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课件网) Unit 5 Discovering Useful Structures 定语从句———关系副词 (where, when, why, prep.+which/whom) 1. 通过对教材例句的理解, 掌握关系副词或“介词+关系代词”引导的限制性定语从句的用法。 2. 以练促学, 巩固关系副词或“介词+关系代词”引导的限制性定语从句的用法, 并学以致用。 Learning objectives 在复合句中, 修饰某一 _____ 或 _____ 的从句叫定语从句。被修饰的名词或代词叫 _____ , 定语从句一般放在先行词的_____ , 引导定语从句的词叫做 _____。 先行词 后面 关系词 名词 代词 先行词 关系词 定语从句 + + 指代先行词 连接主句和从句 在从句中充当成分 新 课 讲 授 关系副词的作用： 指代表示时间、地点、原因的先行词 连接主句和从句 在从句中充当句子成分—状语 引导定语从句的关系词有关系代词和关系副词。 关系代词：that, which, who, whom, whose, as 关系副词：when, where, why 关系副词 指代 在从句中充当的成分 例句 when The time when I arrived. was late at night. where The mines where I worked. were 9 km from my home. why The reason why I got a job. was because of my hard work. 一、关系副词的用法 time 时间状语 place reason 地点状语 原因状语 作状语，即从句成分齐全，不缺主，宾，表，定语。 如何区分关系代词和关系副词引导的定语从句： 表示时间、地点及原因的名词作先行词时, 关系词在定语从句中作状语时, 应用关系副词; 若关系词在定语从句中作主语、宾语和表语时, 则应用关系代词。 方法：分析从句句子成分 It was a time when people were divided geographically. 小结 1 when 引导定语从句时, 先行词为表示时间的名词 ( time, day, year, moment ), 关系词在从句中作时间状语。 关系副词 — when Emperor Qinshihuang united the seven major states into one unified country where the Chinese writing system began to develop in one direction. 小结 2 where引导定语从句时, 先行词为表示地点的名词 (place, spot, house, room, city, town, country), 关系词在从句中作地点状语。 关系副词 — where where 还可用在表示抽象意义的地点名词后, 如 situation (情形), stage (阶段), point (地步), case (情况), position (位置), condition, activity, scene, occasion等,意思是“到了某种地步, 在某种境况或情况中” 。 The accident has reached to the point where both their parents are to be called in. 关系副词 — where 特别提示 并非所有的表示“时间”和“地点”的先行词，后面的定语从句一定要用when和where引导。如果定语从句中缺少主语或宾语，就要用that或which引导。 This is the house _____ my father built last year. Do you still remember the days _____ we spent in the countryside that/which that/which 判断先行词在从句中的成分，用正确的关系词填空。 This is the reason _____ he went. The reason _____ he gave us was quite reasonable. This is the place _____ we visited last year. This is the place _____ he works. That was the time _____ he arrived. Do you still remember the time _____ we spent together which/that where when that/which why/for which that/which Practice There are many reasons why people learn a foreign language. 小结 3 why 引导定语从句时，先行词通常是reason , 关系词在从句中作原因状语。 关系副词 — why 二、“介词+关系代词”引导的定语从句 关系副词when, where, why引导定语从句时, 关系副词也可用“ ... ...
