Good morning, class. Today we're discussing the history of the bicycle. As you know, the first two-wheeled vehicle, called a draisine, appeared in 1817 and was propelled by pushing your feet against the ground. Later, in the 1860s, pedals were added to the front wheel, leading to the famous penny-farthing with its huge front wheel. However, it was dangerous because riders sat high above the ground. The major breakthrough came in 1885 when the safety bicycle was introduced, featuring two equal-sized wheels and a chain drive to the rear wheel. This design made cycling much safer and more practical for everyday use.
❓ Каким было главное преимущество безопасного велосипеда, представленного в 1885 году?
A. A. Он был легче предыдущих моделей.
B. B. У него было большее переднее колесо для скорости.
C. C. Это было безопаснее благодаря колёсам одинакового размера и цепному приводу.
D. D. Его можно было крутить педали, стоя.
✅ 正确答案
C. It was safer due to its equal-sized wheels and chain drive.