UNIT 2 Section Ⅳ Discovering Useful Structures（课件PPT）-【新课程学案】新教材2023-2024学年高中英语必修2 （人教版）

Section Ⅳ　Discovering Useful Structures UNIT 2 　(语法项目——现在进行时的被动语态) 初识语法——在美文运用中体悟　 What is being done① to the world? Water is being polluted②， forests are being cut down③ and wild animals are being killed④.And in some places people are being punished⑤ for their actions.Although strict measures are being taken⑥ in some places, wildlife is still not being protected⑦ effectively. This is really very worrying.When will real and effective measures be taken to stop pollution and protect wildlife and their habitats? I sincerely hope that humans and nature can live in harmony, and the earth becomes a common home for humans and wildlife. ①为现在进行时的被动语态的特殊疑问式； ②③④⑤⑥为现在进行时的被动语态的肯定式； ⑦为现在进行时的被动语态的否定式。 慧学语法——运用“形式—意义—使用”三维动态语法观　 现在进行时的被动语态表示现在或现阶段正在进行或发生的被动动作，强调主语是动作的承受者。 一、结构　 [先感知] ①The sports meeting is being held in our school. ②It is reported that the water in the lake is not being protected now. ③Is the problem being discussed now? ④Who is being trained for the coming English speech contest? [会发现] ①句是现在进行时的被动语态的 形式； ②句是现在进行时的被动语态的 形式； ③句是现在进行时的被动语态的 形式； ④句是现在进行时的被动语态的 形式。 肯定 否定 一般疑问句 特殊疑问句 [明规则] 现在进行时的被动语态的构成： ①肯定式：主语＋am/is/are＋being done ②否定式：主语＋am/is/are＋not being done ③一般疑问式：Am/Is/Are＋主语＋being done ④特殊疑问式：特殊疑问词＋am/is/are(＋主语)＋being done　　 [对点练]　(句型转换) They are building a modern school in his hometown. →①A modern school by them in his hometown.(改为被动语态) →②A modern school by them in his hometown.(把①句改为否定句) is being built isn't being built →③ by them in his hometown？(把①句改为一般疑问句) →④ (对①句中in his hometown进行提问) Is a modern school being built Where is a modern school being built by them？ 二、用法　 [先感知] ①My younger sister is now being interviewed. ②Many interesting experiments are being carried out these days. ③I feel very surprised tha