as 的用法.doc

As的用法小结一as可用作连词，引导比较、时间、原因、让步及方式五种状语从句，应注意的是，引导的比较状语从句往往有省略；引导的时间状语从句一般用一般现在时而不用一般将来时；引导原因状语从句时与“Because”和“since”引导的从句比较起来语气最弱。 1引导时间状语从句意思为一边-一边. 随着-的发展The girl sings as she goes to school. He looked behind occasionally as he went forward in the forestAs time went on / by, she became more and more beautiful . As children get older, they become more and more interested in everything.As time went by, we found he was an honest man.As he grew older, he lost interest in everything except gardening.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 hes been ill for ages, I will help him. As / Since youre not feeling well, you may stay at home. As he wasnt ready , 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: Do as I told you. Remember, you must do everything as I do. When in Rome, do as the Romans do. Leave the table as it is.那桌子就那样吧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。I dont speak English so/ as well as she does. as carefully as you can 尽可能认真地 as careful as you can 尽可能认真5. 表示虽然,尽管 等,引导让步状语从句, 引导让步状语从句，通常可与although或though通用，但语序不同，although或though用于句首，as用于倒装结构。例如：Young as I am, I already know what career I want to follow. /Although（或Though）I am young, I already know what career I want to follow.as倒装语序, 将从句的表语、状语或动词前置。如果表语有冠词a/an, 需去掉 如: Young as he is, he knows much. Tired as they were, they walked on. / Try as he would, he couldnt open the door.Great scholar as he is, he is lacking in common sense.Much as I like you, I couldnt live with you. 6. 表示也-一样。 She is a doctor, as was her husband. 二 as作关系代词as 的用法：其通常和such the sameasso连用，代指物在从句中做主语或宾语 This is the same pen as I bought yesterday。这种笔和我昨天买的笔一样。This is the same pen that I used yesterday.这就是昨天我使用的那一支钢笔I studied in the same school as she did in Beijing.我和他在北京的同一所学校就读。I want to have such a dictionary as he has. 我想要一本和他的一样的字典。Its the same person as we wanted to find yesterday我们昨天要找的是同一个人。Such girls as he knows are good at English .他所认识的女孩都擅长英语。Do you have such books as we like ?你有我们喜欢那种书吗？She will marry as healthy a man as she can find .给她能找到的任何一个有钱人I was reading the same book as he bought yesterday.He will marry as pretty a girl as he can find.My hometown is no longer the same as it used to be. He has so difficult a problem , as none of us can solve .as有正如 正像 这一点 这一事实 那一情况的意思 He is very careful, as we all know. As is well-known, Taiwan belongs to China. The Pacific is the largest ocean, as we all know. 正如我们所知到的，太平洋是最大的洋As we expect, we won the game.正如我们预料的一样，我们赢了The earth is round, as we all know. 地球是圆的，这一点我们都知道。引导非限制性定语从句的as在从句中做know的宾语，其代指整个主句。 As is known to all, he is the best student in our class. 众所周知，他是我们班上最好的学生。（正如我们所知到的一样，他是我们班上最好的学生。引导非限制性定语从句的as在从句中做主语，其代指整个主句。 As is often the case , we have worked out the production plan.我们已经制定了生产计划，这是常有的情况。As is reported in the newspapers, talks between the two countries are making progress.正如报纸上报导的那样，两国之间的谈判取得了进展。As usually happen, as is announced/expected/known/imagined/saidAs is reported/pointed out /shown/mentioned/discussed, 三as作介词，意思时“作为”，“以身份” 像一样,如 例如： He came to China as a tourist five years ago. He dressed as a policeman. I found a job as a guide. be known/famous asas in Australia“和在澳大利亚一样”。 They got united as one man./She spoke of me as her dearest friend. As a child, she was sent to abroad. As a League member, you should think more of others./After graduating from the college, he firstly worked as a clerk in a big company.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 Party member, Ill take the lead in everything. (状语) She works as a model. (状语) She has me as one of her best friends.(引起宾语补足语) think of /look on / regard/ treat/ consider/seeas把当作其中consider.as.中的as可以省略 四 as做副词修饰形容词或副词，表示程度，意为“同样地”。例如：He swims fast, but I swim just as fast. This dress is twice as expensive as that one.As before, he remained unmoved. as +adj(原级)+as as +adv(原级)+as，not as.as.。此结构中第一个as是副词，第二个as是连词。否定结构中的副词as可以由so代替。as.as possible和as.as one can也属于这种用法。例如：It is generally believed that teaching is as much an art as it is a science./The movie was not as good as I had expected./I play tennis as well as him.五、 用在习语中的asas soon as “一就”，引导时间状语从句immediately, the moment, the minute, the instance ；as（或so） long as “只要”，引导条件状语从句；as if/though “好像，仿佛”，引导方式状语从句或表语从句；as to（或as for） “至于，就而言”；as much（或many） as“多达”；as far as I know（据我所知）, as far as I am concerned（就我而言，依我看来）,as a result（结果）, as a result of “（由于的）结果”； as soon as possible （尽可能快地） as early as possible （尽可能早的） as carefully as you can （尽可能认真地） as careful as you can（ 尽可能认真）as a matter of fact“事实上”；as well “也，还”；might as well（不妨， 倒不如，最好）, A as well as B“不但A而且B”；as it is“照现状看，看样子”as the saying goes常言道， as we all know= as is known to all 众所周知,as we had expected正如我们所料,as is often the case这是常有的情况, as has been said above正如上面所说, as anyone can see正如每个人看到的那样, as usually happen正如常发生的那样as is expected/said/reported/shown/known/announced /mentioned/discussed正如所料/正如所说/正如所报道的/正如所展示的/正如所通知的/正如提到的/正如所讨论的You might as well take a morning flight.你不妨搭早班飞机。You might as well get used to that idea now.你爽性习惯,现在的想法.She said I might as well ask him.她说我无妨问问他。He behaved as if nothing had happened. So long as I live, I must study.只要还活着，我就要学习。There is hope so long as he is with us.只要他在就有希望。So long as he didnt lie.只要他不撒谎就没事。You may stay here so long as you keep quiet.只要保持安静，你可以留在这。As soon as he finishes his class work, he runs out of the class. 他一做完课堂作业，就跑出了教室。1 I would like a job which pays more, but _ I enjoy the work Im doing at the moment.A. in other wordsB. on the other handC. for one thingD. as a matter of fact 2People should stop using their cars and start using public transport. _. The roads are too crowded as it is.A. All right B. ExactlyC. Go ahead D. Fine3Maggie has been fortunate to find a job she loves and, _, she gets well paid for it.A. sooner or laterB. whats moreC. as a resultD. more or