doubt 怀疑知多少

doubt 怀疑知多少

doubt一词由于词义特殊,其用法较为复杂。其具体用法如下:

一、作及物动词常用于下列句型中,作"怀疑;不能肯定;不大相信"解,一般不用进行时态。

1.后接名词、代词或V-ing形式。如:

I've always doubted his honesty.我一直对他的诚实表示怀疑。

We may have it ready, but I very much doubt it.我们也许能够把它弄好,但我认为可能性不大。Nor do we doubt being able to finish it in time.我们也相信能够及时完成它。

2.用于否定句或疑问句,后接that引导的宾语从句。如:

I don't doubt that he is telling the truth.我毫不怀疑他在讲真话。

Do you doubt that he will win the match?你怀疑他会赢这场比赛吗?

3.用于肯定句,一般接whether或if引导的宾语从句.如:

I doubt whether we will make a profit out of it.我认为我们不可能从此事中获利。

We doubt if she will be persuaded.我们不知道她会不会被说服。

4.用于肯定句,后接that从句,表示疑虑更大,表示"不相信",相当于don't believe / think.如:

I doubt that she will get the job.我不相信她会得到那个工作。

二、作不可数名词,作"疑惑;怀疑(间或作可数名词)"或"不确定状态"解。

1.接about, as to等。如:

There is not much doubt about his guilt.他的有罪是没有多少怀疑的。

I have my doubts as to the report being true.我怀疑报道是否真实。

I have no doubt about who did it.这件事是谁干的,我心中有数。

2.否定句中doubt多接that同位语从句。如:

There is no doubt that they will ask you for help.毫无疑问,他们会请你帮忙的。

I have no doubt that you will succeed.我毫不怀疑你会成功的。

3.肯定句中doubt多接whether (一般不用if代替)同位语从句。如:

There's some doubt whether he'll keep his promise.他会不会信守诺言还难说。

She had her doubts whether the new book would sell well.她怀疑新书是否会畅销。

4. no doubt表示"多半;很可能;必定"。如:

No doubt he was just trying to help, but in fact he just got in the way.他多半只是想帮忙,可事实上他只是帮倒忙。

They will no doubt punish such a foolish man.他们必定会惩罚这样一个愚蠢的人。

-John will be late, won't he?约翰会迟到的,是不是?

-No doubt.肯定会。

5.用于习语中。

1)in doubt意为"怀疑的;未确定的"。如:

He is in doubt (about) what to do.他尚未确定做些什么事。

The whole matter is still in doubt.整个事情仍然未见分晓。

2)without (a) doubt; beyond / past (all) doubt表示"无疑地"。如:

Don't worry; he'll come back without doubt.不要担心,他一定会回来的。

Her guilt has been established beyond reasonable doubt.她的罪状已经无可置疑地被确立了。

3)have no doubt of意为"对……毫不怀疑"。如:

I have no doubt of your ability.我对你的能力毫不怀疑。