2) 当here, there, then, thus, only, hence, little等副词位于句首，句中主、谓用倒装。
　　Here is the book for you.
　　There goes the bell.
　　Then came the order to take off.
　　Thus arose the division between the developed and developing countries.

　　3) 当 so/such … that结构中的so或such 位于句首时用倒装。
　　So cold was it at night that I could hardly fall asleep.
　　Such was the force of explosion that all the windows were broken.

　　4) 分句以so, neither, nor, no more等副词位于句首，表明前面句子中所说明的情况也使用于后面的句子时用倒装。
　　Copper is a good conductor. So are many other metals.
　　He didn’t see the film last night, neither did she.