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全国卷2021届高考下学期4月模拟题3(英语 解析版)
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    资源子类高考模拟
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    所属学科高中英语
  • 适用年级高三年级
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  • 更新时间2022/9/19 9:02:48
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A

2021·湖北高三月考)    A strong coffee after a poor night's sleep is the kick-start many people need in the morning but new research suggests that it might be best to have a bite to eat first.

A study has found that drinking coffee first can have a negative effect on blood sugar control - a risk factor for diabetes (糖尿病)and heart disease.

“We know that nearly half of us will wake in the morning and, before doing anything else, drink coffee --- subjectively the more tired we feel, the stronger the coffee,“ said Professor James Betts, at the University of Bath in the UK.

For their study, researchers at the University of Bath got 29 healthy men and women to take part in three different overnight experiments, with at least a week between them.

In one, the participants had a normal night's sleep, roughly from 11 p.m. to 7 a.m., and were asked to consume a sugary drink on waking in the morning. They then experienced an interrupted night's sleep, where the researchers woke them every hour for five minutes by sending them text messages to which they had to respond — and upon waking were given the same sugary drink.

On another night, participants experienced the same sleep interruption, but this time were first given a strong black coffee 30 minutes before consuming the sugary drink.

They found that one night of interrupted sleep did not worsen the participants' blood sugar and insulin (胰 岛素)responses when compared to the normal night's sleep-- although previous research suggested that losing many hours of sleep or many nights of poor sleep could have a negative effect. However, strong black coffee consumed before breakfast actually increased the blood sugar response by around 50% — suggesting that relying on coffee after a bad night to stop feeling sleepy could limit your body's ability to tolerate the sugar in your breakfast.

1What does the underlined word “kick-start" in paragraph 1 refer to?

AA kind of sport.                     BA kind of power.

CA kind of medicine.                  DA kind of belief.

2What was unchanged in the three experiments?

AThe duration of sleep.               BThe blood sugar response.

CThe sugary drink.                    DThe intake of coffee.

3What increased the participants' blood sugar response most before breakfast?

AA normal sugary drink.

BA normal night's sleep.

CAn interrupted night's sleep.

DA cup of strong black coffee.

4How did researchers draw the conclusion?

ABy comparing the results.

BBy listing some examples.

CBy surveying the participants.

DBy referring to some documents.

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