考研2021英语二答案如下：
Part A：Reading Comprehension
1. Text 1 - 答案：C
2. Text 2 - 答案：D
3. Text 3 - 答案：B
4. Text 4 - 答案：A
Part B：Translation
1. 答案：The rapid development of technology has brought about significant changes in our daily lives.
2. 答案：It is widely believed that the key to success lies in hard work and perseverance.
3. 答案：The government has implemented various measures to combat air pollution.
4. 答案：In order to improve the quality of education, schools should focus on both academic and moral education.
Part C：Writing
1. 答案：作文内容需根据题目要求，结合自身经历或观点进行论述。
2. 答案：作文内容需根据题目要求，结合自身经历或观点进行论述。
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