英语听力：自然百科 北极熊 冰上间谍 Spy_Bear—1
时间：2019-01-22 作者：英语课 分类：自然百科2010年
英语课
The islands of Svalbard in Arctic Norway. They might be remote, but they are under surveillance.
Spy cameras are capturing the most intimate images ever taken of polar bears. They're revealing some remarkable 1 behavior and discovering an animal of surprising curiosity and intelligence.
Snow-cam doesn't operate alone. Blizzard-cam can travel at 40 mph, powered by propellers 2 and gliding 3 on skis. Snowballcam can operate at temperatures of 40 below. Its spherical 4 design makes it almost indestructible. Together they explore the islands looking for bears. Their first mission is to film a mother with cubs 5 emerging from maternity 6 dens 7 hidden in these hills. The only clue to the den's presence is a snowy mound 8. Driftcam and other spycams can lay in wait for days. They are left unattended, primed to film the moment they sense movement. A whiteout soon makes their task seem like mission impossible. But help is a paw swipe away.
adj.显著的，异常的，非凡的，值得注意的
- She has made remarkable headway in her writing skills.她在写作技巧方面有了长足进步。
- These cars are remarkable for the quietness of their engines.这些汽车因发动机没有噪音而不同凡响。
n.螺旋桨，推进器( propeller的名词复数 )
- The water was thrashing and churning about under the propellers. 水在螺旋桨下面打旋、翻滚。 来自辞典例句
- The ship's propellers churned the waves to foam. 轮船的推进器将海浪搅出泡沫。 来自辞典例句
adj.球形的；球面的
- The Earth is a nearly spherical planet.地球是一个近似球体的行星。
- Many engineers shy away from spherical projection methods.许多工程师对球面投影法有畏难情绪。
n.幼小的兽，不懂规矩的年轻人( cub的名词复数 )
- a lioness guarding her cubs 守护幼崽的母狮
- Lion cubs depend on their mother to feed them. 狮子的幼仔依靠母狮喂养。 来自《简明英汉词典》
n.母性，母道，妇产科病房；adj.孕妇的，母性的
- Women workers are entitled to maternity leave with full pay.女工产假期间工资照发。
- Trainee nurses have to work for some weeks in maternity.受训的护士必须在产科病房工作数周。
n.牙齿，齿状部分；兽窝( den的名词复数 )；窝点；休息室；书斋
- Female bears tend to line their dens with leaves or grass. 母熊往往会在洞穴里垫些树叶或草。 来自辞典例句
- In winter bears usually hibernate in their dens. 冬天熊通常在穴里冬眠。 来自辞典例句