sugar , cloth , water , detail , paper ,work , light , science ,form , interest , art , area ,color , disease , illness , rock , stone ,matter , food , culture ,noise , liquid , solid , gas , climate , film ,material , population ,temperature,experience ,speech ,use
time , life , action , activity , study
rock(砂岩) rocks(块岩) work(工作,作品) works(著作) paper(纸) papers(论文,报告,文件)
area(面积) areas(地区,区域) time(时间) times(次数) room(空间) rooms(房间) water(水) waters(水域)
collections由同一种物品构成,可数 his three collections of short stories
collection 由不同种物品构成,不可数 his art collection
※当一个不可数名词表种类时,可数。
可数/不可数 :①有无数的概念②抽象/具体 advertisment 广告可数 advertising 广告业 不可数