can能力,may请求,must命令,should建议,can't猜测,mustn't禁止.请各造一

can能力,may请求,must命令,should建议,can't猜测,mustn't禁止.请各造一

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 betterI suggest that you should bring some pork tomorrow.He had better do something for his family, hadn't he?(注意Tag Question疑问尾句的变化)另外,情态动词必须带 [不加to的动词不定式] 也就是原形,因此 need to do/need doing的用法不属于情态动词(显然,need这时候有人称变化)要知道详细的用法, 请查阅一本好的语法书(A Practical English Grammar, 薄冰, .)======以下答案可供参考======供参考答案1:对need需要should't不应该You need to restYou shouldn't rest

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