개인적인 복습 지문 pick (170638)

In humans, body clocks are responsible for daily changes

in blood pressure, body temperature, hormones, hunger,

and thirst, as well as our sleep-wake cycles. ( ① )

These biological rhythms, which we experience as

internal time, are probably older than sleep, developed

over the course of millions of years of evolution. ( ② )

They facilitate physiological and behavioral changes on

a roughly twenty-four-hour cycle no matter what is

happening outside, whether a cold front moves in or

clouds block the light of the sun. ( ③ That is why

people experience jet lag when traveling across time

zones.) Their internal clocks continue to run in

accordance with the place they left behind, not the

one to which they have come, and it can take some

time to realign the two. ( ④ ) The most remarkable

thing is that our internal body clocks can be

readjusted by environmental cues. ( ⑤ ) We may get

jet lag for a few days when we ask our body clocks

to adapt to a vastly different schedule of day and

night cycles on the other side of the Earth, but they

can do it. [3점]

* facilitate: 쉽게 하다   ** realign: 재조정하다

출처: 2017학년도 6평 영어 38번 문항