should,ought to,与have to的区别

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should,oughtto,与haveto的区别should,oughtto,与haveto的区别should,oughtto,与haveto的区别haveto可以代替must,表示“必须”、“不得

should,ought to,与have to的区别
should,ought to,与have to的区别

should,ought to,与have to的区别
have to可以代替must,表示“必须”、“不得不”,并可以补充must所缺的时态.should和ought to都表示“宜于”,should一般表示“在我看来这是可取的”或“这是（你）应该做的事”,ought to必should语气略强,有时表示来自外界的规则或义务,但疑问句和否定句结构则多用should.should have和ought to have后面跟过去分词,表示“本应当做的或必须做的事并没有做”,因此后面可接but I wasn't/I didn't.

其实三者有点区别,只是一个比一个重点,意思差不多
should，应当
ought to，应该
与have to必须

should，ought to应该的意思，should 语气比ought to弱，ought to 往往带有原则性的含义
如 You should take the NO.1 bus你应该（最好，比较委婉）乘坐1路车
You ought to take the NO.1 bus 你应该（稍稍生硬，言外之意是反之你可能会怎样。。。）乘坐1路车
have to语气强硬，“不得不...

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should，ought to应该的意思，should 语气比ought to弱，ought to 往往带有原则性的含义
如 You should take the NO.1 bus你应该（最好，比较委婉）乘坐1路车
You ought to take the NO.1 bus 你应该（稍稍生硬，言外之意是反之你可能会怎样。。。）乘坐1路车
have to语气强硬，“不得不。。。”“唯一的办法”
You have to take the NO.1 bus 你必须（十分生硬，言外之意是不这样就不能完成。。）乘坐1路车

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should--理应这么做
ought to-命中注定要这么做
have to -必须这么做

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