so...that结构可省去so吗?

有一读者问: 在The Power and The Glory 一书中有这样一句话:

(1)She wanted him called Pedro—he was drunk that he took no notice at all and baptized the boy Brigitta.

这个句子中的drunk之前为何没有so? 我只知道so...that结构中常可省去that,难道so也可省去吗?

是的,so...that结构中的that在口语中常可省去,如:

(2)It was so dark I couldn't see anything.

但在正式或古旧的英语中,so也可不用,只剩下that,上述句(1)即是一例,再如:

(3)He was angry that he could not speak.

(4)He was hurt that he was speaking with less tenderness.

以上谈的都是so...that表结果或程度的情况。其实,so...that表目的时,在正式或古旧英语中,so亦可不用,如:

(5)We eat that we may live.

(6)I refused to dine with him that I might the sooner see you again, my dear.