主标题：专升本英语模拟试题及答案解析(12.05)

　　专升本英语阅读理解是考试必考题型，对于阅读理解题型考生就要多练习，掌握做题方法。

　　阅读理解：

　　Many people believe the glare from snow causes snow blindness. Yet, with 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 United States Army has now determined that the 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 a snow-covered are

　　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 muscle aches. Nature balances this annoyance by producing more and more liquid which covers the eyeballs. The liquid covers the eyeballs in increasing quantity until vision blurs. and the result is total, even though temporary, snow blindness.

　　Experiments led the Army to a simple method of overcoming this problem. Scouts(侦察兵) 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 can focus too. The men following can then see something. Their gaze is arrested.Their eyes focus on a bush and having found something to see, stop searching through the snow-blanketed landscape. By focusing their attention on one object at a time, the man can cross the snow without becoming hopelessly snow blind or lost. In this way the problem of crossing a solid white area is overcome.

　　问题：

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

　　A.indispensable

　　B.useful

　　C.ineffective

　　D.available

　　【参考答案】C

　　[考点]事实细节题

　　【精析】C 根据第一段第二句“Yet, with dark glasses or not, they find themselves suffering from headaches and watering eyes, and even snow blindness…”可知，不管戴不戴墨镜，人还是会感到头痛，眼睛变湿，甚至产生雪盲。由此可知墨镜在这种情况下是没有效果的。故选C。

　　2.The eyeballs become sore and the eye muscles ache because _________.

　　A.tears cover the eyeballs

　　B.the eyes are annoyed by blinding sunlight

　　C.the eyes are annoyed by blinding snow

　　D.there is nothing to focus on

　　【参考答案】D

　　[考点]事实细节题

　　【精析】D 根据文章第二段前半部分可知，在白雪皑皑的地方，眼睛没有可关注的东西，而为了找到关注点，目光会不断地来回转移，这样就会造成眼珠疼痛，眼肌酸痛。故选D。

　　3.When the eyes are sore, tears are produced to _________.

　　A.clear the vision

　　B.remedy snow blindness

　　C.ease this annoyance

　　D.loosen the muscles

　　【参考答案】C

　　[考点]事实细节题

　　【精析】C 根据第二段倒数第三句“Nature balances this annoyance by producing more and more liquid which covers the eyeballs.”可知，在这种情况下，由于人身体的自然反应，眼睛会分泌液体(眼泪)来缓解这种不舒服。故选C。

　　4. 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

　　【参考答案】C

　　[考点]事实细节题

　　【精析】C 根据最后一段倒数第二句“By focusing their attention on one object at a time, the man can cross the snow without becoming hopelessly snow blind or lost.”可知，把目光聚焦在某个东西上，就可以避免雪盲。故选C。

　　5.A suitable title for the passage would be _________.

　　A.Snow Blindness and How to Overcome It

　　B.Nature’s Cure for Snow Blindness

　　C.Oldie’s in the Snow

　　D.Snow Vision

　　【参考答案】A

　　[考点]主旨大意题

　　【精析】A 本文主要讲述了雪盲症和避免雪盲症的方法。故文章标题应该是选项A。