IB英语作文的写作需要遵循一定的结构和原则，以下是一些关键点：

明确Text Type

确定你的文本类型（如说明文、议论文、叙述文等），这会影响你的语言选择和结构安排。

了解Targeted Audience

明确你的目标受众是谁，这将影响你的语言风格和内容选择。

确定Purpose

明确你写作的目的，是为了提供信息、说服、娱乐还是其他。

使用TAPAC结构

在引言中阐述Text type、Author、Purpose、Audience和Context，为清晰有效的文本分析做好准备。

处理写作题目

在确定了读者、目的和形式后，选择合适的语言、语气和结构。

论证充分

议论文应包含论点、论据和论证三大要素，确保论证过程逻辑清晰。

语篇连贯

保持段落和文章整体的连贯性，使用恰当的过渡词和句子结构。

段落主题统一

每个段落应集中讨论一个主题，避免主题分散。

注意评估标准

了解IB英语文学论文的评估标准，如标准A（理解和解释）和标准B（分析和评价），确保你的文章在这些方面都表现出色。

组织结构

使用清晰的结构，如简介、主体（包含主题句、说明论点、解释分析）和结论。

Title: The Impact of Social Media on Teenagers

Introduction：

Social media has become an integral part of our daily lives, especially for teenagers. It has revolutionized the way we communicate, learn, and entertain ourselves. However, the pervasive use of social media among teenagers has also given rise to concerns about its potential negative impact.

Body Paragraph 1：

The primary purpose of social media is to connect people and facilitate communication. Teenagers use platforms like Instagram, Snapchat, and TikTok to stay in touch with friends and family, share experiences, and express themselves. This has led to the emergence of new trends and cultural movements.

Body Paragraph 2：

Despite its benefits, social media can also have detrimental effects on teenagers. Issues such as cyberbullying, privacy concerns, and the pressure to present a perfect image can lead to mental health issues like anxiety and depression. Additionally, excessive use of social media can affect academic performance and real-life social skills.

Conclusion：

In conclusion, while social media offers numerous advantages for teenagers, it also poses significant challenges. It is essential for parents, educators, and policymakers to work together to create a safe and healthy online environment for this vulnerable demographic. By understanding the impact of social media, we can better equip teenagers to navigate its complexities and harness its benefits.

通过遵循上述建议，你可以撰写出结构清晰、内容充实的IB英语作文。