1. 不，否，非
2. 没有
3. 并非，不是，不是说
4. 不会
5. 不怎么
6. 不都是，不全是
7. 或许不
8. 一件也没
9. 一个也不
10. 没什么
11. 别客气， 没关系
12. 不仅…而且…
13. 倒不是， 并不是说

1. 电算
2. 【计】 “非”

1. 不,没 (word that gives an opposite meaning to another word or sentence)

1.(与动词连用构成否定句)不，非，没有
You usenot with verbs to form negative statements.

not在线翻译

e.g. The sanctions arenot working the way they were intended...
制裁没有发挥预期的作用。
e.g. I wasnot in Britain at the time...
当时我不在英国。

2.(构成期望得到肯定回答的疑问句)
You usenot to form questions to which you expect the answer 'yes'.

e.g. Haven't they got enough problems there already?...
难道他们那儿的问题还少吗？
e.g. Didn't I see you at the party last week?...
我在上周的聚会上见过你，对不对？

3.(通常以 n't 的形式出现在问句中，用于推断某人应已做某事或表示惊讶)
You usenot, usually in the formn't, in questions which imply that someone should have done something, or to express surprise that something is not the case.

e.g. Why didn't you do it months ago?...
几个月以前你为什么不做呢？
e.g. Why couldn't he listen to her?...
他为什么不能听她的呢？

4.(通常用 n't 的形式，用于肯定陈述后的附加疑问句)是吗? 不是吗?
You usenot, usually in the formn't, in question tags after a positive statement.

e.g. 'It's a nice piece of jewellery though, isn't it?'...
“可这是一件漂亮的首饰，不是吗?”
e.g. I've been a great husband, haven't I?...
我一直是个很不错的丈夫，不是吗？

5.(通常以 n't 的形式，表示礼貌的建议)
You usenot, usually in the formn't, in polite suggestions.

e.g. Actually we do have a position in mind. Why don't you fill out our application?...
实际上我们的确在考虑一个职位，你先填一下我们的求职表好吗？
e.g. Couldn't they send it by train?
他们不能用火车运过来吗？

6.(用于表示对刚提及的单词、词组或从句的否定)不，没有
You usenot to represent the negative of a word, group, or clause that has just been used.

not

e.g. 'Have you found Paula?'—'I'm afraidnot, Kate.'...
“你找到葆拉了吗？”——“很遗憾，没有，凯特。”
e.g. At first I really didn't care whether he came ornot.
起先我真的不在乎他是否会来。

7.(用于 all 或 every 前，表示部分否定)并非，不是
You can usenot in front of 'all' or 'every' when you want to say something that applies only to some members of the group that you are talking about.

e.g. Not all the money, to put it mildly, has been used wisely...
说得好听些，不是所有的钱都花得是地方。
e.g. Not every applicant had a degree.
不是所有的求职者都有学位。

8.并非(总是…)
If something isnot always the case, you mean that sometimes it is the case and sometimes it is not.

e.g. He didn't always win the arguments, but he often was right...
他并非在争辩中总是能赢，但他经常是对的。
e.g. She couldn't always afford a babysitter...
她并不是总能请得起临时保姆。

9.(用于 a 或 one 前加强语气)(一个…)也不，(一个…)也没有
You can usenot ornot even in front of 'a' or 'one' to emphasize that there is none at all of what is being mentioned.

e.g. The houses are beautiful, but there's no shop,not even a pub to go into...
这些房子很漂亮，但周围没有商店，甚至连一个酒馆都没有。
e.g. I sent report after report. Butnot one word was published...
我寄了一篇又一篇的报告，但一个字都没有发表。

10.(用于表示距离、时间或其他数量的词前)不到，少于
You can usenot in front of a word referring to a distance, length of time, or other amount to say that the actual distance, time, or amount is less than the one mentioned.

not的近义词

e.g. The tug crossed our sternnot fifty yards away...
拖船擦着我们的船尾开了过去，距离不到50码。
e.g. ...a large crowdnot ten yards away waiting for a bus...
不到10码远的地方有一大群等公共汽车的人

11.(用于对比真实和不真实的情况，尤用于可能使人产生误解的陈述)不是
You usenot when you are contrasting something that is true with something that is untrue. You use this especially to indicate that people might think that the untrue statement is true.

e.g. He has his place in the Asian teamnot because he is white but because he is good...
他在这支亚洲球队中占有一席之地，不是因为他是白人，而是因为他确实出色。
e.g. Training is an investmentnot a cost...
培训是一种投资，而不是花费。

12.(用于not only，not just, not simply 等短语中，强调某事物的真实性，但不是全部事实)
You usenot in expressions such as 'not only', 'not just', and 'not simply' to emphasize that something is true, but it is not the whole truth.

e.g. These movies werenot only making money; they were also perceived to be original...
这些电影不仅赚钱，而且被视为具有原创性。
e.g. There is always a 'black market'not just in Britain but in Europe as a whole...
黑市一直存在，不只是在英国，整个欧洲也是。

13.(用于引出否定从句)并不是说，并非
You usenot that to introduce a negative clause that contradicts something that the previous statement implies.

e.g. His death took me a year to get over;not that you're ever really over it...
我用一年时间慢慢接受了他去世的事实，但其实你永远不会真正完全忘掉。
e.g. It occurred to Tom to wonder whether Jane was quite trustworthy.Not that he thought she was in any way politically active.
汤姆突然想到简是不是值得信任，并不是说他认为简有些热衷于政治。

14.(用于表示强调)一点不，根本没有
Not at all is an emphatic way of saying 'No' or of agreeing that the answer to a question is 'No'.

e.g. 'Sorry. I sound like Abby, don't I?' — 'No.Not at all.'...
“抱歉，我讲起话来像阿比，是不是？”——“不，一点不像。”
e.g. 'You don't think that you've betrayed your country.' — 'No I don't. No,not at all.'
“你认为你没有背叛自己的国家。”——“我没有，根本没有。”

15.不用谢;别客气
Not at all is a polite way of acknowledging a person's thanks.

e.g. 'Thank you very much for speaking with us.' — 'Not at all.'
“非常感谢您能和我们交谈。”——“不客气。”

16. not half -> see half
ifnot -> see if
not least -> see least
not to mention -> see mention
nothing ifnot -> see nothing
not for nothing -> see nothing
more often thannot -> see often

1. She did not see him.
   她没看见他。
2. You may not be chosen.
   可能挑不上你。
3. I mustn't forget.
   我绝不能忘记。
4. They are not here.
   他们没在这儿。
5. I think it is right to say peace cannot be got by begging.
   我认为,和平不能靠乞求获得这一说法是对的。
6. I'm going too, ain't I?
   我不是也要去吗?
7. Ain't we having fun?
   我们不愉快吗?
8. I asked him not to come.
   我请他不要来。
9. He warned me not to be late.
   他提醒我别迟到。
10. The wisest policy is not to interfere.
    不去干涉是最妙的办法。
11. The difficulty was in not laughing out loud.
    难就难在不笑出声来。
12. Not knowing,I cannot say.
    我不知道,所以说不出。
13. Not having a telephone can save you a lot of trouble.
    没有电话可以使你省去很多麻烦。
14. I don't think it will rain.
    我想不会下雨的。
15. I don't believe the policy of power politics can blackmail us into submission.
    我们不信,实力政策能够讹诈我们屈服。
16. “Will it rain?” “I hope not.”
    “会下雨吗?”“我希望别下。”
17. “Does he know?” “I believe not.”
    “他知道吗?”“我认为他不知道。”
18. “Can I come in?” “I'm afraid not.”
    “我可以进来吗?”“很抱歉,不可以。”
19. Is she ready or not?
    她准备好了没有?
20. Can you mend it or not?
    你能不能修理它?
21. All he has said is not right.
    他说的不全对。
22. Not everyone can play the violin.
    不是人人都会拉小提琴。
23. Both of the books are not to my taste.
    这两本书并不都合我的趣味。
24. We plan to meet again in the not too distant future.
    我们打算不久以后再次见面。
25. They are not rich.
    他们不富裕。
26. “Are you hungry?” “Not hungry, just very tired.”
    “你饿吗?”“不饿,只是很累。”
27. That was not wisely done.
    那件事做得不明智。
28. Not until last week was the project in full blast.
    工程直到上星期才全部开工。
29. Not for the world, would I never think of hurting her.
    我无论如何也不曾想过要去伤害她。
30. “Would you like some more?” “Not for me, thank you.”
    “你再要点儿吗?”“别给我了,谢谢。”
31. “Do you go in the sea every day?” “Not in the winter.”
    “你每天都下海吗?”“冬天不下。”
32. She argued, and not without reason, that no one could afford to pay.
    她辩称没人能付得起钱,这也不无道理。
33. It's not on Sunday.
    不是在星期天。
34. Not a hair of your head shall be touched.
    不许动你一根毫毛。
35. “How much did this cost?” “Not a penny.”
    “这个值多少钱?”“一分钱也不值。”
36. “Who will do the washing-up?” “Not me.”
    “谁管洗碗?”“不是我。”
37. He drank not a little of the wine.
    他喝的酒很多。
38. The tumbler is not half full.
    这杯子里酒还不到一半。
39. He accused them of being responsible for the error, and that's not half of the story.
    他指控他们应对那错误负责,其实,这指控还远远不够。
40. I don't half like the idea of your travelling by yourself.
    我一点也不赞成你独自去旅行。
41. I didn't feel half sorry, to tell you the truth.
    说真的,我一点也不感到难受。
42. This lesson is not half so difficult as that one.
    这篇课文远不及那篇课文难。
43. We didn't feel half as bad when we got there.
    当我们到那里时,感觉到好多了。
44. His first attempts at painting are not half as bad.
    他初学绘画的成绩相当好。

• Is he not a gay dissipated rake who has squandered his patrimony?

  出自：R. B. Sheridan

• This is not the cause of a king, but of kings.

  出自：Burke

• If the sky were not clear..you would have to come..in the morning.

  出自：T. Hardy

• The English translation is not good.

  出自：A. Tate

• An Indian, isn't he?

  出自：P. Capon

• A swimming-pool..is common to all as a table is not.

  出自：absol.

下面各组中的两个句子意思不同:

I do not hope that he will come tomorrow.

我不希望他明天来。

I hope that he will not come tomorrow.

我希望他明天别来。

I am not afraid that he will come tomorrow.

我不怕他明天来。

I am afraid that he will not come tomorrow.

恐怕他明天不来。

I do not fear that he will come tomorrow.

我并不怕他明天来。

I fear that he will not come tomorrow.

我怕他明天不来。

I do not trust that he will come tomorrow.

我不相信他明天来。

I trust that he will not come tomorrow.

我相信他明天不来。

no，not

这两个词均可表示否定“不、没有”之意。

no用作形容词时一般直接置于名词之前，no修饰名词时，语气强于not。

not名词前有a, any, much, enough等限定词时，不可用no，应用否定副词not。