Today we're going to discuss the history of the bicycle. Although many people think of the bicycle as a relatively modern invention, its origins date back to the early 19th century. The first two-wheeled device, called a 'velocipede', was invented in Germany in 1817. However, it had no pedals; riders pushed their feet along the ground. Later, in the 1860s, pedals were added to the front wheel, creating the 'boneshaker'. The design improved over time, and by the late 1880s, the 'safety bicycle' with two equal-sized wheels and a chain drive became popular. This design is essentially what we use today.
❓ 1817년에 발명된 최초의 두 바퀴 장치의 주요 특징은 무엇이었나요?
A. A. 앞바퀴에 페달이 달려 있었다.
B. B. 그것은 두 개의 동일한 크기의 바퀴와 체인 드라이브를 갖추고 있었다.
C. C. 페달이 없었고, 라이더들은 발로 밀어서 움직였다.
D. D. 그것은 나무와 철로 만들어졌다.
✅ 正确答案
C. It had no pedals and riders pushed with their feet.