Unit 5 A Delicate World课文中英对照 清单-2026-2027学年高中英语外研版选择性必修第二册

该高中英语单元围绕“微妙的世界”主题，整合3篇生态保护相关语篇。从麦夸里岛生态破坏与恢复的记叙文，到神农架世界遗产标准分析的说明文，再到梵净山讲座稿写作实践，构建“案例感知-原因分析-表达应用”的学习支架，涵盖生态词汇、说明文结构、讲座稿写作等知识。 知识链路以真实案例为依托，通过对比分析（如麦夸里岛与神农架的保护措施）培养思维品质，结合中英文对照提升语言能力，融入世界遗产文化增强文化意识。语篇类型多样，兼顾阅读输入与写作输出，助力学生形成“理解-分析-表达”的学科学习方法。

Unit 5 A Delicate World / 微妙的世界 本单元共收录 3 篇（组）英文语篇。 1. Macquarie Island: From Chaos to Conservation / 麦夸里岛：从混乱走向保护 I am standing on Macquarie Island, in the South-west Pacific Ocean, halfway between Australia and Antarctica. Strong winds and stormy seas have helped sculpt its long, thin shape. The green grass and bare rock of its landscape contrast dramatically, giving it a wild and natural beauty. No visitor would think it surprising that the island is a UNESCO World Heritage Site. Nor would they fail to imagine how its native inhabitants, including royal penguins, king penguins, and elephant seals, existed in perfect harmony with their natural habitat for thousands of years. But the island’s more recent history tells a different story. It’s a tragic story that began in 1810 when humans arrived on the island. In their ships they unknowingly brought rats and mice. These small animals quickly took over the island, eating the birds’ eggs and attacking baby birds. Cats were brought to the island to control the rats and mice. Unfortunately, the cats subsequently developed an appetite for the birds, too. Meanwhile, rabbits were introduced to the island as a source of food for humans. Loose on the island, they did what rabbits do best – they multiplied rapidly and began eating the native vegetation and digging holes, which caused soil erosion. The exploding rabbit population provided plentiful food for the cats, meaning that the number of cats also increased. This in turn led to more cats hunting the birds. The end result was that parakeets, once large in number and native to the island, died out in 1891. Even after Macquarie Island became an official nature reserve in the 1970s, the rabbits remained out of control. Experts felt it necessary to come up with a plan to remove all the rabbits from the island. With this goal in mind, a virus was released onto the island. But although the virus caused the rabbit population to decrease from 130,000 to around 10,000, it also meant less food for the cats. The cats in consequence turned their attention – and their stomachs – back to the native birds, killing up to 60,000 each year. In the 1980s, traps and dogs were used to catch the cats. The last Macquarie Island cat was caught in 2000. But as the saying goes, “While the cat’s away, the mice will play.” With the departure of the cats from the island, the mouse and rat population started to increase. And remember those 10,000 or so rabbits? It turned out that they developed an immunity to the virus, and their numbers exploded once again. Then, in 2006, the rabbits’ digging caused some land to collapse, and killed a substantial number of penguins. This incident made it clear that the rat, mouse and rabbit problem needed solving once and for all. So, I am here on Macquarie Island to participate in the programme to tackle this very problem. The first step involved poison being dropped from helicopters. The next step is to remove the last remaining invading species, and that’s where I come in – with my dogs. They have been trained to find every last one, without harming the native animals. This intervention is a long, much-delayed ending to a sad story, but we humans owe it to the island to give it a happy ending. Postscript: In 2014, Macquarie Island was declared pest-free and the island’s ecology is finally on the road to recovery. 我正站在麦夸里岛上。它位于西南太平洋，处在澳大利亚与南极洲之间。强风和汹涌海浪共同塑造了这座狭长岛屿。绿色草地与裸露岩石形成鲜明对比，赋予这里原始、天然的美。任何游客都不会惊讶于它被列入联合国教科文组织世界遗产名录；也不难想象，数千年来，岛上的原生居民——包括皇家企鹅、王企鹅和象海豹——一直与自然栖息地和谐共存。 然而，这座岛屿近代以来的历史讲述的却是另一个故事。悲剧始于1810年人类登岛之时。他们的船只无意间带来了大鼠和小鼠。这些小动物迅速占领岛屿，吃鸟蛋、袭击幼鸟。人们又把猫带到岛上，以控制鼠类。不幸的是，后来猫也对鸟类产生了食欲。 与此同时，人类把兔子引入岛上作为食物来源。获得自由的兔子发挥了最擅长的本领——迅速繁殖。它们开始啃食本地植被、挖掘洞穴，造成土壤侵蚀。急剧增加的兔群为猫提供了充足食物，猫的数量也随之上升，进而有更多猫开始捕食鸟类。最终，曾经数量众多、为岛上特有的长尾鹦鹉于1891年灭绝。 即使麦夸里岛在20世纪70年代成为正式自然保护区，兔子的数量仍然失控。专家认为有必要制定计划，清除岛上所有兔子。为实现这一目标，人们在岛上释放了一种病毒。病毒虽使兔子数量从13万只降至约1万只，却也减少了猫的食物。于是，猫重新把注意力——以及胃口——转向本地鸟类，每年捕杀多达6万只。20世纪80年代，人们用捕兽器和猎犬捕捉猫；2000年，岛上的最后一只猫被捕获。 然而，正如俗话所说：“猫儿不在，老鼠作怪。”猫离开岛屿后，大鼠和小鼠的数量开始增加。还记得剩下的约1万只兔子吗？事实证明，它们对病毒产生了免疫力，数量再次爆发式增长。2006年，兔子挖洞导致一处土地坍塌，造成大量企鹅死亡。这一事件清楚表明，鼠类和兔子的问题必须得到彻底解决。 因此，我来到麦夸里岛，参加专门处理这一问题的项目。第一步是由直升机投放毒饵；下一步则是清除最后残留的外来入侵物种，而这正是我和我的猎犬要完成的工作。它们受过训练，能够找到每一只残留动物，同时不伤害本地物种。这次干预行动来得漫长而迟缓，却终于将为这个悲伤故事画上句号；我们人类亏欠这座岛屿一个幸福的结局。 后记：2014年，麦夸里岛被宣布已清除有害外来物种，岛上的生态系统终于走上恢复之路。 2. Why Shennongjia? / 为什么是神农架？ Good morning, everyone. It is my great pleasure to give a lecture here on behalf of the Be at One with Nature Association. As we know, in 2016, Shennongjia made it onto the UNESCO World Heritage List. But there are so many important places not yet on this list. So you might ask: why Shennongjia? Is it its forests that stretch on and on like great green seas? Is it the legendary father of Chinese herbal medicine, Shennong, after whom the park is named? Or is it the mysterious creature called “Yeren” (wild man) that has captured the imagination of the world? UNESCO awarded Shennongjia this status because it meets two criteria required by the list. It contains a naturally-balanced environment that allows the many and various species to live and prosper. It is also one of the rare locations in the world where scientists can observe in real time the ecological and biological processes that occur as the plants and animals develop and evolve. For the first criterion, Shennongjia is apparently one of the most “complete” natural areas in the world. The region rises from about 400 metres to over 3,000 metres above sea level, giving it the name the “Roof of Central China”. The vast range in altitude results in a great variation in climatic conditions. This allows a wide variety of species to thrive. Some of the plants and animals have survived millions of years, and are regarded as living fossils. For the second criterion, we can see that Shennongjia has incredible biodiversity. Look at this slide. According to official statistics, over 3,000 plant species have been recorded there. This represents more than ten per cent of China’s total floral richness. Shennongjia supports more than 600 vertebrate species, including the Golden Snub-nosed Monkey and the Clouded Leopard. Additionally, around 4,300 insect species have been recorded. It is a challenge to look after so many species. In winter, scientists brave heavy snow and freezing temperatures to supply food to the Golden Snub-nosed Monkey. Thanks to their efforts, the monkey’s population has doubled since the 1980s. Their number reached over 1,300 in 2015 and continues to grow. But the most impressive aspect of Shennongjia is the local people, who take things from nature without causing damage. I visited a local village which is known for its home-made honey. What is special about the honey is that it is produced by the earliest species of Chinese bee. Every spring, the villagers place beehives around their houses to attract these wild bees from the forest. Although endangered elsewhere in China due to the invasion of foreign species, the bees of Shennongjia have coexisted with the local people for centuries. By providing the bees with a secure home, the villagers collect their honey in return. This is just one of the ways in which people of Shennongjia live and work in harmony with nature. All of this explains why Shennongjia earned – and deserves – its place on the UNESCO World Heritage List, as well as highlighting how understanding, awareness and hard work have contributed towards protecting a unique and wonderful part of our natural world. Thank you for listening. Now, does anyone have any questions? 大家早上好。我非常荣幸代表“与自然融为一体协会”在这里作讲座。 众所周知，2016年，神农架被列入联合国教科文组织世界遗产名录。然而，仍有许多重要地区尚未进入这份名录。因此，你或许会问：为什么是神农架？是因为那里绵延不绝、宛如绿色海洋的森林吗？是因为公园以中国草药传说中的始祖神农命名吗？还是因为那种被称为“野人”、激发了全世界想象的神秘生物？ 联合国教科文组织授予神农架世界遗产地位，是因为它符合名录要求的两项标准。这里拥有自然平衡的环境，使众多不同物种得以生存繁衍；它也是世界上少数几个科学家能够实时观察动植物发育、进化过程中生态与生物学变化的地区之一。 就第一项标准而言，神农架显然是世界上最“完整”的自然区域之一。这里海拔从约400米上升至3,000多米，因此享有“华中屋脊”之称。巨大的海拔跨度带来显著的气候差异，使多种物种得以繁盛。一些动植物已存活数百万年，被视为“活化石”。 就第二项标准而言，神农架拥有令人惊叹的生物多样性。请看这张幻灯片。官方统计显示，这里已记录3,000多种植物，占中国植物种类总数的百分之十以上。神农架还拥有600多种脊椎动物，包括川金丝猴和云豹；此外，已记录的昆虫约有4,300种。 保护如此众多的物种是一项挑战。冬季，科学家冒着大雪和严寒，为川金丝猴提供食物。得益于他们的努力，川金丝猴的数量自20世纪80年代以来翻了一番；2015年已超过1,300只，并仍在增长。 不过，神农架最令人印象深刻的，是当地居民：他们从自然中获取所需，却不造成破坏。我参观了一个以自制蜂蜜闻名的村庄。这种蜂蜜的特别之处在于，它由中国最古老的蜜蜂品种酿造。每年春天，村民在房屋周围放置蜂箱，吸引森林中的野生蜜蜂。尽管这些蜜蜂因外来物种入侵而在中国其他地区濒危，它们却已与神农架当地居民共存数百年。村民为蜜蜂提供安全住所，并以此换取蜂蜜。这只是神农架居民与自然和谐生活、和谐劳作的方式之一。 这一切解释了神农架为什么获得——也确实配得上——联合国教科文组织世界遗产地位，同时也说明，理解、意识与辛勤努力如何共同保护了自然世界中这一独特而美妙的区域。 感谢大家聆听。现在，有人要提问吗？ 3. Drafting a Lecture: Fanjing Mountain / 讲座稿写作：梵净山 If you haven’t already heard of Fanjing Mountain, you soon will! A “must” for anyone visiting Guizhou Province, Fanjing Mountain has now been added to the UNESCO World Heritage List, bringing the total number of UNESCO sites in China to 53. The main reason for its inclusion is its biological diversity, with approximately 50 endangered plant and animal species found in its protected area. One of the first national nature reserves in China, Fanjing Mountain represents one of the country’s greatest achievements in environmental protection. It is also renowned for its breathtaking scenery as a summer resort. 即使你以前还没有听说过梵净山，很快也一定会知道它！梵净山是到贵州旅游者不可错过的地方，如今已被列入联合国教科文组织世界遗产名录，使中国的世界遗产地总数达到53处。它入选的主要原因是丰富的生物多样性：在保护区内发现了约50种濒危动植物。作为中国最早建立的国家级自然保护区之一，梵净山代表了我国环境保护方面最重要的成就之一。它还是著名的避暑胜地，以令人屏息的秀丽风光闻名。 学科网（北京）股份有限公司 $