In today's lecture, we'll discuss the history of the bicycle. The first bicycle, invented in the early 19th century, had no pedals; riders pushed their feet against the ground. This was called a 'hobby horse.' Later, in the 1860s, pedals were added to the front wheel, creating the 'penny-farthing.' However, these were dangerous due to their large front wheel. It wasn't until the 1880s that the 'safety bicycle' appeared, with two equal-sized wheels and a chain drive, making it much safer and more practical for everyday use.
❓ Согласно лекции, в чём заключалось главное преимущество безопасного велосипеда по сравнению с более ранними моделями?
A. У него было большее переднее колесо для скорости.
B. Он был безопаснее благодаря своей конструкции и цепной передаче.
C. Он был легче и удобнее для переноски.
D. Она требовала меньше обслуживания, чем пенни-фартинг.
✅ 正确答案
It was safer because of its design and chain drive.