既能修饰可数名词又能修饰不可数名词的词语有

既能修饰可数名词又能修饰不可数名词的词语有：
a lot of，lots of，plenty of （以上三个词语后谓语动词的数依of 后的名词的单复数而定），a great / large quantity of (其后谓语用单数)，quantities of (其后谓语用复数）。

例如:
There is still lots of snow in the garden。

花园里还有许多雪.
There is plenty of rain here.
这儿的雨水很多.
A great quantity of flowers was placed in the hall.
大厅里放了很多鲜花。

There are large quantities of food in the cupboard.
橱柜里有许多食物。

在所有这些表示“很多”的词语中many, much 是最常用的词,它们既可以用于肯定句,也可以用于疑问句和否定句.例如:
Are there many people in the street?
街上有很多人吗?
There isn't much time left.
剩下的时间不多了.
其它的词语都用于肯定句,日常会话中常用lots of, a lot of 或plenty of; 正式文体中常用a great many，a （large) number of, a great deal of, scores of 或dozens of 等。

但若肯定句中有too，so，as，very或how 等词修饰时,则必须使用many，much。

例如：
The number of the people who lost their homes reached as many as 250,000。

无家可归的人数多达250，000人。

There is too much work to do。

要做的工作太多了.。