had better 的用法归纳

1. had better的基本用法特点

You’d better get some sleep．你最好去睡一会儿。

We had better go before it rains. 我们最好在下雨前就去。

2. had better如何构成否定式和疑问式

构成否定式时，通常将not置于had better之后(而不是had之后)；而构成疑问式时，则通常将had(而不是had better)置于主语之前。如：

I’d better not disturb him．我最好别去打扰他。

What had we better do? 我们最好怎么办?

Hadn’t we better go now? 我们是不是现在就去呢?

3. had better后接进行式和完成式动词

有时后接动词的进行式，表示最好马上做某事；也可接完成式动词，表示最好做完某事或本该做某事而未做某事。如(from www.yingyuyufa.com)：

I think I’d better be going．我想我最好还是马上走。

You’d better be getting your clothes ready. 你最好马上把衣服准备好。

You had better have done that. 你最好把那事做完。

You had better have stayed here. 你本来应该呆在这儿的。

4. 有关had better的几点用法说明

(2) had best与had better 用法和含义均差不多，但不如had better普通。如：

You had best get home before midnight．你最好在午夜之前回到家里。

We had best be going．我们最好现在就走。

(3) 有时可省略其中的had。如：

You better stop arguing．你们最好不要争论了。

Better not wait for him. 最好不要等他了。

Better say yes, if they ask you. 如果他们问你，你最好说“是”。

(4) 有时为了强调，可将better置于had之前。如：

“I promise I’ll pay you back.” “You better had.” “我保证还给你。”“你最好还给我。”