《过去进行时微课ppt课件.ppt》由会员分享，可在线阅读，更多相关《过去进行时微课ppt课件.ppt（15页珍藏版）》请在三一办公上搜索。
1、,过去进行时的用法,1,创新微课,过去进行时的用法,1.意义：表示过去某一时间点或某段时间内正在进行的状态或动作。,2.构成：,was/were +doing,否定式,was/were not +doing,疑问式：,Was/Were doing?,创新微课,过去进行时的用法,3.标志词：at this/that time yesterday at 9:00 last nightfrom seven to nine last night was/were doing when.did. while.was/were doing .,.did.,介词短语表示过去的时间点,when和while引导
2、的从句,cook a meal at this time yesterday,He cook at this time yesterday.,Lets talk,was,ing,Lets talk,play footballat four oclock last Friday,He play football at four oclock last Friday.,was,ing,Lets talk,He a horse at nine last Sunday.,was,ing,ride,rid,at 5 oclock yesterday afternoon,dance,Lets talk,H
3、e was dancing at 5 oclock yesterday afternoon.,When&While,The rabbit was jumping while the pig was dancing .,The boy was playing basketball when the teacher came in.,=While the boy was playing basketball ,the teacher came in.,1,创新微课,过去进行时的用法,1,创新微课,过去进行时的用法,1.如果表示一个动作或事件发生时,另一个动作或事件正在进行,可用when和while
4、 。过去进行时一般提供事情发生的背景”。Mary was cutting up some bananas when I came in.2.当从句中的谓语动词表示瞬间动作时,不可用while。 I was drawing the picture when my friend came.（这儿when不可用while）He fnally fell aleep when/while the wind was dying down.（这儿when相当于while）3.如果主要动作和背景动作都是延续的或同时发生的，那么主从句的动词都可以用过去进行时。While he was cleaning his
5、car, I was cooking .(两个动作同时进行）While he was waiting for the bus, he was reading a newspaper.（两个动作都是延续的）。,1,创新微课,过去进行时的用法,Correct their mistakes,1,创新微课,过去进行时的用法,注意主句、从句的时态搭配关系。,注意主句、从句的谓语动词延续性和短暂性。,注意：When, while, as引导时间状语从句,1,创新微课,过去进行时的用法,1. Mary _ a dress when she cut her finger.A. makes B. is maki
6、ng C. was making D. made 2.As/while she _ the newspaper, Granny _ asleep. A. read； was falling B. was reading；fellC. was reading；was falling D. read; fell3. My brother to music while I _.A. was listening ,was dancing B. listened, danced C. was listening , danced D. listened, was dancing,考点链接,END,同学，下节再见,
