Two sleeps per night - Test 4

C1 Advanced · Word Formation · Cambridge English Advanced 1, Cambridge University Press

For questions 1–8, read the text below. Use the word given in capitals at the end of some of the lines to form a word that fits in the gap in the same line.

COMFORT

SYMPTOM

INTERRUPT

ESSENCE

CUSTOM

AFFORD

PROGRESS

ABLE

Sometimes we wake up in the middle of the night and try (0) ___ hard to get back to sleep, but instead we spend a really (17) ___ night tossing and turning until morning. This situation could be (18) ___ of a stressful week, but it could also be because of a sleep pattern we have inherited. Research shows that our ancestors, rather than enjoying an (19) ___ period of sleep at night, had two sleeps broken up by some time awake. The eight-hours-a-night pattern that has become almost (20) ___ to modern humans has only been (21) ___ in industrialised countries since the 19th century. Then (22) ___ electricity was introduced, which resulted in a division between night and day that became (23) ___ blurred. What had until then been daytime activities could now be enjoyed after darkness, and as a result, we went to bed later. We were therefore more tired, and this (24) ___ us to sleep through the night. However, scientists believe that, subconsciously, some people may still follow the old patterns and have a lengthy period of wakefulness during the night.

Two sleeps per night

DESPAIR

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