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    9．Louis Pasteur was born in Dole，France on December 27，1822．His family was poor，and during his early education Pasteur was an ordinary student who enjoyed art and singing．However，when Pasteur was exposed to science as a teenager，he knew he had found his career．
    In 1838，Pasteur went to college to become a science teacher．He then became a chemistry professor at the University of Strasbourg．He got married in 1849and had five children．However，three died young from typhoid fever （伤寒症）．It was the deaths of his children that drove Pasteur to investigate the infectious disease in order to find a cure．
    During Pasteur's time，people believed that bacteria（细菌） appeared due to"spontaneous generation（自然发生）"．They thought that the bacteria just appeared out of nowhere．Pasteur carried out experiments to see if this was true．Through his experiments he proved that germs were living things that came from other living things．They didn't just spontaneously appear．This was a major discovery in the study of biology and earned Pasteur the title of Father of Germ Theory．
    As Pasteur learned more about bacteria，he began to think they may be the cause of diseases in humans．When the French silk market was threatened by a disease to silkworms （蝉），Pasteur decided to investigate．He discovered that this disease was caused by germs．By killing them from the silkworm farms，he was able to cease the disease and save the French silk business．
    Today Louis Pasteur is known as one of the most important scientists in history．His discoveries led to an understanding of bacteria and diseases that has helped save millions and millions of lives．

    28．After his children's deaths，Louis PasteurC．
    A．became afraid of infectious diseases
    B．was frustrated and wanted to do nothing
    C．decided to find out how to treat the disease
    D．didn't know it was typhoid fever that caused their deaths
    29．What is implied about Louis Pasteur's discovery in Paragraph 3？D
    A．It supported what most people thought at that time．
    B．It revealed that bacteria often appeared out of nowhere．
    C．It attracted the attention of the Father of Germ Theory．
    D．It was a very important discovery in the history of biology．
    30．What does the underlined word"cease"in Paragraph 4 probably mean？A
    A．End．
    B．Find．
    C．Develop．
    D．Spread．
    31．What is the text mainly about？B
    A．A disease that killed children easily in history．
    B．A great scientist in the field of biology in history．
    C．Some of the most important scientists in history．
    D．Some of the most important discoveries in history．

    分析 本文是一篇科教类阅读，主要讲了历史上伟大的科学家Pasteur的一些生平情况及其在细菌与疾病等方面的一些发现．

    解答 28-31：CDAB
    28题答案：C 考查细节推理，根据文章第二段的"It was the deaths of his children that drove Pasteur to investigate the infectious disease in order to find a cure．"（他孩子的死亡驱使Pasteur调查这一感染性疾病从而找到治愈的方法）可知本题答案为C选项．
    29题答案：D 考查细节推理，根据最后一句的"This was a major discovery in the study of biology and earned Pasteur the title of Father of Germ Theory．"（这是生物学研究中的重要发现，而且使Pasteur获得了"细菌理论之父"的称号）可知本题答案为D选项．
    30题答案：A 考查细节推理，根据后面的"save the French silk business"（拯救了法国的丝绸业）可知这里的cease意为"终止；停止"之意，故本题答案为A选项．
    31题答案：B 考查文章标题，本文主要讲了历史上伟大的科学家Pasteur的一些生平情况及其在细菌与疾病等方面的一些发现；故本题答案为B选项．

    点评 本文是一篇科教类阅读，题目涉及多道细节理解题，做题时结合原文和题目有针对 性找出相关语句进行仔细分析，结合选项选出正确答案．推理判断也是要在抓住关键句子的基础上合理的分析才能得出正确的答案．

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    B．To become the most important place for cycling．
    C．To draw more cyclists to come to practise cycling．
    D．To make itself a world-famous centre of tourism．
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    D．Cyrus Wambua．
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    C．He wants more help from it．
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    31．What do you know about the Tour de Machakos？C
    A．It covers the longest distance in cycling races．
    B．It is the biggest road race in the world．
    C．The number of cyclists doubled in it．
    D．Fewer athletes will take part in it．

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