Good morning, everyone. Today we're going to look at the history of the bicycle. The first bicycle, invented in the early 19th century, had no pedals. Riders pushed their feet against the ground to move forward. This was called a 'hobby horse.' Later, in the 1860s, pedals were added to the front wheel, creating the 'boneshaker,' which was very uncomfortable due to its wooden wheels and metal frame. By the 1880s, the 'safety bicycle' was introduced with two equal-sized wheels and a chain drive, making it much safer and more efficient. This design became the basis for modern bicycles. Interestingly, the popularity of bicycles also contributed to the women's rights movement, as it gave women greater personal mobility.
❓ '본셰이커' 자전거의 주요 문제점은 무엇이었나요?
A. A. 페달이 없어서 움직이기가 어려웠다.
B. B. 구조 때문에 매우 불편했습니다.
C. C. 그것은 크기가 다른 두 개의 바퀴를 가지고 있어 불안정했다.
D. D. 대부분의 사람들이 사기에는 너무 비쌌다.
✅ 正确答案
B. It was very uncomfortable because of its construction.