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Ⅰ.阅读理解 [话题：海底农场，相关事宜] An Italian company has created the world's first underwater farm.The station named Nemo's Garden consists of five biospheres(生物圈) fixed to the bottom of the sea off the coast of Savona, Italy.They're being used to grow strawberries, beans, garlic, and lettuce. “The main target of this project is to create other sources of plant production in areas where environmental conditions make it difficult to grow crops through traditional farming, including lack of fresh water, fertile soil, and extreme temperature changes，”said project spokesperson Luca Gamberini. The five biospheres, currently floating between depths of 18 and 36 feet, are constantly watched by Ocean Reef Group—a diving equipment company—from a control center on dry land.According to various news reports, the plants are watered by drips of water on the inner walls of the biospheres.With a constant temperature of 79 degrees day and night, and humidity(湿度) at around 83 percent, the conditions are ideal for plants to grow well.The high amount of carbon dioxide also encourages growth. Ocean Reef president Sergio Gamberini said he came up with the idea of growing plants underwater during a summer vacation in Italy.In his own words, he wanted to do something that's different and to show the beauty of the ocean.After two years of failed attempts, they finally were able to get these five biospheres working.Their success may lay the foundation for a new form of crop production that can be done without harming the environment. In fact, the biosphere seems to be attracting wildlife.Octopuses(章鱼) and endangered seahorses are taking shelter under the structure, while crabs(螃蟹) are climbing up the anchors and into the greenhouses.None of the creatures have damaged the plants so far.“It's so kind of science­fiction to see these two different forms of life interact，” Gamberini said. 1．Why was the underwater farm created? A．To help explore the sea. B．To protect sea creatures. C．To improve the sea env