【定语从句练习题】定语从句是英语语法中的一个重要知识点，它在句子中用来修饰名词或代词，使句子表达更加准确和丰富。掌握定语从句的用法，不仅能提高语言理解能力，还能增强写作和口语表达的准确性。
以下是一些常见的定语从句练习题及其答案总结，帮助大家更好地理解和掌握这一语法点。
一、练习题汇总
| 题号 | 题目 | 答案 |
| 1 | The book ___ I bought yesterday is very interesting. | that / which |
| 2 | The man ___ is standing over there is my uncle. | who / that |
| 3 | The city ___ we visited last summer was beautiful. | that / which |
| 4 | The girl ___ won the prize is my sister. | who / that |
| 5 | The house ___ I live in is very old. | where |
| 6 | The reason ___ he gave was not convincing. | why |
| 7 | The person ___ you are waiting for has arrived. | who / that |
| 8 | The movie ___ we watched last night was amazing. | that / which |
| 9 | The time ___ we met was unforgettable. | when |
| 10 | The person ___ helped me is a kind stranger. | who / that |
二、答案解析
1. that / which
本句中，“I bought yesterday”是修饰“the book”的定语从句，关系代词可以使用“that”或“which”，但“that”更常见于限制性定语从句。
2. who / that
“The man”是人，因此用“who”或“that”引导定语从句，表示“那个站在那边的人”。
3. that / which
“we visited last summer”修饰“the city”，这里可以用“that”或“which”，但“that”更自然。
4. who / that
“The girl”是人，所以用“who”或“that”引导定语从句。
5. where
“I live in”修饰“the house”，因为“house”是一个地点，所以用“where”引导定语从句。
6. why
“he gave”是解释“reason”的内容，因此用“why”引导定语从句。
7. who / that
“you are waiting for”修饰“the person”，表示“你等的人”，可用“who”或“that”。
8. that / which
“we watched last night”修饰“the movie”，可用“that”或“which”。
9. when
“we met”是时间状语，修饰“the time”，因此用“when”。
10. who / that
“helped me”修饰“the person”，表示“帮助我的人”，可用“who”或“that”。
三、小结
定语从句的关键在于正确选择关系代词（who, whom, that, which, whose）或关系副词（when, where, why）。通常：
- 修饰人时，用 who / that
- 修饰物时，用 which / that
- 修饰时间时，用 when
- 修饰地点时，用 where
- 修饰原因时，用 why
通过多做练习题并结合语境分析，可以更熟练地掌握定语从句的使用方法。希望以上练习题及答案能对你的学习有所帮助！
