英语冠词是现代英语十大词类之一，它的数量是英语词类中最少的，因此，往往被读者所忽视。但它的用法乎变万化丰富多彩，在听、说、读、写中都离不开了它。本文对冠词的来源及其用法作了较详尽的论述，尤其是对名词前冠词用法的取舍，列举了大量的例句，以便读者举一反三，能掌握其精神并灵活运用。遇有英、美对冠词的不同用法，也作了相应的说明。 English article is one of the ten major modern English phrases, the number of which is the least English part of the word, therefore, often overlooked by the reader. However, its usage varies widely and colorfully, and can not be separated from it in listening, speaking, reading and writing. This article makes a more detailed discussion of the origin of the article and its usage, especially for the choice of noun terms, and lists a large number of example sentences so that the readers can learn from one mannerism and grasp the spirit and use it flexibly. In the United Kingdom, the United States on the article’s different usage, also made the corresponding description.