過(guò)去進(jìn)行時(shí)when和while

過(guò)去進(jìn)行時(shí)的講與練時(shí)間：2021.02.02創(chuàng)作：歐陽(yáng)術(shù)一、 含義：過(guò)去進(jìn)行時(shí)表示過(guò)去某一時(shí)刻或者某段時(shí)間正在進(jìn)行或發(fā)生的動(dòng)作,常和表過(guò)去的時(shí)間狀培連用。過(guò)去進(jìn)行時(shí)表示感情色彩與現(xiàn)在進(jìn)行時(shí)相似,過(guò)去進(jìn)行時(shí)也可表示滿意、稱(chēng)贊、驚功、厭惡等感情色彩，也通常與always,forever等副詞連用。e.g：Theywerealwaysquarrelling.他們老是眇架。二、 過(guò)去進(jìn)行時(shí)的構(gòu)成和用法:肯定形式：主培+was/were+doing否定形式：主語(yǔ)+wasnot(wasnrt)/werenot(weren't)+doing疑間形式:Was/Were+壬培+doing。常與之連用的時(shí)間狀語(yǔ)有,atthattime/moment,(at)thistimeyesterday(lastnight/Simday/week...),at+點(diǎn)+yesterday(lastnight/Sunday...),when和while引導(dǎo)的時(shí)間狀語(yǔ)從旬。三、 when/while引導(dǎo)的時(shí)間狀培從句①由when/while引導(dǎo)的時(shí)間狀培從句。常用句型：a.壬句(主語(yǔ)+was/were+doing...when+—般過(guò)去時(shí)的倒子)；表示主句動(dòng)作發(fā)生的過(guò)程中，另一個(gè)意想不到的動(dòng)作發(fā)生ToWeweretalkingwhentheteachercamein.=Whileweweretalking,theteachercamein.b?主句(主培+was/were+doing...while+主培+was/were+doing...);主句與從旬的動(dòng)作都是延續(xù)性動(dòng)詞或同時(shí)發(fā)生的，兩句部用過(guò)去進(jìn)行時(shí)的時(shí)候,多用while引導(dǎo)★★★注意：when和while的區(qū)別：部意為"當(dāng)……時(shí)候"，when引導(dǎo)的旬子謂語(yǔ)動(dòng)詞用短暫性動(dòng)詞或延續(xù)性動(dòng)詞都行;但while引導(dǎo)的句子謂語(yǔ)動(dòng)詞只能用延續(xù)牲動(dòng)詞,不能用短暫性動(dòng)詞。②when和while還可作并列連詞。when表示"在那時(shí)"；while表示“而，卻二表對(duì)照關(guān)系。Thechildrenwererunningtomovethebagofricewhentheyheardthe sound of a motor bike.孩子們正要胞過(guò)去搬開(kāi)那袋米，這時(shí)他們聽(tīng)到了摩托車(chē)的聲音 。Heislisteningtomusicwhilehisbrotherisplayingcomputer.他正在昕音樂(lè)，而他弟弟卻在折電脂。廳短暫性動(dòng)詞是非延續(xù)性動(dòng)詞，即動(dòng)作一開(kāi)始便結(jié)束的動(dòng)詞,如come,go,begin,start,become,join,end,die,buy,arrive,歐陽(yáng)術(shù)創(chuàng)編2021.02.02 歐陽(yáng)美創(chuàng)編2021.02.02reach,borrow,lend,gettoknow等。持續(xù)性動(dòng)詞，如learn,study,work,play,wait等練習(xí)：用when或者while填空。(1)wewerewaitingforthebus,agirlranuptous.(2)1wastelephoningafriendBobcamein.(3)Jimjumpedonthebusitwasmovingaway.(4)Shewantedtostayinbedtheotherswereworkinginthefields.(5)motherwasputtingCathytobed,thedoorbellrang.(6)Hewaslisteningtomusichewasridinghisbike.(7)TheydidiVtmakeamodelshiplsawhim.(8)Heisstronghisbrotherisweak.四、一般過(guò)去時(shí)與過(guò)去進(jìn)行時(shí)的用法比較：一般過(guò)去時(shí)表示“在過(guò)去某個(gè)時(shí)間發(fā)生的動(dòng)作或存在的狀態(tài)”，而過(guò)去進(jìn)行時(shí)則表示“在過(guò)去某個(gè)特定時(shí)間正在進(jìn)行的動(dòng)作如:Tomwrotealettertohisfriendlastnight.湯姆昨晚給他的朋友寫(xiě)了封信。(信耳完了)Tomwaswritingalettertohisfriendlastnight.湯姆昨晚一直在給他的朋友寫(xiě)信。(信不一定寫(xiě)完，只是強(qiáng)調(diào)了動(dòng)作的延續(xù)性)。過(guò)去進(jìn)打時(shí)練習(xí)一、用動(dòng)詞的適當(dāng)形式填空。

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