感叹句中什么时候用what和what a? have a good time 中的good time 不是不可数的吗?

先回答第二个和第三个问题抽象名词若代表一般性,为不可数 (如time,life,experience。。。等等)若具有特殊性的,则为可数[count] a period一段时间a long/short time:例:She thought about it for a long time。I had a good time today。这里的time作为一段时间,所以前面可加" a ",但这里time不能加" s" 喔time 加 "s" -->times 是指次数,回数 的意思,跟上面说的意思完全是不同的喔~例:How many times have you been to France?你去过法国几次?感叹句常用how或what + 其他成分构成。what用於修饰名词,若后接单数名词,用what a / an + 名词,否则用 what + 名词例:What a good student he is!What beautiful pictures they are!不过,省略型感叹句常省略主语或谓语例:What a good night!What bright stars!