![]() ![]() |
as用法歸納與小結(jié) |
作者:JDJ 文章來源:本站原創(chuàng) 點(diǎn)擊數(shù) 更新時(shí)間:2015-05-26 文章錄入:admin 責(zé)任編輯:admin |
|
as用法歸納與小結(jié) as 的基本意思: prep. 當(dāng)作,作為 conj. 正如,因?yàn)椋瘢凑眨m然 adv. 一樣,同樣 pron. 這一點(diǎn),凡…的 1. 用作連詞,表示讓步 (意為:雖然,盡管),要用于倒裝句,且倒裝后位于句首的名詞通常不用冠詞 (等于though, 但語氣稍弱): Child as [though] he was, he did quite well. 他雖是個(gè)孩子,但已干得很不錯(cuò)。 2. 用作關(guān)系代詞,主要用法有二: (1) 用在such, same, as等之后,引導(dǎo)限制性定語從句: This is the same watch as I lost. 這塊表跟我丟失的那塊一樣。 Such men as (=Those men who) heard of him praised him. 聽說過他的人都贊揚(yáng)他。 (2) 單獨(dú)用作關(guān)系代詞,引導(dǎo)非限制性定語從句,可放在主句之前 (常譯為:正如)或之后 (常譯為:這一點(diǎn)),且主從句之間一般要用逗號(hào)隔開: He was absent, as is often the case. 他缺席了,這是常有的事。 As was expected, he succeeded at last. 正如我們所料,他終于成功了。 3. 用來表示目的,下面兩種句子結(jié)構(gòu)都可以: 仔細(xì)寫以便把每句話都寫清楚。 正:Write carefully so as to make every sentence clear. 正:Write so carefully as to make every sentence clear. 4. 在正式文體 (尤其是文學(xué)體裁)中,as后可用倒裝語序表示“…也一樣”這類意思 (現(xiàn)代英語通常so表示這一用法): He travelled a great deal, as did most of his friends. 他去過許多地方旅游,他的多數(shù)朋友也是一樣。 He plays the piano, as does his mother. 他會(huì)彈鋼琴,他母親也會(huì)。 注:用作連詞,表示原因 (參見because),表示時(shí)間 (參見when)。 5. 用于 as if / as though, 意為“仿佛”、“似乎”。兩者一般可通用 (但注意不能說 as although)。用法上注意幾點(diǎn): (1) as if [though] 可引導(dǎo)狀語從句和表語從句,從句謂語根據(jù)語義的要求,可用陳述語氣 (若可能為事實(shí))或虛擬語氣 (若為假設(shè)或不太可能是事實(shí)): It looks as if it is going to rain. 天似乎要下雨了。 It seems as if you’re right. 似乎你是對(duì)的。 He talks as though he knew everything. 他夸夸其談,好像無所不知。 When a pencil is partly in a glass of water, it looks as if it were broken. 當(dāng)把一支鉛筆的一部分放在一杯水里時(shí),它看起來好像折斷了似的。 當(dāng)主句謂語是過去時(shí)態(tài)時(shí),從句謂語常可用陳述語氣: He paused as though he found a difficulty. 他停了下來,似乎遇到了一個(gè)難題。 She felt as if she lost something. 他覺得似乎丟了什么東西。 (2) 當(dāng)從句主語與主句主語一致,且從句謂語中又包括有動(dòng)詞be時(shí),從句主語及其謂語中的動(dòng)詞be通常可以省去: From time to time he turned round as though (he was) searching for someone. 他不時(shí)地四下張望,好像在找人。 He opened his mouth as if (he was) to speak. 他張開口,好像要說話似的。 6. 關(guān)于 as…as, 用法注意: (1) 中間只能用形容詞或副詞的原級(jí),不能用比較級(jí)或最高級(jí)。如果在第二個(gè)as之后使用獨(dú)立的人稱代詞,一般說來用主格 (較正式)或賓格 (非正式)均可: He’s as old as she her. 他年紀(jì)跟她一樣大。 注意:要是第二個(gè)as之后的人稱代詞跟有謂語動(dòng)詞,則該人稱代詞只能用主格: He is as old as she is. 但是有時(shí)用主格或賓格含義差別很大: You love him as much as I (=as I love him). 你愛他像我愛他一樣。 You love him as much as me (=as you love me). 你愛他像愛我一樣。 (2) 在肯定句中用as…as, 在否定句中用not as…as或not so…as 均可: He doesn’t study as [so] hard as his brother. 他學(xué)習(xí)不如他弟弟努力。 (3) 要注意比較對(duì)象的一致性,即比較的雙方必須是可以比較的的同類人或物,否則會(huì)出錯(cuò): 正:The population of 誤:The population of (此句錯(cuò)在將 the population of China 與 Japan 來比較,比較對(duì)象不一致) |
![]() ![]() |