Unit 5 突破 语法大冲关 教材讲解 2021-2022学年 外研版（2019）高中英语必修第一册

定语从句(Ⅱ)一、关系副词引导的定语从句1．when引导的定语从句[观察典例]I can not forget the day when I first saw you.The old man still remembers the time when he first travelled by plane.Please tell us the date when you were born.[归纳用法]when 指时间，在从句中作时间状语。先行词通常是time，day，week，year 等。2．where引导的定语从句[观察典例]This is the house where they lived a week ago.Japan is one of the few countries where people drive on the left.Is this the place where it happened?[归纳用法]where 指地点，在从句中作地点状语。先行词通常是place，street，house，city，country 以及一些抽象意义的名词，如 point，case，position，condition，situation等。3．why引导的定语从句[观察典例]The reason why I don't trust him is that he often tells lies.Can you explain the reason why you don't help him?[归纳用法]why指原因或理由，在从句中作原因状语。先行词是reason。[名师点津]这三个关系副词在意义上都相当于“介词＋which”结构：①when＝on (in，at，during ...)which②where＝in (at，on ...)which③why＝for which[即学即练1]　用适当的关系副词填空①This is the reason why I didn't come here.②The accident has reached the point where both their parents are to be called in.③You would get into a situation where you have to decide immediately.④There was a time when the businessman lost heart.⑤Gone are the days when you could leave your door unlocked at night.二、关系代词与关系副词的选用[观察典例]I still remember the day which/that we spent together in the city.Do you remember the days when we chatted with each other?I don't know the reason why he didn't turn to his good friend for help yesterday.I won't listen to the reason that/which  you have given us.[归纳用法]当先行词是表示时间、地点、原因的名词时，如果定语从句缺少主语或宾语，应用关系代词which或that；缺少状语时，才能用关系副词when 、where或why。[即学即练2]　用适当的关系词填空①I don't believe the reason that/which he gave me for his being late.②That was the reason  why he was late for the meeting.③This is the house which/that was built by my grandfather forty years ago.④Keep the book in a place where you can find it easily.⑤Do you remember the day when you joined our club?Ⅰ.单句语法填空1．Self­driving is an area where China and the rest of the world are on the same starting line.2．But it was also a time when there were many great philosophers.3．Do you know the reason why he was late yesterday?4．There are times when personal feelings can't be allowed to intrude.5．The main reason why he lost his job was that he had had an arguement with the boss.6．Do you still remember the day when we met on the train for the first time?7．She's got herself into a dangerous situation where she's likely to lose her life.8．Is this the museum where the exhibition was held?9．I have forgotten the date which/that you told me.10．That is the reason which/that I want to know.Ⅱ.完成句子1．她告诉记者她在被埋的日子里只能依靠很少的食物生存。She told the reporter that she had to survive on little food during the days when she was buried．2．我是来向你解释我缺席你生日派对的原因。I have come to explain to you the reason why I was absent from your birthday party.3．有一段时间，我厌倦学英语并且不喜欢说英语。There was a time when I was tired of learning English and disliked to speak English.4．他们已经到了必须分手的地步。They have reached the point where they have to separate with each other.5．你能告诉我他工作的办公室吗？Can you tell me the office where he works?