1.little（作副词时）,hardly,neither,nor,not only,so,often（也可以不到装）
2.全部倒装常见的有两种：
a.表示存在的句子,如：
From the ceiling hangs a light.
On the table is a pen and two books.
b.趋向性动词+副词：
Here comes the bus.
In came the teacher.