Imperious Curse

[alora67]

No: HPFGUIDX 40818

I know that this has been discussed, so please please point me to 
the correct thread, if there is one devoted to this.  

If Crouch! Moody is Barty Jr. and working for Voldemort (which we 
know he is),  why does he teach Harry to throw off the Imperious 
curse in DADA class?  I have always wondered about this.  Does he do 
it because he is, as the DADA teacher, expected to do that? In my 
eyes, he seems to really be excited about Harry being the only one 
to be able to throw it off.  Why is that?  Any comments or 
suggestions?  In GoF it says "Moody had insisted on putting Harry 
through his paces four times in a row, until Harry could throw off 
the curse entirely." (page 232, US)  Why did he do this?  Any 
insight would be much appreciated...

Alora