关于NEED和MUST还有DARE的反义疑问句用法

2个回答

  • dare和need作为情态动词(后接动词原形)的反意疑问句,疑问部分常用 need (dare ) +主语.

    We need not do it again,need we

    He dare not say so,dare you?

    当dare,need 为实义动词(敢,需要)时,疑问部分用助动词do + 主语.

    She doesn't dare to go home alone,does she?

    must特殊些

    当作"必须"时,用needn't提问

    You must go now,needn't you?

    当是mustn't(不允许,禁止)时,用must/may提问.

    You mustn't smoke here,must/may you?

    当must表推测,译为“一定,准是”时,要将句子改为i am sure that从句,反义疑问部分的动词形式根据be sure后的宾语从句的谓语动词形式决定.

    例如,You must be hungry→i am sure that you are hungry,aren't you?

    →原句变为You must be hungry,aren't you?