英语听力：自然百科 北极熊 冰上间谍 Spy_Bear—4
时间：2019-01-22 作者：英语课 分类：自然百科2010年
英语课
But polar bear courtship is never straightforward 1. She likes to play hard-to-get. It's also a challenge for blizzardcam.
She's testing his fitness, making sure he is a good catch. He skills on the slopes show room for improvement. And now, the female invents a new challenge--a climbing contest. Her huge claws act like crampons. Being lighter 2 and nimbler, she has the advantage. Males can be twice as heavy reaching three quarters of a ton.
She's after a mate that's playful and energetic, one with strong genes 3. But his chances are slipping away. She tested his performance and pushed him too far. Meanwhile, the mother with one cub 4 is still sticking to higher ground. But deep snow is a real struggle for her little cub. She encourages him with reassuring 5 calls.
adj.正直的，坦率的；易懂的，简单的
- A straightforward talk is better than a flowery speech.巧言不如直说。
- I must insist on your giving me a straightforward answer.我一定要你给我一个直截了当的回答。
n.打火机，点火器；驳船；v.用驳船运送；light的比较级
- The portrait was touched up so as to make it lighter.这张画经过润色，色调明朗了一些。
- The lighter works off the car battery.引燃器利用汽车蓄电池打火。
n.基因( gene的名词复数 )
- You have good genes from your parents, so you should live a long time. 你从父母那儿获得优良的基因，所以能够活得很长。 来自《简明英汉词典》
- Differences will help to reveal the functions of the genes. 它们间的差异将会帮助我们揭开基因多种功能。 来自英汉非文学 - 生命科学 - 生物技术的世纪
n.幼兽，年轻无经验的人
- The lion cub's mother was hunting for what she needs. 这只幼师的母亲正在捕猎。
- The cub licked the milk from its mother's breast. 这头幼兽吸吮着它妈妈的奶水。
a.使人消除恐惧和疑虑的，使人放心的
- He gave her a reassuring pat on the shoulder. 他轻拍了一下她的肩膀让她放心。
- With a reassuring pat on her arm, he left. 他鼓励地拍了拍她的手臂就离开了。