler.因为下过雨，空气比较清爽。
4. as作连词引导让步状语从句
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：
(1) Although he is quite old, he still jogs every day.他虽然年纪相当大，仍然每天慢跑。
(2) Strange as it may seem, nobody was injured in the accident.这次意外虽然显得令人不可思议，却没有人受伤。
(3) However hard he may try, he will not attain his goal.无论他怎样努力也达不到目标。
二、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 book as I read last week.这本书和我上周读的那本是一样的。
②用于such...as结构中
I don”t like such books as he recommends.我不喜欢他推荐的那些书。
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)
三、as作介词的用法
as作介词，意思是"作为"，"以……身份"。例如：
He came to China as a tourist five years ago.他五年前以游客的身份来过中国。
四、as作副词的用法
to the same degree or amount; equally "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。
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绛旓細1銆as鐢ㄤ綔杩炶瘝鏃讹紝鍙互鐢ㄦ潵琛ㄧず鏃堕棿锛岃瘧涓衡滄褰撯︾殑鏃跺欙紱闅忕潃鈥︼紱杈光﹁竟鈥︹濓紝寮曞鏃堕棿鐘惰浠庡彞銆備富鍙ュ彲浠ユ槸涓诲姩鍙ワ紝涔熷彲浠ユ槸琚姩鍙ャ2銆佸綋涓や釜涓昏鐨勫姩浣滄槸鍚屾椂鍙戠敓鐨勬椂鍊欙紝涓诲彞鍜屼粠鍙ョ殑璋撹鍔ㄨ瘝閮藉彲浠ョ敤杩涜鏃舵佹垨涓鑸紡锛屾棤璁哄姩浣滈暱鐭紱褰撲袱浠朵簨鍙戠敓鐨勬椂闂撮棿闅斿緢鐭紝鐢氳嚦娌℃湁鏃堕棿闂撮殧鏃讹紝涓诲彞鍜...
