A young college student thought that he chose the wrong major (专业) at a common college, so he drank every day and didn't study at all. He became more and more upset.
But he was never1from Professor Yang's biology class. He liked the2. Besides, Yang's class was so interesting that he always listened carefully, never caring about3the other students were paying attention or not in class. Once he put a4in the homework he handed in, saying: "Professor, it is said that today's college students are cheaper than potatoes. Do you agree?"
That day Professor Yang5him after class. When he came, he found the professor at a table with a plate of food. They drank happily with their meal.
When they became half drunk, the professor6a small potato that was sprouting (发芽的). "Do you know how much this7?" he asked the young man. "It's soft but harmful.8will take it even if it's free." He then threw the potato away. The professor then showed him9potato. It was half the size of a football and perfectly round. "This potato is organic (有机的). It is not only large and fresh but also free of pollution. It is in high demand and quite expensive."
The young man was impressed by what he'd heard. "Be such a10" said the professor.
