Unit5 关系副词引导的定语从句学案 2022-2023学年高中英语外研版必修第一册

必修一 M5 关系副词引导的定语从句 引导定语从句的关系副词主要有三个：when, where, why。 1. 当先行词是表示时间的名词(time, day, year, month, week…),且关系词在从句中作时间状语时，定语从句用when引导。 e.g. I still remember the time when I was in college. I have forgotten the exact date when that country became independent. 【注意】当先行词是表示时间的名词时,若关系词在定语从句中充当时间状语,用when引导,有时that可以代替when;若关系词在定语从句中充当主语或宾语,用that 或which引导。 e.g. Do you remember the days (that/ which) we spent together on the farm? Do you still remember the days when we chatted with each other all night? 2.当先行词是表示具体地点的名词(place, room, mountain, airport…)或抽象地点的名词(case, state, condition, point, situation, occasion…),且关系词在从句中作地点状语时,定语从句用where引导。 e.g. The school where his sister works is a key middle school in Liaoning Province. He gets into a situation where it is hard to decide what is right or wrong. 【注意】当先行词为地点名词时，若关系词在定语从句中作主语或宾语，用that或which引导定语；作地点状语，用where引导。 e.g. His father works in a factory which/that makes radio parts. We have reached a point where a change is needed. 【辨析】where引导的定语从句和状语从句 – 根据有无先行词判断 1)where引导定语从句时，是关系副词，在定语从句中作地点状语，其前有一个表示地点的先行词。where引导的定语从句只能位于主句之后或句中，不能位于句首。 e.g. Is there a shop around where we can get some fruit? 2) where引导状语从句时，为从属连词，其前没有表示地点的名词。where引导的地点状语从句可位于主句之前或之后。 e.g. Where there is a will, there is a way. We should go where we are needed. 3.当先行词是表示原因的名词reason, 且关系词在从句中作原因状语，定语从句用why引导，且只能引导限制性定语从句。 e.g. That is the reason why he left in a hurry. The reason why he has had such a success is that he never gives up. 【注意】若代替先行词reason的关系词在定语从句中作状语，用why引导；作主语或宾语，则用that或which引导定语从句。 e.g. The reason that he told me yesterday is a lie. 【总结】关系代词与关系副词的选用 定语从句的关系词用关系代词还是关系副词可以用以下两种方式判断： 1.根据从句的谓语动词是否及物：是及物动词，后面若无宾语，用关系代词；是不及物动词则用关系副词。 2.根据先行词在从句中所作的成分：把先行词放入定语从句中，若作主语或宾语用关系代词；作状语则用关系副词。 e.g. This is the factory where he used to work. This is the factory (that/which) I visited last year. Exercise 1 1.As the smallest child of his family, Alex is always longing for the time __________ he should be able to be independent. 2. The exact