A new study shows that air pollution can cause a huge reduction in our intelligence.The study was a project involving researchers at Peking University in China and Yale University in the United States.
The researchers reported that long-term exposure to air pollution can affect a person's mental abilities in two areas:Language and math.
The researchers studied about 25,000 people from across China.Between 2010 and 2014,these Chinese men,women and children were given language and math tests.Then researchers compared the test results with measurements of pollution in the air,namely nitrogen dioxide and sulfur dioxide(二氧化硫).
Xi Chen of the Yale School of Public Health led the study.He and his team found that breathing polluted air can reduce a person's education level by about one year.
Chen said that the effect generally is worse for those over 64 years of age,for men and for those with little or no education.
"The older persons-they are more affected.And we find,quite amazingly,males are more affected than females.And people working outdoors are more affected than people working indoors."
He noted that the youngest people in the study were 10 years old,while the oldest was 90 years old.They came from China's 33 provinces.In his words,the data and facts are convincing and this range of ages and locations across the country provided a real,objective and representative sample.
The researchers noted that the effect of air pollution on verbal ability is even more serious as people age,especially among men and the less educated.The researchers also stressed that every country,whether developed,developing or poor,should focus on air pollution or humans will face a bad situation.
(1)What is the result of the study?BB
A.Females are more affected by air pollution than males.
B.Air pollution has a bad effect on people's intelligence.
C.Americans are more affected by air pollution than Chinese.
D.People working indoors are actually not affected by air pollution.
(2)What did Chen say about the study?DD
A.It is doubtful.
B.It is extremely unfair.
C.It is common and not representative.
D.It is relatively objective and persuasive.
(3)What did the researchers emphasize in the last paragraph?BB
A.The data from the 33 provinces is convincing.
B.The whole world should pay attention to air pollution.
C.The less educated take more responsibility for air pollution.
D.Air pollution's influence on verbal ability is less serious as people age.
(4)Where is the text most likely taken from?DD
A.A life diary.
B.A guidebook.
C.A biography.
D.A science magazine.
【答案】B;D;B;D
【解答】
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發(fā)布:2024/5/27 14:0:0組卷:3引用:1難度:0.5
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These forests are at the tops of mountains,generally near the equator (赤道).These wet,wooded mountaintops are mainly in African and Central and South American countries.They are called "cloud forests" because their height allows for the formation of clouds among the trees.The trees in these forests pull water out of the clouds.The water gathers on the leaves and falls into small rivers below,which flow into towns at the bottom of the mountain.The yearly rainfall in these areas is about 180 centimetres.Cloud forests can pull in up to 60 percent of that.The water is important to the plants and the people in the area.It helps them survive.
Cloud forests are also home to countless species of plants that can't be found anywhere else.One small cloud forest has as many types of plants as there are in all of Europe.In fact,there are so many that scientists haven't made a complete list of them yet.
These forests are being destroyed at increasing speed.Trees are being cut down,and roads are being built in their place.Some people have a goal to get government money to protect the forests.But they have had little success so far.Another way is to take the place of the destroyed plants with new ones.That,too,has been difficult because the plants are so special.There's plenty of work to be done,but saving the cloud forests is still possible with creative solutions.
(1)Where can you probably find cloud forests?
A.In North America.
B.Far from the equator.
C.In an African country.
D.At the foot of mountains.
(2)How much rainfall is pulled in by the cloud forests in those areas every year?
A.About 60 cm.
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(3)What is the main idea of paragraph 3?
A.Europe is short of plant types.
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B.Goals of cloud forest protectors.
C.Difficulties in planting new trees.
D.Successes of getting wide support.
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A.In a storybook.
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D.In a geography magazine.發(fā)布:2025/1/1 18:0:1組卷:7引用:3難度:0.5 -
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D.he likes to go to places that few people bother to visit發(fā)布:2025/1/1 18:0:1組卷:20引用:3難度:0.7 -
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A.To reduce the difficulty of the experiment.
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