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英語考研復(fù)試聽力練習(xí)材料(編輯修改稿)

2025-05-04 01:20 本頁面
 

【文章內(nèi)容簡介】 scenario is the West Antarctic ice sheet. A Brazil size mass frozen water that as much as 7,000 feet thick, unlike floating ice shelves which have little impact on sea level when they break up, the ice sheet is anchored to bedrock will blow the sea surface. Surrounded by an open ocean, it is also vulnerable. But Antarctic experts disagree strongly on just how unstable it is. Now new evidence reveals that all are most of the West Antarctic ice sheet collapsed at least once during the past million years a period when global temperatures probably will not significantly higher than they are today. And the ice sheet was assumed to have been stable. In geologic time, a million years is recent history. The proof which was published last week in Science es from a team of scientists from Uppsala University in Sweden and Californian Institute of Technology who drill deep holes near the edge of the ice sheet. Within samples collected from the solid substance lying beneath the ice, they found fossils of microscope marine plants which suggests the region was once an open ocean, not solid ice. As Herman Ankleherd, a coauthor from Californian Institute of Technology says, “The West Antarctic ice sheet disappeared once and can disappear again.”  Questions 26 to question 29 are based on the passage you have just heard.  Question 26: What is one of the most frightening threats of global warming according to the passage?  Question 27: What did scientists disagree on?  Question 28: What does the latest information reveal about West Antarctic ice sheet?  Question 29: What does scientists’ latest finding suggest?  Passage2  It’s always fun to write about reserch you can actually try out yourself. Try this. Take a photo and upload it to Facebook, then after a day or so, know what URL link to the picture is and then delete it. Come back a month later and see if the link works. Chances are, it will. Facebook isn’t alone here. Researches at Cambridge University have found out nearly half of the social netwworking sites don’t delete pictures immediately when a user request they be removed. In general, photocentric websites like Phlica were found to be better at q
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