Today we're going to discuss the history of the bicycle. The first bicycle, invented in the early 19th century, was called a 'velocipede'. It had no pedals; riders pushed their feet against the ground to move. Later, in the 1860s, the 'penny-farthing' appeared, with a large front wheel and a small rear wheel. It was fast but dangerous. By the 1880s, the 'safety bicycle' was introduced, featuring two wheels of equal size and a chain drive. This design made cycling much safer and more accessible, leading to a boom in popularity among both men and women.
❓ What was a major advantage of the safety bicycle compared to earlier models?
A. A. It was lighter and easier to carry.
B. B. It had a chain drive and equal-sized wheels, making it safer.
C. C. It could be ridden without using hands.
D. D. It was the first model to have pedals.
✅ 正确答案
B. It had a chain drive and equal-sized wheels, making it safer.