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17.A.changing B.available C.exposure D.worsen E.sensitive
F.density G.rest H.shaded I.refleciions J.interrupted K.fighting

Are your eyes dry,watery,seeing double or (31)E to light,and do your back and neck ache?If so,you are likely one of many people today who suffer from digital eyestrain(视疲劳)also called computer-vision syndrome.
Eyestrain is often related to the amount of (32)Cto screens,the distance from eyes to screens and the use of multiple screens at the same time.However,studies
have also shown that the blue light produced by digital devices reaches further into the eyes than other kinds of light.This light actually assisis attention during the day but can result in (33)J sleep patterns at night.
Scientists have stated that eyestrain is not a necessary evil,even in a modern world that circles around technology.Sometimes (34)Asome simple details about your relative position to screens,such as slaying about 60 centimeters away,will help.Also,avoid overhead and other direct sources of light,and use (35)H lamps and window blinds while looking at digital devices instead.
Beyond the ways that you relate to digital screens,there are also ways to change how you view screens that are helpful in (36)K eyestrain.To begin with,your computer screen should be high-resolution (高分辨率),and may require a screen to decrease(37)I.Also,be aware that''computer glasses,"which cut down glare(刺眼的光} and blue light,are (38)B on the markect.
Finally,many of us fall into bad habits while usiug digital screens that only(39)D the effects of eyestrain.When viewing digital screens,many people blink (眨眼) one third less often than they usually do.Place a reminder on your computer to"blink!"so that your eyes don't dry out.Also,(40)G your eyes'focusing muscles by using the 20-20-20rule:every 20minutes,focus on something 20 feet away for 20 seconds.
There are many other methods used to help relieve eyestrain,so find what works for you rather than giving in to tired vision.

分析 很多人都有视疲劳,文章给出了几条建议来对抗视疲劳.

解答 31-40  E C J A H K I B D G
31.E 考查形容词.根据前面的 eyes dry,watery,seeing double 可知,这些都是computer-vision syndrome症状,所以be sensitive to light意思是对光敏感也是表现之一.
32.C 考查名词.句意为 digital eyestrain和长期眼睛暴露在电脑屏幕前有关系.exposure to暴露于…
33.J 考查非谓语.此处interrupted是过去分词形式做定语,修饰sleep patterns,表示被动,意思是被扰乱的睡眠模式.
34.A 考查非谓语.此处所填部分是句子的主语,所以需要用动名词形式,即changing,意思是改变你对着电脑的位置.
35.H 考查非谓语.shaded是过去分词形式,修饰lamps意思是被遮阴的灯.
36.K 考查动名词.前面内容提到对抗eyestrain的方法,此处there are also ways 暗示还 有其他的方法对抗视觉疲劳,in是介词,所以后需用动名词形式.
37.I 考查名词.根据your computer screen should be high-resolution 电脑增加分辨率是为了减低辐射.
38.B 考查形容词.此处考查固定短语 be available for可得到,可利用.
39.D 考查动词.句子里many of us fall into bad habits 是主语,这样的 一些坏习惯会恶化视疲劳的影响.
40.G考查动词.此处rest是动词,使…休息,句意为使你的眼睛得到休息.

点评 在做选词填空题时,很重要的一点就是要确认空格处所要填的词的词性,然后根据句子的法则,也是就是句法来判断所要填的词.

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