2. 职称英语
  3. Perhaps like most Americans you have some extra pounds to 【S1】______ . You may e

Perhaps like most Americans you have some extra pounds to 【S1】______ . You may e

游客2024-02-18  24
问题 Perhaps like most Americans you have some extra pounds to 【S1】______ . You may even have tried a fad diet or two, but found yourself right back where you started. The key to weight loss is regular 【S2】______ activity. And surprisingly, you don’t have to give up eating or make the gym your second home to see long-term, 【S3】______ effects.
    Your body needs a certain amount of energy to maintain basic 【S4】______ such as breathing, blood circulation and digestion. The energy required to keep your organs functioning is referred to as the resting or basal metabolic rate.
    Any time you are active, 【S5】______ energy is required. It is obtained from glycogen and fat stored in the blood, liver, and muscles. The key to losing weight is to draw on the fat rather than on the carbohydrate reserves.
    Which of the two energy sources you use depends on the intensity and 【S6】______ of your activity. The higher the intensity, the more your body will pull from the stored carbohydrates. The lower the intensity, the more your body will 【S7】______ on fat as its fuel.
    Aerobic exercise is most 【S8】______ for weight loss. When you perform aerobic activities you 【S9】______ contract large muscle groups such as your legs and arms. Walking, running, rollerblading, swimming, dancing, and jumping jacks are all forms of aerobic activity.
    Surprisingly, if your aerobic activity is low to moderately intense and of long duration, you will bum more fat than if you had 【S10】______ in a short burst of high-intensity exercise. In short, a brisk 30-minute walk will burn fat while a 100-yard sprint will bum glycogen.

A positive        B additional         C duration          D effective
E shed            F physical           G food              H functions
I participated    J rely               K cut               L repeatedly
M uses            N little             O obvious [br] 【S7】
选项
答案 J
解析 结合句意“(活动的)强度越低，身体越______ 于脂肪作为其燃料”，该空应填入能和on 搭配的动词，J最符合文意
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