修饰可数:a(good/large/many/great)number of/numbers of;many(注:a great many=a number of)
修饰不可数:much;a (great) deal of(+ 名词)(a great deal后加形容词);a bit of(+名词)(a bit后加形容词);(an)(large)amount of/amounts of
可数不可数皆可(谓语动词随修饰的名词):a (large)quantity of/quantities of(注:quantities of是个例外.无论其修饰可数不可数,谓语动词一律用复数);a lot of/lots of;plenty of;masses of;a pile of/piles of
这个是我高中三年完完全全自己总结的,很不错吧.