Dear Sir or Madam,
I would like to apply for an internship with your company.
In June 2013, I received my high school diploma, with a concentration in economics. Accordingly, I plan to study business or marketing in university. Before doing so I would like to spend a year abroad in an English-speaking country, preferably in Canada. Currently I am working various part-time jobs to finance this year abroad.
During my time in Canada, I hope to travel, and to experience Canadian culture, its landscape and everyday life. To help me achieve this goal, I would like to carry out an internship with your company. I believe this will allow me to learn more about Canada and about myself, and improve my proficiency in English. But certainly my strongest interest is to be a part of an internationally renowned company. Due the fact that international success is not only based on the quality and quantity of the company's products, but also on skillful marketing and business, I see a perfect opportunity in an internship with the XxXx corporation. I am looking forward to gaining important personal and professional experience, which will surely help me in my future career.
I am highly motivated and look forward to the varied work that an internship with your company would offer me.
Yours faithfully, XxX
I tried to correct your English as a native speaker; but take my suggestions with a pinch of salt (mit Vorsicht), as I can't even find a Nebenjob in the country where I live (so am not the best person to ask for employment advice).
Meiner Meinung nach ist Ihre Bewerbung sehr gut und klar geschrieben. Sie enthält viele gute Punkte und hat eine gute Struktur.
Vielleicht sind diese Webseiten hilfreich? Ich weiß nicht, worum Sie sich bewerben, also leider sind diese Empfehlungen sehr allgemein. Einige sind auf Englisch, einige auf Deutsch.
canadainternational . gc.ca/germany-allemagne/experiencecanadaexperience/index.aspx?lang=deu
internships.about . com/od/resumescoverletters/ResumesCoverLetters.htm (amerikanische Webseite aber gilt auch für Kanada)
allaboutcareers . com/careers-advice/internships/applying-for-an-internship
travelworks . de/praktikum-kanada.html
travelworks . de/work-and-travel-kanada/working-holiday-kanada.html
Kanada ist ein schönes Land, und ich wünsche Ihnen viel Erfolg bei Ihren Bewerbungen und bei Ihrem Praktikum in Kanada.