3.常考的单复数同型的名词

　　aircraft spacecraft series species means sheep deer bison salmon trout carp

　　4. 常考的可数名词

　　discovery cloud mineral metal substance population effort effect animal plant mammal insect tree herb shrub

　　element function feature picture result clue star reason audience device structure human human being

　　system fashion resource source origin pioneer automobile purpose style response number amount

　　variety quantity type kind influence emotion change

　　5. 即可数又不可数的名词

　　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

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