vt. & vi.怀疑，疑惑 be uncertain about; hesitate to believe; question the truth of

　～ one's own existence　怀疑自己的存在
　～ sb's ability　怀疑某人的能力
　～ sb's character　怀疑某人的人格
　～ sb's consciousness　怀疑某人的觉悟
　～ sb's death　怀疑某人的死亡
　～ sb's decision　怀疑某人的决定
　～ sb's efficiency　怀疑某人的效率
　～ sb's evidence　怀疑某人的证据
　～ sb's existence　怀疑某人的存在
　～ sb's faith　怀疑某人的信仰
　～ sb's feeling　怀疑某人的感情
　～ sb's honesty　怀疑某人的诚实
　～ sb's intentions　怀疑某人的动机
　～ sb's judgment　怀疑某人的判断
　～ sb's nature　怀疑某人的本性
　～ sb's personality　怀疑某人的人格
　～ sb's prestige　怀疑某人的威望
　～ sb's proof　怀疑某人的证明
　～ sb's sanity　怀疑某人的清醒
　～ sb's sincerity　怀疑某人的诚意
　～ sb's stand　怀疑某人的立场
　～ sb's success　怀疑某人的成功
　～ sb's support　怀疑某人的支持
　～ sb's understanding　怀疑某人的理解力
　～ sb's view　怀疑某人的看法
　～ sb's wisdom　怀疑某人的才智
　～ sb's words　怀疑某人说的话
　～ the cause of　怀疑…的起因
　～ the certificates of　怀疑…的证件
　～ the correctness of　怀疑…的正确性
　～ the method of　怀疑…的方法
　～ the precision of　怀疑…的精密度
　～ the progress of　怀疑…的进展
　～ the quality of　怀疑…的质量
　～ the reason of　怀疑…的原因
　～ the result of　怀疑…的结果
　～ the sources of　怀疑…的来词/cn>
　～ the system of　怀疑…的体系
　～ the theory of　怀疑…的理论
　～ the truth of　怀疑…的真实性
　～ the value of　怀疑…的价值
　～ the way of　怀疑…的做法
　～ the witness　怀疑证人

～+副词

　～ hardly　不容置疑
　～ very much　非常怀疑
　～ casually　偶尔怀疑
　～ childishly　幼稚地怀疑
　～ gravely　非常怀疑
　～ greatly　非常怀疑
　～ growingly　渐渐怀疑
　～ painfully　痛苦地怀疑
　～ reasonably　有理地怀疑
　～ seriously　非常怀疑
　～ strongly　非常怀疑
　～ unjustly　不公正地怀疑

～+介词

　～ about　怀疑
　～ of　怀疑
　～ of its further progress　怀疑其进一步拓展
　～ of sb's ability　怀疑某人的能力
　～ of success　怀疑成功性

　He says he can cure me but I still doubt him.　他说他能治好我的病，但我还是不相信他。
　She did exactly what she had promised, I'm sorry I ever doubted her.　她完全信守诺言，我对自己曾经怀疑过她而感到抱歉。
　He lost his money. He doubted Jim, since he was ever dishonest.　他丢了钱，他怀疑吉姆，因为吉姆曾经不诚实过。
　Why didn't she doubt the cheats?　她为什么不怀疑骗子?
　Maybe he changed his mind, but I doubt it.　也许他改变了主意，但我表示怀疑。
　You can write to him if you doubt my words.　要是你不信我说的话，可写信去问他。
　They inwardly doubted the facts.　他们从心底里怀疑这些事实。
　You cannot doubt your own existence.　你不能怀疑你自己的存在。
　You cannot doubt her sincerity.　你不能怀疑她的真诚。
　Everything is clear now; no one would doubt what to be done.　一切都很清楚了，没有人对所要做的事怀疑啦。
　He doubts being able to finish in time.　他怀疑能否及时完成。
　We doubted her telling tales.　我们怀疑她是否会搬弄是非。
　Do you doubt that he will win?　你怀疑他将得胜吗?
　I don't doubt that he wrote it himself.　我不怀疑那是他亲自写的。
　I don't doubt that they'll accept at once.　我相信他们会马上接受。
　We don't doubt that he can do a good job of it.　我们并不怀疑他能把这事干得很好。
　The doctor doesn't doubt but that she will recover.　大夫毫不怀疑她会复原的。
　I do not doubt but that our experiment will be carried out in time.　我毫不怀疑我们的实验会及时进行。
　Do you doubt what I say?　你怀疑我说的话吗?
　I doubt whether he will marry her.　我怀疑他是否会跟她结婚。
　I doubt whether it is true.　我怀疑这是不是真的。
　He doubted whether they would be able to help.　他拿不准他们是否能帮忙。
　I doubt if he is honest.　我怀疑他是否诚实。
　She doubted if he could make a success of it.　她怀疑他是否能把这件事干得很好。
　We doubted him a liar.　我们怀疑他是个骗子。
　Nobody doubts him to have been honest.　没有人怀疑他曾经是诚实的。

 ♣ doubt of　(v.+prep.)
　〈正〉怀疑（某事）　 be uncertain of (sth)
　〔说明〕 doubt of通常不接人作宾语。
　I doubt of her ability.　我怀疑她的能力。
　Such actions make me doubt of his sanity.　这种行为使我怀疑他的神志是否清醒。
　How do you doubt of the firm's future?　你怎能怀疑公司的前景呢?

 ♣ doubt if-clause, doubt whether-clause
　这两者的区别仅在于前者较随便，后者较正式。
 ♣ doubt, suspect
　这两个词的共同意思是“怀疑”。它们的区别是：
1. 两者都可以接that从句作宾语，但含义不同：前者的意思是“疑为非”；后者的意思是“疑为是”。试比较：

2. doubt后可接whether或if从句，但suspect则不能。

1. 有时在肯定句里也可见doubt接由that引导的从句的情况，这时怀疑的意味已很淡。例如：
　I doubt that he will come.　我想他恐怕不会来。
2. doubt一般不用于进行体。但偶尔可见如She is always doubting my word.（她总是不相信我的话）这类的句子，句中的现在进行时表示一种“不满”的情绪。
3. 在肯定句中不可以说I doubt so.但在否定句中则可以说I don't doubt so.

1. U C 怀疑，疑虑　 uncertainty of mind
2. U C 未确定　 uncertain state of things

　arouse ～　引起怀疑
　cast ～　引起怀疑
　cause ～　引起怀疑
　clear ～s　消除疑虑
　decide ～　解决疑问
　destroy ～　消除疑虑
　dismiss ～s　消除疑虑
　have ～　存在疑问
　remove ～s　消除疑虑
　resolve all ～s　消除所有的疑虑
　satisfy ～s　消除疑虑
　settle a ～　消除疑虑
　all ～　一切怀疑
　any ～　任何怀疑
　disagreeable ～　令人不快的怀疑
　grave ～　严重的怀疑
　great ～　严重的怀疑
　historic ～　历史的怀疑
　little ～　几乎不怀疑
　much ～　很怀疑
　serious ～　严重的怀疑
　slight ～　一丝怀疑
　strong ～　强烈的怀疑
　sudden ～　突然的怀疑
　beyond all ～　不容置疑
　in ～　存在疑问
　with ～　存在疑问
　without a ～　无疑地
　～ about　对…的疑问
　～ as to　对…的疑问
　～ in regard to　对…的怀疑
　～ of　对…的怀疑
　～ on〔upon〕　对…的怀疑

　The doubt dissipated.　怀疑消失了。
　A sudden doubt came to my mind.　我心中突然起了疑虑。
　When he read the letter, his doubts cleared away.　他读了那封信以后，心中的疑虑就消除了。
　They dare not publicly admit to these doubts.　他们不敢公开承认这些疑虑。
　What caused this doubt to spring up in your mind? 　什么原因使你突然产生了这个疑团?
　You must cast aside all doubts and tackle the job with confidence.　你必须消除一切疑虑，充满信心地着手进行这项工作。
　He explained away her doubts.　他通过解释消除了她的怀疑。
　He was so full of his own schemes, that he swept aside reasonable doubts.　他很有一套自己的办法，对别人合理的怀疑也不予理会。
　His honesty is beyond doubt.　他的诚实毫无疑问。
　There is no room for doubt.　没有怀疑的余地。
　I'll try my best to free them from doubts and misgivings.　我要尽力消除他们心中的疑虑。
　They were full of doubts and suspicions.　他们是满腹疑团。
　There is not a shadow of doubt.　毫无怀疑。
　There is not much doubt about his guilt.　他有罪几乎是可以确定的。
　Please dismiss all doubts about it.　请打消对此的一切顾虑。
　I entertained grave doubts about the wisdom of what he was doing.　我很怀疑他正在做的事是否明智。
　I have doubts about the truth of the story.　我对那个故事的真实性有所怀疑。
　It all depends. I have certain doubts about it.　这很难说，得看情况。
　She has doubt as to this decision.　她对这项决定有怀疑。
　Is there any doubt that he is a thief?　他是个贼难道还有疑问吗?
　There is some doubt whether she will come on time.　她会不会准时来还不一定。

 ♣ cast〔throw〕 doubt(s) on
　使人对…产生怀疑　make people wonder about the truth of sth
　The lack of facilities for elderly people has cast doubts on the whole of the redevelopment scheme.　整个重建计划缺乏提供给老人们的设施，这使人们对计划产生了怀疑。
　She threw a doubt on his ability.　她对他的能力产生了怀疑。
 ♣ in doubt
　存在疑问　having doubt
　Their acceptance of the contract is still in doubt.　他们是否接受那合同还说不准。
　Haas is in doubt how to repair this machine.　哈斯不知道怎样修理这台机器。
　When you are in doubt about the meaning of a word, consult your dictionary.　对一个词的词义有疑问时，一定要查词典。
　She is in doubt about what to do.　她尚未确定做什么。
　We were in doubt where he has gone.　我们弄不清楚他去哪儿了。
　At the time she was in bitter doubt whether she was right.　那时她怀疑自己是否正确，心中很痛苦。
　The boy's honesty was never called in doubt.　那个男孩的诚实不容置疑。
　The decision by the headmaster was called in doubt by some of the teachers who thought it unnecessarily harsh.　有些教师对校长的决定存有异议，他们认为没有必要那么严厉。
 ♣ no doubt
　很可能，我想　very probably
　I have no doubt of success.　我相信会成功的。
　They have no doubt as to his loyalty.　他们相信他的忠诚。
　I left no doubt as to what he said.　我对他说的话置信不疑。
　No doubt you are wrong.　我想你是错的。
　No doubt he was just trying to help.　他多半只是想帮帮忙。
　The court will no doubt deal severely with the criminals.　法庭很可能会严厉处置这些罪犯。
　You have no doubt heard the news.　你肯定已经听到了这个消息。
　There is no doubt that he will win.　我想他一定会赢。
　There is no doubt that he was in a highly excitable condition just now.　很可能他刚才处于极度兴奋状态之中。
 ♣ without (a) doubt
　毫无疑问　having no doubt
　Without a doubt these theories are all wrong.　毫无疑问，这些理论全都是错误的。
　Don't worry, he'll come back without doubt.　不要担心，他一定会回来的。
　He is without doubt the cleverest student I've ever taught.　他确实是我所教过的学生中最聪明的。

 ♣ be in doubt, hang in doubt
　这两个短语意思相近，但仍有区别。前者一般表示某人对某事拿不准或某事尚不能确定，其主语可以是人，也可以是事；而后者一般指客观事物，表示事态难以预料，悬而未决，在语气上不肯定的程度更浓，给人以危机感，其主语一般为事〔物〕。例如：
　The result of the experiment is still in doubt.　实验结果尚未确定。
　He was sent to the hospital, but his life hangs in doubt.　他被送往医院了，但死活难以预料。
 ♣ 下面两句意思不同：

　［同义词］ v. mistrust, question, suspect n. disbelief, hesitancy, indecision, misgiving, uncertainty
　［反义词］ v. believe, trust n. belief, confidence, reliance, trust
　［词源］　古法语douter<拉丁语dublitare（怀疑）