在英语学习中，物主代词是一个非常重要的语法知识点。它可以帮助我们表达某物或某人的所属关系。根据使用场景的不同，物主代词可以分为两类：形容词性物主代词和名词性物主代词。为了帮助大家更好地掌握这两类物主代词的用法，下面我们将通过一些练习题来巩固相关知识。
一、形容词性物主代词练习
形容词性物主代词通常用来修饰名词，表示“谁的”。它们不能单独使用，必须与名词一起出现。例如：“my book”（我的书），“his car”（他的车）。请完成以下填空题：
1. This is ________ (your) bag.
2. That is ________ (our) classroom.
3. These are ________ (their) pencils.
4. Is this ________ (his) pen?
5. The bike is ________ (her).
答案：
1. your
2. our
3. their
4. his
5. hers
二、名词性物主代词练习
名词性物主代词可以直接作主语、宾语或表语，不需要再搭配名词。例如：“This is mine”（这是我的），“That is yours”（那是你的）。请完成以下选择题：
1. This pen is ________. It belongs to me.
A. mine B. my C. your D. yours
2. The book is not ________. It’s hers.
A. your B. yours C. her D. hers
3. These are books, but they are not ________. They belong to you.
A. mine B. my C. yours D. your
4. Is this shirt ________ or ________?
A. yours; hers B. your; her C. mine; yours D. my; your
5. The car is not ________. It’s theirs.
A. yours B. your C. theirs D. their
答案：
1. A
2. B
3. A
4. A
5. A
三、综合练习
请根据句子的意思，选择正确的物主代词填空：
1. The red dress is ________, and the blue one is ________.
A. mine; yours B. my; your C. mine; your D. my; yours
2. These shoes are not ________. They’re ________.
A. your; ours B. yours; our C. yours; ours D. your; our
3. The keys are not ________. They’re ________.
A. hers; mine B. her; my C. hers; my D. her; mine
4. Is this coat ________ or ________?
A. yours; hers B. your; hers C. yours; her D. your; her
5. The bag is not ________. It’s ________.
A. yours; hers B. your; her C. yours; her D. your; hers
答案：
1. A
2. C
3. A
4. A
5. A
通过以上练习，相信你已经对形容词性物主代词和名词性物主代词有了更深刻的理解。在日常生活中，多加练习和运用，才能真正掌握这些知识点。继续加油吧！
