Today's lecture is about the history of the bicycle. The first bicycle, invented in the early 19th century, had no pedals and was propelled by pushing your feet against the ground. Later, in the 1860s, pedals were added to the front wheel, leading to the famous penny-farthing design. However, this design was dangerous because riders sat high above the ground. It wasn't until the 1880s that the 'safety bicycle' with a chain drive and two equal-sized wheels became popular. This design made cycling much safer and more accessible to the general public, especially women, as it allowed for more practical clothing.
❓ 페니파딩 자전거의 주요 단점은 무엇이었나요?
A. A. 언덕을 오르기에는 너무 무거웠다.
B. B. 그것은 브레이크가 없었다.
C. C. 라이더들은 지면에서 높이 위치해 있어 위험했다.
D. D. 운영하려면 특별 면허가 필요했다.
✅ 正确答案
C. Riders were positioned high above the ground, making it dangerous.