Today,globalization,English as the world's lingua franca,in people's daily lives,whether it is non-governmental exchanges or official exchanges have played an extremely important role.Because the United States have achieved higher status in the international arena,American English increasingly popular,American English and British English has become more important in English language in two.Although American English with British English,as are English,but it is different in many ways.English in many English-speaking countries in their own dialect,saying after another,of course,also often misunderstand the meaning of things that happen at the same time in modern life,time is precious wealth of each modern and traditional British-style English is relatively complex,The American English and convenient and practical,in line with historical trends.The United Kingdom,United States,Canada and other English scholars big countries have realized this trend,and from the grammar,vocabulary,and so conclude that the use of two languages differences. Today,globalization,English as the world's lingua franca,in people's daily lives,whether it is non-governmental exchanges or official exchanges have played an extremely important role.Because the United States have achieved higher status in the international arena,American English increasingly popular,American English and British English has become more important in English language in two.Although American English with British English,as are English,but it is different in many ways.English in many English-speaking countries in their own dialect,saying after another,of course,also often misunderstand the meaning of things that happen at the same time in modern life,time is precious wealth of each modern and traditional British-style English is relatively complex,The American English and convenient and practical,in line with historical trends.The United Kingdom,United States,Canada and other English scholars big countries have realized this trend,and from the grammar,vocabulary,and so conclude that the use of two languages differences.