1、-,1,過去進(jìn)行時(shí),-,2,一、定義過去進(jìn)行時(shí)表示在過去某一時(shí)刻或某一段時(shí)間內(nèi)進(jìn)行或發(fā)生的動作，不一定已完成。其形式為was/were+V-ing。,-,3,二、過去進(jìn)行時(shí)的用法1.表示過去某一時(shí)間（正在）進(jìn)行的動作。IwaswatchingTVat7lastnight.Iwassleepingwhenitstartedtorain.*2.表示過去某一階段正在進(jìn)行的或暫時(shí)性的動作。Atthattime,IwasworkinginSydney.3.表示一動作正在進(jìn)行時(shí)，另一動作同時(shí)突然發(fā)生。(1)用while連接（while只接doing,用延續(xù)性動詞）(2）when表示（when可以接doin

2、g或did，動詞可以是延續(xù)性的也可是短暫性的，when后動作時(shí)間長，用doing，時(shí)間短，用did）IwaswatchingTVwhensomeoneknockedatthedoor.Someoneknockedthedoorwhile/whenIwaswatchingTV.,-,4,思考：“Iwaswalkingpastthecarwhileitsuddenlyexploded.(爆炸)”正確與否？4.用于故事，以提供其時(shí)間背景Marywasdancing，butshestoppedwhenshesawme.WhenIwasworkinginthegarden,theaccidenthapp

3、ened.*5.帶感情色彩，使描述生動。Shewasalwayshelpingotherswhenshelivedhere.,-,5,三、過去進(jìn)行時(shí)的用法常用的時(shí)間狀語atthatmoment,attenoclocklastnight,(at)thistimeoflastyear,lastnight,alldayyesterday,thismorning,thewholemorning,fromninetotenlastevening,when,while等。e.g.I_(read)anewspaperat7lastnight.He_(clean)theyardwhenhissoncameho

4、me.They_(play)veryhardatthistimeoflastyear.,-,6,四、與一般過去時(shí)的對比都強(qiáng)調(diào)過去發(fā)生的事但用一般過去時(shí)，只是表示有過這件事（已做完）；用過去進(jìn)行時(shí)，則強(qiáng)調(diào)了動作的連續(xù)性（未必已完成）。e.g.Iwasreadingabookthatevening.那天晚上我一直在讀書。（未讀完）Ireadabookthatevening.那天晚上我讀了一本書。（已讀完）,-,7,練習(xí)：1.（04中考）Someone_atthedoorwhenTomwashavinghissupper.A.hadknockedB.hasknockedC.knocked2.（05中

5、考）Someone_atthedoorwhenshewascookinginthekitchen.A.hadknockedB.hasknockedC.knocked3.Itwaswarm,soI_(take)offmycoat.4MybrothercameintothebedroomwhileI_(dance).5_he_(lie)onthegroundatnineyesterdayevening?,-,8,6What_Jim_(write)whentheteachercamein?7MikeandI_(play)basketballatthattimeyesterdayafternoon.8

6、IfirstmetLisathreeyearsago.She_(work)ataradioshopatthetime.9.WhenIarrivedathisoffice,he_onthephone.(speak)10.Whilewe_(wait)forthebus,agirl_(run)uptous.11.She_(notwant)tostayinbedwhiletheothers_(all,work)inthefieldsthatmorning.12.Whilemymother_(put)Cathytobed,thedoorbell_(ring)thatnight.,-,9,13.AsI_(walk)inthepark,it_(begin)torain.14.Evenwhenshe_(be)achildshe_(already,think)ofbecomingaballerina(芭蕾舞演員).15.Itwasquitelateatnight.George_(read)andAmy_(ply)herneedlewhenthey_(hear)aknockatthedoor.16.There_(be)agrouproundthefirewhenthey_(reach)it.