a (great/good) many +可数名词复数 a (large)number of + 可数名词复数 a few + 可数名词复数 a little +不可数名词 a large amount of + 不可数名词 a (great) deal of + 不可数名词 a lot of + 可数名词复数/不可数名词 plenty of + 可数名词复数/不可数名词 a (large) quantity of + 可数名词复数/不可数名词 下面还有几句歌诀,帮助记忆: (当中只出现短语中的中心词) little amount 不可 deal;(这三个中心词的短语是修饰不可数名词的) many number 可 few; (这三个中心词的短语是修饰可数名词复数的) lot plenty quantity 可不可;(这三个中心词的短语可以修饰可数名词复数,也可修饰不可数名词) little many few 无 of.(这三个中心词的短语后面没有of)
只加可数:a good/great many of a large number of numerous of dozens of 只加不可数 a grest deal of a large amount of 两个都行: a lot of lots of quantities of/a great quantity of plenty of