Today we're going to discuss the history of the bicycle. The first bicycle, invented in the early 19th century, was called a 'velocipede'. It had no pedals; riders pushed their feet against the ground to move. Later, in the 1860s, the 'penny-farthing' appeared, with a large front wheel and a small rear wheel. It was fast but dangerous. By the 1880s, the 'safety bicycle' was introduced, featuring two wheels of equal size and a chain drive. This design made cycling much safer and more accessible, leading to a boom in popularity among both men and women.
❓ 安全自転車がそれ以前のモデルと比べて持っていた大きな利点は何でしたか？
A. A. それはより軽く、持ち運びやすかった。
B. B. それはチェーン駆動と同サイズの車輪を備えており、より安全でした。
C. C. 手を使わずに乗ることができた。
D. D. ペダルを備えた最初のモデルだった。
✅ 正确答案
B. It had a chain drive and equal-sized wheels, making it safer.