過(guò)去進(jìn)行時(shí)的結(jié)構(gòu)

過(guò)去進(jìn)行時(shí)的結(jié)構(gòu)： 1. 過(guò)去進(jìn)行時(shí)由“主語(yǔ)+was/were + 現(xiàn)在分詞”構(gòu)成 如: We were having supper when the phone rang. 我們正在吃晚飯時(shí)電話(huà)響了。 2. 過(guò)去進(jìn)行時(shí)的否定式由“主語(yǔ)+was/were not +現(xiàn)在分詞”構(gòu)成 如: This time yesterday Jack was not watching TV. He was...

一、過(guò)去進(jìn)行時(shí)的概念 表示過(guò)去某一時(shí)刻正在進(jìn)行的動(dòng)作或過(guò)去某一階段一直進(jìn)行的動(dòng)作。 例：I was doing my homework at 9:00 pm last night. 二、過(guò)去進(jìn)行時(shí)的構(gòu)成： （1）肯定句：主語(yǔ)+was/were+現(xiàn)在分詞+其他 例：He was working when I came in. （2）否定句：主語(yǔ)+was/were+not+現(xiàn)在分詞+其他 例...