大多数方式副词位于句尾，但宾语过长，副词可以提前，以使句子平衡

就是说如同宾语说得很长，最后状语放在后面显得很不连贯，所以这种时候要把状语提到句首。如：
At that time, I noticed what's the matter with my classmates who are playing in the Gym but have no pretective methods for themselves.
如果你把at that time放在句尾，显得很怪，而且还会有歧意。