专升本英语阅读理解练习模拟题（9.4）

　　准备参加2022年专升本考试的考生请注意，为了帮助考生能取得一个优异成绩，小编给考生整理了专升本英语阅读理解练习模拟题，考生在考前可先来练练手。

       阅读理解：

　　Many people believe the glare from snow causes snow blindness. Yet, wearing dark glasses or not, they find themselves suffering from headaches and watering eyes, and even snow blindness, when exposed to several hours of “snow light”.

　　The Canadian army has now determined that glare from snow does not cause snow blindness in troops in a snowcovered country. Rather, a man’s eyes frequently find nothing to focus on in a broad expanse of barren snowcovered terrain. So his gaze continually shifts and jumps back and forth over the entire landscape in search of something to look at. Finding nothing, hour after hour, the eyes never stop searching and the eyeballs become sore and the eye muscles ache. Nature offsets this irritation by producing more fluid which covers the eyeball. The fluid covers the eyeball in increasing quantity until vision blurs, and then is obscured, and the result is total, even though temporary, snow blindness.

　　Experiments led the army to a simple method of overcoming this problem. Scouts, ahead of a main body of troops, are trained to shake snow from evergreen bushes, creating a dotted line as they cross completely snow-covered landscape; even the scouts themselves throw lightweight, dark colored objects ahead on which they too can focus. The men following can then see something. Their gaze is arrested. Their eyes focus on a bush and having found something to see, stop scouring the snowblanketed landscape. By focusing their attention on one object at a time, the men can cross the snow without becoming hopelessly snow blind or lost. In this way the problem of crossing a solid white terrain is overcome.

　　问题：

　　1.To prevent headaches, watering eyes and blindness caused by the glare from snow, dark glasses are ____.

　　A.indispensableB.ineffectiveC.usefulD.available

　　查看答案

　　【参考答案】B[考点]推理判断题【精析】B 根据第一段第二句“…wearing dark glasses or not, they find themselves suffering from headaches and watering eyes, and even snow blindness, when exposed to several hours of ‘snow light’.”可知，戴不戴墨镜都会产生“雪盲”的症状，如头疼、眼睛流泪等。由此可推知，在这种情况下，墨镜并不起什么作用。indispensable:必需的，不可或缺的;ineffective:无效果的，不起作用的;useful:有用的;available:可用的，可获得的。故选B。

　　2. When the eyes ache, tears are produced to____ .

　　A.loosen the muscles

　　B.remedy snow blindness

　　C.clear the vision

　　D.ease the irritation

　　查看答案

　　【参考答案】D[考点]事实细节题【精析】D 根据第二段第五句“Nature offsets this irritation by producing more fluid which covers the eyeball.”可知，眼泪的产生是为了缓解刺激。故选D。

　　3. Snow blindness may be avoided by ____.

　　A.concentrating on the solid white terrain

　　B.searching for something to look at in snow-covered terrain

　　C.providing the eyes with something to focus on

　　D.covering the eyeballs with fluid

　　查看答案

　　【参考答案】C[考点]推理判断题【精析】C根据第二段第四句“Finding nothing, hour after hour, the eyes never stop searching…”可知，雪盲的产生是因为在雪地里眼睛长时间找不到具体目标聚焦。由此可推知，为了避免雪盲的发生，需要给眼睛提供目标物。故选C。

　　4.The scouts shake snow from evergreen bushes in order to____ .

　　A.leave the men behind something to see

　　B.beautify the landscape

　　C.warm themselves in the cold

　　D.prevent the men behind from losing their way

　　查看答案

　　【参考答案】A[考点]事实细节题【精析】A 根据第三段第二、三句“Scouts, ahead of a main body…The men following can then see something.”可知，侦察兵把雪从常青树上摇下来是为了给后续部队提供可看的目标物。故选A。

　　5.A proper title for this passage would be____ .

　　A.Snow Blindness and How to Overcome It

　　B.Nature’s Cure for Snow Blindness

　　C.Soldiers in the Snow

　　D.Snow Vision

　　查看答案

　　【参考答案】A

　　[考点]主旨大意题

　　【精析】A 通读全文可知，文章先后介绍了雪盲产生的原因以及克服雪盲的方法。故选A。