高三英语无脚标一试卷衡水金卷先享题2024届信息卷分享

高三英语无脚标一试卷衡水金卷先享题2024届信息卷分享

刷题是提高学习成绩的有效方法，单位时间内的做题速度也对成绩有至关重要的作用。所以，刷卷子，根据卷子的时间要求做题更是一个很好的方法。因此，我为大家收集整理了高三各科的试卷题目及答案，供大家下载查看。

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Amphibians are animals that can live both on land and in water. A new globalassessment has found that 41%of amphibian species that scientists have studied arethreatened with extinction. That's up from 39% reported in the last assessment in 2004.The study , published on Wednesday in the joural Nature , found that the loss of habitatfrom the legal and illegal expansion of farming and ranching(放牧) contributes most to theextinction risk of amphibians worldwide. But a growing percentage of amphibian species arenow also pushed to the edge of extinction by novel diseases and climate change, the study

found.Amphibians have distinct life stages that each often require separate habitats, so theycan be disturbed by changes in either water or land environments, said University of Texasbiologist Michael Ryan, who was not involved in the study. They are also at risk because oftheir delicate skin. Most amphibians absorb oxygen to breathe through their skin , and so theydo not have scales ("), feathers or fur to protect them. Chemical pollution, bacteria andfungal (真的)infections impact them quickly, as do heightened swings in temperature

and dampness levels due to climate change.For example , frogs are active usually at night. If it's too hot, they won't come out evenat night because they would lose too much water through their skin, said co-author andresearcher Patricia Burowes, But remaining in sheltered resting places limits frogs’ ability to

eat and to produce.Juan Manuel Guayasamin, a frog biologist at the University San Francisco of Quito ,Ecuador , said that advances in technology to track animals and climate variations allowed thenew study to use much more precise data than the 2004 assessment. “ We have a much better

understanding of some risks .” said Cuayasamin.The study identified the greatest concentrations of threatened amphibian species in severalbiodiversity hot spots , including the Caribbean islands, the tropical Andes , Madagascar andSri Lanka. Other locations with large numbers of threatened amphibians include Brazil'sAtlantic Forest, southern China and the southeastern United States.

高三英语无脚标一试卷衡水金卷先享题2024届信息卷分享