حل تشریحی سوال شماره 23 زبان انگلیسی - عمومی

Directions: Read the following Evo passages and decide which choice (1), (2), (3), or (4) best answers each question. Then mark the correct choice on your answer sheet. Passage 1: For the next ten years, various aspects of society could be going through enormous change as Virtual Reality (VR) technolo ' mo› es towards fully operational and interactive implementation of its potential. To what extent VR establishes itself as an integral part of our lives, and how quickly it is likely to move from niche technology to common usage throughout society’, is currently under discussion. However, many experts are of the opinion that VR may well have become sufficiently developed for it to form an essential part of lifc by 2030 (it not sooner). Over 40 million people currently own VR headsets, and this figure is expected to double over the next three years. By 202ii, we may well have reached the point at iv hich almost 200 million users oo'n a VR viewing device, the Head Mounted Display (HMD), more commonly known as a VR headset. The ultimate aim of these headsets is to generate a 360-degree, 3D virtual world, enabling the viewer to enjoy what they are watching without the physical limits of a TV, computer or cinema screen. There are two LCD displays, one for each eye, which display images being sent by the computer or some such device (via an HDMI cable) or on the screen of a smartphone inserted into the front of the headset. Lenses, set inside the HMD bed een the user's eyes and the LCD displays, are necessary to counteract the natural differences heW’een what one human eye and the other simultaneously see. These lenses enable two 2D images of the display to be view ed, thus creating a tailored picture for each eye. These combine to create the illusion of real life’ in 3D. The FIMD also uses head tracking’, a system that follows the principle of aircraft flight, tracking three measurements known as pitch, yaw and roll (or movement along the x, y and z axes). It means that w hen the user tilts their head up, down, or to the side, VR follow’s these motions and allow's thein to ‘sec’ all around them.