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    20．Imagine you're at a party full of strangers．You're nervous．Who are these people？How do you start a conversation？Fortunately，you've got a thing that sends out energy at tiny chips in everyone's name tag．The chips send back names，jobs，hobbies，and the time available for meeting-whatever．Making new friends becomes simple．
    This hasn't quite happened in real life．But the world is already experiencing a revolution using RFID technology．
    An RFID tag with a tiny chip can be fixed in a product，under your pet's skin，even under your own skin．Passive RFID tags have no energy source-batteries because they do not need it．The energy comes from the reader，a scanning device，that sends out energy （for example，radio waves） that starts up the tag immediately．
    Such a tag carries information specific to that object，and the data can be updated．Already，RFID technology is used for recognizing each car or truck on the road and it might appear in your passport．Doctors can put a tiny chip under the skin that will help locate and obtain a patient's medical records．At a nightclub in Paris or in New York the same chip gets you into the VIP （very important person） section and pays for the bill with the wave of an arm．
    Take a step back：10or 12years ago，you would have heard about the coming age of computing．One example always seemed to surface：Your refrigerator would know when you needed to buy more milk．The concept was that computer chips could be put everywhere and send information in a smart network that would make ordinary life simpler．
    RFID tags are a small part of this phenomenon．"The world is going to be a loosely coupled set of individual small devices，connected wirelessly，"predicts Dr．J．Reich．Human right supporters are nervous about the possibilities of such technology．It goes too far tracking school kids through RFID tags，they say．We imagine a world in which a beer company could find out not only when you bought a beer but also when you drank it．And how many beers．Accompanied by how many biscuits．
    When Marconi invented radio，he thought it would be used for ship-to-shore communication，not for pop music．Who knows how RFID and related technologies will be used in the future．Here's a wild guess：Not for buying milk．

    74．The article is intended toD．
    A．warn people of the possible risks in adopting RFID technology
    B．explain the benefits brought about by RFID technology
    C．convince people of the uses of RFID technology
    D．predict the applications of RFID technology
    75．We know from the passage that with the help of RFID tags，peopleA．
    A．will have no trouble getting data about others
    B．will have more energy for conversation
    C．will have more time to make friends
    D．won't feel shy at parties any longer
    76．Why are some people worried about RFID technology？C．
    A．Because children will be tracked by strangers．
    B．Because market competition will become more fierce．
    C．Because their private lives will be greatly affected．
    D．Because customers will be forced to buy more products．
    77．The last paragraph implies that RFID technologyB．
    A．will not be used for such matters as buying milk
    B．will be widely used，including for buying milk
    C．will be limited to communication uses
    D．will probably be used for pop music．

    分析 本文主要讲述的是一项新技术RFID的应用及它的前景，不仅可以交友还可以付账．不过随之也会产生安全的问题．

    解答 74．D 主旨大意题．通读全文得知，本文主要讲述的是一项新技术RFID的应用及预测它的前景应用．故选D．
    75．A 细节理解题．根据第一段"Fortunately，you've got a thing that sends out…and the time available formeeting-whatever"，人们第一次见面便可以从芯片上获取对方的基本信息．可推知选A．
    76．C 细节理解题．根据第六段"Human right supporters are nervous…It goes too far tracking…Accompanied by how many biscuits"这种技术也会使人们隐私泄露，甚至有的公司知道人们的饮食情况，可知选C．
    77．B 推理推断题．根据最后一段提到的Marconi在发明收音机时只想应用在轮船与陆地沿岸的交流沟通，没想到应用在流行音乐上，因而谁知道RFID及相关技术在未来将怎样使用，可能会用在买牛奶的问题上．故选B．

    点评 在对科技说明文进行阅读理解是，考生可以尤其注意中心句，中心段（首尾）、转折句和问题中出现的词，尤其是一些很有特点的词如专有名词．在文段中快速找到相应词语所在位置，问题的答案往往就在附近．

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    科目：高中英语 来源： 题型：阅读理解

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    科目：高中英语 来源： 题型：选择题

    10．It's reported that the world's food price in March is 2.9% lower than _______ in February．（　　）
    A．thisB．itC．thatD．one

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