在撰写英语演讲的开场白时，以下是一些常用的开场方式，你可以根据演讲的主题和场合选择合适的开头：

正式商务场合:

```

Good morning/afternoon/evening, ladies and gentlemen. Thank you for taking the time to join me today. As we all know, the topic of [topic] is of great importance to our [company/organization/industry]...

```

学术或教育场合:

```

Good morning/afternoon, dear teacher and my friends. It’s a very interesting topic today. I’m excited to share with you some insights on [topic]...

```

非正式或社区场合:

```

Hi everyone! I’m [Your Name] and I’m thrilled to be here today to talk about [topic]...

```

引人深思或具有启发性的话题:

```

Good evening, Ladies and Gentlemen: I’d like to start with a thought-provoking question. What if we looked at [topic] in a different light？...

```

感谢听众:

```

Let me start by thanking you all for coming. It’s a pleasure to be here with such an engaged and interested audience...

```

记得开场白要简洁明了，能够立即吸引听众的注意力，并为你的演讲设定正确的基调。