过去进行时的用法小结

过去进行时的用法小结
 
1. 表示在过去某一时刻或某一阶段正在发生的动作。如：
I was having a shower at that time. 那时我正冲澡。www.34en.com
2. 表示某个短暂性动作发生的背景。如：
I was reading the newspaper when the doorbell rang. 我正在看报，突然门铃响了。
3. 过去进行时在语境中的运用。如：
I waved to her but she wasn't looking. 我向她挥手但她没往这边瞧。
She didn't hear the doorbell. She was listening to the radio. 她没听见门铃响，她在听收音机。
注：与 always, forever, frequently 等副词连用，可表示某种感情的色彩。如：
She was forever complaining. 她老是抱怨。(厌烦)
She was always thinking of others. 她老是想到别人。(赞扬)