3. The pianos in the other shop will be cheaper, but not ____ good.

　A. during　　　 B. as　　 C. so　　　 D. though　　　　　 E. both B and C

对比训练 4

2. He did the experient ____ he was told.

1. Child ____ she is, she know a lot.

3. Hardly had I finished my composition ____ the bell rang.

　 A. when　　 B. while　 C. as　 D. during

对比训练 3

2. She thought I was talking about her son, ____, in fact, I was talking about my son.

3. ____ a child, he lived in the countryside.

　 A. when　　 B. while　　 C. as

对比训练 2

We were about to leave____ it began to rain.

2. I met Lucy____ I was walking along the river.

1.　　　 ____ he heard this, he got very angry.

2、 Excuse me for breaking in, _________ I have some news for you.　 (NMET02)

　 A. so　　 B. and　　 C. but　　 　　　 D. yet

题1是主从复合句，所以中间不能使用并列连词 and; or; but; so 等。yet 是副词，只有 yet 可以与 though 连用。题2为并列句，而“Excuse …, but …”为一固定搭配。在复习中需要

细心的分析句子结构和成分。

对比训练 1

1、Though he is in his sixties, ______ he works as hard as a young man

　　　 A. yet　　　　 　　　 B. but　　　 　　　 C. and　　　 D. and yet