精选优质文档-倾情为你奉上2018年高考广东听说考试真题B录音稿及答案Part AEven though polar bears can cope with the cold, they just hate falling through the ice. They pick their way very carefully indeed. He spreads his legs to distribute his weight and progresses carefully. But its not enough. For a hunting bear, it doesnt get much worse than this. The disappearing ice is also troubling the family. The ice is now so thin. It only supports the weight of the lighter cubs, leaving the mother struggling. On the way, sh
