In the near future, we may be using our eyes to operate our smartphones and tablets, even when it comes to playing popular games like Fruit Ninja. The GazeGroup has been developing eye-controlled computer technology for nearly 20 years. But those devices have been mainly designed to aid those with disabilities, and are very expensive. "After a while, we figured out that probably the best way is to go for a mass-market approach," says Gaze's Sune Alstrup Johansen, "where everybody would have this available." Johansen and some of his colleagues have formed a new company, The Eye Tribe, which is hoping to develop the technology on a mass commercial level. The technology works by sending an infrared light from the computing device toward the user's face. After measuring the user's eye movements, the technology is then able to easily know where a person's eyes are moving, allowing the eyes to control a cursor . A software can determine the location of the eyes and tell where the user is looking on the screen. It even knows which image he is looking at. There has been a gradual change toward hands-free technology in recent years, particularly in the gaming world. Following Nintendo's popular Wii system, Xbox released the Kinect device, which lets users control their Xbox and play certain games using only their hands, legs and voices. Since most smartphones and other mobile devices can't come standard with an infrared device, Johansen said a replaceable filter would be an inexpensive, convenient choice for most consumers. And even as companies like The Eye Tribe work to create a commercially practical product for the average user, making the eye-controlled technology more accessible and less expensive will have similar benefits for disabled users. "Then I can go to any computer, and then I can control it and I can use it, instead of just bringing my own," said Stig Langvad, who heads up Denmark's umbrella organization for people with disabilities. "So I'll be a part of society on an equal foot, instead of... Which the following statements about The Eye Tribe is true? A) It was once called the GazeGroup. B) It produces eye-controlled technology for disabled users only. C) It is founded in Denmark by Stig Langvad and some of his colleagues. D) It is formed to develop commercially practical eye-controlled technology.
D
(Question)
The following is the story of a SARS patient named Wang and his fight with the disease. I woke up around 6 : 30 this morning, on my ninth day in hospital since I caught SARS. Glancing over at my roommate, Xiao Huang, a 27-year-old employee of a Beijing software company, I saw he was also awake. After a light breakfast, a nurse came in and took my temperature. It was 36.6 centigrade. We're at Changxindian Hospital in southwestern Beijing, a newly named SARS patient hospital. It seems I am now recovering as my fever has gone down in recent days. When I first got the disease , I spent four days with a temperature above 39.5 centigrade--at one point it reached 40. 1 centigrade. At 8 : 30 am, a nurse took a blood sample and X-ray of my chest. Then my daily treatment began with the help of the experts from Guangdong and WHO. Before the first bottle finished, my wife rang me. I talked with her on my mobile phone. It has become a major connection with the outside world. Several friends also called me in the morning. I am feeling great these days--no fever, no headache and no pain in the chest, which are all symptoms of SARS. My slight cough is gone since I began taking a new round of medicines yesterday. The doctor told me that I may be set free from hospital in two weeks and a half. According to the passage, which of the following is NOT the symptoms of SARS? A) Having a high fever. B) Having a headache. C) Feeling pain in the chest. D) Feeling cold all day.
(Answer)
D
Satellites play big roles in modern life. Some look downward to monitor environmental conditions on Earth.Others look outward in search of major solar flares that can trouble the transmission of electrical power to homes and businesses. Some spy on our enemies. Others relay communications around the globe. But all of these million-dollar wonders of technology can be knocked out by a collision with space junk ---debris ( )from satellites and other earthly technology orbiting high above the planet. Now,a teen from Jordan has designed a satellite to chase down space junk , collect it and then deal with it. Even bits of space junk as small as dots of paint pose a threat , says Dana. That's because this debris orbits our planet at speeds up to some 28,200 kilometers per hour. Such high speed explains why tiny paint dots have damaged the windshields of space shuttles so badly that they needed to be replaced. Researchers have come up with many ideas for getting rid of space junk. Some have suggested vaporizing small bits with lasers. Others have proposed launching satellites to collect the debris. Dana's design falls into this category. Here's how hers would work : A radar system aboard the satellite would scan and find a piece of space junk.Then,thrusters would change the satellite's orbit so that it could chase down _ . As the satellite closed in on its prey, cameras would keep it on target. At the last minute,a door that leads to a container would open. This container needs to be strong so that it doesn't break apart when the satellite swallows the space junk,Dana explains. Finally,when the trash container was full,it would be lowered toward the earth on a kilometer-long cable and its contents released into the upper atmosphere. There, the space junk would harmlessly burn up just like a meteor does. Meanwhile, her satellite would roll the container back up so that it could collect more trash. Why can small pieces of space junk threaten satellites? A) They travel at a very high speed. B) They are difficult to track by satellites. C) They can blow up into millions of pieces. D) They are as soft as a ball in the air.
A