whether

conj.

1. （表示迟疑或两个可能性之间的选择）是否
   used to express a doubt or choice between two possibilities
   1. He seemed undecided whether to go or stay.
      他似乎还没有决定去留。
   2. It remains to be seen whether or not this idea can be put into practice.
      这一想法能否付诸实践还有待于观察。
   3. I asked him whether he had done it all himself or whether someone had helped him.
      我问过他这都是他自己做的还是有人帮他做的。
   4. I'll see whether she's at home (= or not at home) .
      我来看看她在不在家。
   5. It's doubtful whether there'll be any seats left.
      看来未必还有座位。
2. （表示两种情况都真实）是…（还是），或者…（或者），不管…（还是）
   used to show that sth is true in either of two cases
   1. You are entitled to a free gift whether you accept our offer of insurance or not.
      无论你接不接受我们的保险提议，你都可以免费得到一份礼物。
   2. I'm going whether you like it or not .
      不管你愿意不愿意，我都要走了。
   3. Whether or not we're successful, we can be sure that we did our best.
      不管成功与否，我们确已尽了最大努力。

1. CONJ-SUBORD (表示选择或怀疑)是否，是不是
   You use whether when you are talking about a choice or doubt between two or more alternatives.
   1. To this day, it's unclear whether he shot himself or was murdered...
      至今尚不清楚他究竟是饮弹自杀还是被谋杀。
   2. Whether it turns out to be a good idea or a bad idea, we'll find out...
      它到底是个好主意还是坏主意我们很快会见分晓。
   3. They now have two weeks to decide whether or not to buy...
      现在他们有两周时间决定到底买还是不买。
   4. The council is considering whether to approve of the use of firearms...
      政务委员会正在考虑是否要批准动用武器。
   5. I don't know whether they've found anybody yet.
      我不知道他们有没有找到什么人。
2. CONJ-SUBORD 无论;不管
   You use whether to say that something is true in any of the circumstances that you mention.
   1. This happens whether the children are in two-parent or one-parent families...
      不管孩子是生活在双亲还是单亲家庭，这种情况都会发生。
   2. Whether they say it aloud or not, most men expect their wives to be faithful.
      大多数男人还是希望他们的妻子对自己忠诚，不管他们有没有将这一想法大声说出来。
   3. ...beers and lagers of all kinds, whether bottled or draught.
      各种低度啤酒和窖藏啤酒，不管是瓶装的还是散装的

1. I could feel blood draining from my face. I wondered whether I was about to black out
   我能感觉到血从我脸上流下来。我想我是不是要晕过去了。
2. It's not a case of whether anyone would notice or not.
   这不是会不会有人注意到的问题。
3. I had a cold and couldn't decide whether to go to work or not
   我感冒了，拿不定主意是否要去上班。
4. She questioned whether it was feasible to stimulate investment in these regions
   她对在这些地区刺激投资是否可行表示怀疑。
5. This blood test will show whether or not you're immune to the disease
   这个血检会显示你是否对这种疾病具有免疫力。
6. I discussed with my intimate friends whether I would immediately have a baby.
   我与密友们讨论是否我要马上生孩子。
7. It is not clear whether the president is willing to negotiate with the democrats
   还不清楚总统是否愿意和民主人士洽谈。
8. You examine a patient and then you decide whether or not to operate.
   先为病人作检查，然后再决定是否做手术。
9. I don't know whether people will buy it or not
   我不知道是否会有人买。
10. I don't know whether to hate or pity him.
    我不知道该恨他，还是该同情他。
11. There's some question as to whether he will sign this resolution
    他是否会签署这项决议还不能确定。
12. Regardless of whether he is right or wrong, we have to abide by his decisions.
    不管他正确与否，我们都得服从他的决定。
13. The question remains whether he was fully aware of the claims.
    问题是他是否完全意识到了这些要求。
14. You can find out whether they are prepared to share the cost of the flowers with you
    你可以弄清楚他们是否愿意和你一起分担买花的费用。
15. You'll be given regular blood tests to show whether you have been infected.
    你将接受定期的血液检查以确定你是否已被感染。
16. We shall be able to tell whether you've kept your side of the bargain.
    我方应能知道你方是否遵守了协议。
17. It's questionable whether anything of substance has been achieved
    是否已经取得了任何实质性进展还是个问题。
18. It's uncertain whether they will accept the plan
    还不确定他们是否会接受这一方案。
19. To this day, it's unclear whether he shot himself or was murdered
    至今尚不清楚他究竟是饮弹自杀还是被谋杀。
20. Whether it turns out to be a good idea or a bad idea, we'll find out
    它到底是个好主意还是坏主意我们很快会见分晓。
21. They now have two weeks to decide whether or not to buy
    现在他们有两周时间决定到底买还是不买。
22. The council is considering whether to approve of the use of firearms
    政务委员会正在考虑是否要批准动用武器。
23. I don't know whether they've found anybody yet.
    我不知道他们有没有找到什么人。
24. This happens whether the children are in two-parent or one-parent families
    不管孩子是生活在双亲还是单亲家庭，这种情况都会发生。
25. Whether they say it aloud or not, most men expect their wives to be faithful.
    大多数男人还是希望他们的妻子对自己忠诚，不管他们有没有将这一想法大声说出来。
26. There is energy working around us all the time whether we are aware of it or not.
    在我们周围总是有能量在做功，不管我们是否察觉到它。
27. Think it over and let me know whether you agree with me.
    好好寻思一下，然后告诉我你是否同意我的意见。
28. Whether this will be successful or not is still difficult to predict.
    成败利钝尚难逆料。
29. It doesn't matter to me whether you go or not.
    你去或不去，对我都没关系。
30. I can't say whether he is coming or not.
    我说不上他来不来。