【2017高考复习】阅读理解

　　What happens inside the skull of a soccer player who repeatedly heads a soccer ball？That question motivated a challenging new study of the brains of experienced players that has caused discussion and debate among soccer players，and some anxiety among those of us with soccer­playing children.

　　For the study，researchers at the Albert Einstein College of Medicine in New York selected 34 adults，men and women.All of the volunteers had played soccer since childhood and now competed year­round in adult soccer leagues.Each filled out a detailed questionnaire developed especially for this study to determine how many times they had headed a soccer ball in the previous year，as well as whether they had experienced any known concussions (脑震荡) in the past.

　　Then the players completed computerized tests of their memory and other learning skills and had their brains scanned，using a complicated new MRI technique which can find structural changes in the brain that can’t be seen during most scans.

　　According to the data they presented at a Radiological Society of North America meeting last month，the researchers found that the players who had headed the ball more than about 1,100 times in the previous 12 months showed significant loss of white matter in parts of their brains involved with memory，attention and the processing of visual information，compared with players who had headed the ball fewer times.

【2016年重庆渝中区高考英语阅读理解一轮选练（11）及答案】相关文章：

★ 2017届高考英语二轮复习课时训练：22（含解析）

★ 重庆市2014高考英语阅读理解一轮（精品）训练题（11）附答案

★ 常熟市2014高考英阅读理解语一轮（暑假）训练题（12）及答案

★ 贵州省贵阳市2014高考英语（新人教版）一轮阅读训练（6）附答案

★ 2014届高考英语一轮复习必修3参考答案（外研版）

★ 贵州省贵阳市2014高考英语（新人教版）一轮阅读训练（29）附答案

★ 辽宁省辽阳市2014高考英语单项选择一轮（暑假）训练（14）附答案

★ 湖南省岳阳市2014高考英语一轮单项选择训练题（15）及答案

★ 重庆市2014高考英语阅读理解一轮（精品）训练题（9）附答案

★ 贵州省贵阳市2014高考英语（新人教版）一轮阅读训练（24）附答案