首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Many people believe the glare from snow causes snowblindness. Yet, dark glasses or not, they find themselves 【C1】______headaches
Many people believe the glare from snow causes snowblindness. Yet, dark glasses or not, they find themselves 【C1】______headaches
admin
2010-06-26
35
问题
Many people believe the glare from snow causes snowblindness. Yet, dark glasses or not, they find themselves 【C1】______headaches and watering eyes, and even snowblindness, when【C2】______ to several hours of "snow light".
The United States Army has now determined that glare from snow does not cause snowblindness in troops in a snow-covered country.【C3】______, a man’s eyes frequently find nothing to focus on in a broad【C4】______ of barren snow-covered terrain. So his gaze continually shifts and jumps back and【C5】______ over the entire landscape【C6】______ something to look at. Finding nothing, hour after hour, the eyes【C7】______stop searching and the eyeballs become 【C8】______ and the eye muscles ache. Nature【C9】______ this irritation by producing more fluid which covers the eyeball. The fluid covers the eyeball in increasing【C10】______until vision blurs, then is【C11】______, and the result is total, even though temporary, snowblindness.
Experiments【C12】______ the Army to a simple method of overcoming this problem. Scouts【C13】_____ of a main body of troops are trained to shake snow 【C14】______evergreen bushes, creating a dotted line as they cross completely snow-covered landscape.【C15】______ the scouts themselves throw lightweight, dark colored objects ahead on which they too can focus. The men【C16】______ can then see something. Their gaze is 【C17】______. Their eyes focus on a bush and having found something to see, stop 【C18】______the snow-blanketed landscape. By focusing their attention on one object 【C19】______,the men can cross the snow 【C20】______becoming hopelessly snowblind or lost. In this way the problem of crossing a solid white terrain is overcomed.
【C5】
选项
A、onwards
B、forward
C、fourth
D、forth
答案
D
解析
固定搭配题。back and forth为固定搭配,表示“来来回回”。
转载请注明原文地址:https://kaotiyun.com/show/IT1K777K
0
专业英语四级
相关试题推荐
Itisnaturalforyoungpeopletobecriticaloftheirparentsattimesandtoblamethemformostofthemisunderstandingsbetw
Itisnaturalforyoungpeopletobecriticaloftheirparentsattimesandtoblamethemformostofthemisunderstandingsbetw
WhatconclusioncanwedrawaboutStevebeforehewenttothesummerschool?
Theprominentscientisthasbeenconferredan______degreebytheuniversity.
MostpeoplebelievethattheIraqproblemis______amilitaryone.
PopstarstodayenjoyastyleoflivingwhichwasoncetheprerogativeonlyofRoyalty.Wherevertheygo,peopleturnoutinthe
Thecaseforcollegehasbeenacceptedwithoutquestionformorethanageneration.AllhighschoolgraduatesOughttogo,says
Learnfromthemistakesofothers.Youwon’t______tomakethemallyourself.
WashingtonIrvingwasAmerica’sfirstmanofletterstobeknowninternationally.Hisworkswerereceivedenthusiasticallyboth
Iwasalwaystaughtthatitwas______tointerrupt.
随机试题
我国加入WTO后签署的第一个自由贸易协定是()
红细胞管型主要见于
某企业“营业收入”项目为5000万元;“应收账款”账目年初数为1200万元(其中坏账准备100万元),年末数为1480万元(其中坏账准备120万元);增值税销项税额585万元。如果不考虑其他因素的影响,该企业现金流量表中“销售商品、提供劳务收到的现金”项目
如果该企业要制定一个招聘计划应包括的主要内容有()。该企业对外招聘技术人员的来源可能有()。
证券公司为证券交易创造一个流动性较强的市场并维持市场价格的相对稳定,这指的是证券公司充当()的角色。
教育对个体和社会发展所产生的作用只能是正向的、促进的。()
民事法律是调整平等主体的公民之间、法人之间、公民与法人之间的财产关系和人身关系的法律规范的总和。下列属于民事法律关系的有()。
以下是2006年农村实用人才现状:从区域分布看,我国东部地区231.4万人;中部地区201.7万人;西部地区145.9万人。从年龄分布看,40岁以下的247.9万人。从学历看,中专以上学历的22.7万人。农村实用人才中,生产能手占总数的56.
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
运动参与类,按人体参与活动的基本方式分类,可分为走、跑、跳跃、投掷、攀登、爬越、悬垂支撑和平衡、角力等。()
最新回复
(
0
)