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阅读理解
With the National College Entrance Examination drawing closer, Senior 3 students will do almost anything to ensure success–even change what they eat．More than 70 percent of high–scoring students in last year’s exam admitted taking“brain food”, according to a survey conducted by the Shanghai Hercules Teens Research Center last August．However, only 30 percent of them said they would do this again．
Experts say that, as long as they eat properly, teens will have no problem getting enough nutrition from their daily food．
So what should you be eating?A good start is to eat foods that give you a variety of nutrients．For each meal, choose several kinds of food from each of these groups：
*Vegetables;
*Fruits;
*Bread, cereals, noodles and rice;
*Milk, yogurt and cheese;
*Meat, poultry, fish, fried beans and peas, eggs and nuts．
You can eat healthily without giving up your favourite foods, but you should limit the fat you eat to keep your cholesterol(胆固醇)low．Only animal fat provides cholesterol, which is known to cause heart problems．Most people like the taste of table sugar, so there are sweeteners“hidden”in many foods like soft drinks, cookies, and so on．
If you have high–energy needs, sweets can be a useful source of calories but they contain limited nutrients and can cause tooth decay (腐坏)．
When eating out, look for boiled or baked rather than fried foods．And try eating milk–based high–calcium (钙) foods instead of creamy items to reduce the fat and calories you take in．The teenage body changes quickly, so your attitude towards nutrition now can make a big difference to your health in years to come．
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