[译文] 校长语气非常严肃，学生们都知道校方很重视这件事。
(1) 画线部分错误分析。
本题的考点为so that和 such that引导结果状语从句的区别。so是副词，与形容词或副 词连用，其结构为so +adj./adv.+ that从句; such是形容词，其结构为such +n.+ that..., such在此句中充当句子的表语。本题强调的是校长语气的程度之深，且在本句中作表语, 因此本题正确答案是D 。
(2)选项分析。
根据以上分析，本题考查结果状语从句，故排除A 和 C 选项。A 选项such as表示举 例时意为“ 例如，诸如此类的” ，相当于like 或 for example; such as用作关系代词时， 亦可引导定语从句。C 选项as such主要有两个意思：① （与否定词连用）表 示 “严格 来说”，例如 I am not a learner as such — I used to ride a bike years ago (严格说来，我并 不完全是一个初学者— 几年前我经常骑自行车) ；② （用于名词后）表 示 “ 本身”，“像所指的人（或—物）那样”，例如 Mr. Simon said he was not against taxes as such (西蒙先生说他不反对这样的税收) 。
[知识拓展]语法拓展： so that与 such that。
so that和 such that都可以用来引导结果状语从句，意为“ 如此……以至于…...”
(1) so是副词，与形容词或副词连用，其结构是so + adj.（adv.) + that从句。
e.g. He is so good a doctor that everybody loves and respects him.
他是一位好医生，大家都尊敬并爱戴他。
注意：当名词前面有many, much, few，little 等表示数量多少的限定词时，应该用 so，而不能用such。
e.g. There were so many people in the street watching the fire that firefighters could not get close to the building.
街上围观大火的人太多了，消防队员无法靠近大楼。
(2) such是形容词，它所修饰的名词可以是可数名词，也可以是不可数名词；名词前面 可以带形容词，也可以不带。如果其后是单数可数名词，前面需加不定冠词a或an。因此， such ... that...的句型结构可分为以下三种：
① such + a (n)(+adj.）+ 单数可数名词+ that从句。
e.g. He was such an honest man that he was praised by the teacher.
他非常诚实，因而受到了老师的表扬。
② such (+adj.）+ 复数可数名词+ that从句。
e.g. They are such interesting books that I want to read them once more.
这些书非常有趣，我想再读一遍。
③such (+adj.）+ 不可数名词+ that从句。
e.g. It was such bad weather that I had to stay at home.
天气太糟，我不得不呆在家里。
或 The weather was such bad that I had to stay at home.
注意：当单数名词前有形容词时, 既可用so,也可用such,但不定冠词的位置却有所不同。
e.g. This is such an important meeting that you should attend it.
(=This is so important a meeting that you should attend it.)
这是一次很重要的会议，你一定要参加。