UNIT 5 Section Ⅳ Discovering Useful Structures-【金版新学案】2023-2024学年新教材高一英语必修第一册同步课堂高效讲义配套课件（人教版2019）

Section Ⅳ　Discovering Useful Structures 　 UNIT 5　LANGUAGES　AROUND　THE　WORLD 课 时 精 练 语 法 探 究 边 角 拾 遗 内 容 索 引 语　法　探　究 索引 新知导学 限制性定语从句(2) 教材示例 分析下列加黑部分并体会它的语法功能 1．(教材原句)...was a time when people were divided geographically... 2．(教材原句)Emperor Qinshihuang united the seven major states into one unified country where the Chinese writing system began to develop in one direction. 3．(教材原句)There are many reasons why this has been possible，but one of the main factors has been the Chinese writing system. 4．(教材原句)... animal bones and shells on which symbols were carved by ancient Chinese people. 我的发现 1．关系副词where在定语从句中作__________(句2)。 2．关系副词when在定语从句中作__________(句1)。 3．关系副词why在定语从句中作__________(句3)。 4．“介词＋which”在定语从句中作__________(句4)。 地点状语 时间状语 原因状语 地点状语 语法精讲 一、关系副词引导的定语从句 关系副词的指代及功能： 关系副词 先行词 功能 when 表示时间的名词 时间状语 where 表示地点的名词 地点状语 why reason 原因状语 1.关系副词when引导定语从句时，先行词应是表示时间的名词，关系词在从句中作时间状语。 I still remember the time when I first travelled by plane.我仍然记得我第一次坐飞机旅行的时候。 2．关系副词where引导定语从句时，先行词应是表示地点或抽象地点的名词，关系词在从句中作地点状语。 They have reached the point where they have to part.他们已经到了分手的地步。 3．关系副词why引导定语从句时，先行词常常为reason，关系词在从句中作原因状语。 Can you tell me the reason why you didn't come to his birthday party? 你能告诉我你没参加他的生日聚会的原因吗？ 表示时间、地点及原因的名词作先行词时，定语从句可用关系代词引导，也可用关系副词引导。若先行词在定语从句中作状语，应用关系副词；若先行词在定语从句中作主语、宾语或表语，则应用关系代词。试比较： Do you remember the days when we chatted with each other all night? 你还记得我们彻夜聊天的那些日子吗？(when在从句中作状语) Do you remember the days that/which we spent together on the farm? 你还记得我们在农场一起度过的那些日子吗？(that或which在从句中作spent的宾语)　 温馨提示 The reason why/for which you failed was that you had not followed your mother's advice. 你失败的原因是你没有听你母亲的忠告。(定语从句中缺少状语，所以用why或for which，why作原因状语) I won't believe the reason that/which you have given us. 我坚决不信你给我们提供的那个理由。(定语从句中缺少宾语，所以用that/which，不用why)　　 温馨提示 ◎巧学活用1 对比填空：that，which，when，where，why ①I will never forget the days ______ we stayed together. ②The reason _____________ he explained at the meeting was not sound. ③The reason _____ he was late was that