Subtopic 2: (3 points) Give an example (1 point) that specifies that the hottest carrier of eye-tracking technology is the cell phone (2 points).
Subtopic 3: (3 points) "may" indicates estimation, plays a limiting role, (1 point) indicates that in addition to computers and cell phones, cars are the earliest place you can come into contact with eye-tracking technology, which is only a kind of speculation, (1 point) if removed, the language is too absolute and does not correspond to the original meaning, reflecting the accuracy of the language of the expository essay, rigor. (1 points)
Subtitle 1:,4,Read the following article and complete the questions that follow. (11 points)
Eye tracking allows you to have "supernormal capabilities"
① Perhaps you have seen around the technology fans have a magical "supernormal capabilities": moving eyeballs, the screen will turn the page; blinking, the phone will be able to take pictures; Driving sleepy eyelids drooping, will immediately ring voice prompts ...... This is not because their eyes have been modified, but because they use the equipment equipped with a technology called "eye tracking".
② The principle of eye tracking technology is not complicated: when people's eyes look in different directions, there will be subtle changes in the eye, these changes will produce features that can be extracted, the computer can capture or scan the image to extract these features, so that real-time tracking of changes in the eye, predict the state of the user and the needs, and respond to the purpose of controlling the device with the eyes.
③ The main equipment used at this stage includes infrared equipment and image capture equipment. In terms of accuracy, the infrared projection method has a relatively large advantage, probably in the 30-inch screen accurate to within 1 centimeter, supplemented by blink recognition, gaze recognition and other technologies, has been able to replace the mouse, touchpad, to a certain extent, to carry out some limited operations. In addition, other image capture devices, such as cameras on computers or cell phones, can also achieve eye tracking with the support of software, but with varying degrees of accuracy, speed, and stability.
④ In daily life, the hottest carrier of eye-tracking technology is cell phones. For example, Samsung's last generation flagship GalaxyS3 can control the lock screen time by detecting the user's eye state, and as long as it detects that the user is staring at the cell phone screen, the screen will not be turned off even if the user does not perform any operation. The release of GalaxyS4 extends this feature even further: you can control the page scrolling up and down by eyeballs.
⑤ Is there any way to enable eye tracking on older devices? A Swedish company, Tobii, plans to launch a product this year that will allow older computers to access this new technology. This device is called Rex, a computer peripheral device, as long as it is placed on the top of the screen, and then accessed through the USB port, the user will be able to use the line of sight to control the computer to complete some of the operations, such as manipulating the IE page scrolling, using the Windows 8 maps application.
⑥ In addition to computers and cell phones, cars are likely to be the first place you'll see eye tracking technology. Both GM and Toyota have already invested quite a bit in this area. It can simulate the driver's field of vision in real time, reminding the driver of possible dangers in the blind spot; it will also emit sound alerts when the driver's eyelids droop (sleepy) or blinks less often (distracted), and so on. An Australian company called Seeing Machines, recently developed a similar product, as long as the driver's eyes closed for more than 1.6 seconds, the alarm will ring, the seat will also vibrate.
⑦The development of eye-tracking technology currently has many difficulties. For example, it is not easy to let the machine effectively recognize the true intention of human eye movements to determine whether it is an unconscious movement or a conscious change. Therefore, this technology is difficult to become the main way of interaction between humans and machines in the short term, but it is a good complement to the more mature human-computer interaction such as mouse, keyboard, and touch, and has a wide range of applications in the fields of healthcare, online education, psychological research, and even criminal investigation.
Subtitle 1: What is the object of this article? The author is centered on which aspects of its description? (5 points)
小题2:文章第4段主要运用了哪种说明方法？ What is the function? (3 points)
小题3:画线句子加点词 "可能 "是如何体现说明语言特點？ (3 points)