引起倒装的前置状语用法

当句首状语为否定词或带否定意义的词语时，一般引起局部倒装。这些词语常见的有：never, not for one minute, no longer, on no account, no more, nowhere else, at no time, hardly, scarcely, rarely, not for nothing等。例

如：

Never have I found him in such a good mood.

句首状语若由 only+副词 、 only+介词词组 、 only+状语分句 构成，也可引起局部倒装。例如：

Only yesterday did he find out that his watch was missing.

以关联连词not onlybut also和so...that开头的句子，通常引起局部倒装。例如：

So small was the mark that I could hardly see it.