改同义句
2个回答
2011-02-09
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had better(常简略为'd better)是一固定词组,had better最好,用于表示对别人的劝告、建议或表示一种愿望。其用法有以下几点:
一、had better后面必须跟动词原形。
had better后跟动词原形(即不带to的不定式),构成had better do sth.句型。
这里的had不能用have来替换。如:
You'd better go to hospital at once.你最好立即去医院看病。
Tom, you'd better go there today.汤姆,你最好今天去那儿。
二、主语不论是第几人称,句子不论是什么时态,都要用had better的形式。如:
Now you(he,we) had better listen to the teacher.你(他,我们)现在最好听老师讲。
三、had better可用于的时态。
1.had better用于指现在。如:
Now you had better listen to the radio.你现在最好听收音机。
You had better be quiet.你最好安静一些。
2.had better用于指将来。如:
You had better start tomorrow.你最好明天动身。
We had better buy the more expensive one. It will last much longer and so it will be cheaper in the end.我们最好还是买贵些的,它更经久耐用,所以到头来,它还是更便宜些。
3.had better用于进行式,表示讲话人提出建议时,动作正在进行。如:
We had better be watching the TV play.我们最好现在就看到电视剧。
We had better be starting back now.我们最好现在就动身回去。
4.had better have V-ed可表示本该做而没有做的事。如:
You had better have done it .如果你把那件事办妥就好了。(但实际上你没有那样做)
You had better have stayed with us .要是当时你和我们呆在一起多好啊。(实际上没有)
四、had better的否定式。如:
常用的否定形式是将否定副词not直接放在had better的后面。如:
You had better not miss the last bus.你最好不要错过末班公共汽车。
You had better not leave for Nanjing the day after tomorrow.你最好后天不要动身去南京。
注意:否定副词not绝不能放在had的后面。如:不能说:You hadn't better go.而应该说:You had better not go.
五、had better的疑问式。
had better通常不以普通疑问句的形式出现。但有时用于否定疑问句,常用Hadn't 主语 better...?结构,作为一种劝告形式,比肯定形式的语气更婉转一些。如:
Hadn't you better take an umbrella?你不认为该带一把伞吗?
Hadn't you better ask him first?你不认为该先问问他吗?
六、had better在反意疑问句中。
在反意疑问句中,疑问部分一般用had 主语?,但有时可用will you?表示一种请求或建议。如:
You'd better not go out today, had you? 今天你最好不要外出,好吗?
I must stay at home this afternoon. You had better come to my house, will you?今天下午我必须留在家里,你最好来我家,好吗?
七、在祈使句中,had有时可以省略。如:
Better not do it .最好别做那事。
Better not wait for them.最好不要等他们。
八、had better的被动式。
You had better do it.-
一、had better后面必须跟动词原形。
had better后跟动词原形(即不带to的不定式),构成had better do sth.句型。
这里的had不能用have来替换。如:
You'd better go to hospital at once.你最好立即去医院看病。
Tom, you'd better go there today.汤姆,你最好今天去那儿。
二、主语不论是第几人称,句子不论是什么时态,都要用had better的形式。如:
Now you(he,we) had better listen to the teacher.你(他,我们)现在最好听老师讲。
三、had better可用于的时态。
1.had better用于指现在。如:
Now you had better listen to the radio.你现在最好听收音机。
You had better be quiet.你最好安静一些。
2.had better用于指将来。如:
You had better start tomorrow.你最好明天动身。
We had better buy the more expensive one. It will last much longer and so it will be cheaper in the end.我们最好还是买贵些的,它更经久耐用,所以到头来,它还是更便宜些。
3.had better用于进行式,表示讲话人提出建议时,动作正在进行。如:
We had better be watching the TV play.我们最好现在就看到电视剧。
We had better be starting back now.我们最好现在就动身回去。
4.had better have V-ed可表示本该做而没有做的事。如:
You had better have done it .如果你把那件事办妥就好了。(但实际上你没有那样做)
You had better have stayed with us .要是当时你和我们呆在一起多好啊。(实际上没有)
四、had better的否定式。如:
常用的否定形式是将否定副词not直接放在had better的后面。如:
You had better not miss the last bus.你最好不要错过末班公共汽车。
You had better not leave for Nanjing the day after tomorrow.你最好后天不要动身去南京。
注意:否定副词not绝不能放在had的后面。如:不能说:You hadn't better go.而应该说:You had better not go.
五、had better的疑问式。
had better通常不以普通疑问句的形式出现。但有时用于否定疑问句,常用Hadn't 主语 better...?结构,作为一种劝告形式,比肯定形式的语气更婉转一些。如:
Hadn't you better take an umbrella?你不认为该带一把伞吗?
Hadn't you better ask him first?你不认为该先问问他吗?
六、had better在反意疑问句中。
在反意疑问句中,疑问部分一般用had 主语?,但有时可用will you?表示一种请求或建议。如:
You'd better not go out today, had you? 今天你最好不要外出,好吗?
I must stay at home this afternoon. You had better come to my house, will you?今天下午我必须留在家里,你最好来我家,好吗?
七、在祈使句中,had有时可以省略。如:
Better not do it .最好别做那事。
Better not wait for them.最好不要等他们。
八、had better的被动式。
You had better do it.-
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