2020年12月四级英语真题及答案解析如下：
一、听力部分
听力部分共30题，分为短篇新闻、长对话和听力篇章三个部分。考生需注意听力材料的真实性、生活化、时代性，以及问题设置的多样性。
短篇新闻部分共有7题，内容涉及国际新闻、社会热点等。考生需注意新闻中的关键信息，如时间、地点、人物、事件等。
长对话部分共有8题，内容涉及日常生活、工作学习等场景。考生需注意对话双方的观点、态度、意图等。
听力篇章部分共有15题，内容涉及故事、讲话、叙述等。考生需注意篇章的主题、结构、发展脉络等。
二、阅读理解部分
阅读理解部分共30题，分为词汇理解、长篇阅读和仔细阅读三个部分。
词汇理解部分共有10题，主要考查考生对单词的词义、用法和搭配的掌握。考生需注意词汇的语境，正确理解其含义。
长篇阅读部分共有10题，考生需在15分钟内阅读一篇长篇文章，并回答相关问题。考生需注意把握文章的主旨、结构和发展脉络，提高阅读速度和理解能力。
仔细阅读部分共有10题，考生需在30分钟内阅读4篇文章，并回答相关问题。考生需注意文章的细节、逻辑和观点，提高答题准确率。
三、翻译部分
翻译部分共1题，要求考生将一段100-120个汉字的段落翻译成英语。考生需注意中英文表达的差异，准确传达原文意思。
四、写作部分
写作部分共1题，要求考生在30分钟内写一篇100-120个单词的短文。考生需注意文章的结构、逻辑和语言表达，提高写作水平。
以下是部分题目的答案解析：
1. 短篇新闻答案解析：
（1）What does the news report say about the new virus?
答：The news report says that a new virus has been discovered in China.
（2）How many people have been infected so far?
答：So far, 50 people have been infected.
2. 长对话答案解析：
（1）What are the two speakers mainly discussing?
答：They are mainly discussing the recent changes in their neighborhood.
（2）What is the woman's opinion about the new restaurant?
答：The woman thinks the new restaurant is good but a bit expensive.
3. 长篇阅读答案解析：
（1）What is the main idea of the article?
答：The article mainly discusses the impact of climate change on the environment.
（2）How does the author argue against the idea that climate change is a natural phenomenon?
答：The author argues against this idea by providing evidence from scientific studies.
4. 仔细阅读答案解析：
（1）What are the main causes of the problem discussed in the article?
答：The main causes include pollution, overdevelopment, and poor environmental management.
（2）What measures should be taken to solve the problem?
答：To solve the problem, we should implement stricter environmental regulations, promote renewable energy, and raise public awareness.
5. 翻译答案解析：
（1）原文：随着科技的进步，我们的生活发生了翻天覆地的变化。
翻译：With the advancement of technology, our lives have changed dramatically.
（2）原文：我们应该关注环境保护，保护我们共同的家园。
翻译：We should pay attention to environmental protection and safeguard our common home.
6. 写作答案解析：
（1）开头：In today's society, many people are concerned about the problem of internet addiction among teenagers.
（2）正文：There are several reasons for this phenomenon. Firstly, the Internet provides a vast amount of information and entertainment, which can easily attract teenagers. Secondly, some teenagers may be lonely or bored in their daily lives, and the Internet becomes their escape. However, internet addiction can lead to various problems, such as poor academic performance, health issues, and even psychological disorders.
（3）结尾：To solve this problem, parents and schools should work together to provide proper guidance and supervision. Teenagers themselves should also be aware of the risks of internet addiction and try to balance their online and offline lives.
以上就是2020年12月四级英语真题及答案解析，希望对考生和家长有所帮助。
