Question 14 is based on the passage you have just heard.

        (12) [Public interest was aroused by the latest discovery of a changed gene in obese mice. ]The news was made known by Rockefeller University geneticist Jeffrey Friedman. The researchers believe this gene influences development of a hormone that tells organism how fat or full it is. (13) [Those with the changed gene may not sense when they have eaten enough or if they have sufficient fatty tissue, and thus can’t tell when to stop eating. ]

        The researchers also reported finding a gene nearly identical to the mouse obesity gene in humans. The operation of this gene in humans has not yet been demonstrated, however. (14) [Still, professionals like University of Vermont psychologist Esther Rothblum reacted enthusiastically, “This research indicates that people really are born with a tendency to have a certain weight, just as they are to have a particular skin color or height.” ]

        Actually, behavioral geneticists believe that less than half of the total weight variation is programmed in the genes, while height is almost entirely genetically determined. Whatever role genes play, Americans are getting fatter. A survey by the Center for Disease Control found that obesity has increased greatly over the last 10 years. (15)[ Such rapid change underlines the role of environmental factors like the abundance of rich foods in Americans’ overeating. ]The Center for Disease Control has also found that teens are far less physically active than they were even a decade ago.

        Accepting that weight is predetermined can relieve guilt for overweight people. But people’s belief that they cannot control their weight can itself contribute to obesity.

14. What does University of Vermont psychologist Esther Rothblum say?（佛蒙特大学心理学家埃丝特·罗斯布卢姆说了什么？）

解析：C。录音中埃丝特·罗斯布鲁姆说到：这项研究表明，人们确实天生就有一定的体重倾向，就像他们天生就有特定的肤色或身高一样。C项整句属于原句复现，故为正确答案。

错项排除：录音中只是说在人体内发现了一种与老鼠肥胖基因几乎相同的基因，但并没有把人类的肥胖基因数量与老鼠进行对比，故A项排除。录音中提到了half of the total weight variation，但只是说行为遗传学家认为，在决定体重差异的因素中，基因占比不到一半，并不是说这部分基因可以控制，故B项排除。D项内容只是客观事实，并非埃丝特·罗斯布鲁姆所说的话，故排除。