大学英语四级语法精要：情态动词（三）

大学英语四级语法精要：情态动词（三）

should, ought to: 表示应该做的事, ought to比should口气稍重一些.

You should (ought to) do as he says.

You shouldn’t (oughtn’t to) talk like that.

但这两者间也有一些差别, 在表示责任, 义务等该做的事情时, 常用ought to, 在表示某件事宜于做时, 多用should, 在下面的句子中这两个词就不宜换用:

You are his father. You ought to take care of him.

We should not use too many big words in our everyday speech.