sorry for my bad english.
You should give Sinatra a shot. It's a very lightweight framework which allows you to see what's going on under the hood in a much easier way than in Rails. It'll teach you some basic concepts of Ruby web programming without all the overwhelming stuff that's inside Rails.
If you want to go even deeper, take a look at Rack which is the basic piece of every Ruby web application architecture nowadays. You can create very minimalistic application that are based solely on Rack.
Simply Rails 2 and Learning Rails are excellent beginner book on rails.