Good morning, class. Today we're going to discuss the history of the bicycle. Now, many people assume the bicycle was invented in the 19th century, but its earliest form, the draisine, appeared in 1817 in Germany. It had no pedals; riders pushed their feet against the ground. Later, in the 1860s, pedals were added to the front wheel in France. However, it wasn't until the 1880s that the chain-driven 'safety bicycle' with equal-sized wheels became popular, making cycling safer and more accessible, especially for women. This design is the basis for modern bicycles.
❓ 19世纪80年代推出的安全自行车的一个关键优势是什么？
A. 它比早期的型号更轻、更快。
B. 它为长途骑行配备了更舒适的座椅。
C. 对更广泛的人群来说，骑行变得更安全、更容易。
D. 这是第一辆将踏板安装在前轮上的自行车。
✅ 正确答案
It was safer and easier for a wider range of people to ride.