倒装句有什么规律可循吗?

倒装句有什么规律可循吗?
我问所有人为什么要有倒装,他们都说是表示强调,可是我想知道强调的是哪部分呢?为什么要强调那部分呢?除了以here,there,in,out,up,down,away等副词、介词放在句首以及in front,in the distance,to the east of 等地点状语放在句首时应使用完全倒装,其它的倒装都是部分倒装,总得有个理由吧?我的老师说的,要我们自己总结,说他们一共性,可是谁能看出来啊?
附：倒装一览表
完全倒装
1.\x05以here,there,in,out,up,down,away等副词、介词放在句首时应使用完全倒装,注意主语应是名词,主语若是代词则不能使用倒装句型.
In came the boy.
Away flew the bird.
但主语是代词时,不能完全倒装.
Here you are.
Away they went.
2.\x05in front,in the distance,to the east of 等地点状语放在句首时应使用完全倒装.
There appeared to be a man in black in the distance.
部分倒装
1.\x05否定词或词组,如 neither,nor,never,nowhere,not,seldom,rarely,scarcely,barely,hardly,no sooner,at no time,in no case,in no way,by no means,on no condition 等置于句首时；
No sooner had we got there than it became dark.
2.\x05so 表示“也”,neither/ nor表示“也不”； so / such… that 表示“那样……以至于”置于句首时；
He has made up his mind to continue with his studies,and so have I.
3.\x05only + 状语 / 状从,置于句首时 ,主句要部分倒装；
注意：当 only + 主语置于句首时,则用正常语序.
\x05Only in this way can we learn English well.
4.\x05not only … but also…引导两个分句时,not only 引导的分句要部分倒装；
Not only does the sun give us light but also it gives us heat.
5.\x05not until + 状语 / 状从,“直到……才”,置于句首时,主句要部分倒装；
Not until all the fish died in the water did the farmers realize how serious the pollution was.
6.\x05adj./ adv./ n./ v./ 分词 + as / though + 主语 + 谓语：引导让步状从句置于句首时；
Small as the atom is,we can smash it.
7.\x05在虚拟语气的条件句 中,如含 should,had,were,可将它们置于句首,且省略 if；
Were I in his position I wouldn’t do it that way.
8.\x05用于：May + 主语 + v.结构中,表示“祝愿”；
May you happy.