精选优质文档-倾情为你奉上初中过去进行时态精讲及一、概念和用法: 1） 概念：表示过去某时正在进行的状态或动作。2） 过去进行时的主要用法是描述一件事发生的背景；一个长动作发生的时候，另一个短动作发生。3) 常用的时间状语this morning, the whole morning, all day yesterday, from nine to ten last evening, when, while例如：We were watching TV from seven to nine last night. 昨天晚上七点到九点的时候我们在看电视。 What was he researching all day last Sunday? 上周日他一整天都在研究什么？ My brother fell while he was riding his bicycle and hurt himself. 我哥哥骑自行车的时候从车上摔下来，受伤了。It was raining when they left the statio
