文字稿
一項(xiàng)最新科學(xué)研究發(fā)現(xiàn)，那些有大面積玻璃或鏡子外觀的現(xiàn)代建筑對(duì)蝙蝠來說是“潛在的危險(xiǎn)”?？茖W(xué)家呼吁人們對(duì)該狀況進(jìn)行持續(xù)性監(jiān)測(cè)，特別是在蝙蝠大量聚集的地區(qū)中。請(qǐng)聽報(bào)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.
詞匯表
remarkable ability 非凡的能力
obstacles 障礙
prompted 引起了，促使了
investigate 調(diào)查
observations 觀察
mirrored buildings 有大面積反光鏡面的建筑
blind spot 盲點(diǎn)
reflect 反射
echoes 回聲
sonic map 聲波圖
collision 碰撞
測(cè)驗(yàn)
請(qǐng)聽報(bào)道并回答下列問題。
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.
