Good morning. Today we're going to discuss the history of the bicycle. The first bicycle, invented in the early 19th century, had no pedals and was propelled by the rider's feet pushing against the ground. It was called a 'hobby horse.' Later, in the 1860s, pedals were added to the front wheel, creating the 'velocipede.' However, this model was uncomfortable due to its rigid frame and wooden wheels. It wasn't until the 1880s that the 'safety bicycle' appeared, featuring two equal-sized wheels and a chain drive, which made riding much easier and safer. This design became the basis for modern bicycles.
❓ 安全自転車がそれ以前のモデルと比べて持っていた主な利点は何でしたか？
A. A. より滑らかな乗り心地のために、木製の車輪が付いていた。
B. B. ペダルを備えた最初のモデルでした。
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おり、より簡単で安全なものとなった。
D. D. それは、ライダーの足で地面を蹴って推進される可能性がある。
✅ 正确答案
C. It had two equal-sized wheels and a chain drive, making it easier and safer.