很高兴为您解答.be considered 和 be considered as 二者后接成分大体无差别.只是意思上稍有不同.请看下面的解释.
be considered:被认为是;被当做,
例句:If you do not have it,you might be considered impolite.
如果没有眼神交流,你可能会被认为没有礼貌.
be considered as被认为是(作为);被看做
Should Be Considered As 可以应视为为
be considered as a whole 被看成是一个整体
例句:
But to be considered as a basic emotion it should also have a purpose.跟读
但是要被视作一种基本情绪,它也应该有一个目标.
依我看,前者 多用于口语