过去进行时
1.概念：过去进行时表示在过去某一时间正在进行的动作。
2.构成：过去进行时由“was／were 现在分词”构成。was用于主语是第一人称及第三人称单数的句子中，were用于主语是第二人称及其他人称复数的句子中
。3.过去进行时的基本句型(1)肯定句:主语 was／were 现在分词 其他.She was playing the piano at 6 a.m.yesterday.昨天早上6点她正在弹钢琴。(2)否定句:主语 was／were not 现在分词 其他.We weren't listening to music at that time.那时我们没在听音乐。(3)一般疑问句:Was／Were 主语 现在分词 其他?—Were you working on the farm at that moment?那时你们正在农场工作吗?—Yes,we were.／No，we weren't.是的，我们在工作。／不，我们没在工作。(4)特殊疑问句:疑问词 一般疑问句?What were you doing then?那时你们在做什么?
4.过去进行时的基本用法(1)表示过去某一时刻正在进行的动作。时间状语通常比较具体，如at 6 o'clock yesterday morning，at the time from 8 to 9 last Sunday，at this time last night等。My mother was cooking at seven yesterday evening.昨天晚上7点我母亲正在做饭。(2)表示过去某一段时间内正在进行的动作。She was reading a book all the morning.整个上午她都在读书。(3)用于含when或while引导的时间状语从句的主从复合句的主句或从句中。The Greens were having supper when I knocked at the door.我敲门时，格林一家正在吃晚饭。While I was walking in the park，I met Mr Zhang.我在公园散步时，遇见了张先生。
5.过去进行时与一般过去时的区别过去进行时强调动作在过去某一时刻或某一段时间内正在进行，而一般过去时表示在过去某个时间发生过的动作或存在过的状态，强调动作已完成。He was writing his composition last night.他昨晚在写作文。(不一定写完)He wrote his composition last night.他昨晚写了一篇作文。(已经写完)
例题讲解
例1 (2015·天津中考)—Why did the car hit the boy?
—Because the driver
on the phone at that time.
A.talk B.is talking
C.was talking D.have talked
解析
题干中at that time意为“在那时”，通常用于过去进行时态的句子中，故选C。
答案
C
例
2
(2014·内蒙古赤峰中考)—I called you at 8:00 yesterday evening,but no one answered.
—Sorry.I
clothes for my parents at that time.
A.wash B.washed
C.am washing D.was washing
解析
根据上文时间状语yesterday evening和下文时间状语at that time可知，答语应该用过去进行时。
答案
D
例
3
(2013·黑龙江齐齐哈尔中考)What
you
when the captain came in?
A.are;doing B.did;do
C.were;doing
解析
句意：队长进来的时候你在做什么？由句意可知主句要用进行时态，时间状语从句用了一般过去时，所以主句要用过去进行时。
答案
C
例
4
(2013·山东莱芜中考)—I didn't see you at the meeting yesterday.Why?
—I
for an important telephone call at that moment.
A.wait B.waited
C.am waiting D.was waiting
解析
因为等电话是昨天开会那段时间正在发生的动作，故用过去进行时表示。
答案
D
,
