little 与 a little修饰不可数名词,前者表否定,后者表肯定.We had little rain all summer.整个夏季都几乎没有下雨.rain“雨水”,为不可数名词,故用little来修饰.
few 与 a few修饰可数名词,前者表否定,后者表肯定.