61. The underlined expression “stomach it” in Paragraph 1 most probably means “______”. ( )
- A. digest the meal easily
- B. manage without breakfast
- C. decide wisely what to eat
- D. eat whatever is offered
答案：B
答案句：For those who can stomach it, working out before breakfast may be more beneficial for health than eating first, according to a study of meal timing and physical activity. … The implication of these results is that to gain the greatest health benefits from exercise, it may be wise to skip eating first.
参考译文：对于那些能忍受（空腹锻炼）的人来说，根据一项关于进餐时间和身体活动的研究，早餐前锻炼可能比先吃饭更有益于健康。… 这些结果表明，为了从锻炼中获得最大的健康益处，明智的做法可能是先不吃早餐。
定位线索：题干“stomach it”→答案句首句“stomach it”；文中“skip eating first”对应选项B“manage without breakfast”；“working out before breakfast”暗示空腹锻炼。
解析：题干要求猜测“stomach it”的含义。答案句首句提到“working out before breakfast”，末句明确说“it may be wise to skip eating first”，即不吃早餐，这与选项B“manage without breakfast”（设法不吃早餐）一致。A项“digest the meal easily”与原文“skip eating”矛盾；C、D项均未涉及空腹锻炼，属于无中生有。
62. Why were the 10 people chosen for the experiment? ( )
- A. Their lifestyles were typical of ordinary people.
- B. Their lack of exercise led to overweight.
- C. They could walk at an average speed.
- D. They had slow metabolic rates.
答案：A
答案句：They first found 10 overweight and inactive but otherwise healthy young men, whose lifestyles are, for better and worse, representative of those of most of us.
参考译文：他们首先找到了10名超重、不活跃但其他方面健康的年轻男性，他们的生活方式，无论好坏，都代表了我们大多数人的生活方式。
定位线索：题干“Why were the 10 people chosen”→答案句“They first found 10 overweight and inactive...”；文中“representative of those of most of us”对应选项A“typical of ordinary people”。
解析：题干问选择这10人的原因。答案句明确指出他们的生活方式“representative of those of most of us”，即代表大多数人，与选项A“typical of ordinary people”（典型的普通人）同义。B项“lack of exercise led to overweight”因果颠倒，原文只说超重且不活跃；C项“walk at an average speed”是实验要求，非选择原因；D项“slow metabolic rates”是测试结果，非选择标准。
63. What happened to those who ate breakfast before exercise? ( )
- A. They successfully lost weight.
- B. They consumed a bit more calories.
- C. They burned more fat on average.
- D. They displayed higher insulin levels.
答案：B
答案句：On the other hand, they burned slightly more calories (卡路里), on average, during the workout after breakfast than after fasting.
参考译文：另一方面，他们在早餐后锻炼时平均消耗的卡路里略多于空腹锻炼时。
定位线索：题干“ate breakfast before exercise”→答案句“after breakfast”；文中“burned slightly more calories”对应选项B“consumed a bit more calories”；“slightly”对应“a bit”。
解析：题干问早餐后锻炼发生了什么。答案句明确说“burned slightly more calories”，即消耗更多卡路里，与选项B“consumed a bit more calories”完全对应。A项“lost weight”原文未提及；C项“burned more fat”与原文相反，原文说空腹时燃烧更多脂肪；D项“higher insulin levels”原文未提及。
64. What could be learned from the research? ( )
- A. A workout after breakfast improves gene performances.
- B. Too much workout often slows metabolic rates.
- C. Lifestyle is not as important as morning exercise.
- D. Physical exercise before breakfast is better for health.
答案：D
答案句：The implication of these results is that to gain the greatest health benefits from exercise, it may be wise to skip eating first.
参考译文：这些结果表明，为了从锻炼中获得最大的健康益处，明智的做法可能是先不吃早餐。
定位线索：题干“learned from the research”→答案句“The implication of these results”；文中“skip eating first”对应选项D“before breakfast”；“greatest health benefits”对应“better for health”。
解析：题干问从研究中能得出什么结论。答案句是研究结论，明确指出“skip eating first”（先不吃早餐）能获得最大健康益处，与选项D“Physical exercise before breakfast is better for health”一致。A项“after breakfast improves gene performances”与原文相反，原文说空腹时基因更活跃；B项“too much workout slows metabolic rates”原文未提及；C项“lifestyle is not as important”原文未比较两者重要性，属于无中生有。