while时间状语从句.ppt

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1、Part1Review：PastContinuousTense过去进行时SentencePattern：S+was/weredoing（+timeexpressions）.TimeExpressions:at6:00yesterdaymorning;atthattime;from2:00to4:00yesterdayafternoon…Whatwashedoingat9:00yesterdaymorning?Let'spracticeyesterdaymorningWhathappened?Whatwasthebo

2、ydoingfrom6:00to9:00lastnight?LazyGoatwassleepingonthemeadow.Bigbigwolfandhiswifecame.WhileLazygoatwassleepingonthemeadow,bigbigwolfandhiswifecame.While：duringaperiodoftime（conj.）当……的时候（连词）Part2:While-clauseinadverbialoftimewhile引导的时间状语从句HowtouseWhilesthwashap

3、pening，sthhappened.orWhilesb/sthwasprep./adv…，sthhappened.当某事情正在发生的时候，另一件事情发生了。当某人/事处于某种状态下，另一件事情发生了。（while从句为背景动作,主句发生在从句过程之中）2.Whilesthbehappening,anotheronebehappening.(beshouldchangewiththetense)当一件事情发生的时候，另一件事情也同时正在进行。（while从句可以和主句互换位置，两个动作正在同时发生）①Whilehe

4、wasdoinghishomework，thebellrang.subordinateclause：从句（背景）principleclause：主句Focusonsituation1：（while从句为背景动作,主句发生在从句过程之中）②Whileshewasaway，herfriendhelpedme.subordinateclause：从句（背景）principleclause：主句Tips:While引导的句子为从句，表示事情发生的背景动作。While从句中，出现实意动词时，表示一段时间，所以只能选择延续性动

5、词，用过去进行时短暂性动词：瞬间发生就结束eg：come，arrive，dieetc.延续性动词：动作发生后可以持续进行eg：eat，sing，liveetc.Let'sfindit，thenputtheminonesentence！WhichoneistheWhile-clause?Whichoneistheprincipleclause?Eg:Hewaswalking.Amanstolehiswallet.====Whilehewaswalking,amanstolehiswallet.Shefelldown.

6、Shewasclimbingaladder.====Whileshewasclimbingaladder,shefelldown.Shewasaway.Herfriendlookedafterherchild.====Whileshewasaway,herfriendlookedafterherchild.Part3:Let’slearnupsetabaddayHeburnedhimselfwhilehewascooking.A：Youlookupset.B：Ihadabadday.A：Why？Whathappen

7、ed？B:IburnedmyselfwhileIwascooking.A:I’msorrytohearthat.A：Youlook.B：Ihadaday.A：Why？What？B:AdogmewhileIwas.A:I’mtohearthat.upsetbadhappenedbitdeliveringthemailsorryA：Youlook.B：Ihadaday.A：Why？What？B:ImyselfwhileIwasmyfence.A:I’mtohearthat.upsetbadhappenedcutfixi

8、ngsorryPart4：Let’ssay：oraltime！Talkaboutanunlucky/aluckything！Hereisamodel:Iwasveryupsetyesterday.BecauseIhadaverybadday.IlostmypursewhileIwasshopping.Icouldn’tbuyanything.Iwasreal