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  3. Virtual Reality Technology Virtual （虚拟的）reality is created by using displa...

Virtual Reality Technology Virtual （虚拟的）reality is created by using displa...

admin2020-12-24  14
问题 Virtual Reality Technology
Virtual （虚拟的）reality is created by using display and control technology to surround its users with an artificial environment that mimics （模仿） reallife. Through the use of visual and sound effects，things that don’t exist can be made to appear to exist. Virtual reality
allows users to manipulate objects on the screen so they can become full participants in the three-dimensional (3-D) setting that envelops them.
While this technology’s most advanced applications at the moment are in entertainment such as virtual reality golf and the virtual reality arcade （连拱廊）game rooms shooting up all over the world, researchers say its potential is enormous. They see it impacting everything,
from education to medicine and from science to business and government. “ The common perception of virtual reality is that ifs some kind of sophisticated computer game in an arcade，’’ explains Dr. Jack Goldfeather. ‘‘ I don’t really know if the public realizes how many
uses it’s being applied to.”
Dr. Mark Fishman, professor of computer science, says that virtual reality has the potential to accelerate scientific development. "It could be an intellectual tool that can study some of the diseases and problems threatening mankind’s well-being, such as AIDS and global warming. ”
Already, virtual reality systems have many practical applications. Most notably, the technology is being used to make simulations of cars or buildings during the design phase, to provide instruction in technical subjects like engineering, and to introduce new surgical （外科的） techniques. uVirtual reality offers another window, which a scientist can climb through to interact directly with scientific abstractions, says Howard Rheingold, author of Virtual Reality. “ Virtual reality has the potential to become a microscope of the mind ’’
The virtual reality technology is hindered right now by the fact that today’s computers are simply not fast enough, a quite remarkable discovery, given that computer speed is doubling every 18 months to two years. Computer scientists say a massive amount of processing is
required to create the various components of an image. Researchers expect a major breakthrough within the next five to 10 years. "Computing speed will increase to such levels that we will be able to create more sophisticated images/' predicts Professor Fishman. And
as the computing power increases, the steep prices of virtual reality systems are expected to drop.
According to the passage, how does one feel when he is using virtual reality systems?
选项 A He feels that virtual reality is more colorful than the real world.
B He feels as if he were manipulating real-world objects.
C He feels that he is somehow misled by the illusion appearing on the screen.
D He feels as if he were ruling the real world.
答案B
解析
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