News From Science 1

Pronunciation

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Vocabulary List

gluttony
(noun) the act or habit of eating too much
 
ripple
(verb) to spread through a person, group, or place
 
satiate
(verb) to fully satisfy a need or desire
 
prey
(noun) an animal that is hunted and eaten by another animal

Paraphrase

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Every 17 years, billions of cicadas come out in the eastern United States.
For their predators, it looks a like a party with a lot of food.
Birds easily hunt and eat those cicadas and ignore their usual prey of caterpillars.
As a result, the ecosystem is affected.

Grammar

Every 17 years, billions of cicadas emerge in the eastern United States, providing an all-you-can-eat buffet for their predators.
 
– Is “every 17 years” grammatically correct?
– There is an -ing form (providing) in the sentence, but there isn’t any verb be. Can we do this?
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