【定语从句例句】定语从句是英语语法中的一个重要部分，用于修饰名词或代词，使句子更加具体和清晰。定语从句通常由关系代词（如 who, whom, whose, which, that）或关系副词（如 when, where, why）引导。下面是对常见定语从句的总结，并附上例句表格，帮助学习者更好地理解和掌握。
一、定语从句概述
定语从句的作用是修饰先行词，即被从句所描述的名词或代词。在句子中，定语从句紧跟在先行词之后，通过关系词与主句连接。定语从句可以分为限制性定语从句和非限制性定语从句两种类型。
- 限制性定语从句：对先行词起限定作用，不能省略。
- 非限制性定语从句：对先行词进行补充说明，用逗号隔开，可省略。
二、常用关系词及用法
| 关系词 | 用法说明 | 例子 |
| who | 指人，作主语或宾语 | The man who is talking to Mary is my teacher. |
| whom | 指人，作宾语 | The girl whom you met yesterday is my sister. |
| whose | 表示所属关系 | The boy whose bag was stolen is in the hospital. |
| which | 指物，作主语或宾语 | The book which I bought yesterday is very interesting. |
| that | 指人或物，作主语或宾语 | The car that is parked outside is mine. |
| when | 表时间，作状语 | I still remember the day when we first met. |
| where | 表地点，作状语 | This is the house where I grew up. |
| why | 表原因，作状语 | That’s the reason why she left. |
三、定语从句例句汇总
| 句子结构 | 例句 | 说明 |
| 主语+定语从句 | The student who got the highest score is from Class 3. | “who got the highest score”修饰“student”。 |
| 宾语+定语从句 | I know the person who called me last night. | “who called me last night”修饰“person”。 |
| 物作主语 | The computer which broke down is not working. | “which broke down”修饰“computer”。 |
| 人作宾语 | The teacher whom we respect is very kind. | “whom we respect”修饰“teacher”。 |
| 非限制性定语从句 | My brother, who lives in Beijing, is a doctor. | “who lives in Beijing”是对“brother”的补充说明。 |
| 时间状语从句 | I will never forget the time when I studied abroad. | “when I studied abroad”修饰“time”。 |
| 地点状语从句 | This is the place where we had our first date. | “where we had our first date”修饰“place”。 |
| 原因状语从句 | That’s the reason why he didn’t come. | “why he didn’t come”修饰“reason”。 |
四、总结
定语从句在英语中广泛应用，能够使语言表达更加丰富和准确。掌握不同关系词的使用方法以及从句的结构，有助于提高阅读和写作能力。通过不断练习和积累例句，可以逐步提升对定语从句的理解和运用能力。
希望以上内容能帮助你更好地掌握定语从句的相关知识。
