2015-2021年考研英语作文的题目和范文如下：

2015年

题目：描述一幅图画，并解释其寓意。

范文：

```

The images above are both meaningful and instructive: this man's hard work is not only for his own benefit, but also for the benefit of future generations. The pictures serve to remind us of the importance of sustainable development and the need to balance our current actions with the well-being of the planet.

```

2021年

题目：给大学校长写一封信，建议如何改善学生的身体状况。

范文：

```

Dear President,

I am writing to suggest some ways to improve the physical condition of our students. Firstly, regular physical exercise classes should be mandatory for all students. This will help them develop a healthy lifestyle and stay fit. Secondly, providing access to nutritious food in the school cafeteria is crucial. Students should be encouraged to eat balanced meals to maintain their energy levels and focus on their studies.

Thank you for considering these suggestions. I believe that with these measures, we can create a healthier and more productive learning environment for our students.

Sincerely,

[Your Name]

```

这些范文展示了如何描述图画并解释其寓意，以及如何给大学校长提出建议。希望这些信息对你有所帮助。