Good morning, everyone. Today we're going to look at the history of the bicycle. Many people assume the bicycle was invented in the 19th century, but in fact, early versions appeared as far back as the 15th century in Italy. However, these were not pedal-powered; they were pushed along by the rider's feet. The first pedal bicycle, known as the 'boneshaker', was developed in France in the 1860s. It had a wooden frame and iron tires, which made rides very uncomfortable. Later, in the 1880s, the 'safety bicycle' with two equal-sized wheels and a chain drive became popular, making cycling much safer and more efficient.
❓ ¿Qué dice el conferenciante sobre las primeras bicicletas?
A. Se inventaron en Italia en el siglo XV y funcionaban con pedales.
B. B) Aparecieron en el siglo XV pero no eran impulsados por pedales.
C. C) La primera bicicleta de pedales se fabricó en Italia en la década de 1860.
D. D) El 'boneshaker' tenía dos ruedas del mismo tamaño y una transmisión por cadena.
✅ 正确答案
B) They appeared in the 15th century but were not driven by pedals.