Question

Does the Body Burn Fat When You Are Hungry?

Your body stores fat as a way to help protect you against starvation if you can’t take in enough food. However, your fat reserve isn’t the first place your body goes for food. Instead, it reaches out for sugar for energy. 1.

Hunger is normally a reflection that your body has used up energy from recent food you ate and has moved onto getting energy from sugar in your blood. 2. The more sugar you take in, the more fuel your body has to use before it reaches out to the fat stores. If your body doesn’t have enough sugar to supply the energy it needs, it begins to burn fat when you’re hungry instead.

Missing meals and going hungry can change your metabolism (新陈代谢) so it stores fat instead of burning it. 3. However, if you skip meals for several days and severely lower your calorie (卡路里) intake, your body begins to store as much fat as possible.

4. Your body burns up sugar stored in your system and begins to burn fat as you continue to exercise. However, exercising when you’re hungry won’t help you burn fat faster. A recent study shows that the body burns the same amount of fat regardless of whether you are hungry when you exercise.

Staying hungry all day won’t necessarily help you burn fat, but cutting calories is key to losing weight. 5. Snack (吃点心) in between meals to keep your metabolism working all day, which helps it burn more fat than if it’s allowed to slow down when it’s not meal time. Snacking in between meals can help you control your meal sizes at meal time.

A. Exercise is key to burning fat.

B. You shouldn’t cut out food to cut calories.

C. This doesn’t happen in a day of missing meals.

D. Just being hungry doesn’t mean your body is burning fat.

E. If you take in less food than your body burns, you’ll lose weight.

F. Your body stores sugar in case you need it when you feel hungry.

G. Eat five or six small meals throughout the day instead of three large ones.

Answer

1.D

2.F

3.C

4.A

5.B

【解析】

本文是一篇说明文。主要讲述了人在饥饿的时候不会燃烧脂肪。

1.考查对上下文的理解及推理判断能力。根据上文可知，人饥饿时身体最先寻求作为能量的来源不是体内的脂肪储备而是体内储备的糖，故D选项Just being hungry doesn’t mean your body is burning fat. “仅仅是饿并不意味着你的身体在燃烧脂肪”符合语境，故选D。

2.考查对上下文的理解及推理判断能力。该空前一句说到“饥饿时你的身体开始从体内储备的糖中获得能量”，后一句说到“糖摄入得越多，你的身体在开始消耗脂肪储备前就有越多的食物可以使用”，故F选项Your body stores sugar in case you need it when you feel hungry. “你的身体会储备糖以防你饥饿的时候需要它”符合语境，故选F。

3.考查对上下文的理解及推理判断能力。该空后一句说到“然而，如果你连续几天不吃东西,严重减少热量的摄入，你的身体就会开始尽可能多地储备脂肪”，故C选项This doesn’t happen in a day of missing meals. “一天不吃东西，这种情况还不会发生”符合语境，故选C。

4.考查对上下文的理解及推理判断能力。该空后一句说到“当你持续锻炼的时候你的身体就会燃烧储存在你身体里的糖并开始燃烧脂肪”，由此可推断出，A项Exercise is key to burning fat. “锻炼是燃烧脂肪的关键”符合语境，故选A。

5.考查对上下文的理解及推理判断能力。该空前一句说到“一整天都保持饥饿不一定可以帮助你燃烧脂肪，但是减少热量是减重的关键”后一句说到“在两顿饭之间吃些点心可以帮助你燃烧更多的脂肪”，故B选项You shouldn’t cut out food to cut calories. “你不应该为了减少热量就减少食物”符合语境，故选B。