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Problems Caused by Using Computers Long hours at the screen can cause【C1】________ (ache) eyes, 【C2】________ (blur) vision an
Problems Caused by Using Computers Long hours at the screen can cause【C1】________ (ache) eyes, 【C2】________ (blur) vision an
admin
2022-01-21
3
问题
Problems Caused by Using Computers
Long hours at the screen can cause【C1】________ (ache) eyes, 【C2】________ (blur) vision and headaches, experts say. In fact, eyestrain surpasses even wrist pain as the top physical【C3】________ (complain) among heavy computer users. When peering into the computer screen, the eye’ s focusing muscle is at constant tension. Like any muscle, it feels sore when【C4】________ (overload) . And when someone spends a lot of time looking at something close, the eye muscle can get【C5】________ (stick) on the near-focus setting and have difficulty relaxing, leaving the person【C6】________ (temporary) nearsighted, a condition called accommodative spasm (痉挛) that can last seconds or hours. The letters on the screen are not as clearly【C7】________ (define) as on a printed page. Take a magnifying glass to your monitor and you’ll see the letters, each made up of pinpoint sources of light, have no sharp edges. But those liquid crystal display (LC. D. monitors, like those found on laptop computers, are【C8】________ (easy) on the eyes because they display sharper images. And studies have shown that when people are working on a computer, their rate of【C9】________ (blink) goes down by two-thirds, which can result in dry, stinging eyes. This is especially a problem for contact-lenses【C10】________ (wear).
【C1】
选项
答案
aching
解析
本句空白处放在名词eyes的前面提示可填入形容词修饰该名词,提示词动词ache需变形填入空白处,名词eye和动词,ache属主动关系。提示词动词ache的现在分词形式aching可以用作形容词表示“疼痛的”,将aching填入符合语境。
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