句子开头是:That the ......为什么可以这样写?

一篇文章开头是:

That the globalization is gaining increasing momentum starts to exert a subtle impact on the world languages. Evidently, the growing transnational business communication and cultural exchange demands a new language to be created.

为什么句子一开头用that the ... ? 这样用有什么含义?
麻烦高人指点一下谢谢~

你好。简单地说，你问的是that the ... 是主语从句。
这里是两个单独的句子，你现在把它们合并起来： Mike works hard, That is true。
（翻译是：Mike工作努力是事实）。你可以用主语从句将它们合并起来
1 It is true that Mike works hard (that是主语从句的连接词，it是形式主语，that后面的是真正主语)
2 That ( Mike works hard ) is true （that是主语从句的连接词，括号里面的是主语)

楼上解释的很清楚了，是一个主语从句，我就不说了，楼主你该补补语法啦，这很基本的。加油哦 再看看别人怎么说的。

That引导主语从句，真正的主语是That the globalization is gaining increasing momentum，即全球化日益加剧，后面的句子starts to exert a subtle impact on the world languages. Evidently, the growing transnational business communication and cultural exchange demands a new language to be created.开始对世界语言产生微妙的影响。显然，越来越多的跨国企业沟通和文化交流需要创造一个新的语言。