請依下文回答第 46 題至第 50 題：
Urban legends are an important part of popular culture, experts say, offering insight into our fears and the
state of society. They’re also good fun. “Life is so much more interesting with monsters in it,” says Mikel J.
Koven, a folklorist. “It’s the same with these legends. They’re just good stories.” Like the variations in the stories
themselves, folklorists all have their own definitions of what makes an urban legend. Academics have always
disagreed on whether urban legends are, by definition, too fantastic to be true or at least partly based on fact, said
Koven, who tends to believe the latter.
Urban legends aren’t easily verifiable, by nature. Usually passed on by word of mouth or in e-mail form, they
often invoke the famous clause—“it happened to friend of a friend”（or FOAF）that makes finding the original
source of the story virtually impossible. Discovering the truth behind urban legends, however, isn’t as important
as the lessons they impart, experts say. “The lack of verification in no way diminishes the appeal that urban
legends have for us,” writes Jan Harold Brunvand in “The Vanishing Hitchhiker: American Urban Legends and
Their Meanings.” “We enjoy them merely as stories, and tend to at least half-believe them as possibly accurate
A renowned folklorist, Brunvand is considered the pre-eminent scholar on urban legends. The definition of an
urban legend, he writes, is “a strong basic story-appeal, a foundation in actual belief, and a meaningful message or
moral.” Most urban legends tend to offer a moral lesson, Koven agreed, that is always interpreted differently
depending on the individual. The lessons don’t necessarily have to be of the deep, meaning-of-life, variety, he
Urban legends are also good indicators of what’s going on in current society, said Koven. “By looking at
what’s implied in a story, we get an insight into the fears of a group in society,” he said. Urban legends “need to
make cultural sense,” he said, noting that some stick around for decades while others fizzle out depending on their
relevance to the modern social order. It’s a lack of information coupled with these fears that tends to give rise to
new legends, Koven said. “When demand exceeds supply, people will fill in the gaps with their own information
as they’ll just make it up.” The abundance of conspiracy theories and legends surrounding 9/11, the war in Iraq
and Hurricane Katrina seems to point to distrust in the government among some groups, he said.
But urban legends aren’t all serious life lessons and conspiracy theories, experts say, with the scariest, most
plausible ones often framed as funny stories. Those stories can spread like wildfire in today’s Internet world, but
they’ve been part of human culture as long as there has been culture, and Brunvand argues that legends should be
around as long as there are inexplicable curiosities in life.
【題組】46 What is the main idea of this passage？
(A) Urban legends are all nonsense that we needn’t pay attention to.
(B) Urban legends have many levels of concepts and they will survive.
(C) Urban legends are a good way to escape from government control.
(D) Urban legends should not spread before the source of information is confirmed.