Today we're going to discuss the history of the bicycle. Although many people think of the bicycle as a relatively modern invention, its origins actually date back to the early 19th century. The first two-wheeled vehicle, called a 'hobby horse,' was invented in 1817 by a German baron. It had no pedals; riders pushed themselves along with their feet. Later, in the 1860s, pedals were added to the front wheel, leading to the famous 'penny-farthing' with its huge front wheel. However, it wasn't until the 1880s that the chain-driven bicycle with two equal-sized wheels was developed, making riding safer and more efficient. This design became the basis for modern bicycles.
❓ 19世纪80年代开发的自行车的一个关键特征是什么?
A. A. 它有一个非常大的前轮。
B. B. 它由链条驱动,并且拥有大小相同的轮子。
C. C. 它没有踏板,靠脚蹬地推动前进。
D. D. 它是由一位德国男爵发明的。
✅ 正确答案
B. It was powered by a chain and had equal-sized wheels.