Today's lecture is about the history of the bicycle. The first bicycle, invented in the early 19th century, had no pedals; riders pushed their feet against the ground. Later, pedals were added to the front wheel, but this design was unstable. In the 1880s, the 'safety bicycle' with a chain drive and equal-sized wheels became popular, making cycling safer and more accessible. Interestingly, the bicycle's popularity soared in the 1890s, especially among women, as it offered a new sense of freedom. However, the rise of automobiles in the early 20th century led to a decline in bicycle use for transportation, though it remained a popular leisure activity.
❓ Điều gì đã làm cho 'xe đạp an toàn' trở nên phổ biến vào những năm 1880?
A. Nó có bộ truyền động xích và các bánh xe có kích thước bằng nhau, giúp an toàn hơn.
B. Nó rẻ hơn so với các mẫu trước đó.
C. Nó nhẹ hơn và dễ mang theo hơn.
D. Nó có bàn đạp gắn vào bánh trước.
✅ 正确答案
It had a chain drive and equal-sized wheels, making it safer.