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!
What后面跟名词引导的感叹句,How后面跟形容词或者副词引导的感叹句
格式如下:
what+(a/an)+(adj)+n.+主语+谓语+...
how+adj/adv+主语+谓语+...
what引导的感叹句强调的重点为名词.
What a big mouth! /
how引导的感叹句强调的重点为形容词.
How big the mouth is! /
what+(a/an)+(adj)+n.+主语+谓语+其他成分!
how+adj/adv+主语+谓语+其他成分!