His first book net month is based on a true story.为什么空格处填to be published而不是to publish.不是有主动表被动的用法吗?

His first book to be published next month is based on a true story.
book不能是施动者，只能是受动者。也就是说，book本身不能出版自己，只能被出版，即由人来出版to be published。

he is going to publish his first book
his book is to be published
如果这个地方是he have a book 那就可以了
he have a book to publish
They publish reference books...
他们出版工具书.
His latest book of poetry will be published by Faber in May.
他的最新诗集将由菲贝尔出版公司于5月出版.
Need,want,require（要求,需要）,deserve(应得,值得),be worth值得）,not bear(经不住) 后面接doing主动表被动.
The book is worth reading.这本书值得一读.
The old building requires repairing.这座古建筑需要修了.
These young seedlings will require/need looking after (=need to be looked after) carefully.这些幼苗将需要小心的照管.
Your hair wants/needs cutting (needs to be cut).你的头发该剪了.
不定式作定语,放在被修饰词后面,与前面被修饰的名词或代词有动宾关系,又在句子中与另一名词或代词有主谓关系,不定式要用主动表被动含义.
I have much work to do.我有许多要做的事情.（与work有动宾关系,与I有主谓关系）
Tom is looking for a room to live in.Tom在找一间住的房间.（与room有动宾关系,与Tom 有主谓关系）
He has a family to support.他要维持一个家庭.（与family有动宾关系,与he有主谓关系）