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【BBC】 蝙蝠“上当”撞上建筑物

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发表于 2017-9-12 15:59:26 | 显示全部楼层 |阅读模式
BBC Learning English 英语教学

Bats 'tricked' into flying into buildings 蝙蝠“上当”撞上建筑物

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文字稿

一项最新科学研究发现,那些有大面积玻璃或镜子外观的现代建筑对蝙蝠来说是“潜在的危险”。科学家呼吁人们对该状况进行持续性监测,特别是在蝙蝠大量聚集的地区中。请听报道。

Bats have a remarkable ability to fly at high speeds in the dark while avoiding obstacles. Yet the number of injured or dead bats found near buildings prompted scientists to investigate the risks.

Experiments and observations of bats in the wild suggest glass windows and mirrored buildings create a blind spot for the flying mammals because of the way these surfaces reflect sound.

Bats make calls and listen to the returning echoes to build up a sonic map of their surroundings. Smooth, vertical structures seem to trick bats into thinking the way ahead is clear, increasing the chances of collision.

Researchers from the Max Planck Institute for Ornithology in Germany say more monitoring is needed to assess the impact particularly in key habitats.

词汇

remarkable ability 非凡的能力
obstacles 障碍
prompted 引起了,促使了
investigate 调查
observations 观察
mirrored buildings 有大面积反光镜面的建筑
blind spot 盲点
reflect 反射
echoes 回声
sonic map 声波图
collision 碰撞

测验

请听报道并回答下列问题。

1. Where were injured or dead bats found?

2. What might be the cause of the bats' collisions?

3. True or false? Bats can build an infrared map to help them navigate.

4. Which word in the text means ‘the study of birds, a branch of zoology’?

答案

1. Where were injured or dead bats found?
Many injured or dead bats were found near buildings.

2. What might be the cause of the bats' collisions?
Buildings’ glass or mirrored surfaces reflect sound and causing confusion for the flying mammal.

3. True or false? Bats can build an infrared map to help them navigate.
False. Bats can build a sonic map to help them navigate.

4. Which word in the text means ‘the study of birds, a branch of zoology’?
Ornithology.

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