阅读下列短文,从每题所给的A、B、C和D四个选项中,选出最佳选项。Over the past two weeks, I've lost my passport, barked at a neighbor and published a picture of myself wearing a kid's superhero costume. Forgetfulness, anger and poor decision-making are all signs of sleep shortage.And I'm not alone."I average around six hours a night," admits Paul, who's lived in Shanghai for three years. "But how much of that is deep sleep, I don't know."Lisa works in a hotel. "I struggle to switch off," she says, "a glass of red wine with dinner helps."March 21 is the World Sleep Day, an annual event in celebration of slumber, or sleep. When sleep problems become a global epidemic, it's time to ask: "Am I getting enough?"The lack of sleep throughout industrialized nations is damaging our health, wellness and safety. We're dog-tired, the impact of which is enough to keep anyone up at night.A global experiment is performed on 1.6 billion people across 70 countries twice a year: daylight savings. When one hour of sleep is lost in spring, there's a 24 percent increase in heart attacks, and in autumn, when the hour is regained, a 21 percent reduction.Good sleep increases concentration, attention and decision-making. Creativity goes up, and our ability to find novel solutions to complex problems is hugely improved. Sleep reduces mood swings and stress levels. We drink less alcohol and make better food choices when rested.Take sleep seriously. It's not a luxury, but a biological necessity. It's our life-support system and let it be our superpower.
(1)
Why does the author mention his own experiences in Paragraph 1?
A . To draw attention to his situation.
B . To complain about lacking sleep.
C . To introduce the topic of the text.
D . To raise a question about deep sleep.
(2)
What does the underlined phrase "switch off" in Paragraph 4 mean?
A . Turn off.
B . Disinterest someone.
C . Stop talking.
D . Fall asleep.
(3)
What is the finding of the global experiment?
A . The loss of sleep increases the risk of heart attacks.
B . Short sleep is linked to mental health problems.
C . Good sleep leads to better work performances.
D . Red wine is effective in treating sleeplessness.
(4)
What does the author suggest about sleep?
A . Celebrating the World Sleep Day.
B . Paying attention to sleep problems.
C . Getting six hours' sleep every day.
D . Taking sleeping pills when necessary.
答案: C
D
A
B