There’s a reason fire squads battling more frequent blazes in Southern California are having such difficulty containing the flames.
本句看起来不完整,reason后是省略了why吗?为什么省略why?
是的,修饰reason的定语从句可以省略关系副词why。
见《新编高级英语语法》P.651:
在随常口语中,关系副词常常被省略,或者为that 所取代例如:
......
That's the reason ( ) he can't go, you see.
以及《现代英语语法》P.1308:
在限定性定语从句中,当先行词是表时间,地点,原因,方式等名词时,关系副词when,where,why,how可以省略。
如有谬误,还请各位老师指出。