what lovely weather we are having these days 为什么用what?

what lovely weather we are having these days 为什么用what?
what lovely weather we are having these days 为什么用what?

what lovely weather we are having these days 为什么用what?
答案是：what引导的感叹句的公式是：what +a/an +adj(形容词）+n（名词）+主语 +谓语+其他!当名词是不可数或者是名词复数时,就要把上面公式中的 a或者an 去掉,因此本题中的weather是不是可数名词,所以只能填写what ,类似的还有：what delicious food we had today !我们今天吃的食物很美味!尊重劳动,欢迎提问,