四川省宜宾市2024-2025学年高一上学期期末联考英语试题(扫描版无答案）

D
A small Swedish study found evidence of increased melatonin (in healthy adults
This century,many countries will face a difficult situation:how to balance buman needs
who used a weighted blanket before bed.
with the requirements of natural systems that are vital for sustaining life on Earth The United
For many people who struggle with anxiety and poor sleep,weighted blankets are one
Nations recently outlined the exten of the problem,saying that 2.7 billion people would face
cozy,wellness luxury well worth the small investment.Many shoppers swear by the calming
severe water shortages by 2025 if consumption continues at current rates.Today,an estimated
benefits of weighted blankets,reporting better sleep,lower stress and anxiety,and overall
1.2 billion people drink unclean water,and about 2.5 billion lack proper toilets or waste
increased feelings of relaxation.
disposal systems.More than five million people die each year from diseases related to unclean
water.All over the globe,humans are taking water out of the ground faster than it can be
But scientifically speaking,there aren't many studies to conturm the benefits of lying
refilled.
under a weighted blanket.That's why researchers from Uppsala University in Sweden carry out
In this difficult situation,water conservationists,such as Rajendra Singh in India,are
a small study to find out whether using a weighted blanket-compared to using a light blanket
working to find solutions to the water crisis.They have found creative ways to improve their
-can actually help boost sleep-promtoring chemicals,such as melatonin and oxytocin.
local water situations.
Twenty-six young,healthy adults participated in the study.In stage one they were covered
Rajendra Singh in India together with his organization would provide the engineering
with a weighted blanket (weighing about 12 percent of their body weight)for one hour before
advice and materials;the villagers would supply the work.The 30-foot-high earthen dam and
bedtime,followed by an eight-hour sleep wmaow.Researchers collected saliva (samples
reservoir )known as a jobad.could be finished in three months,before the start of the
during the pre-sleep hour to measure changes in melatonin and other hormone (
rainy season.If the rains were plentitul,the reservoir would not only provide enough surface
materials.In stage two,participants were covered with a light blanket (2.4 percent of their body
water for drinking and agriculture,but would also refill dry wells.
weight)for the night
In recent years,Singh's johads have sprung up all over Rajasthan-about 4,500 dams in
In the end,the results found that when participants laid under a weighted blanket for an
about 1,000 villages."If the villagers feel a johad is their own,they will maintain it,"said
hour before bedtime,they showed about a 32 percent increase in salivary melatonin compared
Singh."This is a very sustainable,self-reliant system.I can say confidently that if we can
manage rain in India in traditional ways,there will be sufficient water for our growing
to when they used the lighter blanket
population."
"Our study is the first to suggest that using a weighted blanket may result in a more
Some people still hope that new technology,such as the desalination (of seawater,
significant release of melatonin at bedtime,"the study says,adding that more studies are
needed to find whether more melatonin will be produced during a whole night's sleep when
will solve the world's water problems."But the fact is,water conservation is where the blg
gains are to be made,"says Sandra Postel of the Global Water Policv Project.The job that
frequently using a weighted blanket over weeks to months.
people like Rajendra Singh do offers inspiration for carrying out timel and lasting solutions to
While this study is quite small and just a first step exploring the health benefits of
the world's water concers.
weighted blankets,it does suggest that this cozy blanket may indeed positively promote sleep.
32.What can we learn from Paragraph 1
28.Why are people who struggle with sleep problems mentioned
A.Much more water is needed nowadays than before.
A.To introduce the participants of the experiment.
B.Water problems are rather serious nowadays worldwide.
B.To illustrate the reason of the experiment.
C.Waste disposal systems are vital for sustaining life on Earth.
C.To show the conclusion of the experiment
D.Many countries will work together to deal with water problems.
D.To wamn the influence of bad sleeping.
33.What were the villagers able to do for Rejendra Singh's johads
29.What does the underlined word "boost"in Paragraph 3 probably mean
A.Provide materials and own the johads.
A.Change.
B.Reduce.
B.Offer their labour and maintain the johads.
C.Carry
D.Improve.
C.Build johads and improve the water situation.
D.Give engineering advice and offer their own solutions.
30.What can we leam about the experiment
34.In Sandra's opinion,what is the best solution to the world's water problems
A.It lasts at least for 8 hours.
A.Water conservation.
B.New technology.
B.It is successful and there is no need to carry on.
C.The desalination of seawater.
D.Rajendra Singh's johads
C.It suggests a weighted blanket may result in a better sleep.
35.What is the text mainly about
D.It reveals more melatonin is produced during a whole night's sleep.
A.An effective and practical way to deal with water problems.
31.What could be the best title for the text
B.The environment problems which are becoming worse and worse
A.How to Have a Good Sleep
B.A Weighted Blanket or a Light One
C.Water problems outlined by the United Nations.
C.A Study on Sleep Regulation
D.Melatonin and Sleep
D.Water shortage all over the world.
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