旅游英语的开头可以根据不同的场景和目的进行选择。以下是一些常见的开头方式：

自我介绍

Hello, everyone! I am your tour guide James. In the following four days, I will show you around Beijing. First let me tell you something about Beijing.

引入话题

How to say travel in English is the question you've asked. The translation of "旅游用英语怎么说" into English is "Travel in English" or "How to say travel in English".

描述场景

We can choose to travel during the holidays.

表达目的

Traveling is one of the joys of life.

具体行动

I will call a taxi to take us to the airport.

根据具体的情境和需要，可以选择以上一种或结合几种方式来开头，使文章或对话更加自然流畅。