2. 外语
  3. The holidays are a time for eating: pies at Thanksgiving, chocolates for Advent and overflowing gift baskets of cookies and cand

The holidays are a time for eating: pies at Thanksgiving, chocolates for Advent and overflowing gift baskets of cookies and cand

admin2013-09-24  29
问题     The holidays are a time for eating: pies at Thanksgiving, chocolates for Advent and overflowing gift baskets of cookies and candies through the New Year. If you’re having trouble saying no to the bounty of fat and sugar, give yourself a break: your willpower may be no【S1】_____for brain pathways that make overeating—much like drug-taking—feel so good.
    In one study by researchers at the University of Pennsylvania, mice that were fed a high-fat diet during the first 20 weeks of life and had become【S2】_____showed significant and lasting changes in brain areas【S3】_____in reward—making the brain less responsive to the same fatty foods. The researchers said the effects were【S4】_____to those seen in drug addiction. In another study from Concordia University in Montreal, researchers found that hungry rats sought heroin when food was not there.
    It wouldn’t be quite right to suggest,【S5】_____, that food works on the brain’s drug pathways. Rather, it’s the other way around. "Drug addiction is really【S6】_____some of these pathways that evolved to promote food【S7】_____for survival reasons," Ralph DiLeone, associate professor of psychiatry at Yale University.
    So is food really【S8】_____, like a drug? That’s still not clear, but it’s likely that compulsive overeating probably bears some【S9】_____to addiction. Anyone who’s gotten lost in the【S10】_____of polishing off a pint of mint chip ice cream knows how hard it can be to stop. A)obese F)kidnapping K)similar
B)competition G)digest L)addictive
C)however H)match M)whatever
D)intake I)addicted N)involved
E)pleasure J)resemblance O)hijacking
【S2】
选项
答案A
解析 语义推断题。由空格处的句子结构可知，空格处应为形容词形式。空格处的前半部分表示老鼠出生后的前20周内喂食高脂肪食物，然后会怎样。obese表示“肥胖的”，在给老鼠喂食20周的高脂肪食物后其身体变胖，所以obese符合原文意思。
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