Polar bears are being increasingly threatened by the effects of climate change, but their disappearance could have far-reaching consequences. They are uniquely adapted to the extreme conditions of the Arctic Circle, where temperatures can reach −40°C. One reason for this is that they have up...
Polar bears are being increasingly threatened by the effects of climate change, but their disappearance could have far-reaching consequences. They are uniquely adapted to the extreme conditions of the Arctic Circle, where temperatures can reach-40°C. One reason for this is that they have up to ...
The article discusses polar bear cell nuclei DNA analysis research that indicates that polar bears may have existed 600,000 or even 5 million years prior to 2013. According to the article, polar bears are threatened by climate change even if they survived the most recent ice age. Researchers ...
Polar bears are being increasingly threatened by the effects of climate change, but their disappearance could have far-reaching consequences(但它们的消失可能会产生深远的影响). They are uniquely adapted to the extreme conditions of the Arctic Circle, where temperatures can reach -40°C. One reason ...
Polar bears are being increasingly threatened by the effects of climate change, but their disappearance 北极熊正在越来越 被 气候 变化的影响 威胁 但是它们的消失 could have far-reaching consequences. They are uniquely adapted to the extreme conditions of ...
分析句子可知,此处应填副词作状语,修饰 threatened。故填unavoidably。 (6)题详解: 考查现在分词。句意:生活在格陵兰岛东南部的熊经历了大约250天的长时间没有海冰。分析句子可知,此处应填非谓语动词作定语。The bears与live是逻辑上的主谓关系,故用现在分词。故填living。 (7)题详解: 考查宾语从句。句意:...
Polar bears are particularly at risk because their habitat is increasingly threatened by global warming. Lots of scientific research has shown that polar beer numbers are on the decline, and that if action is not taken quickly, polar bears may die out from the earth.Pack ice () is decreasing...
Polar bears are being 【小题1】 (increase) threatened by the effects of climate change, but their 【小题2】 (disappear) could have far-reaching consequence. They are uniquely adapted to the extreme conditions of the Arctic Circle, 【小题3】 temperatures can reach -40°C. One reason for ...
Why we need to protect polar bears 显示生词显示重点词 本文词汇 Tip:单击查看句义;划选/双击查生词 APolar bears are being increasingly threatened by the effects of climate change, but their disappearance could have far-reaching consequences.They are uniquely adapted to the extreme conditions of the ...
The first formal count of polar bears in waters between the United States and Russia indicates they're doing better than some of their cousins elsewhere. Polar bears are listed as a threatened species because of reduced sea ice due to climate change. But uriversity and federal researchers ...