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Researchers from London's Queen Mary University studied how participants were affected by pollution based on where they live.In the journal Circulation on Friday,the scientists revealed that air pollution can harm the heart to the point where it resembles (類似) the early stages of heart failure.
    According to Emory Healthcare,deaths have decreased around 12 percent per decade on average over the past 50 years,but 287,000 people die from heart failure each year.There are more hospitalizations from heart failure each year than all cancers combined.
    In this study,the scientists examined information from 4,000 participants that were in the UK Biobank study.Volunteers had blood tests,health scans and heart MRIs,which measured the function,size and weight of their hearts.They also recorded their lifestyle,health record and where they've lived.
    The team found participants had larger right and left ventricles (心室) in the heart when they lived closer to busy roads and were exposed to nitrogen dioxide (NO2),which enters the air when fuel is burned.The right and left ventricles are crucial for pumping blood.They were healthy but resembled the ventricles in early stage heart failure.The scientists found that the higher the exposure to the pollutants,the greater the changes in the heart.
    "Air pollution should be seen as a modifiable risk factor," Dr.Nay Aung,who led the data analysis of the study,said in a statement from Queen Mary University. "The public all need to be aware of their exposure when they think about their heart health,just like they think about their blood pressure and their weight."
    Professor Jeremy Pearson,Associate Medical Director at the British Heart Foundation,said in the statement from Queen Mary University, "We can't expect people to move home to avoid air pollution,so government and public bodies must act right now to make all areas safe and protect the population from these harm."

(1)What is the finding of the study?
D
D

A.Air pollution causes many people to die.
B.People have big problems of heart health.
C.People's houses have a great effect on the heart.
D.Air pollution makes our hearts at risk of heart failure.
(2)What does paragraph 2 mainly tell us about heart failure?
B
B

A.It can be cured easily.
B.It remains a serious threat.
C.It's the most common illness.
D.It causes people to suffer cancers.
(3)What did the team find on the participants exposed to air pollution?
B
B

A.They had many health problems.
B.Their ventricles worked better.
C.Their hearts were out of danger.
D.The size of their hearts was bigger.
(4)Which of the following is Dr.Nay Aung's suggestion?
C
C

A.Moving to safer areas.
B.Living far away from crowds.
C.Taking notice of air pollution.
D.Taking blood pressure regularly.

【考點】說明文
【答案】D;B;B;C
【解答】
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發(fā)布:2024/5/27 14:0:0組卷:1引用:1難度:0.6
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