《英语四级冲关预测试卷》是根据大学英语教学大纲和《大学英语四、四级考试改革方案（试行）》的要求及最新“大学英语四级考试（CET-6）试点考试样卷”编写而成。旨在使考生藉此熟悉大学英语新考纲的要求和新题型的变化，井通过大量的模拟训练和讲解辅导帮助考生在听、读、写、译等方面得到全面发展，使考生能够尽快适应新题型，顺利通过大学英语四级考试。
本试卷由8套全真模拟试題和紧随其后的答案评析构成。结构清晰、体系完整，完全适用大学英语四级考试的需求，有较强的针对性和实用性。本试卷还包括听力理解、阅读理解、完形填空、翻译、改错和写作等大学英语四级考试最新考试样卷所涉及的所有题型，考点涵盖了政治、经济、科技、文化、历史、气象、医学、海洋、科技等诸多方面；题材广泛、内容丰富、难度适中。

many calories if you focus on eating fruit and vegetables. And having a diet rich in these means youget plenty of vitamins, minerals, antioxidants and other nutrients essential for heart health.
The important message is that all adults should be aware of how much food they need to eat eachday for Optimal health, energy and weight.
Waist Size
Of all the ways to measure whether your weight is affecting the health of your heart, waist size isone of the best. An even more accurate calculation is your waist-to-hip ratio (measured by dividingyour waist circumference at its narrowest point by your hip circumference at its widest point) : A ratioof more than 0.90 in men or 0.85 in women shows central obesity and may indicate metabolicsyndrome, a group of risk factors that can accompany heart disease.
Fat cells are not just storage vessels for extra calories your body can't burn off. When body fat ispacked into your abdomen -- in and around your internal organs -- the fat cells release inflammatory( 炎症性的)chemicals and out-of-kilter( 不平衡的)levels of appetite-controlling proteins. The result isthat your risk of heart attack soars as inflammation speeds up atherosclerosis(动脉粥样硬化).。
In addition, your risk of insulin (胰岛素) resistance and metabolic (新陈代谢的) syndrome risesas inflammatory substances interfere with the way muscle and liver cells function, Meanwhile, yournatural appetite-suppressing system, is disrupted, leading to more overeating and more abdominal fat.
To check your waistline, wrap a tape measure around your abdomen, at or near your bellybutton. Keep it snug but not tight -- and don't pull your tummy in. In Asia, health risk for womenbegins to rise with a waist size of more than 80 centimeters.
And for the men, risk increases with a measurement of more than 90 centimeters. Check everytwo weeks.
Cholesterol (胆固醇) Counts
It is important to know not just your total cholesterol reading but also your levels of bad LDLcho
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