英语科普：罗亚岛国家公园仅剩三只野狼.docx

Only three wolves seem to remain in Isle1 Royale National Park. Researchers from Michigan Technological2 University observed the wolves during their annual Winter Study, and the lone3 group, at an unprecedented4 low, is a sharp decline from nine wolves observed last winter. The study's report, released today, marks the project's 57th year of observing wolves and moose in Isle Royale. It is the longest running predator5-prey6 study in the world. This year, along with the three resident wolves, scientists estimated 1,250 moose on the island and observed two visiting wolves, which came and then left across an ice bridge to the mainland. This growing gap between the predator and prey populations is a trend that Michigan Tech researchers have tracked over the past four years."It's not the presence of wolves that matters so much, it's whether wolves are performing their ecological7 function," says John Vucetich, an associate professor of wildlife ecology who leads the study along with Rolf Peterson, a research professor at Michigan Tech.Last April, the Isle Royale National Park released a statement concerning wolf intervention8 options. Part of the statement reads: "There is still a chance of nature replenishing the gene9 pool as wolves are able to move to and from the island when ice bridges form."But with only three wolves remaining, Vucetich says, "There is now a good chance that it is too late to conduct genetic10 rescue." He also points out that one of the Isle Royale wolves left on an ice bridge last winter, and this winter, two wolves visited the island and promptly11 traveled back over the ice bridge.词汇解析：1 isle n.小岛，岛参考例句：He is from the Isle of Man in the Irish Sea.他来自爱尔兰海的马恩岛。

The boat left for the paradise isle of Bali.小船驶向天堂一般的巴厘岛2 technological adj.技术的；工艺的参考例句：A successful company must keep up with the pace of technological change.一家成功的公司必须得跟上技术变革的步伐Today,the pace of life is increasing with technological advancements.当今， 随着科技进步，生活节奏不断增快3 lone adj.孤寂的，单独的；唯一的参考例句：A lone sea gull flew across the sky.一只孤独的海鸥在空中飞过She could see a lone figure on the deserted beach.她在空旷的海滩上能看到一个孤独的身影4 unprecedented adj.无前例的，新奇的参考例句：The air crash caused an unprecedented number of deaths.这次空难的死亡人数是空前的。

A flood of this sort is really unprecedented.这样大的洪水真是十年九不遇5 predator n.捕食其它动物的动物；捕食者参考例句：The final part of this chapter was devoted to a brief summary of predator species.本章最后部分简要总结了食肉动物Komodo dragon is the largest living lizard and a fearsome predator.科摩多龙是目前存在的最大蜥蜴，它是一种令人恐惧的捕食性动物6 prey n.被掠食者，牺牲者，掠食；v. 捕食，掠夺，折磨参考例句：Stronger animals prey on weaker ones.弱肉强食The lion was hunting for its prey.狮子在寻找猎物7 ecological adj.生态的，生态学的参考例句：The region has been declared an ecological disaster zone.这个地区已经宣布为生态灾难区。

Each animal has its ecological niche.每种动物都有自己的生态位.8 intervention n.介入，干涉，干预参考例句：The government's intervention in this dispute will not help.政府对这场争论的干预不会起作用Many people felt he would be hostile to the idea of foreign intervention.许多人觉得他会反对外来干预9 gene n.遗传因子，基因参考例句：A single gene may have many effects.单一基因可能具有很多种效应The targeting of gene therapy has been paid close attention.其中基因治疗的靶向性是值得密切关注的问题之一10 genetic adj.遗传的，遗传学的参考例句：It's very difficult to treat genetic diseases.遗传性疾病治疗起来很困难Each daughter cell can receive a full complement of the genetic information.每个子细胞可以收到遗传信息的一个完全补偿物。

11 promptly adv.及时地，敏捷地参考例句：He paid the money back promptly.他立即还了钱She promptly seized the opportunity his absence gave her.她立即抓住了因他不在场给她创造的机会更多英语学习方法：企业英语培训 。