在初中英语学习中，人称代词和物主代词是基础且重要的知识点。为了帮助同学们更好地掌握这一部分内容，以下特整理了一份专项练习题，涵盖常见的人称代词和物主代词用法，并附有详细答案解析。
一、选择题
1. ______ is my friend.
A. HeB. SheC. ItD. They
2. These books are ________.
A. mineB. hisC. hersD. ours
3. My brother likes playing football, but ________ doesn't like basketball.
A. heB. sheC. itD. they
4. Look! That cat is ________.
A. herB. yourC. ourD. its
5. The pencil isn't ________. It's ________.
A. mine; yoursB. my; yourC. me; youD. I; you
二、填空题
6. This is ________ (I) book.
7. Those are ________ (we) pens.
8. Is this pen ________ (you)?
9. ________ (she) name is Lily.
10. These books are not ________ (our). They are ________ (they).
三、改写句子
11. His name is Mike. （改为同义句）
________ name is Mike.
12. These are their rulers. （改为否定句）
These ________ ________ rulers.
13. This is my dictionary. （改为一般疑问句并作肯定回答）
- ________ this ________ dictionary?
- Yes, ________ ________.
14. Her father works in a factory. （改为反意疑问句）
Her father works in a factory, ________ ________?
15. We have a new classroom. （对画线部分提问）
________ ________ you have?
四、综合题
16. 根据上下文填入适当的人称代词或物主代词。
- Excuse me, is this ________ (you) bag?
- No, it's not ________. It's ________ (he).
17. 请用正确的形式完成下列对话。
A: Whose ruler is this?
B: It's ________ (I).
18. 写出以下短语的正确形式：
- 我的书包：________
- 她的铅笔盒：________
- 他们的教室：________
答案解析
1. A2. D3. A4. D5. A
6. my7. our8. yours9. Her10. ours; theirs
11. His12. are; not13. Is; your; it; is14. doesn't; he15. What; do
16. your; mine; his17. mine18. my schoolbag; her pencil case; their classroom
通过以上练习，相信同学们能够更加熟练地运用人称代词和物主代词。这些知识点看似简单，但在实际应用中却非常重要，希望大家勤加练习，为后续的英语学习打下坚实的基础！
