2、指谈话双方都知道的人或事物。如：

　　　 Where is the teacher?

　　　 Open the window, please.

1、特指某(些)人或某(些)事物。这是定冠词the的基本用法。如：

　　　 Beijing is the capital of China.

　　　 The pen on the desk is mine.

5、用在抽象名词前，表具体的介绍--a + 抽象名词，起具体化的作用。如：

　　　 This little girl is a joy to her parents. 这女孩对她父母来说是一个乐趣。

　　　 It is a pleasure to talk with you. 跟您交谈真是一件愉快的事情。

　　　 It is an honour to me to attend the meeting. 参加这个会，对我来说是一种荣誉。

4、用于某些固定词组中。如：

　　　 a bit, a few, a little, a lot of, a piece of, a cup of, a glass of, a pile of, a pair of, have a good time, for a while, for a long time等。

3、表示数量，有“一”的意思，但数的概念没有one强烈。如：

　　　　　　　 I have a mouth, a nose and two eyes.

2、指某人或某物，但不具体说明何人或何物。如：He borrowed a story-book from the library.

　　　　　　　 A Wang is looking for you. 一位姓王的同志正在找你。

1、指人或事物的某一种类(泛指)。这是不定冠词a (an)的基本用法。如：She is a girl. I am a teacher. Please pass me an apple.

15. Having a trip abroad is certainly good for the old couple, but it remains________ whether they will enjoy it.

　 A. to see　　 B. to be seen　 C. seeing　　 D. seen

Key:C D D A C; B B D D A ; B C C B B

14. ---You don’t look very ________. Are you ill?

　 ---No, I am just a bit tired.

　 A. good　　 B. well　　　 C. strong　　 D. healthy

13. What he said sounds _______.

　 A. nicely　　　 B. pleasantly　　 C. friendly　　 D.wonderfully