过去进行时语法PPT课件
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语法精讲八:动词时态(三)过去进行时一、定义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。
Eg. I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。
二、构成句式1.肯定形式:主语+was/were+V-ing2.否定形式:主语+was not (wasn't)/were not (weren't)+V-ing3.疑问形式:Was/Were+主语+V-ing三、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,Eg. What were you doing at 7p.m. yesterday? 昨天晚上七点你在干什么?I was cooking when she knocked at the door. 她敲门时我正在做饭。
2.当两个一长一短的动作在过去某时间同时发生时,用过去进行时表示较长的动作。
过去进行时可用于主句,也可用于从句。
Eg. It was raining hard when I left my office. 当我离开办公室时,雨下得正大。
They were watching TV when the lights went out.停电时,他们刚好在看电视。
3.过去进行时表示过去将来的动作Eg. She went to see Xiao Li. He was leaving early the next morning.她去看小李。
他第二天一早就要离开此地了。