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    How much sleep do we need? We are all different. Some people need only three hours of sleep a night. Others need ten hours of sleep a night. Most Americans sleep an average (平均值) of seven to eight hours a night. After the age of fifty the average sleep time goes down to 6.5 hours a night.
    Most people have a bad night when they can not sleep. About one in three Americans has a problem with sleep. Many of these people can not fall sleep. This problem is called (叫做) insomnia. This is not a new problem. Many famous people in history had insomnia. Some of these people had special (特别的) ideas to another to make them sleep. Benjaming Franklin, the famous stateman (政治家) and inventor (发明家)，had four beds. He moved from one to another to fall asleep. King Lousis XIV of France had 13 beds and hoped that he could fall asleep in one of them. Mark Twain, the famous American writer, had a different way. He lay on his side on the end of the bed!
    小题1:.Most American people need________ hours of sleep a night.
    A．3B．10C．7-8D．5-6
    小题2:People need_________ sleep as they get older.
    A．moreB．less（更少的）C．noD．little
    小题3:“The problem is called insomnia.” Here “insomnia” means_________.
    A．going to sleep easilyB．sleep at daytime
    C．the ways of sleepD．not being able to(能够)go to sleep
    小题4:Mark Twain lay on his side on the end of the bed because he_________.
    A．was an old manB．thought it was easy to go sleep
    C．was a famous writerD．didn’t have much room to sleep in
    小题5:The passage is mainly (主要地) talking about_________.
    A．sleepB．insomnia
    C．how to go to bedD．the famous person

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

    试题分析：
    小题1:通过Most Americans sleep an average (平均值) of seven to eight hours a night.一句可知，大部分美国人的平均睡眠时间是7至8小时。所以本题选C。
    小题2:通过After the age of fifty the average sleep time goes down to 6.5 hours a night.“五十岁以后的平均睡眠时间降到每晚6.5小时。”一句可知，随着年龄的增长，睡眠的时间在变少。所以本题选B。
    小题3:通过前一句Many of these people can not fall sleep“这些中的许多人不能入睡”可知，这里的“insomnia”是失眠症的意思。所以本题选D。
    小题4:通过Some of these people had special (特别的) ideas to another to make them sleep.可知，本题应该选B。
    小题5:根据整个文章的意思，文章主要是围绕睡觉展开的。而B失眠症，C怎样睡觉和D著名的人物都比较片面。所以本题选A。
    点评：本文说明美国人的睡眠问题一句一些著名的人物是怎样对待自己的失眠的。阅读短文是，可以先通读全文，了解文章大意，并对于其中的词汇根据句意进行猜测；然后，带着问题，在文中找答案，应该注意同义句型的不同表述方式。
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