单选题
Potentially offering a powerful new tool against
terrorism, researchers have found a novel way to detect deception: in the liar's
blushing face. The technique, described in the journal, Nature,
uses a thermal camera to detect sudden, involuntary shifts of blood flow in the
face. The system performed as accurately as a traditional polygraph, the
scientists report. Yet the camera can provide answers
instantly, and does not require a highly trained specialist to operate it or
interpret its results. This makes it far better suited than the polygraph for a
new, high-tech approach to security that is already raising the hackles of civil
libertarians: the screening of large numbers of citizens, at airports and other
sensitive are-as, who have done nothing wrong. "The next decade
is going to see the development of truly accurate lie detectors", said Stephen
M. Kosslyn, an expert on detecting lies and a professor of psychology at Harvard
University. The prototype, built by researchers at the Mayo
Clinic and Honeywell Laboratories in Minnesota, is at least 2 years from being
ready for general use. But other scientists said the discovery of previously
unknown physiological changes in the face was itself an important step
forward. "This is potentially very important work, which may
open a new window on the mind," said Kosslyn. Pushed by
technological advances, and with fresh interest since Sept. 11, the discovery is
part of a boom in the scientific study of deceit and its detection. Although the
lie remains a mysterious phenomenon, researchers in recent years have found a
number of new approaches that might replace the polygraph, from brain scans, to
subtle changes in eye movement, to sparks of electrical activity that signal a
person has seen a victim or a crime scene before. The new
finding, though, is remarkable for its simplicity. When a person tells a lie,the
team found, there is a sudden rush of blood to the area around the eyes,
according to the Mayo Clinic's Dr. James A. Levine. Although the change is not
ordinarily visible the blood warms the skin, causing bands of color to appear
through a camera sensitive to heat. The team devised a computer
program that can identify the telltale changes based on the camera images. In
testing at the U.S. Department of Defense Polygraph Institute,which trains
federal polygraph examiners, the device performed better than polygraphs,with 85
percent accuracy compared with 70 percent for the polygraph.
单选题
Compared with a traditional polygraph a thermal camera______.
A.can show accurate results
B.can easily be handled by anybody
C.is a high-tech approach
D.is used to fight against terrorism
【正确答案】
B
【答案解析】[解析] 本题的四个选项中，只有B项为正确答案。这可从文中第三段的“…does not require a highly trained specialist to operate it or interpret its results”推知，即与传统的测谎仪相比，它不必南高级专业人员操作或者诠释其结果。
单选题
The phrase "raising the hackles of..." (Line 3, Para. 3) most
probably means______.
单选题
A thermal camera is expected to detect deception by______.
A.showing the physiological changes in the liar's face
B.scanning the liar's brain and his/her whole body
C.catching the sudden movements of the liar's eyes
D.screening the sudden rush of the liar's blood pressure
【正确答案】
A
【答案解析】[解析] 本题的匹1个选项巾，只有A项为正确答案。这可从文中第五段的“other scientists said the discovery of previously unknown physiological changes in the face was itself an important step forward”推知，A项“显示说谎者面部的生理变化”正确。
单选题
With respect to the advances in studying lie detection scientists think
highest of______.
A.simplifying the entire process of detection
B.the mechanic design of thermal cameras
C.substituting new approaches for polygraph
D.the discovery that one blushes while telling lies
【正确答案】
D
【答案解析】[解析] 本题的四个选项中，只有D项为正确答案。这可从文中的“other scientists said the discovery of previously unknown physiological changes in the face was itself an important step forward”推知。
单选题
It can safely be inferred that Sept. 11______.
A.confirmed the failure of polygraph in detecting deception
B.made American begin to know about lie detection
C.gave a spur to the study of lie detection in the United States
D.triggered America's development of lie detectors
【正确答案】
C
【答案解析】[解析] 本题的四个选项中，只有C项为正确答案。这可从文中的“…with fresh interest since Sept．11，the discovery is part of a boom in the scientific study of deceit and its detection”推知，C项“推动了美国的测谎研究”正确。
单选题
According to the passage thermal cameras______.
A.have yet to be put to general use
B.have proved successful since 2 years ago
C.have to undergo tests at least half a year
D.have been playing a dominant role in lie detection
【正确答案】
A
【答案解析】[解析] 本题的四个选项中，只有A项为正确答案。这可从文中的“The prototype，…is at least 2 years from being ready for general use”推知，A项“还没有被普遍应用”正确。