例如：We were watching TV from seven to nine last night. 昨天晚上七点到九点的时候我们在看电视。
二、 过去进行时可以表示在过去某个时间点发生的事情。时间点可以用介词短语、副词或从句来表示。如：What was she doing at nine o‘clock yesterday? 昨天晚上九点她在做什么？
三．过去进行时的结构：
1. 过去进行时由“主语+was/were + 动词ing”构成
EX： We were having supper when the phone rang. 我们正在吃晚饭时电话响了。
2. 过去进行时的否定式由“主语+was/were not +现在分词”构成
EX： This time yesterday Jack was not watching TV. He was repairing his bike. 昨天这个时候，杰克不是在看电视，而是在修理自行车。
3. 过去进行时的疑问式由“was/were +主语+ 现在分词”组成
EX： Were you playing basketball at four yesterday afternoon? 昨天下午四点你们在打篮球吗？
练习题：
过去进行时选择填空：
( )1. What _____ your grandfather _____ this time yesterday ?
A.is ... doing B. was ... doing C. did .. do D. had ... Done
( )2. ____ you ______ a meeting at four yesterday afternoon ?
A. Were ... having B. Was ... having C. Did ... have D. Do ... have
( )3. His family _____ TV from ten to twelve last night .
A. watched B. were watching C. had watched D. was watching
( )4. Li Lei ______ a letter to his friend last night .
A.was writing B. was written C. will write D. Writes
( )5. You must tell us what you _______ at ten yesterday evening .
A.did B. was doing C. were done D. were doing
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