动词时态总复习之七过去完成时：概念：以过去某一时间为标准，在此以前发生的动作或行为，或在过去某动作之前完成的行为，即“过去的过去”。【自我检测】：1. By the end of last term, we _over two thousand new words.A. learned B. have learned C. will learn D. had learned2. By the time I _back they _up ten meters.A. came, have climbed B. came, had climbedC. come, have climbed D. had come, climbed3. He _ the Army in 1992. He _ in the army since then.A. joinedis B. has joinedhas beenC. had joinedis D. joined has been4. I realized that the meeting_ for five minutes when I got there.A. had begun B. had been on C. has begun D. has been on5. By the time you arrived in London, we _ in Europefor two weeksAhad stayed Bshall stay Cwill have stayedDhave been staying【自我小结】判断是否用过去完成时必须有两个动作发生时间的对比。1.一个动作发生在过去，另一个动作在它之前发生，即为过去的过去，用_时态，其结构是：_+动词的过去分词。2.判断是否用过去完成时常注意的标志词有：by the time.在.之前，和before/after 连接的时间状语从句。3.过去完成时常用于宾语从句中。【自我思考】1. 过去完成时和现在完成时、一般过去时有区别吗？2.过去完成时的句子其肯定形式，否定形式和疑问形式各是什么？【能力提升】用所给动词的正确形式填空。1. We already (have) supper 2. when he (come) back .3. He (say) that he never (see) such an exciting match before .3. This morning I had hardly got to my school when it_ to rain. 【2011山东菏泽】 A. had begun B. was beginning C. began D. begins 4. By the time I got to the cinema, the movie _ for ten minutes. 【2011河源】 A. had begun B. had been on C. has started D. has been on5. By the end of last month, I _ all the CDs of Justin Bieber. 【2011上海】 A. collect B. collected C. have collected D. had collected2