Today we're going to discuss the history of the bicycle. Now, many people believe the bicycle was invented in the 19th century, but actually, early versions appeared in the 18th century. One of the first was the 'celerifere', invented in France in 1790. It had no pedals, and riders pushed their feet along the ground. Later, in 1817, a German inventor added a steering mechanism, which made turning easier. However, it wasn't until the 1860s that pedals were attached to the front wheel, creating the first true bicycle. Interestingly, the invention of the safety bicycle in the 1880s, with two equal-sized wheels and a chain drive, made cycling much safer and more popular, especially among women.
❓ 1880年代の安全自転車の主な改良点は何でしたか?
A. 转向機構を備え、より容易に曲がれるようになっていた。
B. それは同じ大きさの二つの車輪とチェーン駆動を備えており、より安全でした。
C. ペダルが前輪に取り付けられた最初の自転車でした。
D. 地面を押すのがより軽く、より簡単になりました。
✅ 正确答案
It had two equal-sized wheels and a chain drive, making it safer.