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  91
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
【S5】
选项
答案C
解析 语义衔接题。句子结构表明空格处为插入成分，根据选项中所给的单词，可以作插入成分的只有however和whatever两个单词，结合句意“据此就得出结论说食物刺激大脑产生毒瘾是完全错误的”，可以推断出空格处应填入表示转折关系的副词。故however“然而，不过”符合句意。
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大学英语四级

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