大学英语自学教程 上册 un16

[08:04.02]They soon lose interest in everything going on about them,
[08:06.66]他们很快对身边发生的一切都失去兴趣，
[08:09.30]and their resistance to illness becomes so low
[08:11.78]他们对疾病的抵抗力变得如此之小，
[08:14.26]that they are easily attacked by one illness after another.
[08:17.04]以致他们很容易接连不断地得病。
[08:19.83]Most of those who diet know that foods like rice,
[08:22.41]大部分节食的人都知道，像米饭、
[08:25.00]bread potatoes,cakes,sweets,fruits
[08:28.42]面包、土豆、蛋糕、糖果、水果
[08:31.84]and some vegetables contain carbohydrates, and so can make one fat.
[08:34.96]以及某些蔬菜这样的食物含有碳水化合物，所以能使人发胖。
[08:38.09]What they do not realize, however,
[08:40.16]然而他们没有认识到，
[08:42.24]is that carbohydratesare our bodies' main source of energy,
[08:44.97]碳水化合物是我们身体的主要能源，
[08:47.70]and that these foods also contain components
[08:50.08]并且这些食物还含有一些成分，
[08:52.45]essential for the composition of substances
[08:54.83]这些成分对构成保持身体健康
[08:57.21]that are needed to keep the body healthy.
[08:59.28]所需要的物质是必不可少的。
[09:01.36]As a result,they try to avoid eating these foods,
[09:03.99]因为他们不认识这一点，所以他们尽量避免吃这些食物，
[09:06.61]and consequently, they become weaker and less healthy.
[09:09.64]结果身体变弱，健康变差。
[09:12.67]They begin to have difficulty sleeping properly
[09:15.01]他们开始睡不好觉，
[09:17.35]and start to suffer from radical mood changes.
[09:19.69]并且情绪开始发生根本变化。
[09:22.02]In more serious cases,they even begin to show signs of mental illness.
[09:25.15]更为严重的情况是，他们甚至开始表现出精神病的征兆。
[09:28.27]It is strange enough that most strict diets
[09:30.45]很奇怪，大部分严格规定的食物中
[09:32.63]recommend artificial sweetenersto take the place of sugar
[09:35.36]都建议用人工甜味剂代替糖
[09:38.09]and other natural sweeteners.
[09:39.87]和其他的天然甜味剂。
[09:41.64]In fact, such artificial sweeteners actually increase one's appetite
[09:44.92]事实上，人工添加剂会增加人们的食欲，
[09:48.20]and lead to one's eating even mom than usual.
[09:50.63]使他们甚至比平常吃得还多。
[09:53.06]Of course, the fact that misguided forms of dieting resultin so many problems
[09:56.28]当然，训导的节食产生如此多的问题
[09:59.51]does not mean that no dieting is safeor all dieting is harmful to the health.
[10:03.08]并不意味着所有的节食都不安全或者所有的节食都对身体有害。
[10:06.64]Proper dieting can not only help a person me ugly excess fat,
[10:10.18]恰当的节食不仅能帮助一个人去掉难看的多余脂肪，
[10:13.72]but can also help him or her to keep it off
[10:16.36]并还能帮助他或她使减少的脂肪不会反弹，
[10:19.00]and to lead a more activehappier and healthier life.
[10:22.08]从而过一个更活跃、更幸福，更健康的生活。
[10:25.16]You might ask just what a proper diet is.
[10:27.34]你可能会问什么是恰当的节食。
[10:29.52]Well, simply expressed, a proper healthy diet is one that is well-balanced,
[10:32.91]简而言之，恰当的健康的节食就是平衡的节食，
[10:36.29]or, in other words, one that includes enough
[10:38.82]或者，换句话说，
[10:41.36]but not too many of the kinds of foods that provide the body
[10:44.58]这种饮食的食物种类不是过多，
[10:47.81]with the nutrients that it needs to function properly.
[10:50.15]而是足以提供给身体正常运行所需的营养。
[10:52.49]The most important of these nutrients are the macronutrients proteins,
[10:55.36]这些营养中最重要的是大量营养素：
[10:58.23]carbohydrates and fats.
[11:00.95]蛋白质、碳水化合物和脂肪。
[11:03.67]The body needs fairly large amounts of proteins and carbohydrates
[11:06.63]人体需要相当大量的蛋白质，
[11:09.60]for building material and energy.
[11:11.58]和脂肪构成人体的物质和能源。
[11:13.57]Meat, fish, eggs, milk, cream, and nuts all contain proteins
[11:17.94]肉，鱼，蛋，奶，奶油和果仁都含有蛋白质，
[11:22.32]and foods like rice, bread, potatoes, etc.contain carbohydrates.
[11:26.25]而像米饭、面包、土豆等一类的食物则都含有碳水化合物。
[11:30.18]The body needs fat to keep it from the cold
[11:32.61]人体需要脂肪酸来御寒
[11:35.04]and to provide a protective layer for the organs,