2. 外语
  3. A. abuse B. appreciated C. attracted D. linked E. mixture F. union G. perceived H. set I. merge J. disappear K. measured

A. abuse B. appreciated C. attracted D. linked E. mixture F. union G. perceived H. set I. merge J. disappear K. measured

admin2020-06-05  49
问题     A. abuse B. appreciated C. attracted D. linked E. mixture
    F. union G. perceived H. set I. merge J. disappear
    K. measured L. acquired M. affect N. estimated O. offspring
    Alcohol may taste sweeter if you were exposed to it before birth, suggests a study in rats. The findings may shed new light on why human studies have previously【C1】______fetal(胎儿的)alcohol exposure to increased alcohol【C2】______ later in life, and to a lower age at which a person first starts drinking alcohol.
    Alcohol’s taste is a(n)【C3】______ of sweet and bitter components. To test whether prenatal(产前的 )alcohol exposure could【C4】______ the perception of these components, Steven Youngentob at the State University of New York in Syracuse and John Glendinning at Columbia University in New York【C5】______ how eagerly rats consumed alcohol, sweet water or bitter water.
    They found that young rats whose mothers had consumed alcohol during pregnancy preferred alcohol and consumed more of the bitter water than the【C6】______ of mothers that didn’t consume alcohol. Rats that had been exposed to alcohol before birth also seemed to be more【C7】______ to the smell of alcohol.
    Prenatal exposure seems to reduce the【C8】______ bitterness of alcohol, making it seem sweeter, says Youngentob. Both of these differences seemed to【C9】______ once the rats reached adulthood— but only if they hadn’t tasted alcohol during their youth. If prenatally exposed rats did consume alcohol in their youth, these preferences seemed to become【C10】______ for life.
    "The take-home message is to keep kids away from alcohol for as long as possible—particularly if they have had prenatal exposure," says Youngentob.
【C7】
选项
答案C
解析 根据空格前的be动词和more，推断空格处可能需填入形容词或分词。上一句提到，在怀孕期间喝过酒的母老鼠生下的小老鼠更喜欢酒精，因此推断，出生前就接触过酒精的老鼠更易于受酒精气味的吸引。词库中的attracted“吸引”符合要求，be attracted to sth．意为“受到某事物的吸引”。
转载请注明原文地址:https://kaotiyun.com/show/hLCK777K
0

专业英语四级

相关试题推荐
随机试题
最新回复(0)