雅思考试的每一部分都不是容易的,听力,口语,阅读,写作,都是一点点的积累,然后运用之。阅读题最是展现你词汇量,逻辑理解的时候了,平时的阅读积累就显得尤为重要,多看多读多练习。下面是有为你整理的《雅思阅读考前必看:Runaway Devils Lake》,希望对你的雅思考试有所参考价值,考出一个好的成绩。
雅思阅读:Runaway Devils Lake
Devils Lake is where I began my career as a limnologist in 1964, studying the lakes neotenic salamanders and chironomids, or midge flies. Back then, the lake covered about 80 square kilometers, had a maximum depth of about 3 meters and held about 130,000 acre-feet of water. The lake has since risen 13 meters, from a surface elevation of 430 meters above mean sea level to 443 meters. Estimated lake volume is now 4.1 million acre-feet, or about 32 times greater than it was in 1964, and about 370 times greater than it was in 1940 when the lake stood at a record low elevation of 427 meters.
The Devils Lake Basin is an endorheic, or closed, basin covering about 9,800 square kilometers in northeastern North Dakota. The basin is at the epicenter of an unprecedented wet period in the lakes modern-day history going back to 1867, when the lakes surface elevation was first measured. Basin climate has become substantially wetter since 1990, with the years 1990 through 2009 ranking as the wettest 20-year period in more than a century. The National Weather Service has referred to this trend as the new climate for the Devils Lake region, cautiously predicting that the current weather pattern may continue for several decades and possibly intensify. Indeed, the agency has warned that the region faces the strong possibility of an unprecedented fourth consecutive major spring flood threat in 2012.
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