倒装句是一种特殊的句式，为了表达的需要将主语和谓语动词的位置发生了变化，增强语气，突出重点。
倒装句 ：分为全部倒装和部分倒装，及特殊的if引导的虚拟语气的倒装。(1)there be 句型
There is going to be a meeting.
There is a book on the table.
(2)here, there, now, then, in, out等副词置于句首时需要倒装，但主语是人称代词时，不倒装。
Here comes the bus.--------正常语序 ：：The bus comes here .
Here he comes. -------- 正常语序 ： :He comes here.
In the room are many books . -------- 正常语序 ： :Many books are in the room .
2、部分倒装：需要借助助动词的帮忙： 将主 谓语 改变为=助动词 主语 动词(1)so, neither, nor置于句首
I like swimming, so does my brother.
(2)only在句首
Only with our combined efforts ,can we get over the difficulties.
正常语序 ：：We can get over the difficulties,only with our combined efforts .
Only in this way can we do the work well.
正常语序 ：：We can do the work only in this way .
(3)含有否定意义的词置于句首，如，hardly, no, seldom, no sooner, never, little, at no time, in no way,等
Never had I heard that.
正常语序 ：I had never heard that。
Little did I know about this.
正常语序 ：I knew little about this .
(4)以so 形容词或副词开头的句子，如，
So heavy is the box that he cannot carry it.
正常语序：The box is so heavy that he cannot carry it.
(5)用于某些表示祝愿的句中，如，
May you be happy forever.
正常语序：You may be happy forever .
3 用于省略if的虚拟条件句中将had, were, should提前，
Were I you, I wouldn’t do that.
正常语序：If I were you ,I wouldn’t do that.
Had he come, we would have won.
正常语序：If he had come ,we would have won.
综上述，倒装句，有着明显的规则，只要学生理解了，学会并不难。
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