Unit 5 Period Three（课件）-2019-2020学年高中新教材英语第一册【步步高】学案导学与随堂笔记（人教版） (共20张PPT)

Unit 5　Languages Around the World PART 1 语法导学 PART 2 达标检测 Period Three　Discovering Useful Structures—Restrictive Relative Clauses(2) PART 1 语法导学 感知以下课文原句，完成方框下的小题。 ◆语法感知 1.There are many reasons why this has been possible，but one of the main factors has been the Chinese writing system. 2.These were animal bones and shells on which symbols were carved by ancient Chinese people. 3.Over the years,the system developed into different forms,as it was a time when people were divided geographically,leading to many varieties of dialects and characters. 4.Emperor Qinshihuang united the seven major states into one unified country where the Chinese writing system began to develop in one direction. 5.Written Chinese has also become an important means by which China’s present is connected with its past. 1.关系副词where在定语从句中作 (句4)。 2.关系副词when在定语从句中作 (句3)。 3.关系副词why在定语从句中作 (句1)。 4.“介词＋which”在定语从句中作状语(句 )。 地点状语 时间状语 原因状语 2,5 一、关系副词引导的定语从句 当先行词在定语从句中作状语时，通常要用关系副词引导定语从句。常用的关系副词有where，when，why等。 1.关系副词where where引导的定语从句的先行词往往是表示地点的名词(如place，room，house，spot，school，country等)，关系副词where在从句中作地点状语。 They went into the hall where the meeting was being held. 他们走进正在开会的大厅。 The office where he works is not far from here. 他工作的办公室离这儿不远。 ◆语法精析 [温馨提示] where引导定语从句和状语从句的区别：引导定语从句时，where是关系副词，在从句中作地点状语，其前有表示地点的名词作先行词，从句修饰先行词；引导状语从句时，where是从属连词，从句修饰主句的谓语动词，where前面没有表示地点的名词。 He’s got himself into a dangerous situation where he is likely to lose control over the plane.(定语从句) 他使自己陷入了一种危险的情况，他很可能会失去对飞机的控制。 When you read the book，you’d better make a mark where you have questions.(状语从句) 读这本书的时候，你最好在有疑问的地方做一下标记。 2.关系副词when when引导定语从句时，先行词往往是表示时间的名词(如time，day，week，month，year等)，关系副词when在从句中作时间状语。 He came at a time when I least expected him. 他在我最意料不到的时候来了。 I’ll never forget the day when I left for college with my father. 我永远不会忘记我和父亲动身去大学的那天。 3.关系副词why why引导定语从句时，先行词常为reason，关系副词why在从句中作原因状语。 Do you know the reason why she burst into tears? 你知道她突然大哭的原因吗？ [温