课程内容
高中英语《在外国旅游 Unit 5 Travelling abroad(Part 3)》（选修7）
在定语从句中，当先行词是表示时间、地点或原因的名词时，就要分别用关系副词when,where,why来引导，在从句作状语。关系副词when,where,why的含义相当于“几次+which"结构，因此常常可以和”介词+which"结构交替使用。
1.I remembered the day when(on which)I first came to the school.
2.Beijing is the place where(in which)I was born.
3.Is this the reason why (for which) he refused to help you?
关系代词VS关系副词
选择关系代词，还是关系副词首先要判断先行词在定语从句中充当的成分:关系代词一般充当主语、宾语（whose充当定语）；而关系副词一般充当状语。
1.This is the factory where I stayed last year.
2.This is the factory which I visited last year.
3.I'll never forget the days when I worked with you in the city.
4.I'll never forget the days that I spent with you in the city.
Choose the best answer
1.Is this the museum (B) you visited a few days ago?
A where   B that   C on which   D the one
2.Is this museum (D) you visited a few days ago?
A where  B that  C on which   D the one
Fill in the blanks
1.The reason (that/which)he gave us is enough.
2.The reason (why)he was late is unknown.
3.We must learn to act in ways(that/which)do not harm other living things.
4.I don't like the way(that/in which)he talks.
5.This is the way (that/which)he thought of to solve the problem.
介词+关系代词
1.根据介词和定语从句中谓语动词的习惯搭配。
Who is the man with whom you just shook hands?
In the dark street there wasn't a single person (D)she could turn for help.
A that   B who   C from whom   D to whom
解析：答案为D。介词to和定语从句中的turn构成固定搭配turn to sb for help,意为“向某人求助”
2.根据定语从句意思的需要，此时不但要注意其前的搭配也要注意其后的搭配。
He had a bad cold,because of which he didn't attend the meeting.
In the office I never seem to have time until after 5:30pm (D)many people have got home.
A whose time   B that   C on which   D by which
介词：答案为D。根据句意“到下午5:30时，许多人已经到家了”，且定语从句又用了完成时，故应用介词by.
注意
1）介词后面的关系词不能省略。
2）that 前不能有介词。
3）某些在从句中充当时间，地点或原因状语的“介词+关系词”结构可以同关系副词when,where和why互换。
This is the house in which I lived two years ago.
This is the house where I lived two years ago.
4.whose 可转换为“of+关系代词”型
They live in a house,whose door opens to the south.
They lived in a house,of which the door opens to the south.
They lived in a house,the door of which open to the south.
Fill in the blanks with proper prepositions
1.The sun gives us heat and light,(without) which we can't live.
2.The student (about)whom we were talking is the best student in our class.
3.I'll never forget the day(on) which she said good-bye to me.
4.Who can give me the reason (for) which he hasn't turned up yet?
5.In the dark street,there wasn't a single person (to whom)she could turn for help.
6.He paid the boy $10 for washing the windows,(most of which)hadn't been cleaned for at least a year.
The Non-Restrictive Attributive Clause
非限制性定语从句
1.限制性定语从句和非限制性定语从句：
限制性定语从句：所谓限制性定语从句就是先行词在意义上不可缺少的定语，如果去掉，主句就会失去意义或意义不完整。这种从句和先行词的关系十分密切，写时不用逗号和主句分开。
I was the only person in my office who was invited.
我是我们办公室唯一被邀请的人。
（如果把从句去掉，整个句子的含义就变了）
非限制性定语从句：非限制性定语从句和主句的关系并不十分密切，只是对先行词做些附加说明，如果去掉，主句的意思仍然清楚。这种从句和主句之间往往有逗号隔开。在讲话时语调上须停顿，一般不用that引导。
His dog,which was then very old,became ill and died.
他的狗当时很老了，生病后就死了。
（去掉从句，主句的意义仍然完整；他的狗生病死了）
2)Yesterday I met Li Lei,who seemed to be very busy.
昨天我碰到李雷了，他好像很忙。
（去掉从句，意义仍然完整，昨天我碰上李雷的）
2.非限制性定语从句中的一些问题
a.非限制性定语从句中，指物时，用which而不用that.
1)Football,which is a very interesting game,is played all over the wrold.
2)All the books there,which have beautiful pictures in them,were written by him.
b.指人时主格用who,宾格whom，物主格whose(也可指物）
1）Miss Howe,whom you met in the library,is our new teacher.
2)The Arabs,who are famous for their horses and camels,use these animals for work and in sports.
3)Li Ming,whose mother has been ill for two days,is absent from school today.
c.另外关系副词when(指时间），where（指地点）也可以引导非限制性定语从句（注意关系副词why不能引导非限制性定语从句）；why不引导定语从句。
1)He lives in the city,where there is a high tower.
2)The People's Republic of China was founded in 1949,when he was born.
d.介词加关系代词也可以引导非限定性定语从句
1)Wu Dong,with whom I went to see the film,enjoyed it very much.
2)Her bag,in which she put all her books,has not been found.
3)The story about the Long March,of which this is an example,are well written.
3.as,which非限定性定语从句
由as,which引导的非限定性定语从句，as和which可代整个主句，相当于and this或and that.as一般放在句首，which 在句中。
As we know,smoking is harmful to one's health.
The sun heats the earth,which is very important to us.
as引导的限制性定语从句
as在定语从句中作主语、宾语、或表语。as常用于the same...as,such...as,as...as和so...as结构中。as引导的定语从句常采用省略形式。
I have never seen such a lazy man as you (are).
我从来没有见过像你这样懒的人。（作表语）
Homework
Find more information about the attributive clause and remember the rules.