Unit 3 Discover Useful Structures 课件-2022-2023学年高中英语人教版（2019）选择性必修第二册

Unit 3 Food and Culture Discovering Useful Structure The Past Perfect Tense The Past Perfect Passive Voice 过去完成时及过去完成时的被动语态 The past perfect tense The past perfect passive voice 概念和结构 用法和搭配 辨析和判定 练习 01 02 04 03 过去完成时和过去完成时的被动语态 Leading-in Look at the two pairs of sentences. The chef had set up a farm-to-table restaurant before his new cookbook was published. A new farm-to-table restaurant had been set up by the chef before his new cookbook was published. Underline the predicate verbs. Circle the conjunctions. 后 先 时态：过去完成时 语态：主动 结构：had done 先 时态：一般过去时 语态：被动 结构：was/were done 后 时态：过去完成时 语态：被动 结构：had been done 时态：一般过去时 语态：被动 结构：was/were done They had finished their dinner by the time Sam joined them. Their dinner had been finished by the time Sam joined them. 时态：一般过去时 语态：主动 结构：did 动作：后发生 时态：过去完成时 语态：被动 结构：had been done 动作：先发生 时态：一般过去时 语态：主动 结构：did 动作：后发生 Try to analyse the sentences below. 时态：过去完成时 语态：主动 结构：had done 动作：先发生 观察例句 右侧两组例句都是过去完成时，上面的句子主语为人，使用了主动语态，下面的句子主语为物品，使用了被动语态。 1. The chef had set up a farm-to-table restaurant before his new cookbook was published. A new farm-to-table restaurant had been set up by the chef before his new cookbook was published. 2. They had finished their dinner by the time Sam joined them. Their dinner had been finished by the time Sam joined them. 语法概念 过去完成时表示过去某一时刻或某一动作之前已完成的动作或状态（亦可以说是“过去的过去”）。 过去完成时由“had+过去分词”构成。 任务2 Find more sentences using the past perfect tense or the past perfect passive voice from this unit. 任务 1 1. 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. 2. A Sichuan restaurant had been recommended to us by a friend, and finally, we found it. Complete the two conversations with the correct forms of the words in the box using the past perfect tense or the past perfect passive voice. 1 Carol: ______ you ever _______ any Scottish food before your trip to St Andrews last year? Paul: No, not really. But I ____________