Good morning. Today we're going to discuss the history of the bicycle. Now, many people think the bicycle was invented in the 19th century, but in fact, the first two-wheeled vehicle, called a 'velocipede', appeared in the early 1800s. However, it had no pedals and was pushed along by the feet. The real breakthrough came in the 1860s when pedals were added to the front wheel. This design, known as the 'boneshaker', was uncomfortable but popular. Later, in the 1880s, the 'safety bicycle' with a chain drive and two equal-sized wheels was introduced, making cycling much safer and more accessible to the general public.
❓ 19世纪80年代推出的安全自行车的主要优势是什么?
A. A. 这是第一辆带有脚踏板的自行车。
B. B. 它的座椅更舒适。
C. C. 对普通人来说,骑行更安全、更容易。
D. D. 它比早期型号更轻、更快。
✅ 正确答案
C. It was safer and easier for ordinary people to ride.