Not even the sea is safe from the glare （強(qiáng)光） of humans' light at night.Researchers published the first global map of ocean light pollution.It shows large parts of the sea are lit up at night.And that risks confusing or disrupting the behaviors of sea life.
Tim Smyth led a team to research where in the water this light is strongest.Smyth and his colleagues started with a world map of man-made night-sky brightness that had been created in 2016.Then they added data on the ocean and atmosphere.Some data came from shipboard measurements of man-made light in the water.Others came from satellite images that judge how clear the water is.Particles（微粒）in the water，such as tiny floating plants and animals，can affect how far downward light travels.These factors vary from place to place and may change with the seasons.The team also used computers to copy how different wavelengths of light move through water.
Next，they wanted to know how that underwater light might affect animals.Not all species will be easily affected.The team focused on copepods （橈足亞綱甲殼動(dòng)物）.These common creatures are a key part of many ocean food webs.They use light as a signal to move all together to the dark deep，seeking safety from other surface creatures.Normally they use the sun or the winter moon as their signal.Too much man-made light can mess up their usual patterns.
Light pollution is strongest in about three feet of the water.Here，man-made light can be strong enough to confuse the copepods.Nearly 2 million square kilometers of ocean get such strong night light.That's an area about the size of Mexico.Farther down，the light gets weaker.But even 65 feet deep，it's still bright enough to bother copepods across 840，000 square kilometers of ocean.
The team described its findings December 13 in Elementa：Science of the Anthropocene.
（1）What do we know about copepods from the passage？ CC
A．They are main eaters of other creatures.
B．They are not affected by underwater light.
C．They can escape attacks with the help of light.
D．They can weaken the effect of man-made light.
（2）How does the author show the seriousness of light pollution in Paragraph 4？ BB
A．By stating opinions.
B．By listing numbers.
C．By raising questions.
D．By giving reasons.
（3）Which of the following can is a suitable title for the text？ DD
A．Light Pollution from Sea Life
B．Living Conditions of Copepods
C．Discoveries of Copepods
D．Light Pollution Even in Sea
【考點(diǎn)】自然科學(xué)研究成果；說明文．
【答案】C；B；D
【解答】
【點(diǎn)評(píng)】
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發(fā)布：2024/4/20 14:35:0組卷：2引用：1難度：0.5
相似題
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1．Are people less or more happy when they get older？A study in 2018 found that people generally become happier and experience less worry after age 50.In fact，it found that by the age of 85，people are happier with their life than they were at 18.
Arthur Stone in the Department of Psychiatry and Behavioral Science at Stony Brook University in New York led the study.His team found that levels of stress were the highest among adults between the ages of 22 and 25.（1）
Happiness was the highest among the youngest adults and those in their early 70s.But the people least likely to report feeling negative emotions were those in their 70s and 80s.The survey also found that men and women have similar emotional patterns as they grow older.（2）
The researchers also considered possible influences like having young children，being unemployed or being single.But they found that influences like these did not affect the levels of happiness and wellbeing related to age.
（3）One theory is that，as people get older，they become more thankful for what they have and have better control of their emotions.They also spend less time thinking about bad experiences.
（4）In another study，people in their 80s reported the fewest problems with the quality of their sleep.The original goal was to confirm the popular belief that aging is connected with increased sleep problems.（5）But except for that，people reported that they felt their sleep quality improved as they got older.
A.So why will happiness increase with age？
B.Researchers surveyed more than 150，000 American adults.
C.At that time，the people were between the ages of 18 and 85.
D.Stress levels dropped sharply after people reached their 50s.
E.Happiness is not the only thing that apparently improves with age.
F.The survey did find an increase during middle age，especially in women.
G.However，women at all ages reported more sadness，stress and worry than men.發(fā)布：2024/12/14 13:30:1組卷：13引用：1難度：0.5 -
2．Research suggests that at least 64% of people now spend up to four hours daily of spare time in front of a screen.Just as TV watching has been linked to higher chances of being fat and getting diseases，this extra sedentary（久坐不動(dòng)） time is bad news for our health.（1）
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Choose outdoor activities over technology
When you're at home，make it a rule that you can't be online if the sun is shining.（2）.Then，after taking these healthy physical activities，you can pull out your phone or tablet，or take a seat at the computer.This rule should be fit for everyone in your family.
Limit social media use
According to some experts，the effect of technology on human relationships is worrying as technology has become a substitute for face-to-face human relationships.And Social networks have changed computer and mobile use for people of all ages.（3）.Avoid aimless browsing（瀏覽）and give your time online a purpose：research holidays or catch up on the news of the day.Then log off.
（4）.
Challenge yourself to read at least 30 pages of a great book before you check your computer or mobile phone.Pick the right reading material and you'll soon find you've discovered an enjoyable pastime.
Create projects for yourself
It's amazing how much you can achieve when you're not glued to（長(zhǎng)時(shí)間盯著）a screen.（5）.Some suggestions are organizing kitchen cupboards，cleaning your bedroom.Then try to do one each evening.
A.Set aside reading time
B.Choose the suitable reading materials
C.Make a list of one-hour evening projects
D.Here are some ways to stop technology addiction
E.Whether it's Facebook or Twitter，limit the time online
F.The following are some ways to make better use of leisure time
G.Instead，you have to go for a walk，ride a bike，or swim at least an hour發(fā)布：2024/12/19 3:0:1組卷：11引用：1難度：0.5 -
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