不可数.a cup of milk ,a milk ,一杯牛奶,一份牛奶时就可数,知道了么,英语应用起来比较随意的
抽象名词本不可数,前不加任何冠词,后用单数形式.we long for freedom.但有定语修饰或有特定具体内容时可
加the I didn't have the courage to tell you.We enjoyed the beauty of nature.Bob spoke the truth.
抽象名词有些在表 “几种”,“几份” 的时候是可数的.
the visit is a failure.His plan ended in failure.Christianity and Islam are two different religious.Religin
meats more and more to her.
it's a pleasure to work with you.I have a respect for my mother.There is a beauty in simplicity.His son is
a trouble to him.It'll be a great happiness to read them.
we long for freedom.
有些词不同形式有不同意思 如 experience经验,experiences经历 decoration表抽象意义的装修,decorations
表（房内）具体的一件件装饰物
有些抽象、物质名词表抽象概念时是不可数名词,而表示具体事物时则为可数 youth 青春 a youth 一个青年人
relation 关系 a relation一位亲戚 必要性necessity 必需品a necessity
glass玻璃 a glass一个玻璃杯 ,copper铜 a copper 一个铜币,tin锡 a tin一个铁罐 paper纸 a paper报纸、证片
（chopping wood enter a wood 表不同意思当然为不同词类,of course）
