Unit5SectionA(GrammarFocus-4c)課件人教版英語八年級下冊2

Unit5SectionA(語法課)過去進行時

Whatwereyoudoingwhentherainstormcame?學(xué)習(xí)目標(biāo)能正確的使用連詞When和while(ConjunctionsWhenandWhile)，when和while的用法及區(qū)別。語言能力通過小組合作總結(jié)語法規(guī)律，學(xué)會正確使用過去進行時。并且用過去進行時描述自己過去的事件。思維品質(zhì)1.鼓勵學(xué)生仔細觀察周圍事物并善于發(fā)現(xiàn)生活中的美。

2.發(fā)展學(xué)生的合作精神和樂觀的態(tài)度。文化意識能夠用過去進行時談?wù)撨^去發(fā)生的事情，能夠正確運用when和while引導(dǎo)的時間狀語從句。通過掌握這些描述的詞，進行簡單的對話及進行句子的仿寫。

學(xué)習(xí)能力IthrewawishinthewellDon'taskme,I'llnevertellIlookedtoyouasitfellandnowyou'reinmywayI’dtrademysoulforawishpenniesanddimesforakissIwasn'tlookingforthisbutnowyou'reinmywayYourstarewasholdingRippedjeansskinwasshowingHotnight,windwasblowingWhereyouthinkyou'regoing,babyHey,Ijustmetyouandthisiscrazybuthere'smynumbersocallmemaybeCallMeMaybe----CarlyRaeJepsen過去進行時:was/were+動詞的現(xiàn)在分詞Iwasn'tlookingforthisbutnowyou'reinmywayYourstarewasholdingRippedjeansskinwasshowingHotnight,windwasblowingThemanwasbuyinganicecream.Thegirlwascatchingtheicecream.Thegirlwassearchingherbag.Theboywaslookingathiswatch.Thewomanwasreading.Themanwaspayingfortheticket.Themanwaswaitingforhisguests.Themanwasstandingintheline.過去某一時刻正在進行的動作

過去一段時間正在進行的動作Shewasdoinghomeworkfrom8:00to10:00yesterday.HewasworkinginabankwhenIworkedthere.Yourphonewasringinguntilyouwalkedin.Hewaslookingforjobsthosedays.was/were+動詞的現(xiàn)在分詞表示過去表示進行過去進行時PresentationLookandsay.1.—Whatwereyoudoingateightlastnight?—I____________ashower.wastaking2.—Whatwasshedoingatthetimeoftherainstorm?—She____________herhomework.3.—Whatwashedoingwhentherainstormcame?—He______________inthelibrary.wasreading4.—WhatwasBendoingwhenitbegantorainheavily?—______itbegantorain,Benwashelpinghismommakedinner.When5.—WhatwasJennydoingwhileLindawassleeping?—______Lindawassleeping,Jennywashelping

Marywithherhomework.WhilewasdoingPresentationAskandanswer.Whatweretheydoingat6:00p.m.yesterday?ShewaswatchingTVatthatmoment.Hewasdoinghishomeworkatthatmoment.Theywerehavingapicnicatthatmoment.Theywereplayingbasketballatthatmoment.GrammarFocusWhatwereyoudoingateightlastnight?Iwastakingashower.Whatwasshedoingatthetimeoftherainstorm?Shewasdoingherhomework.Whatwashedoingwhentherainstormcame?Hewasreadinginthelibrarywhentherainstormcame.WhatwasBendoingwhenitbegantorainheavily?Whenitbegantorain,Benwashelpinghismommakedinner.WhatwasJennydoingwhileLindawassleeping?WhileLindawassleeping,JennywashelpingMarywithherhomework.Underlinethepastcontinuoustense.定義：表示過去某個時刻或某一時間段內(nèi)正在進行或發(fā)生的動作。常用的時間狀語：atthis/thattimeyesterday,atsixyesterdaymorning,allnight等。構(gòu)成：was/were+動詞-ing形式當(dāng)主語是第一人稱單數(shù)形式或第三人稱單數(shù)形式時，be動詞用was，其余人稱用were。過去進行時過去進行時含義:表示過去某個時刻

正在進行的動作。結(jié)構(gòu)：

was/were+doing例句：IwashavinganEnglishclassatthistimeyesterday.現(xiàn)在進行時含義:表示現(xiàn)在正在進行

的動作。結(jié)構(gòu)：

is/am/are+doing例句：IamhavinganEnglishclass.

Grammar過去進行時1.含義

表示在_______________或____________

正在進行的動作。2.結(jié)構(gòu)________________過去某一時刻某一段時間Iwastakingashowerateightlastnight.Theyweredoing

theirhomeworkfrom17:00to18:00yesterdayafternoon.was/were+Ving結(jié)構(gòu)：was/were+doing(動詞-ing形式)用法：表示過去某時刻或某一段時間正在進行的動作。1.表示過去某個時間點正在發(fā)生的動作。Hewascookingatthattime.2.表示過去某段時間正在發(fā)生的動作。Iwastalkingonthephonefrom7to8lastnight.

考向1：過去進行時的用法謂語動詞：was/were+動詞的現(xiàn)在分詞表示過去表示進行口訣規(guī)則例子直1.一般情況下，直接在動詞之后+ing.play—playingstudy—studying去2.以不發(fā)音的e結(jié)尾的動詞，去e再加ing.take—takingdance—dancing雙3.重讀閉音節(jié)的動詞，雙寫尾字母

再加ing.cut—cuttingswim—swimming變4.以ie結(jié)尾的動詞，把ie變?yōu)閥再加ing.lie—lyingdie—dyingtie—tying過去進行時基本句式Grammar

Wereyoucookingdinner?Iwas

not

cookingdinner.Iwas

cookingdinner.肯定句否定句一般疑問句Yes,Iwas./NoIwasn’t.Theywere

doingtheirhomework.Theywere

not

doingtheirhomework.

Weretheydoingtheirhomework?Yes,theywere./No,theyweren’t.2.由while和when

的時間狀語從句1.常用時間狀語：

at7:00lastnight,atthattime,atthistimeyesterday,yesterdaymorning,from10to12,allmorning,thewholemorning…Tomwasrunningtothebusstopat7:50thismorning.Tomwaswaitingforthebusfrom7to9thismorning.Tomwaswritingastoryatthistimeyesterday.修飾時間狀語IwaswatchingTVthewholenight.Wewerehavingclassesalldayyesterday.2.過去一段時間正在進行的動作

常與thewholeday,alldayyesterday等時間狀語連用。有時沒有明顯的時間狀語，可根據(jù)上下文語境判斷。MissLiwasshoppingatthistimeyesterday.IwaslookingformylostcatatninelastMondaymorning.1.過去某一時刻正在進行的動作

與表示過去某一時間點的時間狀語連用，如at3o'clockyesterdayafternoon,atthis/thattimeyesterday等。Summary

過去進行時和一般過去時的區(qū)別1)過去進行時表示過去正在進行的動作,2）

一般過去時表示過去某個時間發(fā)生過的動作。

如：Davidwrotealettertohisfriendlastnight.大衛(wèi)昨晚給他的朋友寫了封信。(信寫完了。)Davidwaswritingalettertohisfriendlastnight.大衛(wèi)昨晚一直在給他的朋友寫信。(信不一定寫完。)過去進行時的基本用法

eg：IwaswatchingTVthewholenight.Wewerehavingclassesalldayyesterday.表示過去某一段時間內(nèi)一直進行的動作，常與thewholeday,alldayyesterday等時間狀語連用。有時沒有明顯的時間狀語，可根據(jù)上下文語境判斷。eg：MissLiwasshoppingatthistimeyesterday.IwaslookingformylostcatatninelastMondaymorning.表示過去某一時刻正在進行或發(fā)生的動作，與表示過去某一時間點的時間狀語連用，如at3o'clockyesterdayafternoon,atthistimeyesterday等?，F(xiàn)在分詞變化形式（+ing）（直去雙少）變化規(guī)則例詞一般情況下直接加-ingreadreadingjumpjumpingsleepsleeping以不發(fā)音字母e結(jié)尾的動詞，去掉e再加-ingtaketakingwritewritingwakewaking以重讀閉音節(jié)結(jié)尾且末尾只有一個輔音字母的動詞，雙寫該輔音字母后再加-ingrunrunningswimswimmingputputting少數(shù)幾個以ie結(jié)尾的動詞要變ie為y,再加-ingdie死亡dyinglie躺下lyingtie捆綁tyingGrammarFocusWhatwereyoudoingateightlastnight?Iwastakingashower.Whatwasshedoingatthetimeoftherainstorm?Shewasdoingherhomework.Whatwashedoingwhentherainstormcame?Hewasreadinginthelibrarywhentherainstormcame.WhatwasBendoingwhenitbegantorainheavily?Whenitbegantorain,Benwashelpingmakedinner.WhatwasJennydoingwhileLindawassleeping?WhileLindawassleeping,JennywashelpingMarywithherhomework.Underlinetheadverbialclauseoftime.找出when&while引導(dǎo)的時間狀語從句并劃線

while+句子

表達一段時間when+句子

表達時間點

IlostmykeywhenIwaswalkinginthepark.=

IlostmykeywhileIwaswalkinginthepark.

/時間段瞬間動詞持續(xù)動詞持續(xù)動詞Summary不同點1（從句的謂語動詞）不同點2（主句從句里的動作）不同點3（從句的時態(tài)）when延續(xù)性動詞瞬間性動詞同時發(fā)生一前一后常接一般過去時的從句while表狀態(tài)的延續(xù)性動詞同時發(fā)生常接過去進行時的從句when&while的區(qū)別注意：表示主從句正在進行的動作或狀態(tài)的對比時多用while：

Whileshewasmakingaphonecall,Iwaswritingaletter.4a.Lookatthetableandwritesentenceswithbothwhileandwhen.JohnMarytakephotosbuyadrinkplaythepianoleavethehousecleanhisroomturnontheradioshoptakethecartothecarwash1.WhileJohnwastakingphotos,Maryboughtadrink.JohnwastakingphotoswhenMaryboughtadrink.presentation2.WhileJohnwasplayingthepiano,Maryleftthehouse.JohnwasplayingthepianowhenMaryleftthehouse.3.WhileJohnwascleaninghisroom,Maryturnedontheradio.JohnwascleaninghisroomwhenMaryturnedontheradio.4.WhileJohnwasshopping,Marytookthecartothecarwash.JohnwasshoppingwhenMarytookthecartothecarwash.JohnMaryplaythepianoleavethehousecleanhisroomturnontheradioshoptakethecartothecarwashPracticeLookatthetableandwritesentenceswithbothwhileandwhen.JohnMarytakephotosbuyadrinkplaythepianoleavethehousecleanhisroomturnontheradioshoptakethecartothecarwash瞬間性動詞4a延續(xù)性動詞WhileJohnwascleaninghisroom,Maryturnedontheradio.JohnwascleaninghisroomwhenMaryturned

ontheradio.JohnMarytakephotosbuyadrinkplaythepianoleavethehousecleanhisroomturnontheradioshoptakethecartothecarwashFillintheblankswithwas,were,whenorwhile.4bAt7:00a.m.,Iwokeup.______I______makingmybreakfast,mybrother_______listeningtotheradio._______Iwaseating,theradionewstalkedaboutacaraccidentnearourhome.MybrotherandIwentoutrightawaytohavealook.WhilewaswasWhile_______wegottotheplaceoftheaccident,thecar______inbadshapefromhittingatree.Butluckily,thedriver_______fine.Theroads________icybecauseoftheheavysnowfromthenightbefore.Whenwaswaswereicyadj.覆蓋著冰的；冰冷的icen.

冰看一看WhatwereyoudoingatthesetimeslastSunday?Fillinthechart.Thenaskyourpartner.4cYouYourpartner9:00a.m.11:00a.m.4:00p.m.9:00p.m.Exercise1.Sallytookaphotoofherfriendswhilethey__________(play)computergames.2.Justaminute!Mybrother___________(wash)hiscarinthegarden.3.—CanPeterplaygameswithus,Mrs.Hawking?—Waitaminute.He_________(take)ashower.4.Myuncle__________(read)booksintheroomatthistimeyesterday.5.Iwasplayingcomputergameswhenmymothercameintomyroom.(同義句轉(zhuǎn)換)_________________________________________________________While/WhenIwasplayingcomputergames,mymothercameintomyroom.wereplayingiswashingistakingwasreadingExercises1.—Whydidthecarhittheboy?—Becausethedriver______onthephoneatthattime.A.talkB.istalkingC.wastalking