42.High School English Listening

You've probably heard that climate change is bad news formany animal species like polar bears.
Warmer temperatures mean less sea ice in the Arctic region.
And with less ice, there's less room there is for polar bears to hunt.
And so their populations shrink.
But rising temperatures do not affect all animals in equally harmful ways.
For some animals, evenfor some bears, warming may be beneficial. Take, for example, the grizzly.
Like pretty much all animals, grizzly bears thrive when they have more food.
A ten year study thatfollowed 112 bears in the Rocky Mountains of Alberta, Canada, has found that warmertemperatures have resulted in grizzlies having easier access to food.
The more food they have, the fatter the bears get.
And the more fat lady grizzlies store, the bettertheir chances of having healthy cubs.
Cubs born during warmer than normal years were found togrow into larger and healthier adults.
Of course, this in no way negates the fact that climate change is a serious issue requiringimmediate and ongoing attention.
For every species that may benefit from global warming, manymore may suffer and possibly go extinct.
But the study does show that warming does not necessarily spell total gloom and doom for allanimal species.
Plus, the research may give scientists a clue about how to alter forest harvestdesigns to increase the grizzly population in the Canadian Rockies.
At the moment, there are onlyaround 750 bears in Alberta, making them an endangered species.
译文：
你可能听说过，气候变化对任何动物物种如北极熊都是坏消息。
气温升高意味着北极地区的海冰减少。
而随着冰层的减少，北极熊捕食的空间就会减少。
因此，它们的种群就会萎缩。
但是，气温上升并没有以同样有害的方式影响所有动物。
对于一些动物，甚至对于一些熊，气温上升可能是有益的。以灰熊为例。
像几乎所有的动物一样，灰熊在有更多的食物时就会茁壮成长。
一项对加拿大阿尔伯塔省落基山脉的112头熊进行的为期十年的研究发现，气温变暖导致灰熊更容易获得食物。
它们的食物越多，熊就越胖。
而灰熊储存的脂肪越多，它们生育健康幼崽的机会就越大。
在比正常年份更温暖的年份出生的幼熊被发现成长为更大和更健康的成年人。
当然，这决不是否认气候变化是一个需要立即和持续关注的严重问题。
对于每一个可能从全球变暖中受益的物种，更多的物种可能会受到影响，并可能灭绝。
但是，这项研究确实表明，气候变暖并不一定意味着所有动物物种都会陷入阴霾和厄运。
此外，这项研究可能会给科学家提供一条线索，告诉他们如何改变森林采伐设计，以增加加拿大落基山脉的灰熊数量。
目前，阿尔伯塔省只有大约750头熊，使它们成为濒危物种。
重点词汇：
climate change 气候变化
bad news 坏事
polar bears 北极熊 ; 白熊 ; polar bear的复数
there is 有
for example 例如 ; 比如
they have 他们有 ; 他们刚点了吃的 ; 他们在家吃早餐
access to 接近，去…的通路，使用…的机会