结构：What +a /an + 形容词 + 名词 + 主语 + 谓语+!
What a beautiful girl she is !
What + 形容词 + 名词 +主语 +谓语+!（是针对不可数名词或可数名词复数）
What strange ideas you have !
How +adj (系动词） / adv (行为动词）+主语 +谓语 +!
How careless she is !
How fluently she speaks Chinese !