求doubt的详细讲解。包括短语，例题还有中文

Question

求doubt的详细讲解。包括短语，例题还有中文 急用

Answer 1

一、doubt用作动词 1. doubt+名词或代词。例如： I doubt his word. 我怀疑他的话。 They doubted him before. 他们以前曾经怀疑过他。 2. doubt+宾语从句 （1）在否定句和疑问句中，doubt后面接that引导的宾语从句。例如： I don”t doubt that he can finish the task on time. 我相信他能按时完成任务。 Do you doubt that she will succeed? 你怀疑她会成功吗？ （2）在肯定句中，doubt后面一般接whether或if引导的宾语从句。例如： I doubt whether they can swim across the river. 我怀疑他们能否游过河去。 He doubts if she will keep her word. 他不敢肯定她是否会遵守诺言。 注意：在肯定句中，doubt后面也可以接that引导的宾语从句，但表示疑虑较大或“不相信”。例如： We doubt that they can complete the work ahead of time. 我们不相信他们能提前完成这项工作。 I doubt that he will come. 我看他未必会来。 二、doubt用作名词 1. doubt常与about/of/as to/on等介词连用。例如： There is no doubt about it. 此事无可怀疑。 I have no doubt of his ability. 对于他的能力我毫不怀疑。 She has her doubts as to this being true. 她怀疑这事是否真实。 No one has any doubt on this point. 这一点没有人会怀疑。 2. doubt后面接同位语从句 （1）doubt用在否定句中，后面接that引导的同位语从句。例如： I have no doubt that he will succeed. 我相信他会成功的。 There is no doubt that they will agree with you on this matter. 毫无疑问，他们在这件事上会同意你的意见的。 （2）doubt用在肯定句中，后面接whether引导的同位语从句。注意不可以用if替换whether。例如： He had his doubts whether they would give him another chance to have a try. 他不能肯定他们是否会再给他一次机会试一试。 There is some doubt whether their football team will win the match. 他们的足球队会不会赢得这场比赛还不能肯定。 3. 由doubt组成的一些短语 （1）in doubt怀疑；拿不定主意。例如： We are in doubt(about) what to do next. 我们不知道下一步要做什么。 When in doubt about the meaning of a word, consult the dictionary. 当你对一个词的意义没有把握时，就查一下词典。 （2）no/without/beyond doubt无疑地；必定；当然。例如： It is no doubt difficult. 这无疑是困难的。 No doubt he didn”t mean to hurt you. 他肯定不是有意伤害你的。 Without doubt this is the best. 无可置疑，这是最好的。 Beyond doubt he will give you some advice on your study. 毫无疑问，他会给你的学习作一些指导的。 （3）make no doubt of 对……毫不怀疑。例如： We make no doubt of his sincerity. 我们对他的诚意毫不怀疑。 She made no doubt of what he had said. 她对他所说的话毫不怀疑。 （4）throw/cast doubt on使人对……产生怀疑。例如： Galileo”s experiments threw doubt on Aristotle”s theory of falling objects. 伽利略的实验使人们对亚里士多德的落体理论产生了怀疑。 What he had done cast doubt on his honesty. 他的所作所为使人们对他的诚实产生了怀疑。

Answer 2

doubt的用法1.用作动词(1)怀疑；不相信a.跟名词或代词I doubt the truth of this report. 我怀疑这报告的真实性。I doubt his honesty. 我怀疑他的诚实。You can write to him if you doubt my words.如果你不相信我的话，你可以给他写信。I'm sorry I doubted you before.对不起，我以前怀疑过你。b.跟从句注意：在肯定句中跟if或whether引导的从句；在否定句或疑问句中跟that引导的从句。在肯定句中偶尔跟that引导的从句表示“恐怕不会”。I doubt whether/if he will come.我怀疑他是否会来。I don't doubt that you are honest.我不怀疑你是诚实的。Nobody can possibly doubt what he says.没人会怀疑他说的话。I doubt that John will come.恐怕约翰不会来了。c.可跟动名词Nor do we doubt being able to finish in time.我们也不怀疑是否有能力及时完了。(2)用作不及物动词What made you doubt?什么使你怀疑？用doubt of表“对……(抱)怀疑或悲观(态度)”They have never doubted of success.他们从没有对成功怀疑过。2.用作名词，表“怀疑；疑惑；疑问(多用作不可数名词)”I have no doubt about his success.=I have no doubt that he will succeed.我对他的成功毫不怀疑。There is no room for doubt.没有怀疑的余地。(1)在there is no doubt 后常可跟that从句。There is no doubt that we should be able to do something for you.我相信我们能为你做点什么。(2)在肯定句中doubt后有时也可跟whether引导的从句。There is some doubt whether John will come on time.约翰是否会按时到还有疑问。(3)短语a. beyond(all)doubt 毫无疑问；无疑地The truth of the story is beyond all (the) doubt.这个故事的真实性是毫无疑问的。b. in doubt怀疑；不肯定；拿不准His age is in doubt.他的年龄叫人怀疑。We are in doubt what to do.我们拿不定主意该怎么做。c. no doubt 肯定地；想必；十之八九You know him by name,no doubt?想必你知道他的名字吧？No doubt I learned a lot from that lecture.我肯定从那次演讲中学了不少东西。d. without (a) doubt 毫无疑问；一定地Without a doubt these theories were all wrong.毫无疑问，这些理论全是错误的。Don't worry, he'll come back without doubt.别担心，他一定会回来的。