Задания 26-31



Преобразуйте, если необходимо, слова, напечатанные заглавными буквами, так чтобы они грамматически и лексически соответствовали содержанию текста. Каждый пропуск соответствует отдельному заданию из группы 26-31. Впишите слова в поле ответа.



Why do we sleep?


A recent study may have an answer to one of the greatest unsolved mysteries in science — what is the purpose of sleep? The work suggests it’s ___REAL___ about making animals function more efficiently in their environments. ___SCIENCE___ from the University of California, Los Angeles, conducted a study of the sleep times of a broad range of animals. They discovered much variation. You may think it ___POSSIBLE___ but some migrating birds can fly non-stop for up to 90 hours.

Pythons and bats are among the longest ___SLEEP___ at over 18 hours a day. Human babies need 16 hours and their health and intellectual ___DEVELOP___ depend on sleeping properly. Most of us probably feel we need around eight hours sleep to function well. Some people have ___DIFFICULT___ in getting enough sleep and this may lead to serious health problems.




Аудирование Чтение Языковой материал Письмо Говорение