听力题 How many of you drink cola? Nearly everybody. Did you know that cola started out not as a soft drink but as a (36) 1for headache back in the late 1800'' s ? John S. Pamberton, a druggist from Atlanta, had (37) 2 for many months trying to find a for the common headache. He worked in his backyard, mixture and heating different combination of oils and (38) 3until he found one that seems promising. Pamberton (39) 4the mixture and began selling it in drugstores as a (40). 5syrup that the customer had to mix with water before drinking. Cola''s (41) 6from a syrup to a carbonated soft drink came about quite by accident. One day, a customer came into a drugstore (42) 7of a headache and asked for (43) 8 cola syrup. He wanted to take it right away. So he asked the clerk to mix the medicine while he waited. The clerk, instead of walking to the other end of the counter to get (44) 9, suggested mixing the syrup with soda water. The customer agreed, and after drinking it, (45) 10how good it tasted. The clerk continued offering the mixture and carbonated cola grew in popularity. Today carbonated colas are sold in most countries around the world. And although they no longer contain the (46) 11to kill headaches, they are still very refreshing.