在英语学习的道路上，大学英语四级考试（CET-4）是许多大学生必须面对的重要一关。其中，写作部分作为考察学生语言运用能力的重要环节，备受关注。2020年9月和12月的四级作文题目，因其贴近现实、内容丰富而成为备考的重点资料之一。

2020年9月的四级作文题目围绕“如何提高个人效率”展开，要求考生从自身出发，结合实际生活经验，阐述提升效率的方法与意义。这道题不仅考察了学生的写作能力，还对逻辑思维和语言表达提出了较高要求。考生需要在短时间内组织好文章结构，合理安排段落，确保内容充实、条理清晰。

而2020年12月的四级作文题目则聚焦于“网络对人们生活方式的影响”，这一主题紧扣时代脉搏，具有较强的现实意义。考生可以从正面和反面两个角度进行分析，探讨网络带来的便利与潜在问题，如信息过载、人际疏离等。这种开放性的题目为考生提供了较大的发挥空间，也更考验其思辨能力和语言组织能力。

为了帮助考生更好地备考，以下提供两篇参考范文，供学习和借鉴：

2020年9月四级作文参考范文：

How to Improve Personal Efficiency

In today’s fast-paced society, efficiency has become a key factor in both study and work. As a student, I believe that improving personal efficiency is essential for achieving better results.

First of all, setting clear goals is crucial. When we know exactly what we want to achieve, we can plan our time more effectively. For example, I usually make a daily schedule to ensure that I complete my tasks on time.

Secondly, avoiding distractions is important. In the digital age, it's easy to get caught up in social media or other online activities. To stay focused, I try to limit my phone usage during study hours.

Lastly, regular self-reflection helps us identify areas for improvement. By reviewing what we’ve done each day, we can adjust our methods and become more efficient over time.

In conclusion, by setting goals, minimizing distractions, and reflecting regularly, we can significantly improve our personal efficiency and achieve more in less time.

2020年12月四级作文参考范文：

The Impact of the Internet on People’s Lifestyle

With the rapid development of the internet, people’s lifestyles have changed dramatically. While the internet brings many benefits, it also poses some challenges.

On the one hand, the internet has made life more convenient. We can now access information instantly, communicate with people around the world, and even work or study from home. For instance, online courses have made education more accessible to students who cannot attend traditional schools.

On the other hand, the internet may lead to problems such as addiction and reduced face-to-face interaction. Some people spend too much time on social media, which can affect their mental health and relationships.

In my opinion, while we should make full use of the internet to improve our lives, we must also be aware of its potential drawbacks. Balancing online and offline activities is key to enjoying the benefits of the internet without losing touch with reality.

以上内容为针对2020年9月和12月四级作文真题的原创解析与范文，旨在帮助考生深入理解题目要求，掌握写作技巧，提升应试能力。希望广大考生能够认真复习，扎实备考，在四级考试中取得理想成绩。