Today's lecture is about the history of the bicycle. The first pedal-powered bicycle was invented in the 1830s by a Scottish blacksmith named Kirkpatrick Macmillan. However, it wasn't until the 1880s that the 'safety bicycle' with two equal-sized wheels became popular, making cycling much safer and more accessible. Interestingly, the introduction of the safety bicycle also influenced women's fashion, as it led to the adoption of more practical clothing. By the early 20th century, bicycles had become a major mode of transport for workers, especially in European cities.
❓ Según la conferencia, ¿por qué fue significativa la 'bicicleta de seguridad'?
A. A. Fue la primera bicicleta jamás inventada.
B. B. Tenía dos ruedas del mismo tamaño, lo que la hacía más segura y más popular.
C. C. Funcionaba con vapor en lugar de pedales.
D. D. Solo era utilizado por mujeres para el ocio.
✅ 正确答案
B. It had two equal-sized wheels, making it safer and more popular.