4．A．同上。

3．A．同上。

2．A．同上。

1．D．前后两个分句意思相反，表转折，应用but

18．He is listening to the music ____ he is washing clothes

　A．after

　B．before

　C．that

　D．while　

参考答案

17．The boy is only ten, ____ he can do some washing himself

　A．though

　B．but

　C．or

　D．so

16．That was our firtst lesson, ____ she didn't know all our names

　A．for

　B．but

　C．so

　D．or

15．We bought Granny a present, ____ she didn't like it.

　A．but

　B．and

　C．when

　D．if

14．Jim is an American, ____ he can speak very good Chinese.

　A．if

　B．so

　C．but

　D．because

13．Be quick, ____ you'll be late for the football match.

　A．so

　B．but

　C．and

　D．or