题目内容：

Chinese kung fu, also known as wushu or Chinese martial arts, is an important part of traditional Chinese culture. It is probably one of the earliest and longest 1. (last) sports. The theory of kung fu is 2. (base) upon classical Chinese philosophy. Over its long history it has developed as 3. unique combination of exercise, practical self-defense, self-discipline and art. It is estimated that Chinese kung fu 4. (date) back to prehistoric society.

Bruce Lee (1940-1973) was a Chinese-American martial artist and actor, 5. is considered as the most 6. (influence) martial artist of the 20th century, and an important cultural icon. He used Wing Chun, a branch of Chinese kung fu, 7. his base, learned from the influences of other martial arts, and later created his own martial art philosophy — Jeet Kune Do.

Jackie Chan (born in 1954) is a Hong Kong martial 8. (art), actor, and singer. He 9. (begin) his film career as a stuntman(特技演员) in the Bruce Lee films. Now as a cultural icon, he is 10. (wide) known for combining comedy and stunts with his kung fu performances.