2007职称英语（卫生类）模拟试题（二）

　　23. Paragraph 1 ________

　　24. Paragraph 2 ________

　　25. Paragraph 3 ________

　　26. Paragraph 4 ________

　　A. It is not beneficial for people to keep mentally active.

　　B. Intellectual activity can strengthen people's mental health regardless of their age.

　　C. Old people should engage in both mental and physical activities.

　　D. Old people only need to engage in physical activities individually.

　　E. People with an active mind are more cognitively healthy in their old age.

　　F. Many experts are putting the theory to work in their own lives.

　　27. If people are faced with information that gets them to think about things they are interested in, they will be________.

　　28. Many experts are putting the theory to work in their own lives because they are convinced of ________.

　　29. Such specific training as learning to memorize enormous amounts of information is of less interest than being able to ________.

　　30. Older people need to keep both ________.

　　A. physically and mentally active

　　B. be alert and receptive

　　C. engage in mental activities

　　D. the benefits of challenging the brain

　　E. beneficial and happy

　　F. maintain mental alertness

　　3.第四部分：阅读理解 第一篇

Vegetarian

　　A strict vegetarian is a person who never in his life eats anything derived from animals. The main objection to vegetarianism on a long-term basis is the difficulty of getting enough protein, the body-building elements in food. If you have ever been without meat or animal foods for some days or weeks, say, for religious reasons, you will have noticed that you tend to get physically weak. You are glad when the fast is over and you get your reward of a great meat meal.

　　Proteins are built up from approximately twenty food elements called “amino-acids”, which are found more abundantly in animal protein than in vegetable protein. This means you have to eat a great deal more vegetable than animal food in order to get enough of these amino-acids. A great deal of the vegetable food goes to waste in this process and from the physiological point of view there is not much to be said in favor of life-long vegetarianism.

　　The economic side of the question, though, must be considered. Vegetable food is much cheaper than animal food. However, since only a small proportion of the vegetable protein is useful for body-building purposes, a consistent vegetarian, if he is to gain the necessary 70 grams of protein a day, has to consume a greater bulk of food than his digestive organs can comfortably deal with. In fairness, though, it must be pointed out that vegetarians claim they need far less than 70 grams of protein a day.

　　Whether or not vegetarianism should be advocated for adults, it is definitely unsatisfactory for growing children, who need more protein than they can get from vegetable sources.

　　There is a lacto-vegetarian diet which includes milk and milk products. Meat and cheese are the best sources of usable digestible protein and next come milk, fish and eggs. Slow and careful cooking of meat makes it more digestible and assists in the breaking down of the protein content by the body. When cooking vegetables, however, the vitamins, and in particular the water-soluble vitamin C, should not be lost through over-cooking.