[高中]全新语法:情态动词的用法 九、had better

九、had better

1.缩略式为’d better，后接动词原形，意为“最好，应该”。

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.否定式和疑问式

（1）变否定式时，将not置于had better之后。

I’d better not disturb him.我最好不要去打搅他。

You’d better not play computer games.你最好不要玩电子游戏。

（2）变疑问式时，将had置于主语之前。

Had we better not go？ 我们不去好不好？

What had we better do？ 我们最好做什么？

3.had better后的时态形式

You’d better be quiet.你最好安静一些。（现在）

You’d better start tomorrow.你最好明天动身。（将来）

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

You had better have stayed here.你本来应该呆在这儿的。（过去该做但实际上没做）

4.would rather

（1）表示一种心理愿望，意为“宁愿”。

I’d rather do it by myself.我宁愿独自一人去做那件事。

I’d rather you came tomorrow.我倒想要你明天来。

I’d rather you had finished it yesterday.我倒想你昨天就做完了。

（2）否定形式：not置于rather之后。

I’d rather not say anything.我宁可什么也不说。

I’d rather not tell you about it.我倒想不告诉你为好。

（3）疑问形式：将would提到句首。

Would you rather give the chance up？ 你宁愿把机会放弃吗？

Which would you rather have，tea or coffee？ 你喜欢喝茶，还是咖啡？

（4）would rather构成的句式

would rather do ...than do ...宁愿……而不……

would do ...rather than do ...宁愿……而不……

prefer to do ...rather than do ...宁愿……而不……

I’d rather die than give in.我宁愿死，也不会屈服。

The boy would play computer games rather than do his homework.

男孩宁愿打电玩也不愿做作业。

I prefer to watch TV than play mah-jong.我宁愿看电视也不愿打麻将。

【提示】 than前后是同一动词时，可省略后面的动词，构成“平行结构”。

I’d rather play football than basketball.我宁愿踢足球也不愿打篮球。（名词+名词）

I’d rather go by bike than by bus.我宁愿骑单车也不愿坐公共汽车。（介词短语+介词短语）

I’d rather be healthy than rich.与其有钱，不如身体健康。（形容词+形容词）

I’d rather do it slowly than carelessly.与其粗心，还不如慢一点。（副词+副词）