what,such,quite,rather修饰单数可数名词

what, such, quite修饰单数可数名词时，放在不定冠词前。

【例如】

What a mess!

I wrote quite a long letter to my parents.She is such a good teacher that every one likes her. rather修饰单数可数名词时，可放在不定冠词前后。中国考试资源大全

【例如】

This is a rather moving film. (This is rather a moving film.)such与so修饰单数可数名词时注意不定冠词的位置，常见结构为：such+ a/an+形容词+名词；so+形容词+a/an+名词。

【例如】

This is such a difficult task that we can't finish it within one week.He has so good a book that everyone comes to borrow it from him.