8.根據(jù)短文內容,從短文后的選項中選出能填入空白處的最佳選項.選項中有兩項為多余選項.
Snowblind--it's a frightening word.Thankfully,it's a condition that is totally preventable.
Snow blindness is a painful,temporary loss of vision due to overexposure to the sun's UV rays.Essentially,snow blindness is caused by a sunburned eye.
(36)AThough it is commonly called snow blindness,the condition can (and often does) occur in the absence of snow.
The terms"snowblind"and"snow blindness"have become popular because snow is highly reflective of ultraviolet radiation.(37)E Also,skiing,mountain climbing and snowboarding usually take place at relatively high altitudes,where the sun's UV rays are stronger.Combined,these factors can double your risk of getting sunburned eyes,compared with being outdoors at lower altitudes in the summertime.
(38)GTelevision journalist Anderson Cooper experienced snow-free snow blindness first-hand a few years ago when he spent a couple hours on a boat in Portugal without sunglasses and ended up"blind for 36hours,"according to his report of the incident.
Not only can you become snowblind without snow--it can happen without sunlight,too!(39)DFor example,sun lamps can cause temporary"snow"blindness if proper eye protection is not used.
(40)FTo relieve pain or discomfort from snow blindness,stay indoors and wear sunglasses.Keep your eyes well-moistened with artificial tears.For additional relief,use over-the-counter pain relievers.Be sure to use only pain relievers you know you can take without worry of an allergic reaction.You also may find that placing a cool,dampened washcloth over your closed eyelids is comforting.

A.You don't need snow to become snowblind.
B.It will likely affect those traveling in snowy conditions.
C.To prevent snow blindness on the slopes,wear sunglasses.
D.Sometimes it occurs from man-made sources of ultraviolet radiation
E..In fact,snow can reflect over 80percent of the UV rays that fall upon it.
F.Snow blindness is scary,but usually it's temporary,and there are ways to relieve the discomfort.
G.But water and white sand also are highly reflective of the sun's UV rays,thus increasing the risk.

分析 "雪盲"是一種很可怕的現(xiàn)象,在沒有雪的情況下也會發(fā)生,文章介紹了幾種可以預防"雪盲"發(fā)生的方法.

解答 AEGDF
36.A 細節(jié)題.根據(jù)后面的句子Though it is commonly called snow blindness,the condition can (and often does) occur in the absence of snow.可知,雖然該詞普遍被叫做"雪盲",但是在沒有雪的地方也會發(fā)生,故選A.
37.E 細節(jié)題.根據(jù)上一句的介紹The terms"snowblind"and"snow blindness"have become popular because snow is highly reflective of ultraviolet radiation可知,這個術語很流行,因為雪能高度反射紫外線,所以snow can reflect over 80percent of the UV rays that fall upon it這句話說雪能反射80%的紫外線,起到承上啟下的作用,故選E.
38.G 上下文語境.根據(jù)后一句話Anderson Cooper experienced snow-free snow blindness first-hand a few years ago 可知,這位記者在沒有雪的地方也經(jīng)歷了"雪盲",可見,水和白沙也有反射紫外線,增加了這種風險,故選G.
39.D 細節(jié)題.從句sun lamps can cause temporary"snow"blindness if proper eye protection is not used.
可知,太陽燈也能造成暫時的"雪盲",推出一些人造的東西也能反射紫外線,故選D.
40.F 概括題.根據(jù)這段的內容介紹可知,主要介紹了幾種減少"雪盲"發(fā)生的方法,故選F.

點評 選句填空應先通讀全文,再結合空白處的前后文暗示,選出正確答案.

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