在英语语法中，定语从句是一种重要的句式结构，它用于修饰名词或代词，使其描述更加具体和清晰。通过定语从句的学习与练习，我们可以更好地掌握语言表达的准确性与丰富性。以下是一些精选的定语从句专项练习题，帮助大家巩固相关知识点。
练习题
1. The book ________ you lent me yesterday is very interesting.
A) who
B) which
C) whose
D) whom
2. The girl ________ is standing under the tree is my sister.
A) whom
B) who
C) whose
D) which
3. Do you know the man ________ spoke at the meeting?
A) who
B) whom
C) whose
D) which
4. The house ________ windows face south is expensive.
A) that
B) whose
C) which
D) where
5. This is the factory ________ I worked five years ago.
A) where
B) that
C) which
D) when
6. The dictionary ________ he lost last week has been found.
A) who
B) which
C) whose
D) what
7. He lives in the room ________ window is broken.
A) whose
B) that
C) which
D) where
8. The reason ________ she gave for being late was not convincing.
A) why
B) that
C) which
D) what
9. The boy ________ father is a doctor studies hard.
A) who
B) whose
C) which
D) whom
10. This is the best film ________ I have ever seen.
A) which
B) that
C) what
D) whose
答案解析
1. B) "which" 引导定语从句，修饰先行词 "book"。
2. B) "who" 引导定语从句，修饰人 "the girl"。
3. A) "who" 引导定语从句，修饰人 "the man"。
4. B) "whose" 表示所属关系，修饰 "windows"。
5. A) "where" 引导地点状语从句，修饰 "factory"。
6. B) "which" 引导定语从句，修饰物 "dictionary"。
7. A) "whose" 表示所属关系，修饰 "window"。
8. A) "why" 引导原因状语从句，修饰 "reason"。
9. B) "whose" 表示所属关系，修饰 "father"。
10. B) "that" 引导定语从句，修饰物 "film"。
以上练习涵盖了定语从句的基本用法，包括关系代词（who, whom, whose, which, that）和关系副词（where, when）。希望这些题目能够帮助你加深对定语从句的理解，并提升你的实际运用能力！