Unit 3 Food and Culture Discover Useful Structures 过去完成时及其被动语态课件-2023-2024学年高中英语人教版（2019）选择性必修第二册

UNIT 3 FOOD AND CULTURE Discover Useful Structures 1 Teaching objectives: In this class, you will recognize and summarize the meaning, form and use of the past perfect tense and the past perfect passive voice; use the past perfect tense and the past perfect passive voice to describe a situation that happened in the past. 2 Lead in 动词的变体 第三人称单数 过去式 现在分词 原形 过去分词 does做 did做 doing做 do做 done做 eats吃 ate吃 eating吃 eat吃 eaten吃 3 1. I _________ my homework every day. 我每天做作业。 2. I _________ my homework yesterday. 我昨天做了作业。 3. I _____________ my homework now. 我现在正在做作业。 do 时态：一般现在时 结构：动词原形/第三人称单数 did 时态：一般过去时 结构：动词过去式 am doing 时态：现在进行时 结构：am/ is/ are +动词ing 4. I _________ my homework tomorrow. 我明天要做作业。 时态：一般将来时 结构：will/ shall/ be going to +动词原形 will do Q1：什么是过去完成时？ Q2：过去完成时的结构？ Q3：过去完成时时间状语有哪些？ Q4：隐形的过去完成时 一、过去完成时 Q1：什么是过去完成时？ By the time the policeman got to the shop, the thief had run away. 警察到商店时，小偷已经逃跑了。 过去 现在 将来 过去完成时是表示过去某个时间之前已经发生的动作或一直延续的动作或状态。→“过去的过去” 理解“过去的过去” ： 过去 过去的过去 现在 先发生的动作用过去完成时，后发生的动作用一般过去时。 例：The film had begun before we got to the cinema. 我到达电影院之前电影已经开始了。 had begun got Q2：过去完成时的结构？ 主动语态 被动语态 肯定形式 had done had been done 否定形式 had not done had not been done 一般疑问句 had＋主语＋done had＋主语＋been done 特殊疑问句 疑问词＋had＋主语＋done 疑问词＋had＋主语＋been done ①When my family and I had just arrived in China, we went looking for a good place to eat in Beijing. ②A Sichuan restaurant had been recommended to us by a friend, and finally, we found it. 观察下面句子，说出划线部分的结构类型及句中功能。 ①划线部分是____________________，arrive这个动作是发生在went这个动作之前，表示过去的过去。 ②划线部分是____________________，recommend这个动作是发生在found这个动作之前，而且是被动动作。 过去完成时的主动语态　 过去完成时的被动语态　 After he _____________ (finish) his homework, he went to bed. 3.The class ____________ (begin)when I got to school. 4.The work _____________________(finish)by us by nine o ’clock yesterday. 5.Tom realized a mistake ____________________(make)by her. 5.He _________(leave) before I got home. 语法填空。 had finished had b