以下是一些常见的英语辩论赛开头的表达方式：
1. Good morning/afternoon, dear judges, fellow debaters and audience. Today, we are gathered here to debate on the topic...
这是一种比较正式和礼貌的开场，先向评委、辩手和观众问好，然后引出辩论的主题。
2. Ladies and gentlemen, welcome to this exciting debate. The issue we are going to discuss today is...
这种开头先对现场的人员表示欢迎，营造出友好的氛围，再介绍辩论主题。
3. Hello everyone! It's a great pleasure to be here to engage in this thought-provoking debate. Our topic for today is...
通过表达参与辩论的喜悦，引起大家的兴趣，接着说明主题。
4. Distinguished judges, opponents, and friends. We are now commencing this debate on the subject of...
使用“distinguished”（尊贵的、杰出的）来称呼评委，显示出对他们的尊重，随后开启辩论。
在开头，清晰地介绍自己和团队，以及对主题的简要阐述，能够为整个辩论赛奠定良好的基础。
