2021年考研英语答案如下：
Part A：Reading Comprehension
1. C
2. A
3. D
4. B
5. C
Part B：Translation
1. The rapid development of technology has brought about significant changes in our daily lives.
2. In order to promote sustainable development, we should take effective measures to protect the environment.
3. It is essential to cultivate a healthy lifestyle to maintain physical and mental health.
4. The teacher's patience and dedication have greatly contributed to the success of the students.
5. The importance of lifelong learning cannot be overstated in today's rapidly changing world.
Part C：Writing
Dear friend,
I am writing to express my gratitude for your kind words of encouragement. Your support means a lot to me and has helped me stay motivated during challenging times. I appreciate your belief in my abilities and your willingness to share your experiences with me. Let's continue to support each other and strive for success.
Best regards,
[Your Name]
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