1 1 过去进行时的讲与练 过去进行时表示过去某一时刻或者某段时间正在进行或发生的动作,常和表过去的时间状语连用,如: I was doing my homework at this time yesterday
昨天的这个时候我正在做作业
They were waiting for you yesterday
他们昨天一直在等你
过去进行时的构成: 肯定形式:主语+was/were+V-ing 否定形式:主语+was not (wasn't)/were not (weren't)+V-ing 疑问形式:Was/Were+主语+V-ing
基本用法: 1
过去进行时表示过去某一段时间或某一时刻正在进行的动作
常与之连用的时间状语有,at that time/moment, (at) this time yesterday (last night/Sunday/week…), at+ 点钟+yesterday (last night / Sunday…),when sb
did sth 等时间状语从句,如: What were you doing at 7p
yesterday
昨天晚上七点你在干什么
I first met Mary three years ago
She was working at a radio shop at the time
我第一次遇到玛丽是在三年前,当时她在一家无线电商店工作
I was cooking when she knocked at the door
她敲门时我正在做饭
when 后通常用表示暂短性动词,while 后通常用表示持续性动词,因此它所引导的状语从句中,谓语动词常用进行时态,如: When the car exploded I was walking past it