a
What用于感叹句的几种句型：
1．What＋a／an／the＋名词
What a fool!真是个傻瓜!
What a pity!真是遗憾!
What the heck／dickens!（你讲的）什么玩意啊!
2．What＋名词
What luck!多幸运啊!What fun!多么好玩啊!
3．What＋（a／an）＋形容词＋名词
What funny stories!多么好笑的故事!
What terrible luck!太不走运了!
What a rotten day!多倒霉的一天!
4． What＋ a／an＋形容词＋名词（＋主语）＋谓语
What an enormous crowd came!来了多么大的一群人呀!
5． What＋名词＋主语＋谓语
What lovely flowers those are!那些花多美啊!