八年級下Unit5Section A課件3 (Grammma4c)

Unit5

Whatwereyoudoingwhentherainstormcame?SectionA3

now

atthistimeyesterday1Younow

at4:00lastSunday

2Tom

3BobandJacknow

atnoonyesterdayPractice

(Workinpairsandthenactthemout)A:Whatareyoudoingnow?B:Iamreadingabook.A:Whatwereyoudoingatthistimeyesterday?B:Iwasridingabike.A:WhatisTomdoing

now?B:Heisplayinggolf.A:Whatwashedoingat4:00lastSunday?B:HewasswimmingA:WhatareBobandJackdoingnow?B:They’re

running.A:Whatweretheydoingatnoonyesterday?B:Theywereplayingfootball.*Whatwereyoudoingateightlastnight?

Iwastakingashower.

Whatwasshedoingatthetimeoftherainstorm?Shewasdoingherhomework.Whatwashedoingwhentherainstormcame?Hewasreadinginthelibrarywhentherainstormcame.WhatwasBendoingwhenitbegantorainheavily?Whenitbegantorain,Benwashelpinghismommakingdinner.WhatwasJennydoingwhileLindawassleeping?WhileLindawassleeping,JennywashelpingMarywithherhomework.GrammarFocusGrammarFocus*過去進行時（一）.基本概念

過去進行時表示在過去某一時刻或一段時間內(nèi)正在進行的動作。這一特定的過去時間除有上下文暗示以外,一般用時間狀語來表示?！鵌wasplayingbasketballatteno’clockyesterday.※

IwashavinganEnglishclassfromseventonineo’clockyesterday.（二）.結(jié)構(gòu)Pastcontinuoustensewas/were＋現(xiàn)在分詞(v-ing)*動詞加-ing的變化形式

規(guī)則示例1、一般情況下，動詞后直接加-ing

working,buying,visiting,talking,saying

2、以不發(fā)音的e結(jié)尾的動詞，去掉e，然后加-ing

taking,having,leaving,driving,writing,making

3、輔音字母＋元音字母＋輔音字母結(jié)尾的重讀閉音節(jié)，雙寫末尾輔音字母加-ing

stopping,shopping,sitting,getting

4、特殊變化

lie--lyingdie-dyingtie-tyingpicnic-picnicking

注意：若結(jié)尾的輔音與元音字母組合發(fā)一個音，就直接加-ing。如：draw-drawing,play-playing*（三）.過去進行時的基本句型肯定式疑問式否定式\Wereyouworking?Washe/she/itworking?Wereyouworking?Wereyouworking?Weretheyworking?Iwasnotworking.He/She/Itwasnotworking.Wewerenotworking.Youwerenotworking.TheywerenotworkingTheywereworkingYouwereworkingWewereworkingHe/She/ItwasworkingIwasworking*（四）與過去進行時連用的時間狀語有:1.atthis（that）time+過去時間2.atteno’clock+過去時間3.from6to9+過去時間4.thosedays5.atthetimeof…6.Atthesametime+過去時間7.由when引導(dǎo)的一般過去時的句子yesterdaylastnighttherainstormlastyear*1.昨天的這個時候我正在做 作業(yè)。Iwasdoingmyhomeworkatthattime yesterday.2.昨晚我一直在看電視。IwatchedTVlastnight.過去進行時常表示過去某一時刻或過去某一階段內(nèi)正在進行的動作。過去某一時刻過去某一階段內(nèi)（五）:過去進行時的用法：IwaswatchingTVlastnight.強調(diào)過程強調(diào)過去的事實*nameactivitytimeTomswimatthistimeyesterdayMrWangtakeashowerat10:00lastSundayKatewatchTVfrom3:00to5:00yesterdayTheKingsplaybasketballatthattimelastSundayThetwinsdohomeworkalldayyesterdayA:WhatwasTomdoingatthistimeyesterday？B:Hewasswimming…….Pairwork:*1、一般過去時往往表示某一動作已經(jīng)完成，(在過去某個時間發(fā)生過的動作或存在的狀態(tài))而過去進行時卻表示動作在持續(xù)或未完成。(在過去某一時刻或某一段時間正在進行的動作。)Shewrotealettertoherfriendlastnight.她昨晚給朋友寫了封信。(信寫完了)Shewaswritingalettertoherfriendlastnight.她昨晚一直在給朋友寫信。(信不一定寫完)2、一般過去時表示只做一次動作，而過去進行時卻表示動作反復(fù)地進行。

Shewavedtome.她朝我揮了揮手。Shewaswavingtome.她一直朝我揮手。一般過去時與過去進行時的區(qū)別*when和while都可表示“當(dāng)……的時候”，引導(dǎo)時間狀語從句。你知道兩者在過去進行時中的用法有什么不同嗎？請仔細(xì)觀察下面的例句.補全空格中的內(nèi)容。過去進行時中的when和whilewhen引導(dǎo)的時間狀語從句,通常使用一般過去時while引導(dǎo)的時間狀語從句,通常使用（過去）進行時while前后的動詞都是進行時態(tài)時,while表示與此同時。*IwaswalkingtoschoolwhenIsawacatinatree.※過去進行時和

When

連用Awas/were+doingsthWhenB+didsth.

長時動作短時動作walkingtoschool*WhenPeterarrivedhome,hismotherwascleaningthehouse.*①IwaswalkingtoschoolwhenIsawacatinatree.②WhenPeterarrivedhome,hismotherwascleaningthehouse.主句的動作是持續(xù)性的，而從句動作是短暫性的，此時用______引導(dǎo)時間狀語從句，主句用__________時態(tài)，從句用一般過去時態(tài)。過去進行when一個動作發(fā)生時，另一個動作正在進行。*WhatwasLileidrawingwhentheteachercame

in?-Hewas

drawinganelephant.MaryJimLiLeiLilyLucySue*※過去進行時和

while

連用WhileAwas/were+doingsth,B+didsth.長時動作短時動作WhileIwassleepinginthebedroom,someoneknockedatthedoor.*Whilehewas…Hedid…Usewhile

todescribe(描述)picturesDavidfellwhilehewasridinghisbike.*③WhileIwassleepinginthebedroom,someoneknockedatthedoor.④Davidfellwhilehewasridinghisbike.主句的動作是短暫性的，從句的動作是持續(xù)性的，此時用_______引導(dǎo)從句，主句用__________時態(tài)，從句用過去進行時態(tài)。一般過去while*

※過去進行時和

while

連用A

was/were+doing

sth

While

B+was/were+doingsth長時動作長時動作兩個動作同時進行.WhileLiliwaswaitingforthebus,shewasreadinganewspaper.*Hewascleaninghiscarwhileshewascooking.*⑤WhileLiliwaswaitingforthebus,shewasreadinganewspaper.⑥HewascleaninghiscarwhileIwascooking.主句和從句的動作在過去的某時刻或某段時間同時發(fā)生，而且動作都是持續(xù)性的，此時用_________引導(dǎo)從句，而且主句和從句都用____________時態(tài)。過去進行while*WhileI…Hewasdoing…WhileIwaswalkingtoschool,hewaseating.Usewhile

todescribe(描述)pictures*

Amonkeywas…….while

twocatswere……

at3p.m.yesterday*when與while主從句的幾種時態(tài)搭配關(guān)系。主句時態(tài)連詞從句時態(tài)was/weredoingwhendiddidwhenwas/weredoingdidwhilewas/weredoingwas/weredoingwhilewas/weredoing

總結(jié)

1)when可指時間點,又可指時間段,從句中可用延續(xù)性動詞,也可用非延續(xù)性動詞。

2)while總是指一個時間段,從句中必須用延續(xù)性動詞。*Lookatthetableandwritesentenceswithboth

whileandwhen.JohnMarytakephotosbuyadrinkplaythepianoleavethehousecleanhisroomturnontheradioshoptakethecartothecarwash4aWhileJohnwastakingphotos,Maryboughtadrink.JohnwastakingphotoswhenMaryboughtadrink.turnon打開（反）turnoff關(guān)掉

時間狀語從句主句

主句

時間狀語從句買份飲料離開家打開收音機把車送到洗車處*2.WhileJohn

wasplaying

thepiano,Mary

left

thehouse.

John

wasplaying

thepianowhenMary

leftthehouse.3.WhileJohnwascleaninghisroom,Maryturnedontheradio.JohnwascleaninghisroomwhenMary

turnedontheradio.4.WhileJohnwasshopping,Marytookthecartothecarwash.Johnwasshopping

whenMarytookthecartothecarwash.*Fillintheblankswithwas,were,whenorwhile.At7:00a.m.,Iwokeup.______I____makingmybreakfast,mybrother______listeningtotheradio.________Iwaseating,theradionewstalkedaboutacaraccidentnearourhome.MybrotherandIwentoutrightawaytohavealook._____wegottotheplaceoftheaccident,thecar_____inbadshapefromhittingatree.Butluckilythedriver____fine.Theroads______icybecauseoftheheavysnowfromthenightbefore.WhilewaswasWhileWhenwaswaswere當(dāng)我們到達(dá)事故現(xiàn)場的時候,汽車由于撞在了樹上，已經(jīng)變了形。

4b收音機新聞

聽收音機

車禍

在我家附近

立刻出去

看一看

汽車因為撞到樹上而嚴(yán)重變形了。

由于前晚的大雪，路面是結(jié)滿冰的。

*

WhatwereyoudoingatthesetimeslastSunday?Fillinthechart.Thenaskyourpartner.YouYourpartner9:00a.m.11:30a.m.4:00p.m.9:00p.m.4cA:Whatwereyoudoingatnineo’clocklastSundaymorning?B:Iwassleeping.Howaboutyou?A:Iwasdoingmyhomework.B:You’rekidding!readEnglishhavebreakfastdomyhomeworkwatchTVplaybasketballpracticedancingtakeashowerlistentomusic*I.根據(jù)漢語意思完成下列英語句子，每空一詞。1.昨天下午五點鐘你哥哥在做什么？What________yourbrother________atfiveyesterdayafternoon?2.昨天我回到家時，我媽媽在洗衣服。Mymother_____________clothes________I________homeyesterday.

3.你做作業(yè)時，你妹妹在干什么？Wh