Young Adults Who Exercise Get Higher IQ Scores
　　Young adults who are fit have a higher IQ1 and are more ____1____ to go on to university, reveals a major new study2 carried out at the Sahlgrenska Academy3 and Sahlgrenska University Hospital.
　　The results were recently published in the Proceedings of the National Academy of Sciences (PNAS)4.The study involved 1.2 million Swedish men doing military service who were born between 1950 and 1976. The research group analyzed the ____2____ of both physical and IQ tests the youngsters took right after they started serving the army.
　　The study shows a clear link ____3____ good physical fitness and better results for the IQ test. The strongest links are for ____4____ thinking and verbal comprehension. But it is only fitness that plays a ____5____ in the results for the IQ test5, and not strength. “Being fit means that you also have good heart and lung ____6____ and that your brain gets plenty of ____7____，” says Michael Nilsson, professor at the Sahlgrenska Academy and chief physician at the Sahlgrenska University Hospital. “This may be one of the reasons ____8____ we can see a clear link with fitness, but not with muscular ____9____. We are also seeing that there are growth factors that are important.”
　　By analyzing data for twins, the researchers have been ____10____ to determine that it is primarily environmental factors and not genes that explain the link between fitness and a ____11____IQ.
　　“We have also shown that those youngsters who ____12____ their physical fitness between the ages of 15 and 18 increase their cognitive performance,” says Maria Aberg, researcher at the Sahlgrenska Academy and physician at Aby health centre. “This being the case6，physical ____13____ is a subject that has an important place in schools, and is an absolute must if we want7 to do well in maths and other theoretical subjects.”
　　The researchers have also compared the results from fitness tests ____14____ national service8 with the socio-economic status of the men later in ____15____. Those who were fit at 18 were more likely to go into higher education, and many secured more qualified jobs.
　　词汇：
　　proceedings 学报，论文集 comprehension 理解
　　Swedish 瑞典的 muscular 肌肉的
　　注释：
　　1.IQ：智商。IQ是intelligence quotient的缩写。
　　2.reveals a major new study：一项主要的新研究显示。这是一个倒装句，主语是a major new study，谓语是reveals。第三段出现的“says Michael Nilsson”和第五段出现的“says Maria Aberg”也是同一类型的倒装句。
　　3.Sahlgrenska Academy：瑞典哥德堡大学健康科学研究院
　　4.the Proceedings of the National Academy of Sciences (PNAS)：美国国家科学院学报
　　5.But it is only fitness that plays a role in the results for the IQ test：“it is...that”是强调式句子结构，被强调的部分是only fitness。强调前的句子是But only fitness plays a role in the results for the IQ test.”。第四段中出现的“it is primarily environmental factors and not genes that explain the link between fitness...”也属强调式句子结构。
　　6.This being the case：倘若情况果真如此，因此
　　7.must：用作名词，意思是“必须”。
　　8.national service：兵役，国民服役
　　练习：
　　1.A　carefully B　secretly C　likely D　happily
　　2.A　answers B　works C　scores D　results
　　3.A　behind B　between C　among D　without
　　4.A　logical B　critical C　typical D　positive
　　5.A　place B　game C　role D　trick
　　6.A　capacity B　disease C　shape D　treatment
　　7.A　change B　hydrogen C　oxygen D　memory
　　8.A　what B　why C　how D　where
　　9.A　exercise B　training C　strength D　movement
　　10.A　able B　clever C　lucky D　clear
　　11.A　moderate B　average C　lower D　higher
　　12.A　ignore B　improve C　like D　determine
　　13.A　examination B　labor C　movement D　education
　　14.A　before B　after C　without D　during
　　15.A　marriage B　life C　residence D　service
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