二、 结构
1、肯定句:主语+was/were + doing+其它
如:I was watching TV at nine last night
昨天晚上9点我在看电视
2、否定句:主语+was/were + not+doing+其它
如:I was not watching TV at nine last night
昨天晚上9点我没有看电视
3、一般疑问句:was/were+主语+doing+其它?
Were you watching TV at nine last night? Yes,I was. / No,I wasn’t.
你昨天晚上9点在看电视吗?
4、特殊疑问句:特殊疑问词+ was/were+主语+doing+其它?
What were you doing at nine last night? 昨天晚上九点你在做什么?
5、时间标志
at+具体时刻+过去时间(at five last Saturday)
at this time+过去时间(at this time yesterday)
过去时间段(from nine to ten last evening)