Question

there is going to be和there is going have的区别

Answer 1

there is going to be 的结构,没有there is going have 的结构,there is going to be 是there be 的将来时be going to 的结构。

there is going to be（将会有）=there will be是there be 句型的将来时结构.
be going to表示即将发生的动作；例：
She told him she was going to quit the job．
她告诉他,她即将辞职不干.
be going to可以用以表示某人打算做某事；例：
He is not going to be made a scapegoat．
他不会去做替罪羊.
在表示按计划或安排要发生的动作时,可以用be going to；.例：
The railway is going to be open on October 1．
这条铁路将于十月一日通车.

Answer 2

"there is going have", must relate to someone, like "have dinner".
"there is going to be", may be not relate to you, like something will happen.