當前位置

首頁 > 英語詞彙 > 英語單詞 > as的用法說明

as的用法說明

推薦人: 來源: 閱讀: 1.71W 次
padding-bottom: 133.33%;">as的用法說明
as有同樣地,一樣地, 例如的意思,as動詞的用法你知道嗎?和本站小編一起來看看吧。  as動詞用法說明如下:  as這個詞看似簡單,但用法卻是很多的,對它的正確理解關係到英語應用能力的提高,因此我們有必要對其用法和搭配進行詳細闡述。  一、as作介詞  1. 區別as和like  as作爲介詞時,可以表示“像……”,這時它可以和like互用;as還可以表示“以……身份”或“作爲……”,“當作……”,但like不能。  e.g. I) They lived and fought among the people as “fish in water”. (as相當於like)  II) As a scientist, he was dedicated to (致力於) the truth. (這裏不可以用like)  II) They talked as old friends. (他們確乎是老朋友。)  à They talked like old friends. (他們像老朋友一樣。)  2. as引導的介詞短語在句中可以充當:  a) 賓語補足語  e.g. I) She spoke of me as her dearest friend.  II) The plan struck me as very much worthwhile.  III) You mustn’t think of me as (being) unhappy.  b) 主語補足語  e.g. I) She is well-known as being very cheerful.  II) He is sometimes portrayed as belonging to another century.  III) That picture is looked upon as very valuable.  常用於這類結構的動詞有:accept, consider, describe, elect, interpret (理解), look upon, perceive, recognize, refer to, regard, see, strike, take, think of, treat, view等等。  二、as作連詞  1. 作“當……的時候”,引導時間狀語從句。注意與when、 while的用法區別。  A. when作"當……的時候"解,可以指較短的(一點)時間,也可指一段時間。  e.g. I) When he was at college, he could speak several foreign languages.  II) When the clock struck twelve, all the lights in the street went out.  B. while常表示一段較長的時間或一個過程,強調主句謂語動詞與從句謂語動詞同時發生。  e.g. work.while you work. Play while you play.  C. 但屬下列情形時,只用as, 而不用when或while。  1) 用於表示同一個人的兩種動作交替進行,指“一邊……,一邊……”。  e.g.I) The girl dances as she sings on the stage.  II) He looked behind from time to time as he went forward.  2)表示兩個同步發展的動作或行爲,譯爲“隨着……”。  e.g. I) As time went on / by, she became more and more worried.  II) As children get older, they become more and more interested in the things  around them.  3)表示兩個短促行爲或事件幾乎同時發生。  e.g. I) I thought of it just as you opened your mouth.  II) Just as the flying worm hit her face, she gave a loud cry.  4) 後接名詞表示某一年齡段時,用as。  e.g. As a young man, he was active in sports.  2. as=since, 作“既然”、“由於”解,引導原因狀語從句,常用來表示已爲人們所知或顯而易見的原因或理由。  e.g. I) As / Since you’re not feeling well, you may stay at home.  II) 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,引導方式狀語從句。  e.g. I) He speaks English as Americans do.  II) Remember, you must do everything as I do.  4. 用於...或not so/ ...中,前一個as是副詞,後一個as是連詞,引導比較狀語從句。  e.g. I) They helped the old man as often as possible.  II) I don’t speak English so / as well as he does.  5. 作“雖然”、“儘管”解,引導讓步狀語從句。常用倒裝語序,即adj. /adv. / n.+ as +主語+謂語+主句。  e.g. I) Tired as they were, they walked on.  II) Child as he is, he knows a lot. (child前不用冠詞)  6.as引導類比從句,與so 連用,表示“正如……所以……”。  e.g. Just as French people enjoy their wine, so the British enjoy their beer.  如同法國人喜歡他們自產的葡萄酒一樣,英國人喜歡他們自產的啤酒。  三、as作副詞  1.表示同等程度、質量、數量等,作“一樣地……”解釋。  e.g. I) Steve runs fast, but I run just as fast.  史蒂夫跑的很快,但是我跑的和他一樣快。  II) Tom has a lot of money, but I don’t have as much.  湯姆有很多的錢,而我的錢沒有他多。  2.用在形容詞或者-ed形式的過去分詞前,相當於形容詞或過去分詞作定語,但as仍然保留其原來的詞彙意義。  e.g. I) In the dead of night I was suddenly wakened by a cry as made by a wolf.  在寂靜的黑夜裏,我突然聽到了一聲如同狼嚎一樣的叫聲。  II) The old man began to describe the accident as seen through the eyes of a witness.  這位老人開始描述這一起事故,如同是一個證人親眼目睹了一般。  四、作as作關係代詞,引導定語從句,不僅可以代替一個名詞,而且可以代替整個句子或一件事,通常譯作 “正如這一點”,“如……一樣”。  e.g. I) As is known to everybody, the moon travels around the earth once every month.  如同大家所知道的一樣,月亮每月圍繞地球旋轉一次。  II) As has been said before, grammar is not a set of dead rules.  如同以前說過的一樣,語法並不是一套死規則。  III) Such a clever girl as she can learn anything quickly.  像她這樣聰明的女孩子學任何東西都很快。  IV) It was absolutely bad manners to get into people’s room without knocking, as quite a few young people are doing every day.  不敲門就進入別人的房間絕對是不文明的行爲,現在很多年輕人每天都這麼幹。  五、as構成的固定詞組  1.as可以構成介詞詞組:  as against(與……相比);as compared with(與……對比);as for / to(至於,關於);as from / of(自……起);as a result of(由於……的結果);as regards(至於);  e.g. I) The output amounts to ten thousand dollars as against eight thousand last year.  和去年八千美元的產量相比,今年的產量達到了一萬美元。  II) There is no doubt as to who will be elected.  至於誰會當選,這是毫無疑問的事。  III) As a result of your carelessness, the whole project should be put off at least one month.  由於你的粗心,整個計劃將要被推遲至少一個月。  2.as可以構成副詞詞組:  as above(如上);as a matter of fact(事實上);as a whole(就整體來說);as follows(如下);as good as(和……幾乎一樣,實際等於);as such(照其資格,其本身);such / so … as to(這樣的……以至於……);as yet(尚,至今還)(用於否定句);as well(也);  e.g. I) As a matter of fact, he didn’t have any interest in the project.  事實上,他對這個項目一點興趣都沒有。  II) I am not so foolish as to make such a promise.  我還沒有愚蠢到會許下這樣的承諾的地步。  III) We are as good as ruined.  我們幾乎要崩潰了。  3.as構成詞組作關係代詞:  as … go(就……一般情況來說);as it is / was(事實上,按現狀);as it were(好像是);  e.g. I) He is quite good, as boys go. 就一般男孩子而言,他已經很好了。  II) I thought conditions would get better, but as it was, they were getting worse.  我以爲情況會好轉,但事實上,卻是越來越糟糕。  4.as可以構成連詞詞組:  according as(根據,按照……而);in as (so) far as(根據……程度);  e.g. I) You may go or stay, according as you decide.  你可以自己決定是去還是留。  II)In as (so) far as we have known about the matter, we can make a decision after the meeting. 就我們對這件事情的瞭解程度,我們可以在會後作出一個決定。