2、在由so开头、引导的表示"前面所说的情况也适用于另一人(或事物)"的句子中，要求用倒装结构，so为"肯定的附和"。例如：
John had been working hard and_______ .
A)so had his brother
B)so his brother had
C)so was his brother
D)so his brother did(CET-4，1991.1-70，选A)
3、由there引起的句子，要求用倒装结构。例如：
1)The door opened and there entered a young man in a blue uniform.
2)There used to be a hospital in the corner.
4、由there或now引起的句子、谓语为 come(go)的句子，要求用倒装结构。例如：
1)There comes the bus.
2)Now comes your turn.