Unit5SectionA(GrammarFocus-4c)课件人教版英语八年级下册2

Unit5SectionA(语法课)过去进行时

Whatwereyoudoingwhentherainstormcame?学习目标能正确的使用连词When和while(ConjunctionsWhenandWhile)，when和while的用法及区别。语言能力通过小组合作总结语法规律，学会正确使用过去进行时。并且用过去进行时描述自己过去的事件。思维品质1.鼓励学生仔细观察周围事物并善于发现生活中的美。

2.发展学生的合作精神和乐观的态度。文化意识能够用过去进行时谈论过去发生的事情，能够正确运用when和while引导的时间状语从句。通过掌握这些描述的词，进行简单的对话及进行句子的仿写。

学习能力IthrewawishinthewellDon'taskme,I'llnevertellIlookedtoyouasitfellandnowyou'reinmywayI’dtrademysoulforawishpenniesanddimesforakissIwasn'tlookingforthisbutnowyou'reinmywayYourstarewasholdingRippedjeansskinwasshowingHotnight,windwasblowingWhereyouthinkyou'regoing,babyHey,Ijustmetyouandthisiscrazybuthere'smynumbersocallmemaybeCallMeMaybe----CarlyRaeJepsen过去进行时:was/were+动词的现在分词Iwasn'tlookingforthisbutnowyou'reinmywayYourstarewasholdingRippedjeansskinwasshowingHotnight,windwasblowingThemanwasbuyinganicecream.Thegirlwascatchingtheicecream.Thegirlwassearchingherbag.Theboywaslookingathiswatch.Thewomanwasreading.Themanwaspayingfortheticket.Themanwaswaitingforhisguests.Themanwasstandingintheline.过去某一时刻正在进行的动作

过去一段时间正在进行的动作Shewasdoinghomeworkfrom8:00to10:00yesterday.HewasworkinginabankwhenIworkedthere.Yourphonewasringinguntilyouwalkedin.Hewaslookingforjobsthosedays.was/were+动词的现在分词表示过去表示进行过去进行时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.定义：表示过去某个时刻或某一时间段内正在进行或发生的动作。常用的时间状语：atthis/thattimeyesterday,atsixyesterdaymorning,allnight等。构成：was/were+动词-ing形式当主语是第一人称单数形式或第三人称单数形式时，be动词用was，其余人称用were。过去进行时过去进行时含义:表示过去某个时刻

正在进行的动作。结构：

was/were+doing例句：IwashavinganEnglishclassatthistimeyesterday.现在进行时含义:表示现在正在进行

的动作。结构：

is/am/are+doing例句：IamhavinganEnglishclass.

Grammar过去进行时1.含义

表示在_______________或____________

正在进行的动作。2.结构________________过去某一时刻某一段时间Iwastakingashowerateightlastnight.Theyweredoing

theirhomeworkfrom17:00to18:00yesterdayafternoon.was/were+Ving结构：was/were+doing(动词-ing形式)用法：表示过去某时刻或某一段时间正在进行的动作。1.表示过去某个时间点正在发生的动作。Hewascookingatthattime.2.表示过去某段时间正在发生的动作。Iwastalkingonthephonefrom7to8lastnight.

考向1：过去进行时的用法谓语动词：was/were+动词的现在分词表示过去表示进行口诀规则例子直1.一般情况下，直接在动词之后+ing.play—playingstudy—studying去2.以不发音的e结尾的动词，去e再加ing.take—takingdance—dancing双3.重读闭音节的动词，双写尾字母

再加ing.cut—cuttingswim—swimming变4.以ie结尾的动词，把ie变为y再加ing.lie—lyingdie—dyingtie—tying过去进行时基本句式Grammar

Wereyoucookingdinner?Iwas

not

cookingdinner.Iwas

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

doingtheirhomework.Theywere

not

doingtheirhomework.

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

的时间状语从句1.常用时间状语：

at7:00lastnight,atthattime,atthistimeyesterday,yesterdaymorning,from10to12,allmorning,thewholemorning…Tomwasrunningtothebusstopat7:50thismorning.Tomwaswaitingforthebusfrom7to9thismorning.Tomwaswritingastoryatthistimeyesterday.修饰时间状语IwaswatchingTVthewholenight.Wewerehavingclassesalldayyesterday.2.过去一段时间正在进行的动作

常与thewholeday,alldayyesterday等时间状语连用。有时没有明显的时间状语，可根据上下文语境判断。MissLiwasshoppingatthistimeyesterday.IwaslookingformylostcatatninelastMondaymorning.1.过去某一时刻正在进行的动作

与表示过去某一时间点的时间状语连用，如at3o'clockyesterdayafternoon,atthis/thattimeyesterday等。Summary

过去进行时和一般过去时的区别1)过去进行时表示过去正在进行的动作,2）

一般过去时表示过去某个时间发生过的动作。

如：Davidwrotealettertohisfriendlastnight.大卫昨晚给他的朋友写了封信。(信写完了。)Davidwaswritingalettertohisfriendlastnight.大卫昨晚一直在给他的朋友写信。(信不一定写完。)过去进行时的基本用法

eg：IwaswatchingTVthewholenight.Wewerehavingclassesalldayyesterday.表示过去某一段时间内一直进行的动作，常与thewholeday,alldayyesterday等时间状语连用。有时没有明显的时间状语，可根据上下文语境判断。eg：MissLiwasshoppingatthistimeyesterday.IwaslookingformylostcatatninelastMondaymorning.表示过去某一时刻正在进行或发生的动作，与表示过去某一时间点的时间状语连用，如at3o'clockyesterdayafternoon,atthistimeyesterday等。现在分词变化形式（+ing）（直去双少）变化规则例词一般情况下直接加-ingreadreadingjumpjumpingsleepsleeping以不发音字母e结尾的动词，去掉e再加-ingtaketakingwritewritingwakewaking以重读闭音节结尾且末尾只有一个辅音字母的动词，双写该辅音字母后再加-ingrunrunningswimswimmingputputting少数几个以ie结尾的动词要变ie为y,再加-ingdie死亡dyinglie躺下lyingtie捆绑tyingGrammarFocusWhatwereyoudoingateightlastnight?Iwastakingashower.Whatwasshedoingatthetimeoftherainstorm?Shewasdoingherhomework.Whatwashedoingwhentherainstormcame?Hewasreadinginthelibrarywhentherainstormcame.WhatwasBendoingwhenitbegantorainheavily?Whenitbegantorain,Benwashelpingmakedinner.WhatwasJennydoingwhileLindawassleeping?WhileLindawassleeping,JennywashelpingMarywithherhomework.Underlinetheadverbialclauseoftime.找出when&while引导的时间状语从句并划线

while+句子

表达一段时间when+句子

表达时间点

IlostmykeywhenIwaswalkinginthepark.=

IlostmykeywhileIwaswalkinginthepark.

/时间段瞬间动词持续动词持续动词Summary不同点1（从句的谓语动词）不同点2（主句从句里的动作）不同点3（从句的时态）when延续性动词瞬间性动词同时发生一前一后常接一般过去时的从句while表状态的延续性动词同时发生常接过去进行时的从句when&while的区别注意：表示主从句正在进行的动作或状态的对比时多用while：

Whileshewasmakingaphonecall,Iwaswritingaletter.4a.Lookatthetableandwritesentenceswithbothwhileandwhen.JohnMarytakephotosbuyadrinkplaythepianoleavethehousecleanhisroomturnontheradioshoptakethecartothecarwash1.WhileJohnwastakingphotos,Maryboughtadrink.JohnwastakingphotoswhenMaryboughtadrink.presentation2.WhileJohnwasplayingthepiano,Maryleftthehouse.JohnwasplayingthepianowhenMaryleftthehouse.3.WhileJohnwascleaninghisroom,Maryturnedontheradio.JohnwascleaninghisroomwhenMaryturnedontheradio.4.WhileJohnwasshopping,Marytookthecartothecarwash.JohnwasshoppingwhenMarytookthecartothecarwash.JohnMaryplaythepianoleavethehousecleanhisroomturnontheradioshoptakethecartothecarwashPracticeLookatthetableandwritesentenceswithbothwhileandwhen.JohnMarytakephotosbuyadrinkplaythepianoleavethehousecleanhisroomturnontheradioshoptakethecartothecarwash瞬间性动词4a延续性动词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.覆盖着冰的；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.(同义句转换)_________________________________________________________While/WhenIwasplayingcomputergames,mymothercameintomyroom.wereplayingiswashingistakingwasreadingExercises1.—Whydidthecarhittheboy?—Becausethedriver______onthephoneatthattime.A.talkB.istalkingC.wastalking