doubt有懷疑，疑慮等意思，是學(xué)習(xí)英語中的常用詞，也是歷年高考經(jīng)常考查的詞語之一。那么你知道doubt有哪些用法嗎?下面小編現(xiàn)將doubt的用法歸納如下，歡迎大家學(xué)習(xí)!

doubt的用法：用作名詞

(資料圖)

1. doubt后面接同位語從句

(1)doubt用在肯定句中，后面接whether引導(dǎo)的同位語從句。注意不可以用if替換whether。例如：

He had his doubts whether they would give him another chance to have a try. 他不能肯定他們是否會(huì)再給他一次機(jī)會(huì)試一試。

There is some doubt whether their football team will win the match. 他們的足球隊(duì)會(huì)不會(huì)贏得這場(chǎng)比賽還不能肯定。

(2) doubt用在否定句中，后面接that引導(dǎo)的同位語從句。 例如：

I have no doubt that he will succeed. 我相信他會(huì)成功的。

There is no doubt that they will agree with you on this matter.

毫無疑問，他們?cè)谶@件事上會(huì)同意你的意見的。

2. doubt常與about/of/as to/on等介詞連用。 例如：

There is no doubt about it. 此事無可懷疑。

I have no doubt of his ability. 對(duì)于他的能力我毫不懷疑。

She has her doubts as to this being true. 她懷疑這事是否真實(shí)。 No one has any doubt on this point. 這一點(diǎn)沒有人會(huì)懷疑。

3. 由doubt組成的一些短語

(1) no/without/beyond doubt無疑地;必定;當(dāng)然。 例如：

It is no doubt difficult. 這無疑是困難的。

No doubt he didn”t mean to hurt you. 他肯定不是有意傷害你的。 Without doubt this is the best. 無可置疑，這是最好的。 Beyond doubt he will give you some advice on your study.

毫無疑問，他會(huì)給你的學(xué)習(xí)作一些指導(dǎo)的。

(2) in doubt懷疑;拿不定主意。 例如：

We are in doubt(about) what to do next. 我們不知道下一步要做什么。 When in doubt about the meaning of a word, consult the dictionary. 當(dāng)你對(duì)一個(gè)詞的意義沒有把握時(shí)，就查一下詞典。

(3) make no doubt of 對(duì)??毫不懷疑。 例如：

We make no doubt of his sincerity. 我們對(duì)他的誠意毫不懷疑。

(4) throw/cast doubt on使人對(duì)??產(chǎn)生懷疑。 例如：

Galileo”s experiments threw doubt on Aristotle”s theory of falling objects. 伽利略的實(shí)驗(yàn)使人們對(duì)亞里士多德的落體理論產(chǎn)生了懷疑。

What he had done cast doubt on his honesty. 他的所作所為使人們對(duì)他的誠實(shí)產(chǎn)生了懷疑。

doubt的用法：用作動(dòng)詞

1. doubt+名詞或代詞。

例如：I doubt his word. 我懷疑他的話。

They doubted him before. 他們以前曾經(jīng)懷疑過他。

2. doubt+賓語從句

(1) 在否定句和疑問句中，doubt后面接that引導(dǎo)的賓語從句。 例如：

I don”t doubt that he can finish the task on time. 我相信他能按時(shí)完成任務(wù)。 Do you doubt that she will succeed? 你懷疑她會(huì)成功嗎?

(2) 在肯定句中，doubt后面一般接whether或if引導(dǎo)的賓語從句。 例如：

I doubt whether they can swim across the river. 我懷疑他們能否游過河去。 He doubts if she will keep her word. 他不敢肯定她是否會(huì)遵守諾言。

注意：在肯定句中，doubt后面也可以接that引導(dǎo)的賓語從句，但表示疑慮較大或“不相信”。例如：

We doubt that they can complete the work ahead of time. 我們不相信他們能提前完成這項(xiàng)工作。 I doubt that he will come. 我看他未必會(huì)來。

doubt的用法例句：

1. There can be little doubt that he will offend again.

毋庸置疑他還會(huì)再犯的。

2. They have the usual quota of human weaknesses, no doubt.

毫無疑問，他們身上也有人所共有的弱點(diǎn)。

3. This new information does throw doubt on their choice.

這個(gè)新信息確實(shí)使人們對(duì)他們的選擇產(chǎn)生了懷疑。

4. There was no doubt in his mind that the man was serious.

在他看來，這個(gè)人無疑是認(rèn)真的。

5. I do not doubt that the bank acted properly.

我毫不懷疑銀行的處理方式是妥當(dāng)?shù)摹?/p>

6. Few in Westminster doubt that the government will win the day.

在英國議會(huì)中，幾乎沒有人對(duì)政府將會(huì)獲勝存有懷疑。

7. It was without a shadow of a doubt the best we"ve played.

毫無疑問這是我們表現(xiàn)最出彩的一次。

8. At first I gave him the benefit of the doubt.

起初，我姑且相信了他。

9. I have no doubt that we are polluting the environment beyond redemption.

我絲毫都不懷疑我們對(duì)環(huán)境的污染是不可挽回的。

10. A referendum showed beyond doubt that voters wanted independence.

全民公決無疑顯示選民支持獨(dú)立。

11. There are factors, however, that have cast doubt on the statue"s authenticity.

然而，有些因素讓人對(duì)該雕塑的真?zhèn)萎a(chǎn)生了懷疑。

12. There was no doubt he was serious, it wasn"t just playing around.

毫無疑問他很認(rèn)真，那可不是鬧著玩的。

13. They would no doubt welcome the action with open arms.

他們無疑將熱烈歡迎這一舉動(dòng)。

14. White was in no doubt the referee made the correct decision.

懷特確信裁判作出了公正的判罰。

15. Local inhabitants haven"tthe slightest doubt as to who is the rightful owner.

當(dāng)?shù)鼐用駥?duì)誰是合法所有者沒有絲毫疑問。