I always think of my father. I can describe him as if he were sitting next to me. I remember his smile, his eyes, and his blonde curly hair. I also __37__my father taking his medicine and following the doctor’s __38__diet. One day I asked him, “Why do you take the medicine and why are there so many things you can’t eat, Daddy?” He looked into my eyes and said, “ _39_ to worry about, dear.” Not long after that my father passed away.
I was nine years old then, so my mother didn’t tell me _40_ my father had died. I always wanted to know why he had left me. He had taken the medicine! He was young and _41_ ! Years later, I knew that he died of a heart disease（疾病）. And I always thought about doing something to help people like my father. I even _42_ that I would do everything to cure（治愈）the disease. That is what I want to do most in my life.
In 2006, I took part in a health program as a _43_ to achieve my dream. I spent four weeks taking classes at a medical school. Every day, I _44_ how doctors treated（治疗）diseases. I went to a hospital once a week, talking to the patients and comforting them. This was the most wonderful part because I saw the other side of medicine: the _45_ from doctors. From then on, every time I met people who were fighting against diseases, I would soon _46_ . I learned how some diseases can be stopped before they start.
I hope I can become a doctor and find a cure for the heart disease, and then another child will not go through the heartbreak of losing a family member.
37. A. see B. keep C. forget D. remember
38. A. strict B. healthy C. common D. balanced
39. A. Everything B. Something C. Anything D. Nothing
40. A. how B. why C. when D. where
41. A. strong B. friendly C. outgoing D. outstanding
42. A. guessed B. decided C. agreed D. found
43. A. key B. way C. note D. secret
44. A. heard B. taught C. showed D. watched
45. A. worry B. stress C. care D. gift
46. A. beat B. save C. join D. tell
其中43-46题最好给出少量解释！感激不尽