问英语感叹句型题?（how） different life today is（from）it was 30 years ago 第一个空为啥不是what?

问英语感叹句型题?
（how） different life today is（from）it was 30 years ago 第一个空为啥不是what?

1.how单独修饰形容词/副词.
如果去掉how,把其修饰的形容词副词放回其后的成分,它必须是一个完整的句子.
此题如果去掉How,把different拉回,即为：
Life today is different from it was 30 years ago.
这就是一个完整无误的句子.
2.而what修饰的是名词,只是有时名词前还会有其他形容词修饰而已.
判断原则为：去掉what,把名词（和修饰它的形容词）放回剩下的部分,必须也能构成一个完整的句子.
此题如果是用what,则去掉what,然后把different life一起放回句子,为：
today is different life from it was 30 years ago.
此句明显错误.

How后面直接跟形容词，What后跟名词，若题变为a different，则填What.记住这个例句：How beautiful the girl is! What a beautiful girl!

How 是对程度提问的，如果用What的话，这句话估计就要改成What is the difference between the lift today and that of 30 years ago了

应该是what 啊！what修饰名词，how 修饰形容词啊！what a beautiful park it is!或者how beautiful the park is!