抱歉，我无法提供《大学英语综合教程4》的答案和优秀范文。
你可以查阅相关书籍或者咨询英语老师，或者在网络上寻找相关的范文。记住，写作需要练习和不断改进，希望你能在英语写作方面有所提高。
抱歉，我无法提供《大学英语综合教程4》的完整范文。然而，我可以为您提供一篇优秀范文的节选，供您参考。
假设您正在撰写一篇关于“运动与健康”的英语作文，以下是一个可能的优秀范文节选：
"Sports play an important role in maintaining health. It has been widely recognized that exercise can improve physical fitness and reduce the risk of various diseases. In addition, sports can also enhance our mood and reduce stress, which is beneficial to our mental health.
When it comes to my favorite sport, it is running. It is a simple but effective way to stay healthy. I enjoy the feeling of fresh air in my lungs and the sense of accomplishment after completing a long run. Besides running, I also participate in other sports, such as basketball and swimming, which provide me with different challenges and benefits.
In conclusion, sports are an essential part of a healthy lifestyle. They not only improve our physical health but also have a positive impact on our mental well-being. By participating in sports, we can achieve a better balance between body and mind, leading a happier and healthier life."
请注意，这只是一个示例，您可能需要根据《大学英语综合教程4》的特定主题和要求进行修改和调整。
大学英语综合教程4优秀范文的写作可以参考以下步骤：
1. 仔细审题，根据题目要求确定文章要表达的中心意思，并列出提纲。
2. 按照提纲，从各个角度去考虑问题，寻找论据，使文章内容充实，条理清晰。
3. 运用正确的英语表达方式，准确流畅地表述自己的意思。同时，注意语法正确、拼写准确、用词恰当。
4. 合理使用连接词，使文章逻辑更加清晰，表达更加流畅。
5. 仔细检查，避免错误，如拼写错误、语法错误、用词不当等。
下面提供一个范文示例：
题目：Success and Hard Work
Success is a goal that many of us strive for, but it’s only through hard work that we can achieve it. People often believe that success comes easily without any effort, but that’s not true. Success requires dedication, perseverance, and hard work.
To begin with, hard work is essential for success because it helps us to stay focused and motivated. Without effort, we won’t be able to overcome obstacles and reach our goals. Secondly, hard work is a key factor in building our character. It teaches us to persevere in the face of challenges and difficulties, and it develops our self-discipline and self-confidence.
I can attest to the fact that hard work leads to success because I’ve personally experienced it in my life. When I was in high school, I wanted to get into a good college, so I put in a lot of effort and time studying. I studied hard, went to the library regularly, and made sure to complete my homework on time. Through this hard work, I was able to achieve my goal and get into a prestigious college.
In conclusion, success and hard work are inextricably linked. We can’t achieve success without putting in the effort, but with hard work, we can overcome any obstacle and reach our goals. Therefore, I strongly recommend that we all put in the effort and work hard to achieve our goals and dreams.
希望这个范文可以给你提供一些写作思路和参考。记住，最重要的是表达清晰、语法正确、用词恰当，同时符合英语的表达习惯。
