【例如】?There are some chickens in the yard.(院子里有几只鸡。)?Would you like chicken or fish?(你喜欢吃鸡,还是吃鱼?)?
物质名词或抽象名词一般是不可数的,但用来表示若干类和数量之多时,可转化为可数名词,但往往意义有所变化,如:water(水)→waters(水域),sea(海)→seas(海域)?
【再如】?
Beer is a kind of nice drink in hot summer.?
I had two beers and a big bowl of beef.?
当抽象名词表示“某一种”或“某一方面”的抽象概念时,其前可加a/an.?【例如】?
What he did showed a certain honesty which made me admire him.