语言是随时间变化的。

_______ fun it is to watch a 4D movie!

A. What B. What a C. How D. How a

这是之前一位同学的提问。标准答案是 A。

但是这里有个问题，就是 fun 同时也是形容词，为什么 How fun 在语法上就是错误的。我当时也只找到一个不太有说服力的解释。

今天，我找到了一个更有说服力的说法。

fun 这个词最开始的词性就是名词，所以，用 what fun 是语法上最正确的。

但是，后来 fun 这个词的词性发生变化了，多了形容词的词义。也就可以用 how fun了。

从下面数据中，我们可以看到，1980年以前，很少有人用 how fun 这样的说法。后来慢慢就多起来了。

For our children and families, Happy Halloween!
Many thanks to our phenomenal teachers and directors! They organized a fun day that means a lot to our children this year.❤️
亲爱的孩子们，万圣节快乐！
希望不止是力迈蒙特梭利三个校区的孩子，今天所有的孩子都开开心心有糖吃！

丹麥人的幽默[攤手]
(谷狗英翻)
"I was in the editing room, and when Lance Henriksen (who plays his father, Willis, ed.) Said something violent, I and my Danish associate producer laughed maybe a little more of it than the others. "Shut up, how sick are you!", They said, Viggo Mortensen says and continues:

When I explained what we were laughing at, they just replied, "Ah. It is not that funny." Then I had to explain to them that if something is really fun for a Dane, it is probably not very fun in reality. It should be totally unnecessary, and then the one who tells the joke should laugh the most."
#viggo mortensen#