Question 15 is based on the passage you have just heard.

Passage Two

听力原文

        A recent study overturned what we think we know about lying. Most of us have a theory about how to tell if someone is telling a lie. (12) [We may develop that theory from observations of those people we know well and see regularly.] But we tend to generalize what we gather from that unscientific daily research and make it a universal theory. So we might imagine that liars have evasive eyes, or the opposite, they simply stare at you. Or perhaps it is more generally nervous behavior we associate with lies. (12) [Whatever the particular theory, it’s usually based on close observation of people we know.] 

        And we get lots of practice. On average, we’re lied to some 200 times per day. (13) [These are mostly harmless lies,] but lies nonetheless.

        But there’s a problem with our theories, even though they’re based on all this observation. (14) [The average person—you and me—tested rigorously on how well we detect lies fails to do better than chance.] That’s well established over many studies, and lots of attempts by researchers to work out reliable ways to detect lies. It’s even relatively easy to fool lie detectors, the gold standard of lie detection, by training yourself in breathing techniques and symptom suppression.

        Is there any way to get better at detecting lies? The new research offers some surprising advice. (15) [Stop looking and listen instead.] It turns out that if we’re unable to see the face, but rather focus on the voice of the person in question, our accuracy rate improves considerably.

15. What advice does the new research offer regarding lie detection?（关于测谎，这项新研究提供了什么建议？）

解析：B。录音后面部分提到一个问题：有什么方法可以更好地分辨谎言（detecting lies）吗？接着给出一项新研究（new research）的建议（advice）：不要看，要去听（listen）。B项符合题意，故为正确答案。

错项排除：录音后面提到新研究给出的建议是“不要看，要去听”，A项和D项都与看有关，故均可排除。C项利用录音中的breathing techniques进行干扰，但录音说的是通过练习呼吸技巧和抑制说谎的表现，甚至可以相对容易地骗过测谎仪，由此可知，测量呼吸频率并不能识破谎言，故C项排除。