Today we're going to look at the history of the bicycle. The first bicycles, called 'hobby horses', appeared in the early 1800s. They had no pedals; riders pushed their feet along the ground. Then, in the 1860s, pedals were added to the front wheel, creating the 'velocipede'. However, it was very uncomfortable because of its solid rubber tires. The real breakthrough came in 1885 with the 'safety bicycle', which had a chain drive and two equal-sized wheels, making it much safer and faster. By the 1890s, bicycles had become hugely popular, especially among women, as they offered a new sense of freedom.
❓ 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. ソリッドラバータイヤを装備し、乗り心地がより滑らかでした。
B. チェーン駆動と等しい車輪により、より安全で高速でした。
C. ペダルが前輪に取り付けられた最初の自転車でした。
D. これにより、乗り手は地面に足を押し付けて進むことができました。
✅ 正确答案
It was safer and faster due to its chain drive and equal wheels.