2015考研英语阅读集中练：Prevention of cancer

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考研英语阅读水平的提高重在练习，多练才能够增加词汇量，提升对语法语义的把握，才能够更容易的理解和总结文章中心主旨。正所谓熟能生巧，就是这个道理。十一刚过，后续复习任务依然很重，新东方在线小编希望考生能够继续努力，多读多练。下面分享英语阅读集中练篇章，望考生认真阅读。
    2015考研英语阅读集中练：Prevention of cancer
   
    In recent years its benefits as a blood-thinning drug have led to it being
prescribed in lowdoses of around 50mg to reduce deaths from stroke and heart
attack.
    There were also hints that aspirin may help prevent some cancers.
    But these were mostly based on observational studies, which can be
misleading.
    The gold standard of scientific evidence is the randomised controlled
trial, preferably onewith a lot of people and held over a long time.
    The results of just such a trial, published in the Lancet, suggest that
aspirin is indeed anastonishing drug.
    Peter Rothwell at the John RadcliffeHospital in Oxford and his colleagues
looked at deaths due to cancers during and afterrandomised trials of daily
aspirin.
    The trials had actually been started to look at how useful aspirin was for
preventing heartattacks and strokes.
    Nevertheless, the data from the 25,570 patients enrolled in eight trials
was also revealingabout cancer.
    In trials lasting between four and eight years, the patients who had been
given aspirin were21% less likely to die from cancer than those who had been
given a placebo.
    These results were based on 674 cancer deaths, so are unlikely to represent
the kind ofstatistical oddity that can beset studies on cancer risks that
sometimes create headlines.
      温馨提示：10月10日，本周五是考研正式报名开始，希望广大应往届考生提前做好准备。
   
   

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