Unit 3 Food and Culture Discovering useful structures过去完成时及其被动语态课件 -2023-2024学年人教版高中英语选择性必修第二册

Grammar——过去完成时 CHUANGXIN SHEJI 1.When my family and I had just arrived in China，we went looking for a good place to eat in Beijing. 2.Tired，hungry，and not knowing a word of Chinese，we had no idea how to order，so the chef just began filling our table with the best food we had ever eaten. 3.A Sichuan restaurant had been recommended to us by a friend，and finally，we found it. 4.Prior to coming to China，my only experience with Chinese cooking was in America，with Chinese food that had been changed to suit American tastes. 目录 CHUANGXIN SHEJI 一、基本构成 1.过去完成时的主动语态：谓语由“had＋过去分词”构成。   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 2.过去完成时的被动语态：谓语由“had＋been＋及物动词的过去分词”构成。 目录 CHUANGXIN SHEJI 练习 按要求完成练习/补全句子 ①He had already been to New York earlier in the week. →___________________________New York earlier in the week? (一般疑问句) →He ________________________New York earlier in the week.(否定句) →___________________________earlier in the week？(用where提问) ②___________________________ before you came here? 你来这里前还去过哪儿？ Had he already been to had not yet been to Where had he already been to Where had you been 目录 CHUANGXIN SHEJI 二、基本用法 1.一件事情发生在过去，而另外一件事情先于它发生(即“过去的过去”) 那么发生在前的动作要用过去完成时。 The elegant lady had finished reading the piece of science fiction by nine o’clock last night. 到昨天晚上九点，这位优雅的女士已经读完了那本科幻小说。 与过去完成时连用的时间状语常有： by＋过去的时间点； by the end of＋过去的时间点； before＋过去的时间点； 目录 CHUANGXIN SHEJI (1)hope，expect，mean，intend，want，suppose的过去完成时 表示过去未曾实现的愿望或意图。 We had wanted to help you，but we were too busy to get away. 我们本来想帮助你的，但忙得脱不开身(但未能如愿)。 2.过去完成时可以用于虚拟语气，表示与过去事实相反。 (2)过去完成时在if条件句中的运用 从句中谓语动词形式 主句中谓语动词形式 had＋过去分词 should/would/could＋have＋过去分词 If there had been no air in the tube，the result of the experiment would have been more accurate. 如果管子里没有空气，实验的结果就会更精确。 【含蓄虚拟条件句】 目录 CHUANGXIN SHEJI 2.过去完成时可以用于虚拟语气，表示与过去事实相反。 (3)过去完成时在I wish/