Eternity,Communion and Innovation——Analysis and Discussion on Theme Song of Opening Ceremony in Modern Summer Olympic Games

Modern Olympic Games are the world's highest level,the largest and most far-reaching multi-sports.Olympic Games are not only a sports event,but also show the national culture and arts event.Opening ceremony of the Olympic Games is made by the many forms of composition,and the Olympic Games theme song is part of culture and the arts logo and one of the important carriers of Olympic cultural heritage.Analysis of the Olympics theme song's structure and historical evolution,summarization up the Olympic theme song by the cultural characteristics of the host country,reflecting the harmony of the universal human spirit and the heroism of individuals struggling.