how nice flowers they are!改错句子为什么将how改为what?

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how nice flowers they are!改错句子为什么将how改为what?
how nice flowers they are!改错句子为什么将how改为what?

how nice flowers they are!改错句子为什么将how改为what?
1.这就牵涉到what/how引导感叹句的区别了.
2.其中,how单独修饰形容词/副词,剩下部分是一个完整的句子(只缺少这个被how修饰的形容词/副词).
如果此句用how,则去掉how nice之后,句子为flowers they are.
这个句子明显不对,因为它有两个主语flowers和they.
此时需要改成:How nice the flowers are!→ The flowers are (how) nice.
3.而what是修饰名词的,只不过大多数情况下名词还会被别的形容词所修饰.
去掉“what...名词”之后,句子也是比较完整的(缺少被what所修饰的名词而已).
所以此句为:What nice flowers they are!→ They are (what nice) flowers.

因为how后面要跟形容词或副词,而what要跟名词.

what nice flowers they are

how后加不可数名词,what后可以接可数名词,flower用的是复数形式,所以用what.