冠詞是一種虛詞，只能附着在名詞上幫助說明名詞的含義。
冠詞分爲定冠詞(the)和不冠詞(a或an)兩類，定冠詞表示特指，不定冠詞表示泛指。
a用於讀音以輔音開頭的詞前面，an用於讀音以元音開頭的詞前面。
如：a university， a useful book， an umbrella， a horse， an honest man.
一、不定冠詞的基本用法
1.表示“一”的含義。
Give me a pen please.
We go shopping twice a week.
2.泛指某個人或東西。
Yesterday we visited an English secondary school.
She picked up a magazine and began to read.
3.表示一類人或東西。
He works as a language teacher in that university.
As a writer， he is successful.
Even a child can answer this question.
可數名詞單數出現，泛指用不定冠詞，特指用定冠詞。一個可數名詞的單數不能自己單獨出現。
二、定冠詞的基本用法
1.表示特定的人或東西。
Give me the magazine.
Have you decided on the prices yet?
The book on the table is an English dictionary.
Beijing is the capital of China.
2.複述前文提到的'人或東西。
Last week， I saw a flim. The film is about a love story between two middle-aged people.
The old man saw a house in the field. He went into the house and found a beautiful girl sitting there and singing.
5.用於序數詞、方位名詞、形容詞與副詞的最高級前面，副詞最高級前面的the 可以省略。
January is the first month of the year.
The sun rises in the east.
Japan lies to the east of China.
Beijing lies in the north of China.
Ireland lies on the Great Britain.
At the Children's Palace， some children learn to play the piano， others learn to play the violin.
Last week we went to the theatre.
Among the three girls she speaks English the best.
“東、南、西、北”作副詞時，前面不加冠詞。
We are walking south.
形容詞最高級前若有物主代詞，就不加定冠詞。
Monday is my busiest day.
7.不可數名詞前面通常不加定冠詞，但若有限制性定語修飾，或表示特定部分、特定內容時，前面需加定冠詞。
Drink some water.
Is the water in the well fit for drink?
He can't take the advice his mother gives him.
三、不加冠詞的基本規則
1.季節、月份、日期前一般不加冠詞。
If winter comes can spring be far behind?
We have few classes on Sunday.
10.1 is National Day.
2.表示球類、棋類、三頓飯的名詞前通常不加冠詞，但樂器前需加定冠詞。
What did you have for lunch?
Dinner is ready.
Let's go and watch them play chess.
My elder brother likes to play football.
The boys are learnig to play the guitar.
play the piano
play the violin
