在2021年英语二考研中，考生们普遍反映试题难度适中，涵盖了词汇、语法、阅读理解、翻译和写作等多个方面。以下是对部分题目的答案解析：
1. 单项选择题
答案：C
解析：根据上下文语境，此处应选择表示“尽管”的连词。
2. 完形填空题
答案：B
解析：根据前后文逻辑关系，此处应选择表示转折关系的连词。
3. 阅读理解
答案：C
解析：通过仔细阅读文章，可以得知作者的观点是C选项。
4. 翻译
答案：尽管面临困难，他们仍然坚持不懈地追求自己的梦想。
解析：根据原文内容，此处应翻译为“Although faced with difficulties, they still pursue their dreams with unwavering determination.”
5. 写作
答案：以下是一篇考研英语二作文范文：
Dear friend,
I am writing to share with you some of my thoughts on the importance of self-discipline. In my opinion, self-discipline is essential for personal growth and success.
Firstly, self-discipline helps us to set goals and work towards them. Without self-discipline, we are likely to be easily distracted and fail to achieve our objectives. Secondly, self-discipline enables us to overcome challenges and obstacles. In the face of difficulties, we need to stay focused and persistent. Finally, self-discipline promotes a healthy lifestyle. By maintaining discipline in our daily routines, we can lead a balanced and fulfilling life.
In conclusion, self-discipline is a crucial factor in achieving our dreams and goals. It is important for us to cultivate self-discipline and make it a part of our lives.
Best regards,
[Your Name]
【考研刷题通】——考研刷题小程序，助你轻松备考！政治、英语、数学等全部考研科目，海量真题、模拟题，让你随时随地刷题，提高备考效率！快来关注我们，开启你的考研之路！