Unit 3 Learning About Language—语法•提升语言能力（课件PPT）-【新课程学案】新教材2022-2023学年高中英语选择性必修第二册（人教版2019）

Learning About Language —语法·提升语言能力 课时目标 1. 通过对比，感知过去完成时的主动语态和被动语态在形式、意义和功能上的区别和联系。 2. 能够正确使用这两种结构，并在语境中体会其意义和功能。 3. 能够在语境中运用两种结构进行口头表达。 语法项目——过去完成时和过去完成时的被动语态 初识语法——在美文运用中体悟　 The primary school in my village was built several years ago. It ①had been famous throughout the town before I studied there. By 1978, the school ②had been changed several times. By the end of last century, our school ③had become a model school. When I graduated, our school ④had won many honors. Before last year's anniversary of the founding of our school, most of the school buildings ⑤had been rebuilt and it is now larger and more beautiful than ever before. ①过去完成时。主从句的动作都发生在过去，动作在前的要用过去完成时； ②过去完成时的被动语态。时间状语为by介词短语，表示过去的过去； ③过去完成时。动作发生在“过去的过去”； ④过去完成时。when引导的时间状语从句中动作发生在过去，主句动作在前，要用过去完成时； ⑤过去完成时的被动语态。表示动作发生在“过去的过去”。 慧学语法——运用“形式—意义—使用”三维动态语法观　 [自主感知] ①(教材P26典句)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(教材P26典句)When my family and I had just arrived in China, we went looking for a good place to eat in Beijing. ③(教材P26典句)A Sichuan restaurant had been recommended to us by a friend, and finally, we found it. ④(教材P26典句)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. ⑤Had you visited the Forbidden City before you came here last year? ⑥I hadn't finished reading the book by nine o'clock last night. ⑦What had you done before the boss made the decision? ⑧Had he learned English before he moved to Australia? [会发现]　过去完成时及其被动语态的构成 种类 构成 匹配例句(只填写序号) 肯定句 主语＋had＋过去分词＋其他成分． _____ 否定句 主语＋had＋not＋过去分词＋其他成分． ____ 一般 疑问句 Had＋主语＋过去分词＋其他成分？ 肯定回答：Yes, 主语＋had. 否定回答：No, 主语＋had not. ______ 特殊 疑问句 特殊疑问词＋had＋主语＋过去分词＋其他成分？ ____ 被动结构 主语＋had (not) been done＋其他成分． _____ ②④ ⑥ ⑤⑧ ⑦ ①③ [规则点拨] 一、过去完成时 　 (一)概念 过去完成时表示在过去某一时间或某一动作之前已经发生或完成了的动作或状态，也就是说动作发生在“过去的过去”。 (二)用法 1．表示过去的过去。 可以用by, before等介词短语或