1、过去进行时的用法过去进行时的用法 1创新微课过去进行时的用法过去进行时的用法1.意义：意义：表示过去某一时间点或某段时间内正在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。进行的状态或动作。2.构成构成：was/were+doing否定式否定式was/were not+doing疑问式：疑问式：Was/Were doing?创新微课过去进行时的用法过去进行时的用法3.标志词：标志词：at this/that time yesterday at 9:00 last nightfrom seven to nine last night was/were doing when.did.whil
2、e.was/were doing.,.did.介词短语表示过去的时间点when和while引导的从句 cook a meal at this time yesterdayHe cook at this time yesterday.Lets talkwasingLets talk play footballat four oclock last FridayHe play football at four oclock last Friday.wasing Lets talk ride a horseat nine last SundayHe a horse at nine last Sund
3、ay.wasing rideridat 5 oclock yesterday afternoondanceLets talk He was dancing at 5 oclock yesterday afternoon.When&WhilelThe rabbit was jumping while the pig was dancing.lThe 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过去
4、进行时的用法句子结构注意事项when主语+was/were doingsth.+when+主语+did sth.when=at/during that time,所以从句中的动词通常用短暂性动词,也可以用延续性动词。whileWhile+主语+was/were doing sth.,主语+did sth.while=during that time,表示某一时间段内发生的动作，因此，从句谓语动词常用延续性动词。asAs+主语+was/were doing sth.,主语+did sth.as引导时间从句时，相当于while，即后面要接延续动词，一般译成“正当,”“随着”。1创新微课过去进行时的
5、用法过去进行时的用法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。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
6、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 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过去进行时的用法Correct their mistakes1创新微课过去进行时的用法过去进行时的用法注意主句、从句的时态时态搭配关系。注意主句、从句的谓语动词延续性延续性和短暂性短暂性。注意：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过去进
7、行时的用法1.Mary _ a dress when she cut her finger.A.makes B.is making 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
