45. D。 细节理解题。根据文章倒数第二段“Fitness results in completing the tasks of daily living, working a full day, and still having energy to participate in recreational activities.”可知，有了健康的体魄就会有更充足的精力来工作和休闲。

44. A。 推理判断题。从第一段的“We disabled can - and should be - as active as anyone else.”可以判断作者自己也是个残疾人。

43. B。 细节理解题。根据第二段第二句“Experts recommend that spending as little as 30 minutes each day on physical activities provides benefits including lower risk of heart disease, cancer, high blood pressure, diabetes and other serious diseases.”可知，A、C和D三项都是在描述运动的好处，而根据文章第三段最后一句可知B选项说的是水的作用，因此不正确。

42. D。 猜测词义题。根据后面的“...which is confirmed by scientists.”可知，每日八杯水的作用已经被科学家证实了，因此选D项。

41. B。 写作目的题。根据最后一段“So let’s all get out there and do some exercise!”可知，作者的写作目的是号召大家运动起来，因此选B项。

45. What do we learn from the passage?

　　 A. Water can provide nutrients for us to improve skin tone.

　　 B. Extreme sports have little to do with normal people.

　　 C. One can enjoy recreation and the pleasure of life by doing extreme games.

　　 D. We can have more energy to do things in our everyday life if we strengthen our physical well-being.

答案：

作者在观看残疾运动员的表演后，充分认识到运动对人的好处。当然，运动并不一定为了成为有竞争力的运动员，但它可以强身健体，降低疾病的发生率。除了运动外，健康的生活方式也需要良好的饮食习惯。

44. The author is most probably a (n) _________.

　　 A. disabled man　　　　 B. doctor

　　 C. coach　　　　　　　　 D. athlete

43. According to the passage, physical activities bring benefits to humans EXCEPT __________.

　　 A. lower risk of heart disease　

　　 B. better muscle control

　　 C. less chance of getting diabetes

　　 D. less chance of having high blood pressure

42. What does the underlined word "documented" mean in Paragraph 3 ?

　　 A. Written.　　　　　　 B. Encouraged.　　　　　　 C. Overlooked.　　　　　　 D. Proven.

41. What's the author's purpose of writing the passage?

　　 A. He wants to ask people to respect the disabled.

　　 B. He intends to call on people to do exercise.

　　 C. He wants people to know the importance of exercise for the disabled.

　　 D. He wants to explain what healthy lifestyles are.