Good morning, class. Today we're going to discuss the history of the bicycle. Now, many people believe the bicycle was invented in the 19th century, but its origins actually go back further. In 1817, a German inventor named Karl Drais created a two-wheeled vehicle called the 'running machine' or 'draisine.' It had no pedals; riders pushed their feet against the ground to move. Later, in the 1860s, pedals were added to the front wheel in France. Interestingly, the first bicycles with chain drives and equal-sized wheels appeared in the 1880s, which made riding much safer and more efficient. So, while the basic idea is old, the modern bicycle we know today took over a century to develop.
❓ 关于最早的自行车,讲座中提到了什么?
A. A: 它是在19世纪发明的,带有踏板。
B. B:它有两个轮子,由骑行者用脚驱动。
C. C:它采用了链传动和等大的车轮。
D. D:它最初于19世纪60年代在法国研发。
✅ 正确答案
B: It had two wheels and was powered by the rider's feet.