第六部分：完型填空 （每题1分，共15分) 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，

第六部分：完型填空 (每题1分，共15分) 阅读下面的短文，文中有15处空白，每处空白给出了4个选项，请根据短文的内容从4个选项中选择1个最佳答案，并涂在答题卡相应的位置上。

难度C级

A health profile (概貌)

A health profile is a portrait of all of the factors that influence your health. To draw your health profile, you will __51__ what diseases run in your family, what health hazards you may be exposed to __52__ work, how your daily __53__ compares to the recommended standards, how much time per week you __54__ exercising and what type of exercise you engage __55__, how stressful your work and family environments are, what kinds of illnesses you get regularly, and __56__ or not you have any one of a number of addictions. __57__ this portrait, you should have a checkup to determine how your blood, heart, and lungs are functioning. This checkup will serve __58__ a baseline, to which you can then compare later tests.

__59__ this profile is thoroughly drawn, you can begin to think about setting health priorities based __60__ your particular portrait. For example, if you drink two martinis(马提尼酒) every evening, have a high-stress __61__, are overweight, smoke a pack of cigarettes a day, and use marijuana (大麻烟)occasionally on weekends, you should quit smoking first, followed __62__ losing the excess weight, reducing the stress of your job, giving up your marihuana habit, and then finally giving some __63__ to those martinis if you want to prevent first cancer, and then heart disease. Even for the youthful working person who has never been sick a day in his life, who is __64__ excellent health, a good look at all health habits and at work and home environments any suggest changes that will __65__ him in the future.

第51题：

A. know B. have known C. need know D. need to know