Recreational runner Carrie Johnston usually doesn’t feel hungry after a go

游客2024-10-21 25

问题    Recreational runner Carrie Johnston usually doesn’t feel hungry after a good sweat. Exercise 【C1】______ Johnston’ s appetite, but she knows she needs to 【C2】______ lost calories following a workout.
   "When I come home from a good run, I force myself 【C3】______ supper," says Johnston, a dietitian at McMaster University in Hamilton. 【C4】______  Johnston says many female athletes let good eating habits go and riskhealth 【C5】______ thinness. Johnston, who works in the bone-marrow transplant unit at McMaster, has a background in sports 【C6】______ . In 1997, while a student at the University of Guelph, she worked with Prof. Heather Keller on a study for her 【C7】______ on the eating habits of female 【C8】______ .
   The 【C9】______ person with eating disorders is driven by a desire to look svelte, says Johnston. But her study focused on athletes who eat less to lower weight and body fat 【C10】______ the belief it will improve 【C11】______ .
   The study involved 【C12】______ . 22 elite female athletes between 【C13】______ 15 and 25 over three months. "Years ago when we didn’t know any better it was thought that being lighter meant running 【C14】______ ," says Johnston, adding that’s still the mentality of many competitive runners, as well as other 【C15】______ like gymnasts and swimmers. Job. nation’s study 【C16】______  consumed 400 to 700 fewer calories daily than recommended for their 【C17】______ training.
   Even when training more, as they got closer to competing, they failed to 【C18】______ more food fuel for energy. Initially, race 【C19】______ tend to improve when a runner loses some weight, but then they hit a peak and 【C20】______ , says Johnston. [br] 【C11】

选项 A、act
B、action
C、demonstration
D、performance

答案 D

解析 performance此处表示(运动员的体能和竞技)“表现”act和action作名词意为“行为，行动”，前者常常被看作是瞬时的或一会儿、单个的动作或行动，后者通常指行为占用时间，涉及更多的步骤：demonstration论证，证明。

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