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  3. The unhealthy ingredients and low nutrition content of the food can make you less active and lazy, new research shows. No surpri

The unhealthy ingredients and low nutrition content of the food can make you less active and lazy, new research shows. No surpri

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问题     The unhealthy ingredients and low nutrition content of the food can make you less active and lazy, new research shows. No surprises there.【C1】________, what is more shocking is that the energy-weakening effects of a junk food diet can persist,【C2】________after you switch to a healthy【C3】________.
    Two groups of female rats were fed different diets by researchers for a six-month period.  One group ate unprocessed foods such as corn and fish meal【C4】________the other ate a diet【C5】________to imitate junk food; high in sugar, and lower in【C6】________. While understandably the group eating the ’junk food’ diet gained more weight than the other, they also【C7】________from fatigue and became less active and less【C8】________—ie: lazier. In fact, those rats fed junk food took twice as many, and longer breaks during tasks than the rats eating a healthy diet, even tasks which【C9】________rewards.
    What is even more【C10】________is that switching these rats back onto a nutritious diet at the end of six months for nine days didn’t seem to reverse their weight gain or their ’learnt’ laziness. This could suggest that while an【C11】________case of bad food—say on holiday, will not have too much of a【C12】________effect if you generally eat a good diet and lead a healthy lifestyle. But those who eat a poor diet【C13】________the long term may actually become lazy and fatigued, as well as gaining weight and suffering the health consequences【C14】________being overweight.
    The research shows that switching【C15】________a healthy diet in the short term is unlikely to be【C16】________to reverse any of the side effects of a diet high in junk food. "Overweight people are often regarded as lazy and lacking【C17】________," says Blaisdell, a professor of psychology at UCLA "We【C18】________our results as suggesting that the idea commonly【C19】________in the media that people become fat because they are lazy is wrong. Our data suggest that diet-induced obesity is a cause,【C20】________an effect,, of laziness. Either the highly processed diet causes fatigue or the diet causes obesity, which causes fatigue."
【C14】
选项 A、defined as
B、associated with
C、combined with
D、assisted in
答案B
解析 长期饮食不健康的人很有可能变得懒惰、疲劳(1azy and fatigued)、体重增加(gaining weight)，还要承担因此而产生的后果(consequences)。此空格需填入的短语与being over weight构成consequences的后置定语，说明两者的关系。B项associated with“与……有关”，表明饮食不健康与超重有关。A项defined as“定义为”，而consequences是复数名词，此项既不符合语法，又不符合语义。C项combined with“与……结合”，多指为了某个目的将不同的人或物混合而成一个整体，不符合本题逻辑。D项assisted in“在某个方面帮助”与句意无关。
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