Unit8SafeandsoundGrammar课件译林版英语八年级上册()

Unit6Unit8GrammarSafeandsoundWhatisTomdoing?WhatisLucydoing?Presentcontinuoustense：am/is/are+doingWarmingupTom/Heisplayingfootball.Lucy/Sheisreadingabook.WhatwasTomdoingatthatmoment?WhatwasLucydoingat2p.m.yesterday?Tom/Hewasplayingfootball.

Lucy/Shewasreadingabook.LeadinWhydon’tweuse“isdoing”?Becausewetalkaboutthingsthathappeninthepast.wasplayingwasreadingSuzy:Therewasanaccidentnearourschoolat4:10yesterdayafternoon.Ithappenedaswe_____________homefromschool.Amy:Iknow.IsawitwhileI__________mybikehome.It___________whenthepolicearrived.Suzy:Ididn'tseeit.Ihopenoonewasbadlyhurt.Pastcontinuoustense

Listentotheconversationbelowandfillintheblanks.weregoingwasrainingwasridingWeusethepastcontinuoustensetotalkaboutthingsthatwerehappeningataparticulartimeinthepast.Weformthepastcontinuoustenselikethis:_________+doingwas/werediscovertheformIt’s6o’clocknow.Amyismakingaphonecallathome.At4:10,shewasn’tathome.She________________herbikehome.She________________aphonecallathome.wasridingwasn’tmakingNegative:Subject+_______________+doingwas/werenotdiscovertheformGeneralquestion:______________+S+doing?Was/WereWereyoustayingathomeat4:10thisafternoon?No,Iweren’t.Iwasridingabikehome.Isawtheaccidentnearourschool.Metoo.ThepolicewasworkingtherewhileIwasdrivingtomyoffice.Wasitrainingatthattime?Yes,itwas.Whenthepolicearrived,itwasrainingheavily.Yes,S+was/were.No,S+was/werenot.Iwashavingbreakfastat7:00amyesterday.7:00amyesterday1.Thepastcontinuoustenseindicatesanactionthatwasongoingatacertainmomentinthepast.Timepointcanberepresentedusingprepositionalphrase,adverborclauses,butalsohintedatbythecontext.(过去进行时表示过去某一时刻正在进行的动作。时间点可以用介词短语、副词或从句来表示，也可由上下语境暗示。)discovertheusage2.Thepastcontinuoustenseindicatesanactionthatwasongoingforaperiodoftimeinthepast.(过去进行时表示过去某阶段一直在进行的动作。)from1982to1998From1982to1998,shewasteachingatYale.

discovertheusage3.Thepastcontinuoustenseoftenappearsinstorytellingsituations.(过去进行时常出现在讲故事的情境中。)①Alicewassittingwithhersisterbytheriverand

hersisterwasreadingabook.②

Whileshewasfalling,shewas

thinkingabouthercat,Dinah.discovertheusagediscovertherules1)atacertainmomentinthepastat+过去时间

at4:10yesterdayafternoonatthis/thattime+过去时间

atthistimelastnight

then(那时）thedaybeforeyesterday2)aperiodoftimeinthepastfrom...to...+过去时间lastmonth/year...

thewholemorning/alldaysummarizethetimemarkers通常不用于进行时

的动词：1.心理、情感：lovehatelikeknow...2.somelinkingverbs部分联系动词：seemappear...3.sensoryverbs感官动词：seehearsmellsoundtaste...4.transientverbs短暂性动词（短动作）:decidestopbeginstartcomegoleavearrivebuydiecloselendborrowfindfinish...

通常表示瞬间发生的动作durativeverbs延续性动词（长动作）：studyworkstandliewalkkeephavewaitwatchsingreadsleepstay...Tip1.He____________(open)thewindowat8o’clockyesterdaymorning.2.Mymother____________(cook)dinnerfrom6to7lastnight.3.Thelittleboy____________(fall)offhisbikeat4p.m.yesterday.4.They____________(watch)amoviefrom8to10lastSaturdayevening.5.Thephone____________(ring)at9:30yesterday,butIdidn’thearit.6.She____________(read)anovelthewholeafternoonyesterday.7.We____________(play)basketballfrom3to5yesterdayafternoon.用所给单词的适当形式填空。openedwascookingfellwaswatchingrangwasreadingwasplayingPracticeThedifferencebetweenthepastcontinuoustenseandthesimplepasttense:1.过去进行时:强调过去某一时刻或时间段内正在进行或持续的动作。Hewasplayingbasketballatthreeyesterdayafternoon.昨天下午三点他正在打篮球。2.一般过去时:表示动作发生在过去，且往往已经完成。Heplayedbasketballyesterdayafternoon.昨天下午他打篮球了。1.TheSmiths_________supperatsevenlastnight.A.washavingB.werehavingC.ishavingD.arehaving2.—Icalledyouat9yesterdaymorning,butnooneanswered.—Sorry,I______flowersinthegardenthen.A.wateredB.waswateringC.havewateredD.willwater3.______yoursister______Englishsongsat8o’clockthismorning?A.Was;singingB.Did;singC.Is;singingD.Does;sing4.Thestudents____________basketballontheplaygroundatnoonyesterday.A.weren’t;playingB.didn’t;playC.aren’t;playingD.don’t;playBBAAPracticeUsingwhen,whileandas

Readtheconversationagainandpayattentiontothecircledwords.Suzy:Therewasanaccidentnearourschoolat4:10yesterdayafternoon.Ithappenedasweweregoinghomefromschool.Amy:Iknow.IsawitwhileIwasridingmybikehome.Itwasrainingwhenthepolicearrived.Suzy:Ididn'tseeit.Ihopenoonewasbadlyhurt.conjunctionsoftimeWhataretheirsimilaritiesanddifferences?What’sthefunctionofthem?Iwasworking

whentheearthquakestarted.Peoplewererunninginalldirectionswhilepiecesofglassandbrickswererainingdown.AsIwastryingtofindmywayout,Isuddenlyheardsomenoiseaboveme.Whatdothesewordmean?

Whataretheirsimilaritiesanddifferences?when,while,assimilaritiesduringthetimethat

当...时候ThephonerangwhileIwassleeping.​在我睡觉的时候​​，电话响了。Durativeverb延续性动词Iftheverbinthesubordinateclauseisadurativeverb,wecanonlyusewhiletojointheclauses.

while引导的时间状语从句中的谓语动词只能是延续性的Iftheverbinthesubordinateclauseisantransientverb,weoftenusewhenorastojointheclauses.when和as引导的时间状语从句中的谓语动词既可以是延续性的，也可以是瞬间性的Difference1①When/Ashewokeup,itwaseighto'clock.②

Whilehewokeup,itwaseighto'clock.③

When/While/AsIwaswaitingforabus,Imether.判断正误。()()()√×√Iftheverbinthesubordinateclauseisadurativeverb,wecanonlyusewhiletojointheclauses.

while引导的时间状语从句中的谓语动词只能是延续性的Iftheverbinthesubordinateclauseisantransientverb,weoftenusewhenorastojointheclauses.when和as引导的时间状语从句中的谓语动词既可以是延续性的，也可以是瞬间性的Wewerewatchinginfearwhilethefiremenwereputtingoutthefire.longactionlongactionWhenboththemainclauseandtheclausearetwolongactions,weusewhiletoconnectthem.Structure:thepastcontinuoustense+while+thepastcontinuoustense同学们在教师里打扫卫生，老师在黑板上写字。Whilethestudentswerecleaningtheclassroom,theteacherwaswritingwordsontheblackboard.Difference2while可位于句首，也可位于句中。practiceWhen/While/AsMilliewaswatchingTV,lightninghitanearbybuilding.longeractionshorteractionIftheshortactionisinthemainclause,wecanusewhen,whileorastojointheclauses.Structure:thesimplepasttense+when/while/as+thepastcontinuoustensepracticeLinda吃晚饭的时候开始下雨了。Itbegantorainwhen/while/as

Lindawashavingdinner.Difference3while/when/as可位于句首，也可位于句中。MilliewaswatchingTVwhenlightninghitanearbybuilding.longeractionshorteractionIfthelongeractionwasongoingandanothershorteractionhappenedsuddenly,weoftenusewhentojointheclauses.Structure:thepastcontinuoustense+when+thesimplepasttensepractice我在公园里散步时，一只小狗突然向我跑来。Iwastakingawalkintheparkwhenalittledograntowardsmesuddenly.Difference4theusageofwhen,whileandas两个动作同时进行：主句从句长动作长动作长动作短动作短动作长动作Summarywhile

whenwhile/when/asChoosewhen,while,astofillintheblanks.用when、while或as填空。1.Itbegantorain______________Lindawashavingsupper.2.Whatwereyoudoing________MrJacksoncameintotheclassroom?3.Wewerehavingameeting_________thelightwentoff.4.Iwaslookingafterthechild______

Jennywascookinglunch.5._________Iarrivedathisoffice,hewaschattingonthephone.when/while/aswhenwhenwhileWhenPracticeAnothersnowstormhitHarbin.Simonisaskinghisgrandpaaboutit.Completetheirconversationwiththecorrectformsoftheverbsinbrackets.Simon:Hello,Grandpa.Howwasyourday?Grandpa:Notbad.Thankyou,Simon.Wejusthadthethirdsnowstormofthiswinter.It(1)____________(get)strongerwhileI(2)_____________(read)thenewspaperatabout7thismorning.Whataboutyou,Simon?Simon:We’reallverywell,Grandpa.It(3)______________(snow)hereinBeijingwhenwewenttothePalaceMuseumduringtheday.Lotsofpeople(4)

________________(enjoy)thebeautyofthePalaceMuseuminthesnow.Grandpa:Soundsnice.MaybeI(5)_______________(watch)thewonderfulviewonTVwhileyou

(6)_____________(visit)there.Simon:Yeah,itwasreallywonderful.Comeandtakealookbyyourselfnexttime.

wasgetting

wasreadingwassnowingwereenjoying

waswatching

werevisitingPracticeSimon’scousinVickyiswritingaboutthesnowstorm.Completeherarticlewiththecorrectformsoftheverbsinbrackets.Joyafterthesnowstorm

Harbinwokeuptoawinterwonderlandlastweek.Therewasabigsnowstorm.WhenIgotuponSaturdaymorning,it(1)___________(snow)heavily.Thewind(2)__________(blow)hardallmorning,butthatjustmeantmoretimeforfuninsidewithmyfamily.Itstoppedsnowingintheafternoon.GuesswhatIdid?Ibuiltasnowman!I(3)____(draw)abigsmileonhisface,putmyhatonhisheadandtookaphoto.Whenitwasalmosttimefordinner,Iwenthome.Somepeopleintheneighbourhood(4)___________(clear)thesnowfromthestreets.WhenIgothome,myparents(5)___________(get)dinnerready.Whilewe(6)____________(enjoy)ourmeal,itbegantosnowagain.Itwassonicetohavehotjiaozionacoldday!

wassnowingwasblowing

drewwereclearingweregettingwereenjoyingPracticePracticeUsewhen,while,astocomplete._______Simon_________(arrive),Amy

___________(get)somesnowfromtheground.2._______________SuzyandKitty____________(build)asnowman,Millie___________(take)photos.3.Daniel_______(fall)over_____________he____________(make)abigsnowball.4.Peter__________(hide)behindatree______asnowball____(hit)him.5.______________Millieandherclassmates____________(play)inthesnow,Andy____(run)towardsthem.WhenarrivedwasgettingWhilewerebuildingwastakingf