(共17张PPT)
Unit 5 Nelson Mandela
—a modern hero
定语从句Ⅱ（关系副词）
人教版 高一 第1册
Unit 5 Nelson Mandela
—a modern hero
定语从句Ⅱ（关系副词）
人教版新课标
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观察
阅读下列句子，体会蓝体部分的用法
情景导入
1．The time when I first met Nelson Mandela was a very difficult period of my life.
2．The school where I studied for only two years was three kilometres away.
定语从句(关系副词)
定语从句除了由关系代词引导外，还可由关系副词when，where，why引导。它们在从句中作状语。
1．关系副词when引导
定语从句
当定语从句所修饰的先行词是表示时间的名词，且在定语从句中充当时间状语时，用when引导，也可以用“介词＋which”来代替when。
I will never forget the day when/on which an earthquake struck Wenchuan，Sichuan Province.
我永远也不会忘记四川省汶川发生地震的那一天。
[名师点津]
定语从句
when是关系副词，在从句中只能作状语，而不能作宾语或主语。关系词如在从句中作主语或宾语要用关系代词which或that，作宾语时常常省略关系代词。
[名师点津]
定语从句
比较：
Do you remember the days(which/that)we spent together?
你还记得我们一起度过的那些日子吗？
(关系词在从句中作spent的宾语)
Do you remember the days(when/during which)we worked together?
你还记得我们一起工作的日子吗？
(关系词在从句中作状语)
2．关系副词where引导
定语从句
当定语从句所修饰的先行词是表示地点的名词，且在定语从句中充当地点状语时，用where引导定语从句，也可以用“介词＋which”来代替where。
This is the factory where/in which he works.
这是他工作的工厂。
2．关系副词where引导
定语从句
(1)若表示地点的先行词在从句中不作地点状语时，不可用where来引导定语从句，若作主语或宾语时，应用which或that来引导定语从句。
His father works in a factory which/that makes radio parts.
他爸爸在一家制造无线电零件的工厂工作。
(that/which在从句中作主语，是关系代词)
The school(which/that)we visited yesterday is newly built.
我们昨天参观的那所学校是新建的。
(关系代词which/that在从句中作宾语)
2．关系副词where引导
定语从句
(2)一些特殊名词后用where引导定语从句。如果定语从句前面的先行词是point，situation，condition，stage和case等，且在从句中作状语时，应用where来引导定语从句。
We have come to the point where we have to face such a problem.
我们已到了必须面对这样一个问题的地步了。
The country is in the situation where a war will break out at any time.
这个国家处在随时会爆发战争的局势中。
3．关系副词why引导
定语从句
(1)当先行词是reason时，可以用why引导限制性定语从句，why在定语从句中作原因状语。
Do you know the reason why he was late?
你知道他为什么迟到吗？
The reason why he told a lie is unclear.
他撒谎的原因还不清楚。
3．关系副词why引导
定语从句
(2)我们也可以用for which来代替why。
The reason why/for which you failed，I think，was that you had not followed your mother's advice.
我认为你失败的原因是你没有听你母亲的忠告。
[名师点津]
定语从句
若先行词reason在从句中不作状语，而作主语或宾语时，应用that或which来引导定语从句。
This is the reason(which/that)our teacher gave us for doing it.
这就是我们老师给我们的做此事的理由。(在从句中作宾语)
He gave me a reason that/which was reasonable.
他给了我一个合情合理的理由。(在从句中作主语)
巩固练习
Ⅰ.单句语法填空
1．He arrived in Beijing on the day_______I left.
2．The factory_______his father works is in the east of the city.
3．There are many reasons ______people like travelling.
when
where
why
Ⅱ.句型转换
1．This is the house. I lived in the house last year.
→This is the house last year.
2．I still remember the days. During the days we stayed in England.
→I still remember the days ．
where/in which I lived
when/during which we stayed in England
3．The reason is quite clear. He was absent from school for the reason.
→The reason is quite clear.
why/for which he was absent from school
亮点概述
1．关系副词when引导
2．关系副词where引导
3．关系副词why引导
定语从句
谢谢
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