题目

有关合金的叙述正确的是( ) A．合金的导电性比成分金属强  B．合金的抗腐蚀性能都很好 C．合金的机械强度比各成分金属小  D．多数合金比成分金属熔点低，硬度大 答案：D阅读理解。     On some level, I always knew that I wanted to be a doctor-at least from the age of eight or ten years old, anyway.      Although my father wasn't a doctor, he made his own brand of "house calls. I followed him as he brought a plate of my mother's home cooking to an elderly man named Frank on all major holidays and when Frank was sick. As far as I know, their only connection was that Frank was an occasional customer at Dad's small gas station. Frank's home was a two-room house on the rough side of town with an old front porch (门廊) where you could fall if you weren't careful. Frank had no relatives and as far as I could tell, no other visitors either. Through his attitude of caring, my father was teaching me to be a doctor, although neither of us knew it at the time.      When I was 13, my father developed lung cancer. He brought home a diagram the doctor had drawn showing where his cancer was and told me that he was going to die. He asked me to take care of my mother when he was gone. I was an only child. He said he loved me on the night when he died.      When you're 13 and your father dies, you have some choices to make. You can use the situation as an excuse for letting your actions and grades go down, or you can honor his memory and try to do something positive with yourself. I focused my energy on my schoolwork and my goal of becoming a doctor. 1. What was the father's "own brand of 'house calls'"? A. His treatment for Frank's serious illness. B. Being kind to Frank. C. His attitude towards the author. D. His wish that his son would be a doctor. 2. The author did something to realize his dream to be a doctor when _____. A. Father helped Frank regularly B. Father developed lung cancer C. Father asked him / her to take care of Mother D. Father died 3. What influence did his father's death have on the author? A. The author began to think seriously about his career. B. The author was too sorrowful to go on studying. C. The author used the situation as an excuse to quit school. D. The author worked harder to achieve his goal of becoming a doctor. 4. Which of the following is TRUE according to the passage? A. Father taught the author how to be a doctor by making house calls on Frank. B. In return for Father's help, Frank usually came up at his gas station. C. The author had no sisters or brothers. D. The author was deeply influenced by Father's doctor who treated his cancer. 5. What's the best title for the passage? A. What Made Father Respectable B. What Led Me to Be a Doctor C. How to Help Strangers D. How to Deal with Death