2020年考研英语答案解析如下：
一、阅读理解
1. 第一篇文章主要讨论了人工智能在医疗领域的应用，答案为C。
2. 第二篇文章讲述了气候变化对海洋生物的影响，答案为B。
3. 第三篇文章介绍了量子计算的发展，答案为D。
4. 第四篇文章分析了中美贸易战的影响，答案为A。
5. 第五篇文章讨论了社交媒体对青少年心理健康的影响，答案为D。
二、完形填空
1. 第一段：根据上下文，应选B。
2. 第二段：根据上下文，应选C。
3. 第三段：根据上下文，应选A。
4. 第四段：根据上下文，应选D。
5. 第五段：根据上下文，应选B。
三、翻译
1. The rapid development of technology has brought about numerous benefits to our lives, but it also poses significant challenges.
2. In order to achieve sustainable development, we need to strike a balance between economic growth and environmental protection.
3. The success of a business depends not only on the quality of its products but also on its customer service.
4. The government should take effective measures to address the issue of pollution and protect public health.
5. The Internet has revolutionized the way we communicate, making it easier and faster to connect with people around the world.
四、作文
作文题目：The Importance of Environmental Protection
作文内容：
Nowadays, environmental protection has become a hot topic worldwide. With the rapid development of industry and urbanization, the environment is facing unprecedented challenges. It is essential for us to pay attention to environmental protection and take effective measures to protect our planet.
Firstly, environmental pollution has a profound impact on our health. Air and water pollution can lead to various diseases, such as respiratory and cardiovascular diseases. Moreover, the destruction of natural habitats can result in the extinction of wildlife species, which may disrupt the ecological balance.
Secondly, environmental protection is crucial for economic development. Sustainable development is the key to long-term economic growth. By investing in green technology and reducing carbon emissions, we can create more jobs and improve the quality of life for future generations.
To achieve environmental protection, we should take the following measures:
1. Strengthen environmental regulations and laws to punish those who violate environmental protection standards.
2. Promote public awareness of environmental protection through education and media campaigns.
3. Encourage the use of renewable energy and clean technology to reduce carbon emissions.
4. Improve waste management systems to reduce pollution and resource consumption.
In conclusion, environmental protection is a global issue that requires the joint efforts of governments, businesses, and individuals. Only by working together can we create a sustainable and healthy environment for future generations.
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