Today's lecture is about the history of the bicycle. The first bicycle, invented in the early 19th century, had no pedals and was pushed along by the rider's feet. This design was called a 'hobby horse.' Later, in the 1860s, pedals were added to the front wheel, creating the 'velocipede.' However, it was not until the 1880s that the 'safety bicycle' with two equal-sized wheels and a chain drive became popular. This design made cycling much safer and more comfortable, leading to a bicycle boom in the 1890s. Interestingly, the safety bicycle also played a role in women's liberation, as it gave women greater mobility and freedom.
❓ 講義によると、1880年代に登場した安全自転車の主な利点は何でしたか？
A. A. より速い速度のために、前輪が大きくなっていました。
B. B. それはチェーン駆動で動力を得ており、同じ大きさの二つの車輪を備えていたため、より安全で快適でした。
C. C. それはペダルを備えた最初の自転車であり、ライダーが地面に触れずに移動できるようにした。
D. D. それは以前のモデルよりも軽くて安価であり、労働者階級にも手が届きやすいものとなった。
✅ 正确答案
B. It was powered by a chain drive and had two equal-sized wheels, making it safer and more comfortable.