3. Tom is the only person 　　　　　I can depend on.

　　　 A. that　　　　 B. which　　 　　 C. who　

2. Who was the man _____ spoke to you just now?

A.　 who 　　 　B. whom　　 　 C. that 　　

3. why指原因，在定语从句中做原因状语

　 eg. 　Please tell me the reason why you are late.

　注意：关系副词引导的从句可以由“介词+关系代词”引导的从句替换

　(1) The reason why/ for which he refused the invitation is not clear,

　(2) From the year when/in which he was going to school he began to know what he wanted when he grew up.

(3) Great changes have taken place in the city in which./where I was born.

判断关系代词与关系副词：

　方法一： 用关系代词，还是关系副词完全取决于从句中的谓语动词。不及物动词后面无宾语，就必须要求用关系副词或者是介词加关系代词；而及物动词后接宾语，则要求用关系代词。例如：　

　This is the mountain village where I stayed last year.　

　I'll never forget the days when I worked together with you.　

　(错) This is the mountain village where I visited last year.　

　(错) I will never forget the days when I spent in the countryside.　

　(对) This is the mountain village (which) I visited last year.　

　(对) I'll never forget the days (which) I spent in the countryside.　

　习惯上总把表地点或时间的名词与关系副词 where, when联系在一起。此两题错在关系词的误用上。

　方法二： 准确判断先行词在定语从句中的成分(主、谓、宾、定、状)，也能正确选择出关系代词/关系副词。

例1. Is this museum ___ you visited a few days ago?　

　　　 　A. where　B. that　C. on which

　例2. Is this the museum ____ the exhibition was held?

A.　 where　B. that　C. 　on which

　关系词的选择依据在从句中所做的成分，先行词在从句中做主、定、宾语时，选择关系代词 (who, whom, that, which, whose)；

　先行词在从句中做状语时，应选择关系副词 ( where 地点状语，when 时间状语，why 原因状语) 。

　　　 Exercises:

1. The man ____ is standing there is my father.

　　　 A. who 　 　　B. whom　 　 C. which

2. where指地点，在定语从句中做地点状语

　　 eg. Shanghai is the city where I was born.

1. when指时间，在定语从句中做时间状语

　 eg. I still remember the day when I first came to the school.

3. whose是关系代词，修饰名词作定语，相当于所修饰成分的前置所有格。它引导的从句可以修饰人和物，当它引导的从句修饰物体时，可以与 of which 调换，表达的意思一样。

关系副词引导的定语从句：

2. when引导定语从句表示时间

　关系副词=介词+关系代词

　why=for which

　where=in which

　when=during which

　whose=of which

1. where是关系副词，用来表示地点的定语从句

5. whose通常指人，也可指物，在定语从句中做定语

　 eg. 　He has a friend whose father is a doctor.

　whose指物时，常用以下结构来代替：

　 eg. (1). The classroom whose door is broken will soon be repaired.

　　　 The classroom the door of which is broken will soon be repaired.

　　　 (2) Do you like the book whose color is yellow?

　　 Do you like the book the color of which is yellow?

3. 在带有下列词的句子中用that而不用which，

(1)当先行词是anything, everything, nothing , none等不定代词时；

(2)由every, any, all, some, no, little, few, much等修饰时等，这时的that常省略；

(3)先行词前有序数词或形容词最高级修饰时；

(4)先行词是序数词或最高级时；

(5)先行词中既有人又有物时；

(6)句中前面有which时。