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The days of staring attentively at the computer screen pretending to be interested in
an assignment even though you are bored out of your mind may soon be coming to an end. That"s
because if Dr. Harry Witchel has his way, computers of the future will be able to detect (察觉)boredom and even react to it real-time.But before you get concemed, the machine is not reading your mind. It is just keeping track of the constantinvoluntary movements that people exhibit when in front of a computer or even a television. These are not the bigger instrumental actions like moving a mouse or using the remote,but subtle barely noticeable movements like scratching or stretching. Witchel says the level of movement is directly relative to how absorbed the person is in what he/she is reading or watching the higher the interest level, the lesser the movement!To test the theory Witchel and his team invited 27 people and exposed them to avarietyofdigital content for three minutes at a time. The activities ranged from playing online games to reading documents like the EU banking regulations that most people would frnd boring. A video motion tracker monitored their movements as they powered through each assignment. Just as the researchers had suspected, the involuntary actions decreased surprisingly, by as much as 42%, when the subjects were totally absorbed in what they were reading or seeing.
Fortunately, the scientists are not planning to use the findings that were published in the online Joumal to create machines that report students who are not focusing at school. Instead, they believe
that combining the motion detecting technology into future computers will help enhance (如强) the digital leaming experience.The scientists say that being able to measure the student"s interest level, will enable educators to
adjust the materials real-time and re-engage the student. Witchel also believes that the technology can provide filmmakers with honest audience opinions and in the future, also be used in developing more understanding companion robots.
24. Dr. Harry Witchel wants future computers to have the competence to .
A. sense when users feel tired and less absorbed
B. record how long people surf on the Internet
C. help educators to prepare teaching materials
D. read the people"s mind in front of a computer
25. What can we infer from the text?
A. The machine will be used to detect whether the students are focusing at school.
B. Subjects will make fewer unconscious movements if they are concentrated.
C. Future computers are intended to cure adolescents of their network addiction.
D. Most people think banking docum ents boring because they are of little value.
26. What may be the best title for the text7
A. Being Exposed to Computers All Day Long Makes You Bored. .
B. Scientists are Developing a More Advanced Computer Now.
C. Computers of the Future May be Able to Detect Boredom.
D. The Future Machine is Helpful to Teachers And Students.



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