Weighing yourself regularly is a wonderful way to stay aware of any significant weight fluctuations. (1)_____, when done too often, this habit can sometimes hurt more that it (2)_____.

    As for me, weighing myself every day caused me to shift my focus from being generally healthy and physically active to focusing (3)_____ on the scale. That was bad to my overall fitness goals. I had gained weight in the form of muscle mass, but thinking only of (4)_____ the number on the scale, I altered my training program. That conflicted with how I needed to train to (5)_____ my goals.

    I also found that weighing myself daily did not provide an accurate (6)_____ of the hard work and progress I was making in the gym. It takes about three weeks to a month to notice any significant changes in your weight (7)_____ altering your training program. The most (8)_____ changes will be observed in skill level, strength and inches lost.

    For these (9)_____, I stopped weighing myself every day and switched to a bimonthly weighing schedule (10)_____. Since weight loss is not my goal, it is less important for me to (11)_____ my weight each week. Weighing every other week allows me to observe and (12)_____ any significant weight changes. That tells me whether I need to (13)_____ my training program.

    I use my bimonthly weight-in (14)_____ to get information about my nutrition as well. If my training intensity remains the same, but I’m constantly (15)_____ and dropping weight, this is a (16)_____ that I need to increase my daily caloric intake.

    The (17)_____ to stop weighing myself every day has done wonders for my overall health, fitness and well-being. I’m experiencing increased zeal for working out since I no longer carry the burden of a (18)_____ morning weigh-in. I’ve also experienced greater success in achieving my specific fitness goals. (19)_____ I’m training according to those goals, not the numbers on a scale.

    Rather than (20)_____ over the scale, turn your focus to how you look, feel, how your clothes fit and your overall energy level.

答案精析：空后为that引导的同位语从句，解释说明空处所填词。结合句意：如果训练强度不变，但我不断地感到饥饿，并且体重下降，这是我需要增加日常卡路里摄入量的_____。可见前半句引出了后半句，只有C选项最符合句意。

错项排除：A、B、D代入原文不符合句意，故排除。

长难句分析：If my training intensity remains the same, but I’m constantly hungry and dropping weight, this is a sign that I need to increase my daily caloric intake.

本句句子主干为this is a sign，为主系表结构，后面that引导同位语从句，补充说明sign。前面If引导的条件状语从句中包含由转折连词连接的两个分句，前一个分句为主系表结构，but后的分句是and连接的并列句。

句意为：如果我的训练强度保持不变，但我不断感到饥饿，并且体重下降，这表明我需要增加日常卡路里的摄入量。