can能力,may请求,must命令,should建议,can't猜测,mustn't禁止.对吗?请各造一个句子

来源:百度知道 编辑:UC知道 时间:2024/05/26 03:23:10
need 和shouldn't表示什么?也请各造一个句子

首先, 必须澄清一下的是, 这些情态动词的用法是互相交叉的
因此, 你的分类并不全面

[常用的分类, 不包括全部情态动词]
1.能力
can/could (有时需使用be able to, manage to)
The baby can't(couldn't) dress himself.

2.许可
can/(could)/may/(might)
Can/May I watch TV tonight?
Yes, you can/may.

3.命令与禁令
must (not), will(军令式的粗暴命令), [shouldn't]
You mustn't play now!
You will finish the job tomorrow!
[据 Practical English Usage, 表示一种强制的,粗暴的命令, 就像预言未来必定发生的事件一般]

4.必要性
must, need, should, ought to, need (not)
Must/Need I come here tomorrow?
No, you needn't.
You should/ought to come here on time.

5.推测
can (not), could (not), must, might (not), may (not)
It can't be!
It must be Tom.
He may be in the office.

6.建议
[should 更常见于 虚拟语气中] had better
I suggest that you should bring some pork tomorrow.
He had better do something for his family, hadn't he?
(注意Tag Ques