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The bad health effects of sleep loss during the week can't be repaid by longer weekend sleep，according to a new study.
   Researchers have long known that sleep deprivation （剝奪）can cause weight gain and increase other health risks.But for those who force themselves out of bed every weekday after too few hours of shut-eye，they hope turning off the alarm on Saturday and Sunday will repay the weekly sleep debt and remove any ill effects.
   The research，published in Current Biology，crushes those hopes.Despite complete freedom to sleep during a weekend recovery period，people in a sleep lab who were limited to five hours of sleep on weekdays gained nearly three pounds over two weeks and experienced disorders that would increase their risk for diabetes over the long term.While weekend recovery sleep had some benefits after a single week of sleep loss，those gains were wiped out when people fell right back into their same sleep-deprived schedule the next Monday.
   "If there are benefits of catch-up sleep，they're gone when you go back to your daily schedule.It's very short-lived，" said Kenneth Wright，director of the sleep and chronobiology lab at the University of Colorado at boulder. "These health effects are long-term.It's kind of like smoking once was-people would smoke and wouldn't see an immediate effect on their health，but people will say now that smoking is not a healthy lifestyle choice.I think sleep is in the early stage of where smoking used to be. "
   Wright said that the study suggests people should put sleep in the first place-cutting out the "sleep stealers" such as watching television shows or spending time on their phones.Even when people don't have a choice about losing sleep because of child-care responsibilities or job schedules，they should think about getting sleep in the same way they would get a healthy diet or exercise.

（1）What do the researchers find about weekend recovery sleep？
C
C

A．It is common among people.
B．It will make people healthier.
C．It can make people put on weight.
D．It's able to make up for the sleep loss.
（2）What does the underlined word "crushes" mean？
D
D

A．Arouses.
B．Guarantees.
C．Deepens.
D．Ruins.
（3）What will Kenneth Wright agree with？
A
A

A．It takes long for people to see the effects of sleep loss.
B．Smoking and sleep loss have the same bad effects.
C．Weekend recovery sleep has many benefits.
D．Smoking is more harmful than sleep loss.
（4）What does Kenneth Wright advise people to do？
C
C

A．Sleep as long as possible during weekdays.
B．Watch some TV shows before bedtime.
C．Reduce the screen time before sleep.
D．Take regular exercise every day.

【考點(diǎn)】說(shuō)明文．
【答案】C；D；A；C
【解答】
【點(diǎn)評(píng)】
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發(fā)布：2024/4/20 14:35:0組卷：9引用：1難度：0.6
相似題

  • 1．A first-year undergraduate student in Chengdu，recently complained online that her mother refused to raise her monthly allowance to 4，500 yuan（＄633）even when she said her current allowance 2，000 yuan was not enough to cover her expenses，sparking a debate on how much money a college student needs per month.One expert shares his views on the issue with China Daily：Students should pursue education，not comfort.
       Even for a college student studying in a first-tier city in China，2，000 yuan is enough to cover all his or her monthly expenses.In fact，for a college student in Chengdu a monthly allowance of 2，000 yuan is more than enough.According to a survey conducted by a bookkeeping platform，the average monthly expense for an undergraduate in cities other than Beijing，Shanghai and Hangzhou was less than 2，000 yuan in 2019；for Chengdu，it was 1，900 yuan.
       Claiming that she can hardly afford new clothing and cosmetics with her 2，000 yuan monthly allowance，the undergraduate student in Chengdu criticized her mother for refusing to raise her pocket money.Her "meager" allowance，she said，prevented her from buying branded goods that her hostel-mates enjoyed.
       By the time a person enters a college，she or he should have developed a healthy consumption habit.And a youth should adjust her or his consumption according to her or his family income.On a deeper level，the money they spend in college should depend on how much they value their parents' hard work.Besides，some college students could take up part-time jobs to meet their monetary needs if they feel their parents don't or can't send them enough money.In this way they can also learn to meet the requirements of life in the future and develop healthy consumption habits.More importantly，they should always bear in mind that education is their top priority in college.

    （1）What's the expert's attitude to the issue about the undergraduate student？

    A．He was critical.
    B．He was neutral.
    C．He was supportive.
    D．He was unconcerned.
    （2）In 2019，the undergraduates' average monthly expense in Hangzhou was
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    A．more than 2，000 yuan
    B．633 dollars
    C．less than 2，000 yuan
    D．1，900 yuan
    （3）Which of the following best explains "meager" in paragraph 3？

    A．Empty.
    B．Pitiful.
    C．Mean.
    D．Fruitful.
    （4）What does the last paragraph mainly talk about？

    A．College students should keep their expenses in line with their family conditions.
    B．College students' consumption level is determined by their parents.
    C．College students should take up a part-time job to cover their expenses.
    D．College students should deal with their living expenses problems reasonably.

    發(fā)布：2024/11/19 19:30:2組卷：13引用：2難度：0.5

  • 2．While traveling，there are chances that you stay at a hotel or a family member's house．But have you ever thought about staying in a stranger's （1）
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    （8） A．still B．yet C．a(chǎn)lways D．even
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    發(fā)布：2024/11/18 21:30:2組卷：49引用：2難度：0.5

  • 3．Malaria，the world's most widespread parasitic （寄生蟲引起的） disease，kills as many as three million people every year，almost all of whom are under five，very poor，and African.In most years，more than five hundred million cases of illness result from the disease，although exact numbers are difficult to assess（評(píng)估） because many people don't （or can't） search for care.It is not unusual for a family earning less than two hundred dollars a year to spend a quarter of its income on malaria treatment，and what they often get no longer works.In countries like Tanzania，Mozambique，and the Gambia，no family，village，hospital，or workplace can remain unaffected for long.
       Malaria starts suddenly，with violent chills，which are soon followed by an intense （強(qiáng)烈的）fever and，often，headaches.As the parasites multiply（增加），they take over the entire body.Malaria parasites live by eating the red blood cells they infect （感染）.They can also go into blood vessels in the brain.If it doesn't kill you，malaria can happen again and again for years.The disease passed on to humans by female mosquitoes（蚊子） infected with one of four species of parasite.Together，the mosquito and the parasite are the most dangerous couple in the history of the earth.Malaria has five thousand genes，and its ability to change rapidly to protect itself from attack and resist（抵抗） new drugs has made it nearly impossible to control.Studies show that mosquitoes are passing on the virus more frequently，and there are more outbreaks in cities with large populations.Some of the disease's spread is due to global warming.
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    （1）According to paragraph 1，many people don't search for care because
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    發(fā)布：2024/11/17 10:0:3組卷：2引用：1難度：0.6
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