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透視否定的構(gòu)成及用法注意點(diǎn)

文章來源:本站原創(chuàng) 發(fā)布時(shí)間:2008年06月20日 點(diǎn)擊數(shù):

在日常表達(dá)中,我們有時(shí)需要提出否定的觀點(diǎn)或表達(dá)某種特殊的語氣,這時(shí)可能就會(huì)用到否定形式。恰當(dāng)?shù)卣莆蘸瓦\(yùn)用否定句能使我們更準(zhǔn)確地表達(dá)觀點(diǎn)和情感。本文重點(diǎn)探討它的構(gòu)成和用法。

一.否定結(jié)構(gòu)的構(gòu)成

1.由比較直觀的否定詞no, not, never, none, neither/nor, without等在句中表示否定意義。如:

There is no need to worry about him. 沒有必要為他擔(dān)心。

She left home without telling her parents. .她沒有和父母說一聲就離了家。

2.用含否定前綴或后綴的詞表示否定,常見的否定前綴有:no-, un-, dis- , im- , ir , il- , non-。常見的表示否定的后綴有:-less, -free , -proof 等。如:

   Nobody enjoys being laughed at in public by others. 沒有喜歡在公眾場合被人取笑。

   I looked around, but the man was nowhere to be seen. 我朝四周看了一下,但哪兒也看不到那人了。

   It is a newly built ice-free harbor. 它是新建的不凍海港。

3.運(yùn)用其它隱性否定詞來表達(dá)否定意義。常見的有:few沒幾個(gè), little很少, unless除非, instead of代替;而不, seldom很少;short of不足; lack of缺少; rather than而不, anything but決不, beyond等。

   He would rather die than see any harm come to Pip. 他寧死也不愿看到皮普受到傷害。

   He is anything but a writer. 他決不是一個(gè)作家。

   The new park is beautiful beyond description. 這個(gè)新公園美得無法形容。

4.非謂語動(dòng)詞的否定

   非謂語動(dòng)詞表示否定時(shí)通常在對應(yīng)的非謂語動(dòng)詞之前加not (never)。如:not to do; not doing, not done, not having done等。如:

   Mum told me not /never to play tricks on others. 媽媽叫我不要捉弄?jiǎng)e人。

   Tom’s not having finished his homework made the teacher angry. 湯姆沒有做作業(yè)讓老師生氣。

   Not having accomplished the task, they had to work overtime. 沒有完成任務(wù),他們只好加班。

5. 在動(dòng)詞think, believe, suppose, hope, expect等后可以用not來代替上文已出現(xiàn)過的賓語從句。如:

  Do you think it will rain this afternoon?  你認(rèn)為今天下午會(huì)下雨嗎?

I hope not. We have an important football match. 希望沒有雨,我們有個(gè)重要的球賽呢。

注意:I think(believe / suppose) not也可說成:I don’t think ( believe / suppose )so,但hopeexpect等其它動(dòng)詞只能說:I hope / expect not. 不能說:I don’t hope /expect so.

二.否定結(jié)構(gòu)的注意點(diǎn):

1.當(dāng)主句主語為第一人稱(I, We) 時(shí),謂語動(dòng)詞為think, believe, suppose時(shí),其賓語從句的否定應(yīng)當(dāng)轉(zhuǎn)移到主句上來,而構(gòu)成反意疑問句時(shí)應(yīng)根據(jù)從句的主謂來反問。如:

   I don’t think it is a waste of time to discuss about it again, is it?

   我認(rèn)為再討論這事是浪費(fèi)時(shí)間,你說呢?

2.否定疑問句是將助動(dòng)詞與not的縮寫形式提到句首而構(gòu)成的疑問句,它可以表示驚訝、感嘆、不滿等較強(qiáng)的感情色彩。如:

   Look at the flowers! Aren’t they beautiful? 看那些花!多美?。。ǜ袊@)

   Haven’t I told you not to be late again? 難道我沒告訴過你不要再遲到嗎?(不滿)

   Aren’t all balls round in the USA? 難道在美國球不都是圓的?(驚訝)

3.雙重否定表示肯定意義。

  雙重否定是指在同一個(gè)句子出現(xiàn)兩個(gè)否定詞,這時(shí)它表示的意義比肯定句更強(qiáng)烈。常見結(jié)構(gòu)有:no/not…without; no/none…but, can’t (help) but等。如:

   There is no life without water. 有水才有生命。

   There are no people but wishes for happiness. 人人都渴望幸福。

   We couldn’t (help) but wait for him at the bus station. 我們只好在車站等他。

4.表示否定意義的代詞和副詞(短語)位于句首時(shí),句中主謂要倒裝,這類詞語有:not until; never, hardly, scarcely, no sooner, little, few, nothing, in no case, on no account, by no means等。如:

  Not until he told me did I know his name. 直到他告訴我,我才知道他的名字。

  Hardly had he sat down when the bell rang for class. 他剛一坐下,上課鈴就響了。

5.表示全部意義的詞all,bothevery,everything,everybody,everywhere,always,often,completelywholly,entirely,all the time等與not 連用時(shí),也表示部分否定。

  Not all the people agreed to the plan. = All the people didn’t agree to the plan.

不是所有的人都贊成這項(xiàng)計(jì)劃。(只有部分人同意)

  若表示全部否定,則用對應(yīng)的否定詞,如:all – none; both – neither; everyone – no one; everything – nothing; always – never; both…and…- neither…nor…等。如:

  No one in our class has seen the film. 我們班沒有人看過這部電影。

  Neither I nor Jim was present from the meeting yesterday. 吉姆和我昨天都沒有去開會(huì)。

6can’t 與比較級(jí)或too連用時(shí),不表否定而是肯定意義。如:

  You can’t praise him too much. 你再怎么表揚(yáng)他也不為過分。

  You can’t be too careful when crossing the street. 過馬路時(shí)越小心越好。

7.句型 too… to…常表示否定之意“太……而不能……”。 如:

   The old man was too excited to say a word. 老人激動(dòng)得說不出話來。

   但若為“(onlytoo+ adj. (glad / pleased / happy)+ to…”結(jié)構(gòu),則表示肯定意義。如:

  She was only too glad to be invited to the party. 她受到邀請參加聚會(huì)太高興了。

8.連詞since后接瞬間性動(dòng)詞時(shí)表示“自……以來”,而since后接延續(xù)性動(dòng)詞時(shí),通常譯為“自……不……以來”。試比較:

  It is ten years since my father began to smoke. 我父親吸煙有十年了。(since+瞬間動(dòng)詞began)

  It is ten years since my father smoked. 我父親不吸煙有十年了。(since+延續(xù)性動(dòng)詞smoked

9.句型“prevent, keep, stop +賓語+from doing” from doing表示否定、禁做的事情。如:

   We should prevent such mistakes from being made again. 我們要防止再犯這類錯(cuò)誤。

   短語warn sb. against doing sth. “警告某人不要做某事,介詞against也表示否定意義。該句型可以轉(zhuǎn)換為warn sb. not to do sth。如:

  The parents warned their son against playing with fire.=…not to play with fire

  父母告誡他們的兒子不要玩火。

  同學(xué)們,看來想說“不”也并非一件容易的事,以上的否定表達(dá),你都會(huì)了嗎?