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1、What were you doing at nine yesterday?I was sleeping at that time.Were you sleeping at that time?Was he/she sleeping at that time?Yes,I was.No,I wasnt.Yes,she was.No,she wasnt.1.基本概念基本概念 过过去去进进行行时时表示在表示在过过去某一去某一时时刻或一段刻或一段时间时间内正在内正在进进行的行的动动作。作。2.结结构构 was/were+动词动词-ing例如例如:A:What were you doing at eig
2、ht last night?昨晚八点你在干什么？昨晚八点你在干什么？B:I was taking a shower.我我(当时当时)在淋浴。在淋浴。A:What was he doing when the rainstorm came?暴风雨来的时候他在干什么？暴风雨来的时候他在干什么？B:He was reading in the library when the rainstorm came.暴风雨来的时候他在暴风雨来的时候他在图书馆看书。图书馆看书。A:What was Jenny doing while Linda was sleeping?琳达在睡觉的时候琳达在睡觉的时候,珍妮在做什
3、么？珍妮在做什么？B:While Linda was sleeping,Jenny was helping Mary with her homework.琳达在睡觉的时候琳达在睡觉的时候,珍妮在帮助玛丽做珍妮在帮助玛丽做作业。作业。肯定式：肯定式：I/He/She/It was working.We/You/They/were working.否定式否定式:I/He/She/It was not working.We/You/They/were not working.3.句式句式(以以work为为例例)疑疑问问式和式和简简略回答略回答:Was I working?Yes,you were.N
4、o,you were not.Were you working?Yes,I was.No,I was not.Was he/she/it working?Yes,he/she/it was.No,he/she/it was not.Were we/you/they working?Yes,you/we/they were.No,you/we/they were not.注：注：1)Was not 常常缩缩略略为为 wasnt;were not 常常缩缩略略为为 werent。2)一般一般过过去去时时与与过过去去进进行行时时用法的比用法的比较较:一般一般过过去去时时表示在表示在过过去某个去某个时
5、时间发间发生生过过的的动动作或存在的状作或存在的状态态,而而过过去去进进行行时则时则表示在表示在过过去某一去某一时时刻刻或某一段或某一段时间时间正在正在进进行的行的动动作。作。例如例如:David wrote a letter to his friend last night.大大卫卫昨晚昨晚给给他的朋友写了封信。他的朋友写了封信。(信写完信写完了。了。)David was writing a letter to his friend last night.大大卫卫昨晚一直在昨晚一直在给给他的朋友写信。他的朋友写信。(信不信不一定写完。一定写完。)at five yesterday afternoon