根据您提供的信息，2019年考研英语的小作文题目和范文如下：
考研英语（一）2019年小作文真题及范文
题目：假设你正在为你们大学的“援助乡村小学”项目工作，写一封邮件回复一位国际学生志愿者的询问，具体说明该项目的细节。
范文：
```
Dear friend,
This email comes to you from one member working for the “Aiding Rural Primary School” project of our university named Li Ming. I would be glad to receive your inquiry and I am writing this email to you to extend my intention of informing you some details about this project. The details about this project can be...
```
考研英语（二）2019年小作文真题及范文
题目：假设史密斯教授让你规划一场关于城市交通主题的辩论，给他写一封邮件，1） 提出一个具体主题并说明理由，2） 告诉他你的安排。
范文：
```
Dear Professor Smith,
I hope this email finds you well. I am writing to discuss the planning of the upcoming debate on...
```
考研英语（一）2019年小作文真题解析及参考范文
题目：写一封邮件给James Cook，1） 推荐你所在城市的一个旅游景点，2） 说明推荐的原因。
参考范文：
```
Dear Mr. Cook,
I am writing this letter to recommend you one of the tourist attractions in my city —The Great Wall. The detailed reasons for my recommendation are listed as the following. At the top of the list, the Great Wall is one of the oldest historic interests in China. In addition, there are a large...
```
以上是2019年考研英语小作文的部分真题及范文。