Unit2 Discovering Useful Structures——语法·提升语言能力（课件PPT）- 【新课程学案】新教材2022-2023学年高中英语必修第二册（人教版2019）

Discovering Useful Structures—语法·提升语言能力 课时目标 1.能熟练掌握现在进行时被动语态的形式和意义。 2.能在语篇层面正确运用，以使语言表达更准确、生动。 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 ①What is being done to the world? Water ②is being polluted, forests ③are being cut down and wild animals ④are being killed.And in some places people ⑤are being punished for their actions.Although strict measures ⑥are being taken in some places, wildlife ⑦is still not being protected 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句为现在进行时的被动语态的特殊疑问式； ②③④⑤⑥句为现在进行时的被动语态的肯定式； ⑦句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。 [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　　 肯定 否定 一般疑问句 特殊疑问句 [对点练]　(句型转换) They are building a modern school in his hometown. →①A modern school _____________in his hometown.(改为被动语态) →②A modern school __________________in his hometown.(把①句改为否定句) →③____________________________ in his hometown？(把①句改为一般疑问句) →④_______________________________________ (对①句就in his hometown进行提问) is being built isn't being built Is a modern school being built Where is a modern school being built？ 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 that the window of our classroom is often being broken. ④The Wi