Good morning, everyone. Today we're going to look at the history of the bicycle. Now, you might think the bicycle is a fairly modern invention, but in fact, the first two-wheeled vehicle, called a 'draisine', was invented in 1817 by a German baron. It had no pedals; you pushed it along with your feet. Then, in the 1860s, pedals were added to the front wheel in France. However, these early bicycles were very uncomfortable because of the solid rubber tires and rough roads. It wasn't until the 1880s that the modern 'safety bicycle' with a chain drive and two equal-sized wheels appeared, making cycling much safer and more popular.
❓ ¿Cuál fue la principal ventaja de la 'bicicleta de seguridad' introducida en la década de 1880?
A. Tenía neumáticos de goma maciza para un viaje más suave.
B. Estaba equipado con transmisión por cadena y ruedas de igual tamaño, lo que lo hacía más seguro.
C. Era más ligero y podía empujarse con los pies.
D. Fue la primera bicicleta en tener pedales en la rueda delantera.
✅ 正确答案
It was equipped with a chain drive and equal-sized wheels, making it safer.