Today we're going to discuss the history of the bicycle. The first bicycle, invented in the early 19th century, was called a 'velocipede'. It had no pedals; riders pushed their feet against the ground to move. Later, in the 1860s, the 'penny-farthing' appeared, with a large front wheel and a small rear wheel. It was fast but dangerous. By the 1880s, the 'safety bicycle' was introduced, featuring two wheels of equal size and a chain drive. This design made cycling much safer and more accessible, leading to a boom in popularity among both men and women.
❓ 안전 자전거가 이전 모델들에 비해 가졌던 주요 장점은 무엇이었나요?
A. A. 더 가볍고 휴대하기 쉬웠다.
B. B. 그것은 체인 구동 방식과 동일한 크기의 바퀴를 갖추어 더 안전했다.
C. C. 손을 사용하지 않고도 탈 수 있었다.
D. D. 페달을 장착한 최초의 모델이었다.
✅ 正确答案
B. It had a chain drive and equal-sized wheels, making it safer.