C．wealthyD．outgoing

　　57．The underlined word “rivals” in the first paragraph is closest in meaning to.

　　A．enemiesB．colleagues

　　C．competitorsD．friends

　　58．Which of the following is TRUE according to the passage?

　　A．Mr Kim was afraid Mr Tan might succeed ahead of him．

　　B．Mr Tan’s bacteria grew very fast in a warm container．

　　C．Mr Tan worked much harder than Mr Kim．

　　D．Mr Kim was so tired that he fell down into sleep．

　　59．What happened to Mr Kim in the end?

　　A．He died on Christmas Eve．

　　B．He was arrested by the police．

　　C．He shared the success with Mr Tan．

　　D．He succeeded ahead of Mr Tan．

　　(B)

　　If you want to improve your child’s results at school, you could do a lot worse than ensuring that they do plenty of exercise．Scientists have already shown that physical activity can make you brainier．But a team in America has used scans to show that an important part of the brain actually grows in children who are fit．These youngsters tend to be more intelligent and have better memories than those who are inactive．

　　Scientists also found that one of the most important parts of their brains was 12 percent larger than those of unfit children．They believe that encouraging children to take exercise from a very young age could help them do better at school later．Researchers from the University of Illinois, in the U．S．, studied the brains of 49 children aged nine and ten using a magnetic resonance imaging scan （核磁共振摄影扫描）, a technique which provides very detailed pictures of organs and tissues（组织）in the body．

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