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  3. Alcohol may taste sweeter if you were exposed to it before birth, suggests a

Alcohol may taste sweeter if you were exposed to it before birth, suggests a

游客2024-10-05  33
问题     Alcohol may taste sweeter if you were exposed to it before birth, suggests a study in rats. The findings may shed new light(1)_____ why human studies have previously(2)_____ fetal(胎儿的) alcohol exposure to increased alcohol(3)_____ later in life, and to a(4)_____ age at which a person (5)_____ starts drinking alcohol.
    Alcohol’s taste is a(n)(6)_____ of sweet and bitter components. To(7)_____ whether prenatal (产前的)alcohol exposure could(8)_____ 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(9)_____ how eagerly rats consumed alcohol, sweet water(10)_____ bitter water.
    They found that young rats whose mothers had consumed alcohol during pregnancy(11)_____ alcohol and consumed more of the bitter water than the(12)_____ of mothers that didn’t consume alcohol. Rats that had been exposed to alcohol before birth also seemed to be more(13)_____ to the smell of alcohol.
    Prenatal exposure seems to reduce the(14)_____ bitterness of alcohol, making it seem(15)______, says Youngentob. Both of these differences seemed to(16)_____ once the rats reached adulthood—but (17)_____ if they hadn’t tasted alcohol during their youth. If prenatally exposed rats did consume alcohol in their youth, these preferences seemed to become(18)_____ for life.
    "The take-home message is to keep kids away(19)_____ alcohol for as long as possible—particularly(20)_____ they have had prenatal exposure," says Youngentob. [br] (18)
选项 A、clear
B、obvious
C、set
D、mature
答案 C
解析 前一句说如果在年幼时不接触酒精，差异会消失，而此处却说年幼时若接触酒精，可推断这种差异会保留下来，即“对酒的偏好会固定”，故选C。
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