(完整word版)辨析when与while

when&while用法辨析

总结：

1. when 的用法比while要广，一般都可用when。

2. 有两种情况通常用while：

1）如果从句和主句的动作同时发生，两句都是过去进行时，通常用while。

They were singing while we were dancing.

2）前后两句表示对比，这时while表示“而”、“却”。

He is strong while his brother is weak.

用when, while填空：

1. I was listening to the radio _________ he came in.

2. ___________ the teacher came in, we were talking.

3. _________ he came back, I was doing some washing.

4. I was cooking dinner __________ they came home.

5. He fell asleep ____________ he was reading.

6. He asked me a question ____________ I was speaking.

7. Jim hurt his arm ____________ he was playing tennis.

8. ______________ she was waiting for the train, she became very impatient.

9. He was watching TV _____________ she was cooking.

翻译句子：

1. 她进来时我在看电视。

2. 当我在看电视的时候，他正在看书。

3. 我们到达时正下着大雨。

4. Mary在回家的路上，这时两个男孩拦住了她。

5. Lily个子高，Lucy个子矮。

Keys:

用when, while填空：

1. I was listening to the radio when he came in.

2. When the teacher came in, we were talking.

3. When he came back, I was doing some washing.

4. I was cooking dinner when they came home.

5. He fell asleep when / while he was reading.

6. He asked me a question while /when I was speaking.

7. Jim hurt his arm while /when he was playing tennis.

8. When / While she was waiting for the train, she became very impatient.

9. He was watching TV while she was cooking.

翻译句子：

1. She entered the room while /when I was watching TV.

2. While I was watching TV, he was reading.

3. It was raining hard when we arrived.

4. Marry was on her way home when two boys stopped her.

5. Lily is tall while Lucy is short.