Today we're going to discuss the history of the bicycle. Surprisingly, 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. This design was known as the 'boneshaker' due to its uncomfortable ride. The real breakthrough came in 1885 with the 'safety bicycle', which had a chain drive and two equal-sized wheels. This made cycling much safer and more practical, leading to a boom in popularity among the general public.
❓ 1885年推出的安全自行车的主要优势是什么？
A. A. 它没有踏板，更容易推动。
B. B. 它采用了链条传动和等大的车轮，使其更加安全。
C. C. 它比之前的型号更轻便、更快速。
D. D. 这是第一辆前轮装有脚踏板的自行车。
✅ 正确答案
B. It had a chain drive and equal-sized wheels, making it safer.