意思都是“很多,大量”
只能修饰可数名词的:a large/ great/ good number of, a good/ great many, dozens of, scores of, quite a few
只能修饰不可数名词的:a great deal of, a large amount of, quite a little,a large sum of
既可修饰可数也可修饰不可数名词的:plenty of, a lot of, lots of, a large quantity of, a good supply of
但是a number of不能修饰不可数名词。
plenty of ,a lot of ,lots of ,a quantity of ,quantities of,a supply of ,supplies of, a mass of, masses of可与可数名词和不可数名词连用
a number of ,a variety of , varieties of, a good/great many 后接可数名词复数a good/great many of 后面的名词复数前要有the/these/those/one's
a great amount of, amounts of ,a great/good deal of 后接不可数名词 a sum of 修饰货币
a lot of= lots of 后面可以接可数名词复数或不可数名词(建议考试用这个)
many + 可数名词复数
much / a number of / a great deal / a mount of + 不可数名词
many/much, a lot of, numerous, abound, plenty of, huge amounts of, loads of, abundant in, a great deal of