(三)过去进行时过去进行时表示过去某一点时间正在进行的动作或者过去某一段时间内一直进行的动作。1.构成was/were+doing,例如:IwaswatchingTVat9o’clocklastnight.at9o’clocklastnight是时间点Theywereplayingfootballallafternoon.allafternoon是时间段2.过去进行时的标志词at8o’clocklastnight,thistimeyesterday等。例如:Iwashavinglunchathomethistimeyesterday.昨天的这个时候我正在吃午饭。Atthattimeshewaswritingabook.那阵子她在写一本书。(表示她在那段时间里一直在做那件事情。)★★练一练★★用括号中所给动词的适当形式填空。1.ThistimeyesterdayI__________(read)books.2.At9o’clocklastSundaythey____________(have)aparty.