人教版高中英语必修三学案Unit4AstronomyIt作形式主语

学科 英语 年级/册 高一（下） 教材版本 人教版 课题名称 必修 3 unit4 Astronomy: the science of the stars --- It 作形式主语 难点名称 It+be+过去分词+that 结构 难点分析 从知识角度分析为 什么难 结构本身属于高层次知识点，被动语态糅杂在各个时态中，在学习和运用中要准 确把握是一大难点，再运用到该结构中变成主语从句，更是显得抽象。 从学生角度分析为 什么难 学生对被动语态的掌握还不熟练，尤其在高一阶段。初中所学时态有限且掌握不 够，再学习该结构体会主语从句的用法，更显得抽象难懂，从心底就有畏难情绪。 难点教学方法 1. 图文结合 2. 句子转换 教学环节 教学过程 导入 1. Show some pictures about COVID-19, 2. Provide some sentences to describe. ·As is known to all, COVID-19 hit Wuhan, Hubei in December 2019. ·According to the recent report, many countries in the world are being threatened by COVID-19. ·As Chinese, We all strongly believe Wuhan can win in the virus battle in the end because of mutual effort and its hero history. 知识讲解 （难点突破） 1.Introduce the structure briefly. It 作形式主语 It+be+过去分词+that... 过去分词： (introduce the words) ---said, known,(irregular) ---reported, believed, suggested, requested, expected…(regular) 2.Rewrite the sentences introduced before. ·As is known to all, COVID-19 hit Wuhan, Hubei in December 2019. ·According to the recent report, many countries in the world are being threatened by COVID-19. ·As Chinese, We all strongly believe Wuhan can win in the virus battle in the end because of mutual effort and its hero history. ·It is known that COVID-19 hit Wuhan, Hubei in December 2019. ·It is reported recently that many countries in the world are being threatened by COVID-19. ·It is strongly believed that Wuhan can win in the virus battle in the end because of mutual effort and its hero history. 课堂练习 （难点巩固） Combine pictures and situations about COVID-19 at this time in Xinjiang, finish the sentences with right forms. ·It is informed (inform) that the No.1 subway in Urumqi was stopped in July 16,2020. ·It is announced(announce) that Xinjiang government is arranging to take practical measures to fight the virus. ·It is expected(expect) that Chen Quanguo comes to do some research timely in the stricken area. ·It is hoped(hope) that the residents could behave themselves well during the nucleic acid testing(核酸 检测). ·It is requested(request) that residents stay at home and ask volunteers for help if necessary. ·I t is moved(move) that all of our nation unite tightly together for fighting . ·It is strongly believed (believe)that Urumqi will bring victory in the near future. 小结 1.Draw a summary. It 作形式主语 It+be+过去分词+that... 过去分词： ---said, known,(irregular) ---reported, believed, suggested, requested, expected…(regular) 3. Value instruction. It’s strong and firm though struck and beaten without rest, Careless of the wind from north or south, east or west. Smile to the world and never give up.