听力文本

The elephants are nearing the end of their long journey.
象群正接近漫长旅途的终点
After weeks of marching they're desperately tired.
经过数周的长途跋涉，它们都已是精疲力尽
The matriarch can smell water and encourages the herd to make one last effort.
母象首领闻到了水的气味，它鼓励象群再做最后的努力

The youngsters are exhausted, but their mothers have made this journey before
小象疲惫不堪，不过它们的母亲以前也经历过这种旅行
and they know that they're close to water.
它们很清楚水就在不远的前方
After many hundreds of miles they've arrived.
在完成数百英里的行程之后，它们终于抵达了目的地
The lives of these elephants are dominated by the annual rhythm of wet and dry,
这些大象的生活决定于一年一度的干湿季节交替
a seasonal cycle created by the sun.
这是太阳造成的季节循环

词汇解析

1.make a last effort 围住；接近
I decide to make a last effort to persuade him to further cooperate with us.
我决定做最后一次努力试图说服他继续和我们合作。

2.be close to 接近...
Most have either met their targets or are close to doing so.
目前，大部分银行已经达到了标准或是接近达标。

3.be dominated by 受……支配
Its markets are dominated by financials and energy stocks, which hardly speak to a rising consumer.
金融和能源占据市场的主导地位，这很难向持续增长的消费者言说。

视频及简介

北极的春季，北极熊妈妈和它的孩子从它们的洞穴中走出来，它们只有短短的两周时间，它们要在冰雪融化前穿越冰冻的大海，它们进退两难。在这集中，我们将看到一些最难得的、完整的北极熊生活的画面。