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、全部倒装：将谓语动词提到主语前面。

　　(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。