职称英语考试

Avalanche and Its Safety An a

2014年12月22日来源:职称英语考试 所有评论

试题来源:职称英语模拟题-理工类-完形填空
【单选题】 Avalanche and Its Safety
An avalanche is asudden and rapid flow of snow, often mixed with air and water, down amountainside. Avalanches are____1____ the biggest dangers in the mountains forboth life and property.
All avalanches arecaused by an over-burden of material, typically snowpack, that is too massiveand unstable for the slope____2____ supports it. Determining the critical load,the amount of over-burden which is____3____ cause an avalanche, ____4____acomplex task involving the evaluation of a number of factors.
Terrain slopes flatterthan25degrees or steeper than60degrees typically have a low ____5____ ofavalanche. Snow does not____6____ significantly on steep slopes; also, snowdoes not ____7____ easily on flat slopes. Human-triggered avalanches have thegreatest incidence when the snow’s angle of rest1 is____8____ 35 and45 degrees;the critical angle, the angle at which the human incidence of avalanches isgreatest, is38degrees. The rule of thumb2 is: A slope that is____9____ enoughto hold snow but steep enough to ski has the potential to generate anavalanche, regardless of the angle. Additionally3, avalanche risk increaseswith ____10____;that is, the more a slope is disturbed by skiers, die morelijkely it is that an avalanche will occur.
Due to the complexityof the subject, winter travelling in the backcountry4 is never 100% safe. Goodavalanche safety is a continuous____11____,, including route selection andexamination of the snowpack, weather____12____ and human factors. Severalwell-known good habits can also____13____ the risk. If local authorities issueavalanche risk reports, they should be considered and all warnings should bepaid ____14____ to. Never follow in the tracks of others without your ownevaluations; snow conditions are almost certain to have changed since they weremade. Observe the terrain and note obvious avalanche paths where plantsare____15____ or damaged. Avoid traveling below others who might trigger anavalanche.

1. A amongB of C to D in
2.A when B thatC who D whose
3.A mostly B likelyC clearly D surely
4.A are B willbe C is D was
5.A weight B formC risk D work
6.A fall B flowC roll D gather
7.A fall B flowC roll D gather
8.A among B betweenC with D for
9.A thick B thinC flat D rocky
10.A use B timeC snow D rain
11.A journey B tripC fact D process
12.A conditions B reportsC forecast D event
13.A increase B reduceC improve D remove
14.A price B effortC attention D money
15.A missing B grownC big D fresh


网考网参考答案:A、B、B、C、C、D、B、B、C、A、D、A、B、C、A
大数据分析:根据网考网与考试题库的统计分析,该试题:
71%的考友选择了A选项
15%的考友选择了B选项
1%的考友选择了C选项
13%的考友选择了D选项
考友解析与评论:
 · 应该是A、B、B、C、C、D、B、B、C、A、D、A、B、C、A啊
 · 这个答案靠谱吗?
 · 题目都看不懂,整个就是乱蒙。

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