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 against the ground. Later, the penny-farthing, with its huge front wheel, became popular in the 1870s. However, it was dangerous because riders sat high above the ground. The safety bicycle, introduced in the 1880s, featured two wheels of equal size and a chain drive, making it much safer and more practical. This design quickly became the standard and led to a cycling boom in the 1890s. Interestingly, the safety bicycle also played a role in women's liberation, as it gave women greater mobility and independence.
❓ 根据讲座内容,安全自行车相较于早期型号的一大优势是什么?
A. 它有一个更大的前轮,以便实现更快的速度。
B. 由于其等大的车轮和链条传动,它更加安全。
C. 这是第一辆装有脚踏板的自行车。
D. 它更轻便,更容易携带。
✅ 正确答案
It was safer due to its equal-sized wheels and chain drive.