【正确答案】

【答案解析】[听力原文]
   Life as we know it would simply not exist without plants. Biodiversity—the web of all life on Earth—depends fundamentally on plants and fungi. Plants are used by every human being on the planet, every single day. Just think of what you ate for breakfast this morning, the cup of coffee at your desk, the clothes you're wearing. Plants provide the human race with food, fuel, medicine, clothing and shelter, whether we live in the countryside or a modem city, in Europe or in sub-Saharan Africa. Plants provide invaluable services, they provide us with the very air we breathe, clean water and fertile soil and they help regulate the climate. Plants also provide habitats and food for mammals, birds and invertebrates around the globe. But we are living in an age of acute plant blindness. Somehow, while we make great strides in technology, many of us have forgotten the fundamental importance of the very things on which our lives ultimately depend. Plant diversity is being destroyed at a greater rate than ever before and much of this is due to habitat loss through changes in land use. We believe that economic development must go hand in hand with care for the environment. At the Royal Botanic Gardens, Kew, and other botanic gardens around the world, our plant scientists and horticulturists are working towards effective, science-based conservation solutions to ensure that we leave a healthy and hopeful world to the next generation.
   Q: What does biodiversity depend mainly on, according to the passage?
正如我们所知道的，如果没有了植物，生命将会不复存在。生物多样性——地球上所有生命的关系网络——主要依赖于植物和真菌。地球上的每个人每一天都在利用植物。就想想你今天早上吃的早餐，桌子上的咖啡以及身上穿的衣服。植物为人类提供了食物、燃料、药材、衣物和住所，不管我们是住在乡村还是现代城市，欧洲还是撒哈拉沙漠以南的非洲地区。植物提供了无价的服务，它们提供给我们呼吸的空气、干净的水和肥沃的土壤，而且还有助于调节气候。它们还为全球的哺乳动物、鸟类和无脊椎动物提供了栖息地和食物。但是我们正生活在一个极度无视植物的时代。不知怎么地，随着科技的巨大进步，很多人已经忘记了我们的生命最终赖以生存的事物的重要性。植物的多样性正在遭受前所未有的破坏，而这很大程度上缘于对陆地使用而产生的变化中动物栖息地的丧失。我们认为，经济发展必须和环境保护相结合。在克佑区(英国)皇家植物园以及世界上的其他植物园，我们的植物科学家和园艺家正联手研究有效、科学的环境保护方法，以确保为我们的下一代留下一个健康而充满希望的世界。
   快速浏览各题选项，根据其中的关键词plants、human beings、protection和technology and economy推测，该短文很可能谈论的是植物与人类活动的关系等方面的内容，具体细节需要进一步分析各个选项。
   ①四项均由两个并列的名词构成。
   ②四项均含有plants。
   结论：本题很可能考查与植物有关的内容。听音重点为animals、fungi、human beings和earth。
   本题问生物多样性的基础是什么。文章开头提到，生物多样性主要依赖于植物和真菌。故本题选B。