Today we're going to discuss the history of the bicycle. Surprisingly, the first bicycle, invented in the early 19th century, had no pedals. It was called a 'hobby horse' and was pushed along by the rider's feet. Later, in the 1860s, pedals were added to the front wheel. This design was known as the 'boneshaker' due to its uncomfortable ride. The real breakthrough came in 1885 with the 'safety bicycle', which had a chain drive and two equal-sized wheels. This made cycling much safer and more practical, leading to a boom in popularity among the general public.
❓ 1885年に導入された安全自転車の主な利点は何でしたか？
A. A. ペダルがなく、押しやすかった。
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. それは以前のモデルよりも軽く、速かった。
D. D. 前輪にペダルが付いた最初の自転車でした。
✅ 正确答案
B. It had a chain drive and equal-sized wheels, making it safer.