【答案解析】[听力原文] {{B}} Salt{{/B}} We do not know when man first began to use salt, /but we do know that it has been used in many different ways. / Historical evidence shows that people who lived over 3,000 years ago ate salted fish. / Thousands of years ago in Egypt, / salt was used to embalm the dead. / Stealing salt was considered a major crime during some eras of history. / In the 18th century', if a person was caught stealing salt, / he could be put in jail. / Salt was an important item on the table of royalty. / It was traditionally placed in front of the King when he sat down to eat. / In the early days in the U. S., salt was very scarce. / So the storekeeper of pioneer days was very careful with his salt. / in the modern world salt has many uses beyond the dining table. / It is used in making glass and airplane parts, /growing crops and killing weeds.