a/an+可数名词单数表种类与可数名词复数表泛指的区别

a/an+可数名词单数表种类与可数名词复数表泛指的区别

从集体名词本身看,family,class,team等被视为一个整体时,后用单,被视为构成整体的一个个 个体时,用复数
.但它们本身可说2个班,2个家庭表复数,从而有单、复数形式.
His family is a happy one.His family are all fond of stamp-collecting.There are 19 teams in our school.
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“有此意”时是可计数的,表几个和“一种”,物质名词常为 一份 之意.
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）
如要表“一件”这类概念,把不可数变为可数,就在前面加 a ..of 这种定语（物质名词及单位可数 也可用）不仅表示
数量也可表示形态.
a sheet of paper,a lump of sugar,a piece of furniture,a can of orange juice,a bowl of rice,a grain of
rice,a stick of chalk,a burst of applause,a fit of anger,a ray of hope,a stroke of good luck
两“份”咖啡 two coffees 也表“种” 各种各样的茶teas
表连绵不断 之意,水域 waters,沙漠sands 积雪snows
英语中有不少对词,一个可数,表具体的一件东西,另一不可数,表此类东西总称（使用时要注意转换）
a poem-poetry a machine -machinery a permit- permission a bag -baggage a job-work
至于一些可数名词在某些特定意思的搭配中也可表示抽象概念,从而成为不可数名词 你家庭负担太重了 you have
too much family.
从理论上说,任何名词都有单、复数及各种形式.
其实不该用“可数、不可数、零念”来划分名词,这是错误的,导致误解,很多东西并不能靠“能不能计数”这一准则,
要“抽象,与具体”,抽象则为不可数,具体则
为可数.1集体名词是这样,当表 整体意时为 抽象 不可数,表 成员 为具体时,可数.2 如decoration就为典型的
,表装修这个整体概念 抽象,the decoration of
your house is beautiful,当表房间的具体装饰物时为可数.3当butter bread表一个整体概念时 抽象,不可数,而
表分开意时,为复数（此又牵涉到主谓一致问题）
4如 activities活动,surroundings 环境为复数形式不可记数,实际也是当作一个整体抽象来看,一般抽象名词不加定
冠后,也就是零念的吧 5当名词从“量”角度考虑时为一个整体,抽象,而从 具体一个个“数”角度看,为可数,
thirty-three dollars!We never had so much to speak before.此论到主谓一致用is,也就是 thanks 用much
修饰的原因了 ,much thanks.He has much brains.问价时,much 还可放在单数可数名词前,这时亦指“量”,而
非“数”,there is not much garden left behind the house.There is not much point in going on.
作为学科,mathematics用作单数,但指数学运算时,用复.看“抽象,具体”“整体,个体”“量,数”