2019年雅思考试必看听力材料精编汇总3

许多考生觉得雅思听力难，无法理解，而且速度快。主要的问题是，他们通常会少听，漏听，在答题方面很受限制。所以在选择听力材料的时候要格外注意，今天小编就给大家带来坦途网雅思考试频道中的一篇听力材料，想要学习到更多内容的考生可以去网站里看看哦！现在我们就先看一下这篇文章吧！

The Arctic Ocean

The Arctic Ocean (also called Northern Icy Ocean or Northern Ocean), located in theNorthern Hemisphere and mostly in the Arctic north polar region, is the smallest and shallowest of the world's five major oceanic divisions. The International Hydrographic Organization (IHO) recognizes it as an ocean, although some oceanographers call it the Arctic Mediterranean Sea or simply the Arctic Sea, classifying it a mediterranean sea or an estuary of the Atlantic Ocean. Alternatively, the Arctic Ocean can be seen as the northernmost part of the all-encompassing World Ocean.

Almost completely surrounded by Eurasia and North America, the Arctic Ocean is partly covered by sea icethroughout the year (and almost completely in winter). The Arctic Ocean's temperature and salinity varyseasonally as the ice cover melts and freezes; its salinity is the lowest on average of the five major oceans, due to low evaporation, heavy freshwater inflow from rivers and streams, and limited connection and outflow to surrounding oceanic waters with higher salinities. The summer shrinking of the ice has been quoted at 50%. The US National Snow and Ice Data Center (NSIDC) uses satellite data to provide a daily record of Arctic sea ice cover and the rate of melting compared to an average period and specific past years.

以上就是小编给大家整理的相关内容了，想要考好听力就要积累大量的词汇，然后还需要给自己营造一个良好的氛围和英文生活环境，在这样的环境下，小编相信大家的听力能力一定很快就会提升的，最后小编希望大家在雅思考试成绩查询结果出来时，看到的都是自己理想的成绩！