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
Death comes quickly in the mountains. Each winter holiday makers are caught unaware as they happily ski away from the fixed runs
Death comes quickly in the mountains. Each winter holiday makers are caught unaware as they happily ski away from the fixed runs
admin
2013-06-02
172
问题
Death comes quickly in the mountains. Each winter holiday makers are caught unaware as they happily ski away from the fixed runs, little realizing that a small avalanche (雪崩) can send them crashing in a bone-breaking fall down the slope and leave them buried under tons of crisp white snow. There are lots of theories about how to avoid disaster when hit by an avalanche. Practice is normally less cheerful.
The snow in the Salzburg of Austria where a recent disaster took place was typical avalanche material. For several days before the incident I had skied locally. Early winter snow was wearing thin and covered with ice, On top of that new, warmer flakes were gently falling to produce a dangerous carpet. To the skier who enjoys unmarked slopes it is tempting stuff, deep new power snow on a hard base—the skiing that dreams are made of. And sometimes nightmares.
Snow falls in sections like a cake. Different sections have different densities because of the temperatures at the time of the fall and in the weeks afterwards. Problems come when any particular section is too thick and not sticking to the section beneath. The snow of the past few weeks had been failing in rather higher temperatures than those of December and early January. The result of these conditions is that even a slight increase in the temperature sends a thin stream of water between the new snow and the old. Then the new snow simply slides off the mountain.
Such slides are not unexpected. Local citizens know the slopes which tend to avalanche and the weather in which such slides are likely. Traps are set to catch the snow or prevent it slipping; bombs are placed and exploded from time to time to set off small avalanches before a big one has time to build up; and above all, skiers are warned not to ski in danger areas.
In spite of this, avalanches happen in unexpected areas and, of course, skiers ignore the warnings. The one comfort to recreational skiers, however, is that avalanche incidents on the marked ski slopes are quite rare. No ski resort wants the image of being a death trap.
It would appear from the text that avalanches are brought about because ______.
选项
A、a particular section of snow is not thick enough
B、there is a slight fall in the temperature
C、heavy snowfalls turn into rain
D、the ice between different sections of snow melts
答案
D
解析
推理题。根据第三段最后两句,即使温度稍有升高也足以使积雪融化,新雪移动,从而导致雪崩。
转载请注明原文地址:https://kaotiyun.com/show/OvB7777K
0
大学英语六级
相关试题推荐
NewYear’sDayisthelastbankholidayofthefestiveseason.Itmeansmostpeoplehavetogotoworkthenextday:【B1】______a
MostpeoplethinkoflionsasstrictlyAfricanbeasts,butonlybecausethey’vebeenkilledoffalmosteverywhereelse.Tenthou
MostpeoplethinkoflionsasstrictlyAfricanbeasts,butonlybecausethey’vebeenkilledoffalmosteverywhereelse.Tenthou
A、Helosteverythingincludinghiscomputer.B、Hesufferedfromaseriouscaraccident.C、Hewentabroadtojoinhisfamily.D、H
A、Hewenttohisoffice.B、Heturnedonthecomputer.C、Hecheckedhismails.D、Helistenedtotheradio.B选项均为与He有关的完整句子且谓语动词均使
Internationalairlineshaverediscoveredthebusinesstravelers,themanorwomanwhoregularlyjetsfromcountrytocountryas
Manyyoungpeoplebelievegoodgradesandexcellentinternshipswilllandthemtheir【B1】______job.However,【B2】______towhatth
YaoMing’spreseasonperformances,however,werequestionable,andleftmanywonderingwhyhewasthefirstoverallpick.Hesta
YaoMing’spreseasonperformances,however,werequestionable,andleftmanywonderingwhyhewasthefirstoverallpick.Hesta
随机试题
A.空肠B.十二指肠C.横结肠D.乙状结肠E.盲肠位于右髂窝内的是【】
女性,45岁,3小时前车祸头部受伤,伤后立即昏迷,做CT后入院,入院检查中度昏迷,右瞳孔散大,光反射消失,左上下肢肌张力增高,病理征(+),左顶枕有直径4.0cm头皮下血肿,CT示右额颞部高密度新月影像。最重要治疗是()
A、抑制血管紧张素Ⅱ生成B、抑制血管紧张素与受体结合C、阻止钙离子进入心肌细胞及血管壁平滑肌细胞,使心肌收缩力降低,外周血管扩张D、抑制钠、水重吸收,减少血容量,降低心排血量E、减慢心率,降低心排血量,抑制肾素释放呋塞米作为降压
酮体生成的原料乙酰CoA主要来源是
金铃子的处方应付为槟榔的处方应付为
假设其他条件不变,若白糖期初库存量过低,则当期白糖价格不应该是()。
位于某市的甲地板厂为外商投资企业,2015年8月份购进一批木材,取得增值税专用发票注明不含税价格800000元,当月委托位于县城的乙工厂加工成实木地板,支付不含税加工费150000元。乙工厂11月份交付50%的实木地板,12月份完工交付剩余部分。已知实木地
学习《游褒禅山记》时,教师把“知人论世,与作者在同时期创作的其他作品进行比较阅读,深入理解文中包含的复杂情感和深刻内涵”作为教学目标之一。下面对该教学目标的分析正确的是()。
十二届全国人大五次会议听取和审议了最高人民法院院长所作的工作报告,会议充分肯定了最高人民法院过去一年的工作,同意报告提出的2017年工作安排,决定批准这个报告。这表明()。①我国司法机关的权力受到人大有效制衡②人民法院必须对人大
SevenStepstoaMoreFulfillingJobA)Manypeopletodayfindthemselvesinunfulfillingworksituations.Infact,oneinfourw
最新回复
(
0
)