冰雪世界 4-英语听力

[00:01.12]First though valuable nesting places
来之不易的孵化地 [00:03.65]must be defended from property thieves
最重要的是要防止窃贼 [00:06.68]After laying their eggs
下完蛋之后 [00:09.44]the petrels take time out to clean their plumage
会抽出时间把羽毛清理干净 [00:13.22]The south polar skua is a formidable opportunist
灰贼鸥是一种强大的投机分子 [00:19.73]but the skuas have not chanced upon the petrels
但贼鸥对雪鹱从不主动出击 [00:22.84]they've been waiting for them
而是等待它们的到来 [00:25.76]These birds do not need to go to the ocean for their food
它们不需要费力地到海洋里去寻找食物了 [00:32.61]The skuas can survive further south than any other predator
贼鸥可以比其他肉食动物生存到更南边 [00:36.84]by exploiting the petrels' desperate need for bare rock
通过利用雪鹱极度渴望的裸露的岩石 [00:42.22]Even at the height of summer
即使是在盛夏 [00:44.4]less than 3% of Antarctica is free of ice
南极也只有不到百分之三的地方没有冰雪覆盖 [00:47.96]and nearly all of that exposed rock
而且几乎所有露出的地面 [00:50.24]is found in one place - the Antarctic Peninsula
只集中在一个地方——南极半岛 [00:54.89]Its long arm extends further north than the rest of the continent
这块地方像一只向温带伸出的长臂 [00:59.86]so spring arrives here first
所以这里的春天来得最早