中考英语请教老师!you can't /need't be serious.你不是开玩笑吧.能用need't
问题描述：
中考英语请教老师!you can't /need't be serious.你不是开玩笑吧.能用need't
关于情态动词,
1.Would you come to my birthday party tomorrow evening?I'm afraid I( wouldn't 还是can't.)Ihave to look after my sister.为什么不用 can't.)
2.May I put my bike here?No,you(couldn't /-mustn't) .you should put it over there.
为什么不用couldn't
答
you can't be serious. 很口语化换成need't意思变成,你不必如此严肃.第一个是不能,不可以.can 一表能力,二表允许第二个是不需要.need 需要无强制性 .通常和must、have to一同考察 考点1：以must（有强制性且主观)引...