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7．在江河、海洋、山脈、湖泊、群島的名稱的前面，如：

　 the North China Plain

　 the Rocky Mountains

　 the Yangtse River

6．用在某些專用名詞前， 如：

　 the Great Wall

　 the People’s Republic of China

　 the United Nations

　 the Netherlands

5．用在某些名詞化的形容詞或過去分詞前，表示一類人或事物， 如：

　 the rich, the sick, the new , the false, the wounded

4．用在序數(shù)詞和形容詞最高級(jí)前,以及在方位詞前。如：

　 The Nile is the longest river in the world.

　 He won the first prize.

The sun rises in the east.

3．指前面提到過的人或事物，如：

　 Here is a picture of a modern car factory. My father works in the factory.

2．特指某(些)人或某(些)事物，如： 　　　 The girl in red is my sister.

　 The man over there is our English teacher.

　 The book on the desk is mine.

1．指彼此都知道的人或事物，如： 　　　 Open the door, please. 　　　 Go and close the window.

5．用于某些固定詞組中，如：

　 a few, a little, a lot of, a number of, just a minute, in a hurry, for a while, for a long time, a cup of, a bottle of, have a rest, have a talk, have a fever, have a good time, have(take) a walk,　 have a toothache, take a bath, give a lesson

(二)定冠詞

定冠詞的用法如下：

4．表示數(shù)量，有“一”的意思，如：

　 Behind the house there is a garden.

　 once a week.

3．泛指某人或某物，但未具體說明何人、何物，如：

　 A boy is waiting for me.

Give me a pen, please.