关于“诚实”的英语作文开头，可以参考以下结构与素材：

一、名言引用式开头

1. "Honesty is the best policy." - William Shakespeare（诚实是最好的策略）

2. "A clean mouth and honest hand, will take a man through any storm."（诚实为舟，信用为帆）

3. "Truthfulness is not a sign of weakness, but of strength."（坦率不是软弱，而是力量）

二、故事引入式开头

"Here Comes the Wolf"：讲述放羊娃撒谎后狼来了的故事，引出诚信的重要性

历史人物案例：如美国总统华盛顿拒绝接受国王赏金的故事

三、现象描述式开头

当前社会存在考试作弊、商业欺诈等不诚信现象，反问读者：我们还能相信什么？

四、哲理阐述式开头

诚实是人际关系的基石，如同空气般不可或缺

短期利益与长期信誉的权衡，强调诚实的长远价值

示例段落：

"Good morning/afternoon, everyone. Today, I'd like to talk about a virtue that forms the foundation of our society: honesty. As William Shakespeare wisely said, 'Honesty is the best policy.' This principle not only guides our interactions but also shapes our character. Yet, in modern times, we face challenges that test our integrity. For instance, the prevalence of academic dishonesty and commercial deceit raises questions about trust. How do we balance short-term gains with long-term moral values？ Let's explore this further."

（注：可根据作文主题选择合适开头，建议搭配相关论据和例证增强说服力）