易游app

易游app:本集内容

Worst destruction ever for Great Barrier Reef 澳洲大堡礁珊瑚群遭受空前破坏

Mission to clean space 科学家将清理地球轨道上的太空垃圾

易游app:文字稿

The planet's largest living structure struggling for survival. This coral should be alive with colour but it's bleached and barren. These scientists are part of a team that's assessed the health of the entire Great Barrier Reef – an area bigger than Britain – and here the prognosis is poor. On average, two-thirds of the coral in the northern section has died.

地球上最大的生态结构大堡礁正在艰难地求生。这丛珊瑚本应生机勃勃、色彩鲜艳，但它现在已经褪色，贫瘠而荒芜。这些科学家隶属一支评估了整个大堡礁健康状况的研究小组。澳洲大堡礁的面积大于英国总面积，而目前科学家在评估后对其健康做出的预测是“情况不佳”。平均来看，大堡礁北部的珊瑚有三分之二已经死亡。

We've been space-bound since the 1950s, making amazing progress and countless scientific discoveries. But for every advance we've left something behind – space junk. At the University of Southampton, scientists are watching this waste. There are now thought to be 22,000 bits of space rubbish bigger than 10 centimetres.

从五十年代起，人类就开始探索太空，不断地取得惊人的进步，并做出不胜枚举的科学发现。然而，每当我们取得了一点进步时也在太空中留下了一些东西，这些物品被称作“太空垃圾”。英国南安普顿大学的科学家们正对这些废品进行观测。目前，人们认为共有两万两千块长度大于10厘米的太空垃圾。

词汇

prognosis
预断，预测

advance
进步，发展

易游app:练习

请从以下词汇中选择适当的答案来完成句子。注意：你可能需要改变单词的时态来完成句子。

prognosis / advance

1. The _________?of modern medicine means we have a better chance of curing cancer every day.

2. Financial experts say that despite a poor few years, the overall _________ for the economy is good.

易游app:答案 ?

1. The advance of modern medicine means we have a better chance of curing cancer every day.

2. Financial experts say that despite a poor few years, the overall prognosis for the economy is good.