In today's lecture, we'll discuss the history of the bicycle. The first pedal-powered bicycle was invented in the 1860s by a French blacksmith named Pierre Michaux. However, it had wooden wheels and no brakes, making it dangerous. In the 1880s, the 'safety bicycle' introduced chain drive and equal-sized wheels, which greatly improved stability. This design became popular among women because it allowed them to ride in long skirts. By the early 20th century, bicycles were mass-produced and became affordable for the working class, leading to a boom in cycling as both transport and leisure.
❓ 1880년대의 '안전 자전거'가 이전 모델들보다 더 인기를 끌게 된 이유는 무엇인가?
A. 그것은 나무 바퀴가 달려 있었고 브레이크가 없었다.
B. 프랑스의 대장장이에 의해 발명되었습니다.
C. 체인 구동 방식과 안정성을 높이기 위한 동일 크기의 바퀴를 갖추고 있었습니다.
D. 대량 생산되어 노동 계층에게 저렴했다.
✅ 正确答案
It had a chain drive and equal-sized wheels for better stability.