有一读者问： 下面句中的such是什么词类，起何作用？
(1)Such was Albert Einstein, a simple man of great achievements.
such像这样用在句首，曾遭到各种各样的批评，但现在已被公认为是规范英语了。这样的such一般皆被认为是指示代词，用以指代前面的句子，其句子功用是主语，如：
(2)The explosion blew out all the windows, such was its force.
句（1）之前未道出such所指代的句子，与句（1）同样的句子再举一些如下：
(3)Such is life!
(4)Such was the result.
(5)Such were her words.
(6)Such often occurred in feudal society.
但置于句首的指示代词such并不总是起着主语的作用，如：
(7)Such was her fright that she closed her eyes.
这个句子实际上相当于：
(8)Her fright was such that she closed her eyes.
只是为了强调such而将它移至句首了。因此，such在此并非用作主语，而是用作表语。最后还应指出，上述句（1）—（6）的指示代词such比较文气，多用在书面语中，而在口语中则常代之以this, that, it, one等。
