（人教版）九年级英语Unit12 Grammar Writing课件(共31张PPT)（优质课件）.ppt

文档分享 课件在线 教师教学说课 适用于教育教学、教师说课、学生作业、汇报总结 讲解人：教育者 * 课件在线 Grammar Writing Life is full of the unexpected. * 课件在线 【语境领悟】 仔细观察例句, 体会过去完成时的用法。 1. Before we got back home, the sun had set. 2. By the time I went to bed, my parents had fallen asleep. 3. When we arrived at the stadium, the soccer game had already started. 4. My math teacher said she had taught math for ten years. 5. She wondered who had left the window open. 过去完成时 * 课件在线 【知识构建】 * 课件在线 【学以致用】 Ⅰ. 用所给动词的适当形式填空 1.By the time I　　　　　(get) home, the rain ____________already　　　　　(stop). 2. When she got to the gym, the football match ____________already　　　　　(start). 3. I　　　　　(cook)the meal before my mother came back from work. 4. Laura said that she　　　　　(read)the novel before. 5. When she got to the cinema, the film 　　　　　(be)on for over ten minutes. got had stopped had started had cooked had read had been * 课件在线 Ⅱ. 单项填空 1. —Did you meet your friend at the train station? —No, I didn’t. By the time I arrived there, he　　　. A. leaves　　　　　　　B. left C. has left D. had left 2. By the end of last month, David　　　more than seven hundred stamps. A. has collected B. collected C. had collected D. has been collecting D C * 课件在线 1.By the time I got up, my brother had already gotten in the shower. 我起床的时候, 哥哥已经去洗澡了。 【句型剖析】 (1)by the time意为“到……时候; 在……之前”, 其 后接一般过去时的时间状语从句时, 主句通常用过 去完成时。 * 课件在线 (2)过去完成时表示某一动作或状态在过去某一时间或动作之前已经发生或完成。它表示发生的时间是“过去的过去”。过去完成时的结构: “助动词had+过去分词”。 By the time the storm ended, more than 100 people had been killed. 到暴风雨结束时, 已有100多人丧生。 * 课件在线 【学以致用】 (2013·枣庄中考)By the time I locked the door, I realized I　　　my keys at home. A. had repaired　　　　B. had changed C. had forgotten D. had left 【解析】句意: 直到我锁上门了, 我才意识到把钥匙遗忘在家里了。Repair“修理”; change“改变”; forget“忘记”; leave“遗忘”, 表示“遗忘某物”用leave。 D * 课件在线 2. go off 发出响声; 响起 【语境领悟】 My alarm clock didn’t go off!