Plenty of exercise improves the academic performance （學習成績） of teenagers，according to new research．
The study，of about 5，000 children，found links between exercise and exam success in English，maths and science．It found an increase in performance for every extra 17 minutes exercise for boys，and 12 minutes for girls．
The study by the University of Strathclyde and the University of Dundee found physical activity particularly benefited girls' performance in science．The authors said this could be a chance to find or reflect gender differences in the impact （影響） of physical activity on the brain．
Most of the teenagers' exercise levels were found to be well below the recommended 60 minutes a day．The authors wondered what might happen to academic performance if children got the recommended amount．
They claimed that since every 15 minutes of exercise improved performance by an average of about a quarter of a grade，it was possible for children who carried out 60 minutes of exercise every day to improve their academic performance by a full letter grade - for example，from a C to a B，or a B to an A．
However，the authors admitted this was speculation given that very few children did this amount of exercise．
Dr．Josie Booth，one of the leaders of the study，from the University of Dundee said， "Physical activity is more than just important for your physical health．There are other benefits and those are something that should be especially important to parents，policymakers and people involved in education．"
The authors of the study，published in the British Journal of Sports Medicine，said further research backing the findings could have implications for public health and education policy．
（1）What does the passage mainly talk about？ BB
A．The relationship between exercise and gender．
B．The relationship between exercise and academic performance．
C．The relationship between exercise and brain activity．
D．The relationship between exercise and health condition．
（2）The underlined word "speculation" in Paragraph 6 probably means " AA"．
A．guess
B．contribution
C．a(chǎn)dvice
D．conclusion
（3）What can we learn from what Dr．Josie Booth said？ BB
A．Physical activity leads to good health．
B．Physical activity offers a lot of benefits．
C．Students should spend more time on exercise．
D．Physical exercise should be introduced to schools．
【考點】傳統(tǒng)習俗與文化．
【答案】B；A；B
【解答】
【點評】
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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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