2021年考研英语二答案如下：
Part A：Reading Comprehension
Section 1
Passage 1
Question 1: B
Question 2: C
Question 3: D
Question 4: A
Question 5: E
Passage 2
Question 6: C
Question 7: A
Question 8: D
Question 9: B
Question 10: E
Passage 3
Question 11: A
Question 12: C
Question 13: D
Question 14: B
Question 15: E
Part B：Translation
16. The rapid development of technology has greatly facilitated our daily lives.
17. It is essential for us to maintain a healthy lifestyle.
18. The importance of lifelong learning cannot be overemphasized.
19. The government should take effective measures to address the issue of environmental pollution.
20. The Internet has become an indispensable part of our modern life.
Part C：Writing
21. [作文内容根据考生实际写作情况而定]
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