同学你好，该知识点来自沪江网校《英语零基础直达大学六级【挑战奖励班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好~
as soon as可以连接一个从句，意思和on是一样的，只不过要把on后面的短语going into the kitchen改成给一个完整的从句形式
As soon as I went into the kitchen, I turned on the light because it was dark.


on在这里的意思是“一……就……”，是介词，后面可以直接跟动名词作宾语。
On going into the kitchen  一进到厨房
On arriving at the station, he found his wife waiting to meet him.
他一到达车站，立即发现他的妻子在等着迎接他。

祝同学学习进步~