Good morning, class. Today we're going to discuss the history of the bicycle. The first bicycle, invented in the early 19th century, was called a 'velocipede' and had no pedals. Riders pushed their feet against the ground to move forward. Later, in the 1860s, pedals were added to the front wheel, creating the 'boneshaker' due to its rough ride. By the 1880s, the 'safety bicycle' appeared with two equal-sized wheels and a chain drive, making it much safer and more popular. Interestingly, the bicycle's popularity also led to improvements in road surfaces and even influenced women's fashion, as women began wearing more practical clothing to ride.
❓ What was the main reason the 'safety bicycle' became more popular than earlier models?
A. A. It had a more comfortable seat.
B. B. It was cheaper to manufacture.
C. C. It had two equal-sized wheels and a chain drive, making it safer.
D. D. It was lighter and easier to carry.
✅ 正确答案
C. It had two equal-sized wheels and a chain drive, making it safer.