在英语学习中，相互代词是一个非常重要的语法点，它能够帮助我们表达人与人之间或者事物之间的相互关系。为了更好地掌握这一知识点，我们设计了以下进阶练习题，供同学们巩固和提高。
一、选择题
1. Tom and Jerry are good friends. They always help ________.
A. themselves B. each other C. one another D. both
解析：这里描述的是两个人之间的互动，因此应该使用表示相互关系的代词。正确答案是 B. each other 或 C. one another，两者在此处可以互换使用。
2. The students in this class often share their books with ________.
A. they B. them C. their D. each other
解析：句子中需要填入一个代词来指代学生群体中的其他人，因此应选择表示相互关系的选项。正确答案为 D. each other。
3. John and Mary were arguing about who should do the dishes, but finally they decided to do it by ________.
A. themselves B. each other C. one another D. together
解析：此题考察的是对反身代词和相互代词的区别理解。“themselves”强调各自完成动作，“each other/one another”则强调两人之间的相互合作。根据句意，正确答案为 A. themselves。
4. During the game, players must pass the ball to ________.
A. them B. themselves C. each other D. theirs
解析：在游戏中传球的动作显然是发生在团队成员之间，所以需要用相互代词来表示这种关系。正确答案为 C. each other。
5. Sarah and Lisa are sisters. They love to dress alike and often wear clothes that look exactly like ________.
A. her B. hers C. they D. each other
解析：此题考查名词性物主代词“hers”的用法，同时涉及相互关系的理解。“hers”在这里指的是Sarah和Lisa各自的衣物风格相似。正确答案为 B. hers。
二、改错题
6. The teacher asked the students to work out problems on their own instead of helping each other.
改正后的句子：The teacher asked the students to work out problems on their own instead of helping themselves.
解析：原句中“helping each other”虽然符合语境，但若强调个人独立解决问题，则应改为“helping themselves”。
7. My parents always encourage me to compete against one another.
改正后的句子：My parents always encourage me to compete against myself.
解析：此处“one another”用于描述两人或多人间的竞争关系，而题目意指与自身竞争，故应替换为“myself”。
8. We need to cooperate with each other if we want to succeed.
改正后的句子：We need to cooperate with ourselves if we want to succeed.
解析：此题旨在测试考生对于“cooperate with”的搭配是否准确。当强调共同努力时，通常会使用“with each other”，但如果侧重于自我提升，则可考虑“with ourselves”。
9. Every student has to finish his homework by himself or herself.
改正后的句子：Every student has to finish his/her homework by himself/herself.
解析：原句试图通过复数形式避免性别歧义，但实际上仍需明确指出单数主语的情况。修改后更清晰地表达了个体完成任务的概念。
10. The neighbors quarrelled so much that they stopped speaking to each other entirely.
改正后的句子：The neighbors quarrelled so much that they stopped speaking to themselves entirely.
解析：原句正确反映了邻里间因争吵而不再交流的状态；然而修改版则暗示双方完全忽略了对方的存在，这与实际情境不符。
以上就是关于相互代词的一些典型练习题及其详细解答。希望大家能够通过这些题目加深对该知识点的理解，并灵活运用到日常交流当中去！
