（24-25高一下·安徽·期中）In Switzerland, one in three employees suffers from workplace stress. Those affected often don’t realize that their physical and mental resources are weakening until it’s too late. This makes it all the more important to identify work-related stress as early as possible where it happens: in the workplace.
Researchers at ETH Zurich are now taking an extremely important step in this direction. Using new data and machine learning, they have developed a model that can tell how stressed we are just from the way we type and use our mouse.
To develop their stress model, the ETH researchers observed 90 study participants (参与者) in the lab performing office tasks that were as close to reality as possible, such as scheduling meetings or recording and studying data. They recorded the participants’ mouse and keyboard behavior as well as their heart rates. In addition, the researchers asked the participants several times during the experiment how stressed they felt.
While some participants were allowed to work quietly, others also had to take part in a job interview. Half of this group were also repeatedly stopped by chat messages. In contrast to earlier studies by other scientists, where the control group often did not have to solve any tasks at all and could relax, in the ETH researchers’ experiment, all participants had to perform the office tasks.
The ETH researchers proved that stressed people type and move their mouse differently from relaxed people. “People who are stressed move the mouse pointer more often and less exactly and cover longer distances on the screen. Relaxed people, on the other hand, take shorter, more direct routes to reach their destination,” says Nägelin, a mathematician who conducts research. What’s more, people who feel stressed in the office make more mistakes when typing. They write on and off with many short pauses (停顿). Relaxed people take fewer but longer pauses when typing on a keyboard.
170．Why do researchers at ETH Zurich develop the stress model?
A．To find suitable solutions to pressure. B．To ensure employees’ physical health.
C．To identify employees’ job-related pressure. D．To examine employees’ stress-related illnesses.
171．What can be known from the process of building the model?
A．The participants were asked various questions.
B．The participants performed the same office tasks.
C．The control group did nothing but relax themselves.
D．Some participants were repeatedly stopped by messages.
172．What will happen if a man at work is under much stress?
A．He may feel relaxed when typing. B．He may move the mouse pointer exactly.
C．He may make more mistakes when typing. D．He may type a document without any stop.
173．What is the most suitable title for the text?
A．Several ways to reduce our pressure at work.
B．Checking your pressure level through a stress model.
C．The great influence of much pressure on our work.
D．Detecting stress in the office from how people type and click.
【答案】170．C 171．D 172．C 173．D
【知识点】科普知识 、说明文
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