阅读理解I teach economics at Harvard (哈佛大学) three times per week. Last Monday, at the beginning of class, I cheerfully asked my students how their weekend had been. One young man said that his weekend had not been so good. He had his wisdom teeth (智齿) removed. The young man then asked me why I always seemed to be so cheerful. His question reminded me of something I’d read somewhere before: “Every morning when you get up, you have a choice about how you want to approach life that day, ” I said. “I choose to be cheerful.”“Let me give you an example.”I continued. “In addition to teaching here, I also teach out at the community college, 17 miles down the freeway from where I live. A few weeks ago I drove 17 miles to that college. I left the freeway and turned onto College Drive. I only had to drive another quarter mile down the road to the college. But just then my car died. I tried to start it again, but the engine wouldn’t turn over. So I put my flashers (闪光灯) on, grabbed my books, and ran to the college.”“As soon as I got there I arranged for a tow truck (拖车) to meet me at my car after class. The secretary in the office asked me what has happened.‘This is my lucky day,’ I replied, smiling.”“Your car breaks down and today is your lucky day?”She was puzzled. “What do you mean?” “I live 17 miles from here,”I replied. “My car could have broken down anywhere along the freeway. It didn’t.it broke down in the perfect place: off the freeway, within walking distance of here. I’m still able to teach my class, and I’ve been able to arrange for the tow truck to meet me after class. If my car was meant to break down today, it couldn’t have been arranged in a more convenient way. ”secretary’s eyes opened wide, and then she smiled. I smiled back and headed for class.”the sixty faces in my economics class. Despite the early hour, no one seemed to be asleep.Somehow, my story had touched them. Or maybe it wasn’t the story at all. In fact, it had all started with a student’s observation that I was cheerful. 1. Why did the young man in the class feel sad on his weekend? A. Because he was ill in bed all day long. B. Because his car broke down on the way to hospital. C. Because he had his wisdom teeth pulled out. D. Because he had an accident on the way. 2. Which of the following is NOT mentioned as the reason why the author still felt lucky after his car broke down? A. His car broke down in the perfect place. B. He met a very helpful secretary in school. C.He has been able to arrange for the tow truck after class. D. He's still been able to teach his class without being late. 3. How did the secretary feel when she heard the author's explanation? A. Surprised and approving. B. Worried and nervous. C. Happy and excited. D.Disappointed and angry. 4. How did the students feel after they heard the author's story? A. They were bored. B. They were excited. C. They were impatient. D. They were moved. 5. Which is the best word to describe the author? A. Open B. Optimistic C. Pessimistic D. Alert