____cold weather it is?选哪个how,how a ,what,what a____cold weather it is?选哪个how,how a ,what,what 为什么?what 与 how 引导的感叹句有什么区别?

how cold the weather is
what cold weather it is
不用a 因为weather 不可数

____cold weather it is! 选哪个how,how a ,what,what a
---选What [cold weather是名词短语，因此用 what,又由于weather是不可数名词，前面不加a 。]
what 引导名词,包括复数和不可数,可数
what a beautiful day!
what beautiful flowers they are!
what clean water it is!
而how 引导副词形容词.
how beautiful the day is !
how beautiful the flowers are!
how clean the water is!

选what
what cold weather it is
不用a 因为weather 不可数
如果用how
how cold the weather is
不加it
感叹句通常有what,how引导,表示赞美、惊叹、喜 悦、等感情.
what修饰名词,how 修饰形容词,副词或动词,感叹句结构主要有以下几种：
掌握它的搭配,即掌握了感叹句的重点.
How +形容词+ a +名词+ 陈述语序
How+形容词或副词+ 陈述语序
What +名词+ 陈述语序
What+a+形容词+名词+ 陈述语序
What+ 形容词+复数名词+ 陈述语序
What+ 形容词+不可数名词+ 陈述语序
也就是what + a/an + adj.+ n.+ 主语 +谓语
how + adj.+ a/an/the + n.+ 主语 +谓语
How clever a boy he is!
How lovely the baby is!
What noise they are making!
What a clever boy he is!
What wonderful ideas (we have)!
What cold weather it is!
感叹句的省略形式为：
What a clever boy (he is)!

给你两个例句
HOW COLD THE WEATHER IS!
WHAT A COLD WEATHER IT IS!
感叹句要用"!",不是"?"