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  3. The Two Types of Fat Fat is a concentrated source of energy. / It can be divided into two main groups—saturated and unsatura

The Two Types of Fat Fat is a concentrated source of energy. / It can be divided into two main groups—saturated and unsatura

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答案 The Two Types of Fat Fat is a concentrated source of energy. / It can be divided into two main groups—saturated and unsaturated. / Saturated fat is generally solid at room temperature and is usually from animal sources. / It’s found in butter, hard margarine, cheese, whole milk and anything that contains these ingredients, / such as cakes, chocolate, biscuits, pies and pastries. / It’s also the white fat you can see on red meat and underneath poultry skin. / Unsaturated fat is usually liquid at room temperature / and generally comes from vegetable sources. / Unsaturated vegetable oils are generally a healthier alternative to saturated fat / and can be found in sesame, sunflower, soya, olive oil, soft margarine / and in foods such as oily fish, including sardines and salmon. / The value of saturated and unsaturated fat in our diets isn’t fully understood yet, / but generally, eating too much saturated fat / is associated with an increased risk of heart disease. / Where possible, you should ensure that the fat you eat is unsaturated. /
解析     两类脂肪
   脂肪是能量的主要来源，它有饱和与不饱和两大类。饱和脂肪在常温下是固体，通常来源于动物。黄油、硬的人造黄油、奶酪、全脂牛奶和含有这些成分的其他食物都含有饱和脂肪。不饱和脂肪在常温下是液体，通常来源于植物。它比饱和脂肪更健康，含有这类脂肪的食物有：芝麻、向日葵、大豆、橄榄油等等。
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