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B2 中高级 英语 5:59 692 单词 Educational

Are vampire bats dangerous? - Imran Razik

TED-Ed · 179,159 次观看 · 添加于 3 个月前

AI摘要

这个教育视频探索了吸血蝙蝠迷人的生物学知识——它们是唯一完全靠血液生存的哺乳动物。学习者将掌握与动物行为、生态学和进化生物学相关的科学词汇,包括回声定位、寄生虫和互利合作等术语。视频还展示了吸血蝙蝠群落内令人惊叹的社会纽带,其中食物分享和梳理毛发在生存中发挥着至关重要的作用。

学习统计

B2

CEFR 等级

692

总词数

400

独特词汇

6/10

难度

词汇多样性 58%

字幕 (38 片段)

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00:07

As dawn settles on the Amazon, a bat opens wide and vomits blood into its companion's mouth.

00:14

And it’s not the first time they’ve shared a meal.

00:18

Vampire bats are the only mammals to subsist on blood alone.

00:22

Their ancient ancestors might have eaten parasites and insects off larger animals till vampire bats began feeding directly from those larger animals themselves.

00:33

There are three vampire bat species, all of which inhabit the warmer regions of Central and South America.

00:41

Two of the three species— hairy-legged and white-winged vampire bats— more often prey on birds, quietly creeping up tree branches while they roost.

00:53

But the most abundant vampire bat species is the aptly named common vampire bat.

00:59

Following the nighttime routine of one such bat, we see that she sets out in pitch black, mapping her surroundings with ultrasonic sound waves.

完整字幕可在视频播放器中查看

核心词汇 (16)

food A1 noun

食物是任何为生物提供营养支持而摄入的物质。我喜欢中国菜。

common A2 adjective

常见的或普遍的。经常发生或在很多地方都能看到的东西。

vampire A1 noun

吸血鬼是传说中通过吸食活人血液维生的生物。他们通常被描述为拥有尖牙,且害怕阳光。

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