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    IMAGINE if there was a device that could do everything for you – wake you up every morning, chat with you and type your e-mails.
    The piece of technology in question would be smart, able to tell you about the weather and where the nearest restaurants are.
    The good thing is you no longer need to wonder, because something like this already exists. And its name is Siri.
    Siri is a voice recognition application designed for Apple products and the concept has been around for almost a year.
    When Siri first came out it could only speak English, but now it has “learned” lots of new languages, including Chinese, Cantonese and Taiwanese, reported The Wall Street Journal. So, you can give it orders in your mother tongue.
    But how could a cell phone or a computer “hear” what you are saying and understand it? This is all because of voice recognition technology.
    When you speak, your voice creates vibrations (振动) in the air – a bit like waves in the water when you throw a rock into the lake. The microphone receives the vibrations and the computer changes them into digital data that is then divided into many parts. They are analyzed one by one to see what pronunciations each part stands for. The computer then puts these pronunciations together into possible words according to its built-in dictionary.
    But figuring out the words is far from enough; building words into meaningful sentences is the most difficult part. The computer has to compare what it hears to a large library of known phrases and sentences to determine what the user is saying.
    However, people don’t always talk in the most standard way and sometimes make grammatical mistakes. This is why traditional voice recognition software always requires you to remember keywords and to speak in a certain way.
    Fortunately, Siri isn’t like that. It’s not just “voice recognition”; it’s “natural language understanding (NLU)”. You can ask it things like “Do I need an umbrella today?” and it will know that you are asking about the weather, according to ABC News.
    “The key thing is NLU – understanding what you mean and what you want,” Neil Grant from Nuance, a software company in the US, told The Guardian. “Historically, you had to learn a huge long list of commands . As NLU progresses, you can say what you want in a way that’s natural to you.”
    小题1:What is the function of the first two paragraphs?
    A．To show that invention usually results from need.
    B．To clear doubts about voice recognition technology.
    C．To introduce something that offers these helpful services.
    D．To show how the voice recognition works.
    小题2:Which step is the most complicated in the process of voice recognition according to the article?
    A．Changing the received vibrations into digital data.
    B．Analyzing the digital data to see what pronunciations it represents.
    C．Putting the pronunciations together into possible words.
    D．Figuring out meaningful sentences based on the words.
    小题3:How can you get Siri to respond according to the article?
    A．You can speak in a natural way as you would to a person.
    B．You can only speak English and Chinese.
    C．You have to say things in a certain way.
    D．You have to remember keywords and speak specific commands.
    小题4:What can be concluded from the article?
    A．Siri can record and save what you say frequently into a computer dictionary.
    B．Siri will fail to understand what you say if you make grammatical mistakes.
    C．The biggest advantage of Siri is that it’s NLU is rather than just voice recognition.
    D．Since first applied to Apple products a year ago, Siri has made great improvements.
    小题5:The text is mainly about ________.
    A．the convenience of future life.
    B．an introduction to the Apple products.
    C．the working system of voice recognition
    D．the introduction to Siri

    小题1:C
    小题2:D
    小题3:A
    小题4:C
    小题5:D

    试题分析：本文主要介绍了一种新的产品--- Siri，它自带先进的人工智能技术，想要知道明天的天气怎样，问问Siri就知道了。它比其他的语音识别系统最大的优势是，不用记住关键字，想说什么就说什么。
    小题1:这是推理判断题。根据前两段是一个引子，目的引出本文要说的新型的Siri ，故选C。
    小题2:这是细节理解题。根据The microphone receives the vibrations and the computer changes them into digital data that is then divided into many parts. They are analyzed one by one to see what pronunciations each part stands for. The computer then puts these pronunciations together into possible words according to its built-in dictionary.把听到的声音根据存在它里面的单词它再分析出意思来最复杂了，故选D。
    小题3:这是细节理解题。根据it’s “natural language understanding (NLU)”. You can ask it things like “Do I need an umbrella today?” and it will know that you are asking about the weather, according to ABC News.按照人说话的方式去说就行，故选A。
    小题4:这是细节理解题。根据This is why traditional voice recognition software always requires you to remember keywords and to speak in a certain way. Fortunately, Siri isn’t like that. It’s not just “voice recognition”
    The key thing is NLU – understanding what you mean and what you want NLU 你可以你想说什么就说什么，这是不同于其他的功能，故选C。
    小题5:这是主旨大意题。根据从全文来看，这篇短文主要介绍Siri 的功能，故选D。
    点评：细节题为阅读考题的重头戏，所占比例很高，相对而言较简单，因为这类题虽然要求理解准确，但基本上限于字面意义的理解，范围也限于局部，因此是我们可望得高分的部分。细节题绝大部分体现“中心思想是解”这一原理。本文都是细节理解题，在文中比较容易找到答案。
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