In today's lecture, we'll discuss the history of the bicycle. The first two-wheeled vehicle, called the draisine, appeared in 1817 in Germany. It had no pedals; riders pushed their feet against the ground. In the 1860s, pedals were added to the front wheel in France, creating the velocipede. However, it was nicknamed the 'boneshaker' due to its rigid frame and rough ride. Later, in the 1880s, the safety bicycle was introduced in England with a chain drive and two equal-sized wheels, making it much more stable. This design became the basis for modern bicycles.
❓ 1880년대에 도입된 안전 자전거의 주요 장점은 무엇이었나요?
A. 좌석이 더 편안했습니다.
B. 더 가볍고 휴대하기 쉬웠다.
C. 더 안정적이었다. 왜냐하면 바퀴 크기가 동일하고 체인 구동 방식이었기 때문이다.
D. 그것은 이전 모델들보다 더 빠르게 이동할 수 있었다.
✅ 正确答案
It was more stable because of its equal-sized wheels and chain drive.