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    Running a marathon (马拉松)
    Have you ever taken part in a marathon? A marathon is 42km long. It is the longest race in the world. To make the runner’s body work, harder training is quite necessary. A runner should start to prepare for a marathon at least three months before. Preparation may have races, many hours of running at different speeds and changes in diet(饮食). During the training time the runner must eat a fit diet.  The diet should have lots of things needed in training the players.
    In the early days of training, runners run 80km per week. The running is increased every two or three weeks and at least two long runs per week are needed.
    Two weeks before the marathon, the training programme becomes less, from 100km per week down to 60km and then to 30km in the final week. On the last two days they may not run at all.
    Breakfast should be eaten at least three hours before the race.  Easily digested(消化) food such as cereal(麦), toast(烤面包) and scrambled(捣碎) egg is best,  with as much fluid(液体) as possible.  Runners should drink water about half an hour before the race to keep up the body fluid. 
    小题1:According to the passage, when should a marathon runner begin his training?
    A．A month before the race.B．A week before the race.
    C．Three or four months before the race.D．A year before the race.
    小题2:What should a runner have for his breakfast on the day of the race?
    A．Easily digested food.B．A big meal.C．Lots of meat.D．Oily food.
    小题3:What is the length of the modern marathon?
    A．100km.B．60km. C．30km.D．42km.
    小题4: Players must have ________ in order to run better in a marathon.
    A．training at different speeds and changes in diet
    B．much water
    C．lessons before the race
    D．many fruits
    小题5: Hard training before a marathon can ________.
    A．make the game easierB．keep the players healthy
    C．help the players to make more progressD．have more fans

    小题1:C
    小题2:A
    小题3:D
    小题4:A
    小题5:C

    小题1:根据文章内容“A runner should start to prepare for a marathon at least three months before”可知答案为C
    小题2:根据文章内容“Easily digested(消化) food such as cereal(麦), toast(烤面包) and scrambled(捣碎) egg is best, ”可知答案为A
    小题3:根据文章的内容“A marathon is 42km long”可知答案为D
    小题4:根据文章内容“. Preparation may have races, many hours of running at different speeds and changes in diet(饮食). During the training time the runner must eat a fit diet.  The diet should have lots of things needed in training the players.”可知答案为A
    小题5:根据文章大意可知答案为C
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