Joy English · Level B2 · Naturejoy-english.com
Sleeping standing up
Name:Date:
Follow an explanation with examples from nature.
Listen to each sentence and write what you hear.
Audio and answer checking: https://joy-english.com/listening-lessons/sleeping-standing-up
Words to know
- joint
- A place where two bones meet, such as the knee.
- predator
- An animal that hunts and eats other animals.
- flamingo
- A tall pink bird with long legs.
Answer key
- Horses can sleep lightly while standing up.“Lightly” here means not deeply.
- Their legs have a special system that locks the joints in place.“Locks the joints in place” means stops them from bending.
- This allows them to run away quickly if a predator appears.The stress in “predator” is on “pred”.
- However, they still need to lie down for deep sleep.“Lie down” means put your body flat.
- Flamingos often rest on one leg, possibly to save body heat.“Possibly” shows the reason is not certain.