Speaking to Dutch newspaper Algemeen Dagblad, Fer said: "It is far too early to talk about the World Cup, but playing in Brazil against the best players of the world is a once-in-a-lifetime chance.
"I will do everything to be part of that, but I can only do it in one way - give everything at Norwich and take all chances I get for the Oranje with both hands."
Fer, whose last senior call-up came as a substitute against Turkey in September 2009, continued: "It is really fantastic that I am here again.
"The first months at Norwich City gave me a good feeling, and the experience here in England is fantastic. Fortunately I could adapt quickly. I now also want to show that I have developed myself with Holland."
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