2022年八年级英语上册Unit8NaturaldisastersGrammar课件新版牛津版

Unit8Naturaldisasters

GrammarLead-in123Iwassleepingwhentheearthquakestarted.Peoplewererunninginalldirectionswhilepiecesofglassandbrickswerefallingdown.AsIwastryingtofindmywayout,Isuddenlyheardsomenoiseaboveme.Lead-inWhatwerepeopledoingwhentheearthquakehappened?Lead-in过去进行时Lead-inThepastcontinuoustenseDiscovering

Lookatthesentences.HewaswatchingTVatnineyesterday.Weweresleepingwhenyoucame.Shewascookingdinneratthattime.Theywereplayingfootballthatafternoon.Youwerereadingwhenthetelephonerang.Iwaswashingmycaratthistimeyesterday.

What’stherule?Discovering

Circletherightverb.Atthistimeyesterday,sheisreading/wasreadinginthestudy.Whatwereyoudoing/didyoudoatnineo’clocklastnight?Iamchatting/waschattingonlinewithmyfriendswhenhecame.Itwasraining/wererainingyesterday.Theyweredoing/didhomeworkfrom4:00to5:00thatafternoon.

Usetherule!DiscoveringWorkouttherule!EssentialStructurewas/wasn’t

were/weren’t+doing

sb+

DiscoveringWorkouttherule!◆Weuse“was+doing”withthepronoun_____,_____,_____and_____.◆Weuse“were+doing”withthepronoun_____,_____and_____.hesheitIyoutheyweExplainingUsageTotalkaboutthingsthatwerehappeningataparticulartimeinthepast.e.g.

I

was

reading

abookat5p.m.yesterday.Shewasn’tchattingonlinejustnow.

WereyourparentswatchingTVat9lastnight?Whatweretheydiscussing

alldaylastSunday?

Communicationshow

123atthistimeyesterday

thewholenightyesterday

at4p.m.yesterday

MakesentencesCommunicationshow

Makesentences1.Theboyswereplaying

footballat4p.m.yesterday.2.Thewomanwasshoppingatthistimeyesterday.3.Thegirlwasreadingthewholenightyesterday.

CompleteaconversationCommunicationshow

◆CompletePartAonPage97PracticeEntranceexaminationlink1.—WasKateatthepartylastnight?—Yes,she_____areallynicedress.

（2013·盐城市）

A.iswearing B.waswearingC.wouldwear D.hasworn√2.Millie____apicturewhenMrGreencamein.

（2013·徐州市）

A.draw B.willdrawC.drew D.wasdrawing√PracticeEntranceexaminationlink3.Sallytookaphotoofherfriendswhilethey_____computergames.

（2013·杭州市）

A.play B.areplayingC.haveplayed D.wereplaying4.—HasDavidfinishedhisprojectyet?—Iguessnot.He_____onitatlunchtime.Doyouwanttoconfirmit?（2014·无锡市）

A.isworking B.wasworkingC.hasworked D.hadworked√√PracticeEntranceexaminationlink5.SusanandLily_____tomatoesandothervegetablesonthefarmthistimeyesterday.

（2014·上海市）

A.pick B.arepickingC.willpick D.werepicking6.—Alan!Whyareyousolate?—Sorry!WhenI_____home,Imetoneofmyfriends.

（2014·威海市）

A.went B.amwalkingC.hasgone D.waswalking√√ComparisonSummary

◆Pastcontinuoustense:

sb+was/were+doing◆Presentcontinuoustense:

sb+am/is/are+doing◆Simplepasttense:

sb+was/were/did

ExplainingDifficulty:when,while,asTheyallmean“duringthetimethat”andcanbeusedtointroducealongactionthatstartedbeforeashortaction.e.g.

When/While/AsMilliewaswatchingTV,Andycameintothesitting-room._______________longaction____________________shortactionTipWeusepastcontinuoustenseforlongactionsandpasttenseforshortactions.ExplainingAttentionIfthelongeractionisinthemainclause,weoftenuse“when”tojointhem.e.g.

MilliewaswatchingTVwhenAndycameintothesitting-room.__________________longeractionExplainingAttention2.Whentherearetwolongactions,weoftenuse“while”.e.g.

WhileMilliewaswatchingTV,Eddiewassleeping.__________________longaction_______________longactionExplainingAttention3.“As”canalsobeusedtojointwoshortactionsthathappenatthesametime.e.g.

AsMilliesatdownonthesofa,Andycameintothesitting-room._____________________shortaction_________________________shortactionFillintheblanksCommunicationshow

Itbegantorain____________Lindawashavingsupper.2.Whatwereyoudoing_____MrJacksoncameintotheclassroom?3.______________youaredriving,don’tuseyourmobilephone.4._____yearsgoby,Chinaisgettingricherandstronger.when/while/aswhenWhen/While/AsAswhen,while,asFillintheblanksCommunicationshow

when,while,as5.Wewerehavingameeting_____thelightwentoff.6.Iwaslookingafterthechild_____Jennywascookinglunch.7.Thelittlegirlssang_____theyplayed.8.________Iarrivedathisoffice,hewaschattingonthephone.whenwhileasWhen/AsCompletesentencesCommunicationshow

◆CompletePartBonPage98PracticeCompletethesurveywithyourowninformation.Whatwereyoudoinginthe_____classthismorning?Chinese