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ought to ought to的用法及否定形式

LILLIE

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ought to ought to的用法及否定形式

ought to的意思及用法

should/ought to+should/ought to+have+过去分词”既可表示本该做而事实上没有做的事,也可以表示惊讶、赞叹等情绪。

如: You should have told her about it the day before yesterday. It’s wonderful that you should have achieved so much in these years.

“情态动词+have+过去分词”是很重要的一种句型,除should外,may, might, must, couldn’t, needn’t, ought to等都可以用于这一句型,但要注意使用不同的情态动词句子的意思就有所不同。

ought to与should意思接近,大多数情况下二者可以互换,但是should谈的是自己的主观看法,ought to则更多反映客观情况,在谈到法律、义务和规定时使用。

如: We should/ought to help each other and learn from each other in our work.

She is your mother, so you ought to support her.

We ought to go and see Mary tomorrow, but I don’t think we will.

简单概括:跟 should的用法一样

ought to的用法及否定形式

1.大体上两者的意思是相同的,通常可以互相转换

2.ought to比should 语气强

(1)should 表示主观看法,一些建议,劝说时,译作“应当”。

ought to,直接接动词原形,更多反映客观情况,“有义务”或“必要”做某事,译为“应当,应该”

(2)ought to的否定就表示做某事一定是错误的

而should的否定就表示某动作不一定要做

3.should可以用于虚拟语态,

而ought to 不能

ught to 是唯一一个可加to的情态动词!

ought to 是什么意思?用法是什么??

ought

[C:t]

aux.

(~ to [verb] ) 应当, 应该

ought

[C:t]

v.

应该, 应当

You ought to work harder.

你应该更努力工作。

You ought to have come earlier.

你本该来得早一点儿。

The table-tennis game ought to / should have finished by now.

乒乓球比赛现在应该已经结束了。

大概会,可能会

Prices ought to come down soon.

价格可能会很快下跌。

ought

[C:t]

v.aux.

[oughtest或oughtst是古体,无时态和人称变化, 其后常接动词不定式, 表示过去时用完成式不定式]

[表示责任、义务]应该; 应当; 总应该

[表示合适、明智等, 后接动词不定式的完成式]本应; 本当; 早应该

[表示可能性]大概

[口语中表示愿望]...才好

You ought to do your duty.

你应该尽到自己的责任。

One ought not to cross the street against the red light,

人们不该在红灯时过马路。

You ought to have told me that yesterday.

那件事你本应昨天就告诉我。

She ought to have been more careful.

她本应该小心才是。

It ought to have been done long ago.

这事早该做完的。

It ought to be a fine day tomorrow morning.

明天旱晨大概是个好天气。

You ought to see the picture.

这部影片你去看看才好。

ought

[C:t]

n.

应尽的义务, 责任

obedience to the ought

对义务的服从

oughtness

n.

有义务的状态

ought to和should的区别?

答:ought to与 should的用法区别如下

1. 一般说来,两者可替换,只是ought to语气稍重。如:

You ought to [should] go and see Mary. 你应该去看看玛丽。

2. 表示出于法令规则、行为准则、道德责任等客观情况而“应该”做某事时,一般应用ought to,若用should则含有个人意见,强调主观看法。如:

We ought to go and see Mary tomorrow, but I don’t think we will. 明天我们按理应该去看看玛丽,但是我认为我们不会去(此句不宜用should)。

3. 在公告、须知或条例中,出于礼貌,常用should. 如:

You should not run alongside the swimming-pool. 不准在游泳池边奔跑

ought to 的所有用法和注意事项

一、ought to具体用法如下:

1. (表示义务、责任等) 应当, 应该

You ought to work harder than that.

2. (表示劝告、建议等) 应该, 该

You don't look well. You ought to go to see the doctor.

3. (表示猜测、期望) 总应该,理应

It ought to be a fine day tomorrow morning.

4. “ought to + have + 过去分词”表示过去应做某事而实际未做

You ought to have told me that (but you didn't).

这时ought to和should可以互换使用。

二、ought to的否定式和疑问式

1. ought to的否定形式是ought后直接加not构成,其否定形式可缩写为oughtn't。

One ought not (oughtn't) to cross the street against the red light.

2. ought to的疑问式是将ought提到句首构成。

—Ought we to do it at once? —Yes, you ought to.

在反意疑问句里,下面两种形式都可以:

He ought to be here now, shouldn't (oughtn't) he?

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