写好英语作文可以通过对比两种方法来实现：一种是注意内容结构和逻辑，另一种是注重语言表达和细节。以下是具体说明：

### 内容结构和逻辑

**好：**

1. **清晰的主题句**：每个段落都有一个明确的主题句，概括段落内容。

- **示例**：In addition to improving academic performance, participating in extracurricular activities also fosters social skills.

2. **有序的段落**：逻辑顺畅，每个段落之间有明确的过渡。

- **示例**：Firstly, extracurricular activities provide students with opportunities to develop teamwork. Secondly, they allow students to explore interests beyond the academic curriculum.

**差：**

1. **模糊的主题句**：段落开头没有明确的主题句。

- **示例**：There are many benefits to extracurricular activities.

2. **段落混乱**：没有逻辑顺序，缺少过渡句。

- **示例**：Extracurricular activities are fun. They help students. You can make friends.

3. **缺乏具体支持**：论点缺少具体例子或数据支持。

- **示例**：Extracurricular activities are good for students.

### 语言表达和细节

**好：**

1. **丰富的词汇**：使用多样化和高级的词汇表达思想。

- **示例**：Participating in extracurricular activities can significantly enhance a student's academic prowess and social dexterity.

2. **正确的语法和标点**：语法和标点准确，无明显错误。

- **示例**：Students who engage in these activities often exhibit improved time management skills, which are crucial for their future careers.

3. **生动的描述和具体细节**：使用生动的语言和细节让文章更有吸引力。

- **示例**：The robotics club, for instance, not only sparked my interest in engineering but also taught me the value of perseverance and collaborative problem-solving.

**差：**

1. **简单和重复的词汇**：词汇简单，重复使用同样的词语。

- **示例**：Doing activities after school is good. It is good for learning. It is good for making friends.

2. **语法和标点错误**：频繁的语法和标点错误影响理解。

- **示例**：Students who does activities often has better management skills, this is important for future.

3. **缺乏具体细节**：描述笼统，缺少具体细节。

- **示例**：The club was good. I learned a lot and had fun.

### 总结

写好英语作文需要同时注重内容结构和逻辑，以及语言表达和细节。通过对比好的和差的写作方法，可以更清楚地了解如何改进自己的写作技巧。确保有清晰的主题句和逻辑顺序，使用具体的支持论据，同时丰富词汇和正确语法，这样的作文才会更加出色。