His sensations were bitter enough. The race, it is true, which he had thus summarily dismissed from their ancient place of refuge, was idle and vicious; but had he endeavored to render them otherwise? They were not more irregular characters now, (1) than they had been while they were admitted to consider themselves as a sort of subordinate dependents of his family; and (2) ought the circumstance of his becoming a magistrate to have made at once such a change in his conduct toward them? Some means of reformation ought at least to have been tried, before sending seven families at once upon the wide world, and (3) depriving them of a degree of countenance which withheld them at least from atrocious guilt.

译文：他感觉很痛苦。不错，这个民族非常懒惰、堕落，他曾经这样把他们从古老的避难所驱逐出去，但是假如他曾经努力去给他们提供另一种待遇，那又会怎么样呢？假如他承认他们、接受他们，把他们视为家庭的下属成员的话，他们将不会像现在这样性格反常了。作为地方法官，在管理过程中，他是不是应该立刻着手改变这里的环境呢？在把七个家庭立即送到荒蛮之地之前，(3)在剥夺起码会使他们懂得罪恶感的颜面之前，至少应该尝试一些革新。

老师好，请教老师该段落分析：

句1）Than 在此句是什么词性？什么意思？

句2）含ought 的句型结构是什么？我没看懂这个句型结构。

句3）翻译恰当吗？感觉很难理解。

谢谢老师!