Today we're going to discuss the history of the bicycle. Now, many people think the bicycle was invented in the 19th century, but its earliest form, called the 'celerifere', appeared in France in the 1790s. However, it had no pedals or steering. Then, in 1817, a German inventor added a steering mechanism, but riders still had to push their feet along the ground. The first pedal-driven bicycle was developed in Scotland in 1839, but it was heavy and uncomfortable. It wasn't until 1885 that the modern 'safety bicycle' with equal-sized wheels and a chain drive became popular, making cycling accessible to a wider public.
❓ 1885年の安全自転車の主な改良点は、それ以前のモデルと比べて何でしたか？
A. A. 初めて操舵機構を備えていた。
B. B. それはペダルを備えた最初の自転車でした。
C. C. それは等しい大きさの車輪とチェーン駆動を特徴としていた。
D. D. それは以前の全バージョンよりも軽く、より快適でした。
✅ 正确答案
C. It featured equal-sized wheels and a chain drive.