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    18．If you're the kind of person who won't leave the house without a sports watch，it may soon be time to get rid of it．Inventors have issued a new digital running shirt，which has all the features of an electronic tracking device and more．
    The"D-Shirt"is made from a special fabric（织物） woven with sensors，which record your heart rate，GPS location，route，speed and altitude．
    The shirt，which is lightweight and washable，sends the information to an app on your smartphone by Bluetooth．The phone can store and analyze data from the fabric，showing the person's route，time，heart rate and number of calories burned．It can also help indicate when the runner is pushing himself too hard and risking the heart attack．
    "We believe that our connected lives in the future should not be more complicate．They should be easier．So we are developing technology which does not require people to change their habits，"said Stanislas Vandier，deputy chief executive．"You never leave home without a shirt．So we are simply turning a T-shirt into D-Shirt．In the future，the same principle can be applied to all sorts of clothes．"
    Developers are now working on heart，breath and sweat sensors，so this shirt can be particularly helpful for people in extreme conditions，such as athletes，first responders，and soldiers．It is hoped that in the future，other factors such as blood oxygen level can also be monitored using the fabric．

    29．Which of the following is a feature of the"D-Shirt"？B
    A．It is more accurate than a sports watch．
    B．It can help the runners know when they'd better slow down．
    C．It can store and analyze the runner's weight．
    D．It can design routes and speed limits for the runner．
    30．According to Stanislas Vandier，the idea behind the"D-Shirt"is toC．
    A．use the same principles for different products
    B．help people get rid of unhealthy habits
    C．make life simpler through technology
    D．develop affordable modern devices for ordinary people
    31．We can infer from the last paragraph that the next generation"D-Shirt"would probablyA．
    A．provide data for more health factors
    B．read and adjust people's blood levels
    C．keep you connected with the Internet wherever you go
    D．drive sports records beyond people's imagination．

    分析 本文是一篇科教类阅读，主要讲的是一种含有高科技的衬衣D-shirt．

    解答 29-31 BCA
    29题答案：B考查细节推理，根据文章第三段的It can also help indicate when the runner is pushing himself too hard and risking the heart attack．它也有助于预测什么时候跑步者太累了而且有心脏病发作的危险．可知这种衬衣的一个特征就是能够帮助跑步者知道最好什么时候该慢下来，因此本题答案为B选项．
    30题答案：C考查细节推理，根据文中的We believe that our connected lives in the future should not be more complicate．They should be easier．我们认为我们未来的生活不是更加复杂，而是更加简单．可知本题答案为C选项．
    31题答案：A考查细节推理，根据最后一句的It is hoped that in the future，other factors such as blood oxygen level can also be monitored using the fabric．
    人们希望未来其它诸如血氧水平这样的因素也能通过使用这种织物也能被显示出来．可知本题答案为A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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