Today we're going to discuss the history of the bicycle. Surprisingly, the first bicycle, invented in the early 19th century, had no pedals. It was called a 'hobby horse' and was pushed along by the rider's feet. Later, in the 1860s, pedals were added to the front wheel. This design was known as the 'boneshaker' due to its uncomfortable ride. The real breakthrough came in 1885 with the 'safety bicycle', which had a chain drive and two equal-sized wheels. This made cycling much safer and more practical, leading to a boom in popularity among the general public.
❓ 1885년에 도입된 안전 자전거의 주요 장점은 무엇이었나요?
A. A. 페달이 없어서 밀기 더 쉬웠다.
B. B. 그것은 체인 구동 장치와 동일한 크기의 바퀴를 갖추고 있어 더 안전했습니다.
C. C. 그것은 이전 모델들보다 더 가볍고 빨랐다.
D. D. 앞바퀴 페달이 달린 최초의 자전거였다.
✅ 正确答案
B. It had a chain drive and equal-sized wheels, making it safer.