英语人教版八年级下册unit5语法练习.ppt

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1、过去进行时1含义：（概念）表示过去某个时刻正在进行的动作。（或过去一段时间正在进行的动作）2.句子结构:：be(was/were)+doing即：主语+was/were+doingsth.+时间状语3.时间状语词:at8o’clocklastnight/thistimeyesterday/at5:00yesterdayafternoon/atthattime,then等连用(或者用另一动作来表示过去的时间)过去进行时①表示过去某个时刻正在进行的动作。例句：Whatwereyoudoingatninelastnight?昨晚九点你正在干什么？Iwastakingashowe

2、ratninelastnight.昨晚九点我正在洗澡.Theywereplayingbasketballat5o’clockyesterdayafternoon.昨天下午五点他们在打篮球。②：表示在过去某一时间内正在进行的动作。ShewaswritingaletterwhenIcamein.我进来时，她正在写信。Thebarberwascuttingmyhairwhentheyarrived.他们到达时，理发师正在给我剪头发。观看动画教学Whatweretheydoingat10:30LastMonday?Theywererunning.Whatwereyoudoinga

3、t10:10yesterdaymorning?Iwasgoingshopping.Wherewassheat9:00yesterday?Ithinkshewasin/at…Shewassweepingtheflooratthattime.at9:00lastnightTomWhat______Tom________at7:30thismorning?She___________________at7:30thismorning.wasdoingwascookingbreakfastOnepointWhat________they________from8to9lastni

4、ght?They____________________________from8to9lastnight.weredoingweretalkingonthephoneOnepointWhatwasAlicedoingwhenIgotoutoftheshowerfromthebathroom?Shewasplayingthepiano.TalkaboutthepicturesWhatweretheydoingyesterdayafternoon?123IwasWewerecookingameal.playingvolleyball.havingaPEclass.watch

5、ingTV.workinginthechemistrylab.Sweepingthefloor.makingamodel.feedingmydog.Whatwereyoudoinglastnight?lastSaturday?atteno’clock?yesterdaymorning?atnoonyesterday?Yesterdayafternoon?Pairwork:Patterns:A:Whatwereyoudoingatnineo’clocklastSundaymorning?B:Iwassleeping.Howaboutyou?A:Iwasdoingmyhome

6、work.B:Youarekiddingwhen和while的用法区别1.when既指时间点，也可指一段时间;while只指一段时间.2.when说明从句的动作和主句的动作可以是同时，也可以是先后发生；while则强调主句的动作在从句动作的发生的过程中或主从句两个动作同时发生。WhentheUFOlanded,theboywaswalkingdownthestreet.==Whiletheboywaswalkingdownthestreet,theUFOlandedMymotherwascookingdinnerwhilemyfatherwaswatchingTV.(1)

7、“当…的时候”,如后面连接的动词为进行时态,则用while多于用when。而when通常与瞬间性动词或延续性不强的动词连用。(2)如果while前后的动词都是进行时态,while可译为“与此同时”Iwasreadingwhilemybrotherwasdrawing.A:Whatwereyoudoingwhenthetrafficaccidenthappened?B:Wewerehavingaparty.trafficaccidentWhatweretheydoingwhentheplanetookoff?Theyweresw