精选优质文档-倾情为你奉上新概念英语第三册语法总结:冠词不定冠词:不定冠词a用来表示可数名词的单数形式,用于辅音音素前,an用于元音音素前。如:a person, a day, an hour, an old man.定冠词用法:1用于双方都知道的名词前:Please clean the classroom.2用于单数名词前,表示一类人或物:The horse is a useful animal.(马是有用的动物)This is a very hard job for the teacher.(对于老师这是一项很难的工作。)3用于世界上独一无二的东西前:the sun, the spring.4用于方位名词前:People in the west like coffee very much.5用于乐器名词前:play the violin6用于计量单位前: is sold by the .7形容词最高级和序数词前:This is the easiest way to work out the pro