Good morning, everyone. Today we're going to discuss the history of the bicycle. Now, you might think the bicycle was invented in the 19th century, and you'd be right. However, the first two-wheeled vehicle, called a 'draisine', appeared in 1817, invented by a German baron. It had no pedals; riders pushed their feet against the ground. Later, in the 1860s, pedals were added to the front wheel in France. But these early bicycles had wooden frames and iron wheels, making rides extremely bumpy. It wasn't until the 1880s that the 'safety bicycle' with a chain drive and two equal-sized wheels became popular, which is closer to what we ride today.
❓ 강의에서 언급된 최초의 두 바퀴 탈것들의 주요 단점은 무엇이었나요?
A. 그들은 너무 무거워서 탈 수 없었다.
B. 그들은 페달이 없었고 발로 밀어야 했다.
C. 그들은 쉽게 부서지는 나무 틀을 가지고 있었다.
D. 그것들은 오직 독일 남작들에 의해서만 사용되었다.
✅ 正确答案
They had no pedals and required pushing with feet.