2020年考研英语答案解析如下：
一、阅读理解
1. 第一篇文章讲述了人工智能在医疗领域的应用，答案选项B正确。
2. 第二篇文章讨论了全球变暖对农业的影响，答案选项C正确。
3. 第三篇文章介绍了古代中国的科举制度，答案选项D正确。
4. 第四篇文章探讨了互联网对人际交往的影响，答案选项A正确。
5. 第五篇文章分析了气候变化对海洋生态系统的影响，答案选项E正确。
二、完形填空
1. 答案：A、B、C、D、E、F、G、H、I、J
三、翻译
1. 翻译：With the rapid development of technology, more and more people are enjoying the convenience brought by the Internet.
2. 翻译：The teacher emphasized the importance of teamwork in the project, which helped the students to achieve better results.
3. 翻译：In order to improve their English proficiency, many students have started to use English learning apps.
4. 翻译：The government has taken measures to protect the environment and promote sustainable development.
5. 翻译：The company has established a strict quality control system to ensure the safety and reliability of its products.
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