英语听力:探索发现 2012-10-17 长毛象王国 Mammoth—17(在线收听) |
Musk oxen and arctic hares are well-insulated against the cold as are the largest grazers of them all, the woolly mammoths. This herd is regrouping, ready for a long day feeding on the grasses beneath the snow. Mothers need to keep milk flowing for the young.
This baby will need all the care that he can get to make it through its first Beringian winter. Despite the cold, there is still food available. The high winds stop the snow from building up and keep the grass exposed, a lifeline for all Beringia’s grazers. |
原文地址:http://www.tingroom.com/lesson/yytltsfx/2012/244842.html |