Good morning, class. Today we're going to discuss the history of the bicycle. Now, you might be surprised to learn that the first bicycle, invented in the early 19th century, had no pedals. It was called a 'hobby horse' and was pushed along by the rider's feet. Later, in the 1860s, pedals were added to the front wheel, creating the 'penny-farthing' with its huge front wheel. However, cycling became truly popular only after the invention of the safety bicycle in the 1880s, which had two equal-sized wheels and a chain drive. This design made it much safer and easier to ride, especially for women, who could now cycle in their everyday clothing.
❓ 根据讲座内容,是什么让骑行真正变得流行起来?
A. 将踏板安装到前轮上
B. 带链条传动的安全自行车的发明
C. hobby horse(竹马)的引入
D. 开发更轻质的车架材料
✅ 正确答案
The invention of the safety bicycle with a chain drive