ought to和should的区别
1个回答

ought to :

它比must语气弱,但婉转.

They ought to be there by now.他们现在一定到那了

一般用于肯定和否定句

ought 与不定式构成谓语动词.主要用法如下:

( 1 )表示应该做某事.例如:You ought to take his advice.你应当接受他的劝告.

( 2 ) ought + 不定式的完成形式,表示本应该做某事.

例如:They ought to have handed in the paper yesterday.

他们本应当昨天交论文.

should :

表示说话人的猜测,估计应该

That should be Janet coming upstairs now.正在上楼的准是珍妮特.

多用于第一人称.

should

(1) 表示劝告或建议.例如:He should learn how to drive the car.

(2) 表示预测或可能.例如:This kind of reference book should be in the reading-room.

(3) 表示惊奇、愤怒、失望等感情.例如:Why should I go?我干吗要去?

(4) should + 动词的完成形式,表示应该已经做某事.例如:I should have thought of that.

(5) should + 动词的进行形式,表示应该正在做某事.

例如:You should be reading a textbook instead of the novel.

你现在读的应当是一本教科书而不是那本小说.