高考英语一轮复习——过去完成时（共15张PPT）(共15张PPT)

Past perfect tense had + 动词的过去分词 (p.p.) 定义： 过去完成时： 表示在过去的某一时间或动作之前已经发生或完成了的动作。即：过去的过去。 1.在老师进入教室前, 李磊擦了黑 板. LiLei ______________ (clean) the blackboard by the time the teacher came into the classroom. had cleaned 2. 当我们到那儿时火车已经离开了。 The train __________ (leave) when we arrived there. had left 构成： “过去的过去（ past-in-the-past ）”。　　　　　 past in the past past now 过去完成时的判断依据: 由“过去的过去”来判定。 过去完成时表示“过去的过去”，先发生的动作用过去完成时，后发生的动作用一般过去时。 When I got to the station, the train had already left. After he had finished his homework, he went to bed. first first 过去完成时的否定形式： 过去完成时的疑问形式： 主语＋had not／hadn’t+ p.p.+其它. Had+主语＋p.p.+其它? 按要求改写下列句子． Simon had finished his homework before he watched TV. 否定句： 疑问句： 肯定回答： 否定回答： Simon hadn’t finished his homework before he watched TV. Had Simon finished his homework before he watched TV? Yes, he had. No, he hadn’t. 用法 与什么时间状语连用？ 与过去完成时连用的时间状语有： （ 1 ） by + 过去的时间点。 如： I had finished reading the novel by nine o'clock last night. （ 2 ） by the end of + 过去的时间点