Most of us may have such experiences: when you go to place far away from the city you live in and think you know nod there , you are surprised to find that you should run into one of classmates on the street! Perhaps both of you would cry out, "What a small world!"
Why is the world getting smaller and smaller? For one modern technology has made various means of transportation me and more advanced. Buses, trains, planes, taxis, ships a available in most cities of the world. They carry goods a passengers to and from every corner of the world. For another thing, with the development of modern society, people a contacting one another more frequently. Every day we must do with a lot of people known or unknown to us before. The mo advanced a society, the more contact with other we make.
So we draw to the conclusion that as long as technology make progress, the world will be getting smaller and smaller.