Explain how English has become a lingua franca for the world

Explain how English has become a lingua franca for the world
有人能用英语叙述下吗?三五百字就行了!

By electing English as the world language,the history sentenced monolingualism to become the illiteracy of the coming future.But how did it happen?
As a result of the Industrial Revolution,the British economic predominance in the 19th century paved the way for a colonialism of large geographical reach that spread the English language in the world.
More importantly,the strong political and military predominance of the U.S.after World War II paved the way for a substantial economic and cultural influence that displaced French from the sphere of diplomacy and fixed English as the standard for international communication.
THE PRESENT SCENE
Today's search for information and need for global communication have already promoted English from being the language of the American,the British,the Irish,the Australian,the New Zealand,the Canadian,the Caribbean,and the South African peoples to being the international language.While portuguese is spoken in 4 countries by approximately 195 million people,English is spoken as a native language by nearly four hundred million people and has become a lingua franca,the Latin of the modern world,"spoken in every continent by approximately eight hundred million people" (Todd iv).
More radical estimates,which include speakers with a lower level of language fluency and awareness,have suggested that the overall total is these days well in excess of 1,000 million.(Crystal 360)
In addition,it is estimated that 75 percent of all international communication in writing,80 percent of all information in the world's computers,and 90 percent of Internet content are in English.
The inexpensiveness of air transportation has increased interpersonal contacts worldwide.Computer,optical fiber,and satellite technologies likewise have made possible a boom in telecommunications,bringing up the concept of information superhighway.These two developments demonstrate how the world has evolved into a global village and how imperatively a standard language is required.
In its role as a global language,English has become one of the most important academic and professional tools.The English language is recognized as undoubtedly the most important language for the increasingly mobile international community to learn.This is a fact that seems to be irreversible.English has become the official language of the business and scientific worlds.
Philip B.Gove in his preface to Webster's Third New International Dictionary illustrates this point:
It is now fairly clear that before the twentieth century is over every community of the world will have learned how to communicate with all the rest of humanity.In this process of intercommunication the English language has already become the most important language on earth.