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    5．Shescanned（浏览，扫描）the computer screen carefully hoping to find some new emails in her mailbox．

    分析 她仔细地浏览了电脑屏幕，希望在她的邮箱中找到一些新的邮件．

    解答 scanned，考查谓语动词的用法，有中文意思可知使用动词scan，根据语境可知动作已发生，因此使用一般过去时，注意scan是以一个辅音字母结尾的重读闭音节词，其过去式为scanned．

    点评 对于翻译填空这种题，要分析句子意思，再从结构上和意义上对答案进行确定．

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    科目：高中英语 来源： 题型：阅读理解

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    But there's a question to answer：As we know，if an ant is dead，it stops moving．But when an ant is sleeping or knocked unconscious，it is also not moving．However，other ants don't move the living ant out of the nest．How do they know this ant is not dead？Choe found that ants have another chemical on their bodies，which tells nearby ants something like，"Wait-I'm not dead yet"when it is not dead．Choe suspects that when an ant dies，the chemical that says，"Wait I'm not dead yet"quickly goes away．When other ants detect the"dead"chemical without the"not dead yet"chemical，they move away the body．
    To test his theory，Choe and his team put different chemicals on ants．When the scientists used the"I'm dead"chemical，other ants quickly moved the treated ant away．When the scientists used the"Wait-I'm not dead yet"chemical，other ants left the treated ant alone．Choe believes this behavior shows that the"not dead yet"chemical overrides the"dead"chemical when picked up by other ants．And that when an ant dies，the"not dead yet"chemical fades away．Other nearby ants then detect the remaining"dead"chemical and remove the body from the nest．
     Understanding this behavior can help scientists figure out how to stop ants from invading new places and causing problems．
    57．What is the function of the first paragraph？C
    A．Leading the following paragraphs．
    B．Showing the main idea of the passage．
    C．Introducing the background of the passage．
    D．Giving a summary of the passage．
    58．Which of the following has the closest meaning to the underlined word"overrides"in the fourth paragraph？B
    A．is weaker than        B．is stronger than    C．is better than    D．is worse than
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    B．When an ant dies，it can tell others using a certain chemical．
    C．A living ant can pretend to be dead using a special chemical．
    D．Ants often use chemicals to communicate with each other．
    60．Which of the following descriptions about Dong-Hwan Choe is right？C
    A．Choe did this study in order to stop ants from invading new places．
    B．Choe is a biologist who is only interested in animals，especially in ants．
    C．Choe first came up with an idea to explain this ant behavior，and then did some tests to prove his theory．
    D．Choe did the research on this ant behavior on his own．

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    科目：高中英语 来源： 题型：阅读理解

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    Simroid is designed to be used at medical colleges．She has realistic looking skin，eyes，and a mouth fitted with replica （仿制） teeth．Her chest also rises and falls as if she is breathing．Simroid releases a clear"ouch!"whenever a trainee dentist presses her teeth too hard with a tool．And she gives a reassuring"that's better"when the drill hits the right place．
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    C．She can communicate a lot with dentists．
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    B．Japan has taken the lead in developing robots
    C．the Japanese robot market has greatest potential in the world
    D．the world's biggest robot exhibition is held in Japan every year
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    B．improving mechanical efficiency
    C．entering the age of the service robot
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