Were are you from? Why do you want to do your training in Brazil, and what are your intentions flying here, private or comercial. As VF stated its cheaper and of a higher quality to do it in the US, if youre in TX like your profile shows, then you have one of the best training environements around you already. Get your license there and convert it here when youre done, despite, you cant rent a plane to do time over here and i guess you dont own a plane, do you?
If you want to learn portuguese dont try to learn with books or teachers from Portugal, Brazilian Portuguese is a litle bit different and this can confuse you until you get proficient. You ll find close to Rio Jacarepagua or Marica Aeroclubs, who might by a chance happen to have someone who speaks English, but CFIs nowadays arent staying long instructing due to an improved hiring environement.
Good luck though!