Today we're going to discuss the history of the bicycle. The first bicycle, invented in the early 19th century, had no pedals; riders pushed their feet along the ground. Later, the 'penny-farthing' became popular in the 1870s, but it was dangerous due to its large front wheel. The modern safety bicycle, with two equal-sized wheels and a chain drive, emerged in the 1880s. This design made cycling much safer and more accessible, especially for women, who began using bicycles for leisure and transport. By the 1890s, cycling had become a worldwide craze.
❓ 「安全自転車」が以前のモデルよりも安全だった理由は何ですか？
A. A. ペダルがありませんでした。
B. B. それは大きな前輪を備えていた。
C. C. 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いた。
D. D. それは1880年代に発明されました。
✅ 正确答案
C. It had two equal-sized wheels and a chain drive.