单项选择题

Traditional superstitions and beliefs (31) disappear altogether; they assume new forms and (32) to contemporary conditions. (33) in the 21st century, people may dismiss their forefather’s customs and practices (34) superstition, many are still current. A Friday which falls on the 13th of a month is widely feared as (35) , and so are spilling salt and walking (36) a ladder. Belief (37) the power of mascots is far from (38) ；the lucky rabbit’s foot, like the horseshoe, is a popular charm. Certain foods, too, (39) their ancient lore. Many people, for example, accept the old adage "an apple a day keeps the doctor away". One aspect of traditional (40) which is still very much (41) today is folk medicine. When the causes of illness were totally (42) , and disease seemed to (43) without any reason, it was often (44) to evil spirits taking over the body. To (45) the patient, the demons of disease must be driven put, and many "cures" were spells and charms intended to exorcise these. Until (46) modem limes, even "official" medicine was very unpleasant, with no anaesthetics or pain-killers, and a (47) success rate. Few people, in any case, could afford it, and most relied on folk healers and magic. There was an enormous range of herbal (48) , some of which have since been found to have actual healing properties. (49) were worn to ward off disease, and a wide variety of seemingly strange objects, such as church furnishings, were (50) with powers of healing.