定语从句完整解析
定语从句则是一个有着完整主谓结构的句子作定语。它总是置于被修饰词之后。例：Jim, who is my best friend, is a person of great determination.
被修饰的名词或代词叫做先行词timeout was reached, 引导定语从句的关联词称为关系词，关系词有关系代词和关系副词。关系代词有that, which, who, whom, whose, as等；关系副词有where, when, why等。关系词常有3个作用：
  ①连接作用，引导定语从句。
  ②在定语从句中代替主句中的先行词，或主句中的一部分或整个主句。
  ③在定语从句中充当一句子成分。
注：关系代词在从句中作主语，宾语，表语，定语等，关系副词在从句中作地点状语，时间状语，原因状语等。
Exercises:将下列每组中的两个简单句合并成含有定语从句的复合句。
1.The student is from American. He sits next to me.
2.I can’t remember the name of the person. I gave the money to him.
3.The book is very interesting. I bought the book yesterday.
4.The factory is far away from here. The factory makes computers.
5.I’ll never forget the village. It stands at the foot of the hill.
6.The girl is our monitor. The teacher often praises her.
7.I like the students. The students are working hard.
8.I still remember the days. We spent the days together.
9.The teacher praised the boys in class. Their work was well done.
10.I'd like to have a room. Its window faces south.
11.The people were friendly. I rented their houses.
12.The prize will go to the writer. His story shows the most imagination.
13.I still remember the day. My brother joined the army on the day.
14.We are living in the information age.  Many things are done on computer in the age.
15.This is the hospital. I was born in the hospital.
16.This is the factory.  He worked in the factory last year.
17.This Monday will be an unforgettable day. We’ll graduate on that day.
18.April Fool’s Day is a special day. On that day you should play a joke on someone.
19.The city was beautiful. We spent our vacation there.
20.This is a beautiful town. I want to visit it someday.
21.My roommates always play music at the dormitory. That really made me angry.
22.This is the largest clock in the world. Its minute hand is six metres long.
23.They rushed over to help the man. His car had broken down.
24.He failed in the exam. It made his parents angry.
25.His girlfriend likes dancing with other guys. It really drives him crazy.
26.The number of smokers has dropped by 17%. It is reported.
27.Tom drinks a lot every day. His wife doesn’t like that at all.
28.China Daily attracts a worldwide readership. It shows that people all over the world want to learn about China.
29.There are forty students in the classroom. Half of them are working hard at a problem in mathematics.
30.Mo Yan was awarded the Nobel Prize for Literature in 2012. It made one of the Chinese people ‘s long-held dreams come true.
31.English is shared by several cultures. Each of the culture uses it differently.
32.I wish to thank Professor Smith. I would not have made such great progress.
33.Maria has written two novels. Both of them have been made into television series.
34.In our class there are 46 students. Half of them wear glasses.
35.The manager pays attention to improving our working conditions. I work in his company.
36.Some experts think that reading is a very important skill. School education depends on it.
注：“介词+关系代词”引导的定语从句(关系代词主要有 which, whom, whose)
关于介词的选择是一个难点，现可以总结如下：
1.看从句的动词或形容词：所用介词要与定语从句中的动词或形容词构成固定搭配。
Ex: 1). The girl               you work is his sister.
  2). He is the man               I think you can depend.
  3). This is the book               I am interested.
  4). The goals             he had fought all his life wasn’t important to him.
  5). He gave me some books             I am not familiar.
2.看先行词选介词
  1）I will never forget the day             I graduated from university.
  2) This is an effective means               you can improve your English.
3) The speed             the car runs depends on the road condition.
3. 根据意思也可用复杂介词，如 by means of ,as a result of, in front of, at the back of ,all of , most of 等，如：
     ⑴The instrument by means of which the temperature is measured is called thermomet
er. 用来测量温度的仪器叫温度计。
    ⑵I was given three books on cooking, the first             I really enjoyed.
注：关系代词的选取
     在“介词 + 关系代词”引导的定语从句中，如果关系代词指代事物就用 which; 如果指代人则用 whom; 若表示“……的”则用 whose. 如：
1.This is the classroom in which we studied last year.
2.There are sixty students in our class, twenty of whom are girls.
3.This is Lucy, with whose help I have made great progress in English.
翻译：
1.我昨天买了一本书， 该书的作者是一位有名的教授。（professor）
2.你昨天借给我的那本书很有趣。
3.和我在一起工作的那个女孩已经结婚两年了。