There will have和There is going to be有什么不同

没有There will have这种说法，只有There will be。
There will be和There is going to be有以下区别：

be going to与will两者都可表示将要发生的事、将要去做某事，但它们有如下几点差别：
1.be going to 表示近期、眼下就要发生的事情，will 表示的将来时间则较远一些，如:He is going to write a letter tonight. He will write a book one day.
2. be going to表示根据主观判断将来绝对发生的事情，will表示客观上将来势必发生的事情。 如：He is seriously ill. He is going to die. He will be twenty years old.
3. be going to含有“打算，准备”的意思，而will则没有这个意思，如：She is going to lend us her book. He will be here in half an hour.
4.在有条件从句的主句中，一般不用 be going to，而多用will。如：If any beast comes at you, I'll stay with you and help you.
5. will可以表示主动为他人做某事或是给出一个承诺，可以翻译为„为‟和„会‟。 It is very cold. I will make you some hot coffee. If you take part in the election, I will support you.

下面是一道例题：
—I‟ve come out without any money. Never mind I __________ you some.
A. am going to lend B. will lend C. have lent D. am to lend
【分析】此题应选B。容易误选A。这里主要谈一谈有关“will＋动词原形”和“be going to＋动词原形”的区别：
在通常情况下两者都可表示将来时间和意图，且有时可换用： 我不会告诉你这事的。 正：I won‟t tell you about it. 正：I‟m not going to tell you about it.
但是此时要注意：若是强调某个意图是经过事先考虑好的，则通常要用be going to；若是表示某个意图没有经过事先考虑，而是在说话的当时才临时想到的，则通常用will，且以上两种情况通常不能换用。
比较并体会：
1. —Come to the party. 来参加晚会吧。
—OK，I‟ll bring my boyfriend. 好的，我把我的男 朋友也带来。(临时想法)
2. —Where is the telephone book? 电话薄在哪?
—I‟ll get it for you. 我去给你拿。(临时想法)
3. —Why are you taking it out? 干吗要把它拿出来?
—I‟m going to wash it. 我想把它洗一洗。 (事先考虑)
4. —Have you bought a typewriter? 你买了台打字机吗?
—Yes. I‟m going to learn to type. 是的，我想学打字。(事先考虑)

there will be 是纯将来时态 是没有计划的going to be 则一般指别人计划好的如：there is going to be a football match tomorrow. 一般不用there will be there will be no one leaves at 3 o clock.

will have 是肯定
going to be 是即将

没区别。。。。