The present age is an age of globalization.Anything produced or invented in any part of the world gets global character or recognition very rapidly.To keep pace with the process of globalization, we need to learn English.Conversely, the globalizing process requires single language for international communication.For various reasons English has achieved the prestige of global language.As a result,it has crossed the national borders of English speaking countries and reached people who speak other languages.English is no longer a unique possession of the British or American people, but a language that belongs to world’s people.