2. 外语
  3. Exercise has long been treated as the cure-all for everything that ails you. Supporters say you will lose weight and bring your

Exercise has long been treated as the cure-all for everything that ails you. Supporters say you will lose weight and bring your

admin2010-06-26  33
问题     Exercise has long been treated as the cure-all for everything that ails you. Supporters say you will lose weight and bring your blood pressure【C1】______ control by walking for 2 minutes a day. 【C2】______ it were so simple. While exercise has【C3】______benefits, many of its powers have been【C4】______. Consider what science has found before you【C5】______a fitness program as the solution【C6】______your health or weight concern.
    Exercise may reduce the risk of heart disease,【C7】______ the evidence is surprisingly mixed. Most of the heart protection appears to be realized by people who go【C8】______ being sedentary to being active. Yet the data from studies have not always been【C9】______, because those who exercise tend to be very【C10】______ those who do not. 【C11】______people are much less likely to smoke, and they’re thinner than their 【C12】______who are fond of sitting for a long time. As a result, it is impossible to know with confidence whether exercise prevents heart disease【C13】______ whether people who are less likely to get heart disease are also more likely to be exercising.
    Exercise cannot bring【C14】______ weight loss. For instance, lifting weights 【C15】______ muscles but will not make you【C16】______ more calories. Jack Wilmore, an exercise physiologist, calculated that the【C17】______ amount of muscle that men【C18】______after a 12-week weight-lifting program was 2 kilograms. That added muscle would increase the metabolic rate【C19】______ only 24 calories a day. If you want to lose weight, you have to diet【C20】______ exercise.
【C2】
选项 A、If only
B、Only if
C、Therefore
D、Although
答案A
解析 语法题。句意为：要是事实如此简单就好了。原句使用的是虚拟语气“itwere…”，由此可以断定空格处应填入虚拟语气的引导词。选项中只有If only可以引导虚拟语气，表示“要是……就好了”，故[A]为答案。Only if引导条件状语从句，表示“只有当……”。
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