Good morning, everyone. Today we're going to discuss the history of the bicycle. As you might know, the first bicycle-like invention appeared in the early 19th century, but it was called a 'hobby horse' and had no pedals. Riders pushed themselves along with their feet. Then, in the 1860s, pedals were added to the front wheel, creating the 'velocipede'. However, this design was uncomfortable and often called the 'boneshaker'. It wasn't until the 1880s that the 'safety bicycle' was introduced, with two equal-sized wheels and a chain drive. This design became hugely popular because it was much safer and faster than earlier models.
❓ 안전 자전거가 이전 모델들에 비해 가진 주요 장점은 무엇이었나요?
A. A. 더 편안한 좌석이 있었다.
B. B. 체인 구동과 동일한 크기의 바퀴 덕분에 더 안전하고 빨랐다.
C. C. 그것은 더 가볍고 휴대하기 쉬웠다.
D. D. 손을 사용하지 않고도 탈 수 있었다.
✅ 正确答案
B. It was safer and faster due to its chain drive and equal wheels.