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B1 Intermediate English 4:54 647 words Educational

This is the most common way to get head lice - Nazzy Pakpour

TED-Ed · 254,212 views · Added 2 months ago

AI Summary

This educational animation dives into the biology of head lice — how they feed, reproduce, and spread between humans. Perfect for B1 learners building science vocabulary, you'll pick up terms like 'parasites,' 'infestation,' 'retractable,' 'symbiotic bacteria,' and 'insecticide.' The clear narration and structured explanation make it great listening practice for intermediate English students.

Learning Stats

B1

CEFR Level

647

Total Words

342

Unique Words

5/10

Difficulty

Vocabulary Diversity 53%

Subtitles (34 segments)

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00:06

The six-legged creature creeps down the canopy, extends its slender trunk, and pierces the ground.

00:13

Up comes blood. This is no regular forest.

00:17

Living where the scalp meets the hair, these nightmarish figures are, in fact, sesame seed-sized insects, otherwise known as head lice.

00:28

The earliest archaeological evidence of humans’ close-knit relationship with lice is a fully preserved egg, discovered in the hair of a 10,000-year-old Brazilian mummy.

00:40

And it seems that for as long as we’ve had lice, we’ve fought hard to get rid of them.

00:46

Nit combs, the fine-tooth brushes used to remove lice and their sticky eggs have been found among the ancient remains of cultures across the globe.

00:56

This battle continues today, as it's estimated we spend billions of dollars each year treating infestations.

Full subtitles available in the video player

Key Vocabulary (20)

body A1 noun

The whole physical structure of a person or animal, including the bones, skin, and internal organs. It is used to describe the entire physical being of a living or deceased entity.

ancient A2 adjective

Something is ancient if it belongs to a time in the very distant past, usually thousands of years ago. It can also describe something that is extremely old or no longer modern in a more general sense.

year A1 noun

A year is a period of time that lasts 365 days, or 366 days in a leap year. It represents the time it takes for the Earth to complete one full revolution around the Sun.

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