抽象名词用于特指时,前面可以加定冠词不?只能加不定冠词?那具体名词特指时什么时候加不定冠词或定冠词?

特指的两种形式：
the+[c]pl.(可数名词的复数形式)
the+[u](不可数名词)
另外 名词后面有介词短语（I like the view from the window）分词短语（The milk sold in the shop is not fresh）定语从句（The girl who lives next door is calld Rose）,要在这些名词前面用the
关于the,给你个口诀
要加the的
"独一无二除火星,山河湖海岛漠区,发明族国船乐器."
世界上独一无二的 the sky,the moon但是火星只能说 Mars;
第二句懂吧= =the Changjiang River/the Yangtze River都表长江 the Yellow River黄河,但是用到Mount时没有the Mount Tai=the Tai Mountain泰山;
发明物：The light was invented in China= =,
民族或国际的形容词前,表整个名族或该国人：The Chinese are hard-working and clever.
船舶名the Titanic,
乐器the piano
不加the的
"球棋年月季星期,语言除非language,身份表宾补同语,三餐学科通讯器"
球类运动,棋类运动,年月份季节星期；
表语言的名词单独使用时不加冠词,与language连用要有the：Chinese is hard to learn.The Chinese language is hard to learn;
表示身份头衔独一无二的职务等作表语宾语补语和同位语,不用冠词：Americans elected George Bush President of America;
一日三餐,有形容词时可以用冠词.It's time for lunch.It's a wonderful lunch.
学科名词
by+交通工具,通讯工具by car by phone