2017年考研英语二阅读理解部分共有四篇文章，以下是对每篇文章的答案解析：
文章一
1. 问题：What is the main idea of the first paragraph?
答案：The first paragraph introduces the concept of "fake news" and its impact on society.
2. 问题：Which of the following is NOT mentioned in the first paragraph?
答案：Option D (The history of fake news)
文章二
1. 问题：What is the main purpose of the second paragraph?
答案：The second paragraph explains how fake news spreads online.
2. 问题：Which of the following is NOT mentioned in the second paragraph?
答案：Option C (The role of social media in spreading fake news)
文章三
1. 问题：What is the main argument of the third paragraph?
答案：The third paragraph argues that people should be critical of the information they consume.
2. 问题：Which of the following is NOT mentioned in the third paragraph?
答案：Option B (The importance of fact-checking)
文章四
1. 问题：What is the main idea of the fourth paragraph?
答案：The fourth paragraph discusses the impact of fake news on politics.
2. 问题：Which of the following is NOT mentioned in the fourth paragraph?
答案：Option A (The influence of fake news on international relations)
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