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Passage One
短文一
Birds are famous for carrying things around.
鸟类以搬运东西而闻名。
Some, like homing pigeons, can be trained to deliver messages and packages.
有些像信鸽一样，可以接受培训以传递消息和包裹。
Other birds unknowingly carry seeds that cling to them for the ride.
其它鸟类在不知不觉中携带了粘附着它们的种子。
Canadian scientists have found a worrisome, new example of the power that birds have to spread stuff around.
加拿大科学家发现了一个令人担忧的事实，即鸟类所拥有的传播的力量的新例子。
Way up north in the Canadian Arctic, seabirds are picking up dangerous chemicals in the ocean and delivering them to ponds near where the birds live.
在加拿大北极的北部，海鸟正在海洋中拾起危险化学品，并将其运送到靠近鸟类生活地的池塘。
Some 10,000 pairs of the birds, called fulmars, a kind of Arctic seabird, make their nests on Devon Island, north of the Arctic Circle.
北极圈北部的德文岛上有一万只鸟在此筑巢，它们被称为管鼻藿，一种北极海鸟。
The fulmars travel some 400 kilometers over the sea to find food.
这些管鼻藿在海上穿越约四百公里去寻找食物。
When they return home, their droppings end up all around their nesting sites, including in nearby ponds.
当他们回家时，他们的粪便会围绕着他们的筑巢地点，包括附近的池塘。
Previously, scientists noticed pollutants arriving in the Arctic with the wind.
以前，科学家注意到有随着风抵达北极的污染物。
Salmon also carry dangerous chemicals as the fish migrate between rivers and the sea.
随着鱼类在海洋之间的迁徙，三文鱼也会携带危险化学品。
The bodies of fish and other meat-eaters can build up high levels of the chemicals.
鱼类和其他肉食者的尸体可以积累高含量的化学物质。
To test the polluting power of fulmars, researchers collected samples of deposit from 11 ponds on Devon Island.
为了测试污染物的污染力，研究人员从德文岛的11个池塘收集了沉积物样本。
In ponds closest to the colony, the results showed there were far more pollutants than in ponds less affected by the birds.
在最靠近栖息地的池塘中，结果显示污染物远远高于不受鸟类影响的池塘。
The pollutants in the ponds appear to come from fish that fulmars eat when they're out on the ocean.
池塘中的污染物似乎来自管鼻藿在海洋里吃的鱼类。
People who live, hunt, or fish near bird colonies need to be careful, the researchers say.
研究人员说，在禽鸟群附近生活，狩猎或捕鱼的人需要小心。
The birds don't mean to cause harm, but the chemicals they carry can cause major problems.
鸟类不意味着会造成伤害，但它们携带的化学物质可能会导致重大问题。
Questions 9 to 12 are based on the passage you have just heard.
问题9到12基于你刚刚听到的段落。
Question 9. What have Canadian scientists found about some seabirds?
问题9.加拿大科学家关于海鸟有什么发现？
Question 10. What does the speaker say about the seabirds called fulmars?
问题10.说话者说了关于管鼻藿的什么？
Question 11. What did scientists previously notice about pollutants in the Arctic?
问题11.科学家之前发现了北极圈污染物的什么实事？
Question 12. What does the speaker warn about at the end of the talk?
问题12.说话者在讲话的最后做出了什么警告？
