新概念二冊語法精粹四．過去進行時：were / was + 現(xiàn)在分詞
    1．表示過去某一時刻或階段正在發(fā)生的動作。
     I was playing chess at 8 yesterday evening.
     When I arrived, they were watching TV.
     They were doing housework this time last week.
    2．用于條件狀語從句中表示過去將來進行的動作。
     She told me to wake him up if she was sleeping.
     I asked my friend to warn me about it as long as I was driving too fast.
    3．過去某時將發(fā)生的事。可參考—2（4）
     They told me that they were leaving for New York.
     He was going out when I arrived.
    測試精編：
    1. My brother ________ while he ________ his bicycle and hurt himself.
     A. fell / was riding B. feel / were riding
     C. had fallen / rode D. had fallen / was riding
    2. He ________ his leg as he ________ in a football match.
     A. broke / played B. was breaking / was playing
     C. broke / was playing D. was breaking / played
    3. -Myfather will be here tomorrow. -I thought that he ________ today.
     A. was corning B. is coming
     C. will come D. comes
    4. Jack was going out of the shop when he collided with an old woman who ________ in.
     A. come B. was coming C. had been coming D. had come
    5. Michike couldn't come to the telephone when Mr. Smith called her because she ________ in the lab.
     A. had been working B. has been working
     C. was working D. worked