be going to 在肯定句中的形式：
be going to 结构中的`助动词be很少用原形，它一般有三种形式，即：am , is , are 。当主语是 I 时用am ；当主语是第三人称单数时用is；当主语是其他人称时用are。
例句：
I am going to tell you a story.
我要给你们讲一个故事。
I am going to show you the sights of our wonderful city
我会带你浏览我们这座美丽城市的风景名胜。
The result is going to be too close to call.
双方实力非常接近，因此结果无法预料。
The conference is going to be a lot of extra work.
这次会议将意味着很多额外工作。
You need to signpost for the reader the various points you are going to make.
你需要向读者介绍你将阐述的各个论点。
Even quite big companies are going to the wall these days.
现如今甚至有些大公司也濒临破产。