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会计学学习分层目标：It’s2o’clockintheafternoonnow.Marycooknow.WhatweretheydoingatfourlastSunday?6:00pm1.昨天的这个时候我正在做作业。常用的时间状语有:肯定句：

否定句:

一般疑问句:



特殊疑问句:肯定句：主语+was/were+doing
Hewassinging.
否定句：主语+was/were+not+doing
Hewasn’tsinging.
一般疑问句:Was/Were+主语+doing?
Yes,主语was/were.No，主语wasn’t/weren’t.
Washesinging?Yes,hewas/No,hewasn’t.
特殊疑问句:
特殊疑问词+was/were+主语+doing?
Whatwashedoingatthistimeyesterday?---What_________________now?
---He’s_______________.
---Washe___________________________atthistimeyesterday?
---No,hewasn’t.
---What________________atthattime?
---He
_____________________________________________.
Whatwerethechildrendoingwhentheteachercamein?1.过去进行时+when+一般过去时
Whatwereyoudoingwhentherainstormcame?
2.一般过去时+while+过去进行时
Maryturnedontheradio,whileJohnwascleaninghisroom.
3.过去进行时+while+过去进行时
JohnwastakingphotoswhileMarywasdancing.Lookatthetableandwritesentences
withbothwhileandwhen.Lookatthetableandwritesentences
withbothwhileandwhen.Fillintheblankswith
was,were,whenorwhile.1.They__________(read)atthistimeyesterday
2._____you_______(sweep)thefloorwhileyourmother_________(cook)?
3.We_____________(nottalk)witheachotherallmorningyesterday.
4.What____you_____(do)ateightlastnight?过去进行时构成：was/were+doing
相关的时间状语：atthis（that）timeyesterday、atteno’clocklastnight、from6to9lastSunday、thosedays，thewholeday等
肯定句：主语+was/were+doing
否定句：主语+was/were+not+doing
一般疑问句问与答:Was/Were+主语+doing?
Yes,主语was/were.No，主语wasn’t/weren’t.
特殊疑问句：特殊疑问词+was/were+主语+doing?
When与while的用法：
过去进行时(延续性动词)+when+一般过去时(短暂性动词)
一般过去时+while+过去进行时
过去进行时+while+过去进行时
Thanksforwatching