二．冠詞冠詞分為不定冠詞（a, an），定冠詞（the），和零冠詞。I.不定冠詞的用法：
1 指一類人或事，相當于a kind of A plane is a machine that can fly.
2 第一次提及某人某物，非特指 A boy is waiting for you.
3 表示“每一”相當于every，one We study eight hours a day.
4 表示“相同”相當于the same We are nearly of an age.
5 用于人名前，表示不認識此人或與某名人有類似性質的人或事 A Mr. Smith came to visit you when you were outThat boy is rather a Lei Feng.
6 用于固定詞組中 A couple of, a bit, once upon a time, in a hurry, have a walk, many a time
7 用于quite, rather, many, half, what, such之后 This room is rather a big one.
8 用于so(as, too, how)+形容詞之后 She is as clever a girl as you can wish to meet.
II. 定冠詞的用法：
1 表示某一類人或物 The horse is a useful animal.
2 用于世上獨一無二的事物名詞前 the universe, the moon, the Pacific Ocean
3 表示說話雙方都了解的或上文提到過的人或事 Would you mind opening the door?
4 用于樂器前面 play the violin, play the guitar
5 用于形容詞和分詞前表示一類人 the reach, the living, the wounded
6 表示“一家人”或“夫婦” the Greens, the Wangs
7 用于序數詞和形容詞副詞比較級最高級前 He is the taller of the two children.
8 用于國家黨派等以及江河湖海，山川群島的名詞前 the United States, the Communist Party of China, the French
9 用于表示發明物的單數名詞前 The compass was invented in China.
10 在逢十的復數數詞之前，指世紀的某個年代 in the 1990’s
11 用于表示單位的名詞前 I hired the car by the hour.
12 用于方位名詞，身體部位名詞，及表示時間的詞組前 He patted me on the shoulder.
III. 零冠詞的用法：
1 專有名詞，物質名詞，抽象名詞，人名地名等名詞前 Beijing University, Jack, China, love, air
2 名詞前有this, my, whose, some, no, each, every等限制 I want this book, not that one. /Whose purse is this?
3 季節，月份，星期，節假日，一日三餐前 March, Sunday, National Day, spring
4 表示職位，身份，頭銜的名詞前 Lincoln was made President of America.
5 學科，語言，球類，棋類名詞前 He likes playing football/chess.
6 與by連用表示交通工具的名詞前 by train, by air, by land
7 以and連接的兩個相對的名詞并用時 husband and wife, knife and fork, day and night
8 表示泛指的復數名詞前 Horses are useful animals.