2017年职称英语试题理工类A完形填空训练题
2017年职称英语考试备考已经开始,不少同学已开始准备2017年职称英语考试复习。为了促进大家的学习积极性,yjbys网小编整理了职称英语相关的复习资料,下面是2017年职称英语试题理工类A完形填空训练题。
Avalanche (雪崩) and Its Safety
An avalanche is a sudden and rapid flow of snow, often mixed with air and water, down a mountainside. Avalanches are__________ (1) the biggest dangers in the mountains for both life and property.
All avalanches are caused by an overburden of material, typically snowpack (积雪场), that is too massive and trustable for the slope__________(2) supports it. Determining the critical load,the amount of over-burden which is __________ (3) to cause an avalanche, __________ (4) a complex task involving the evaluation of a number of factors.
Terrain slopes flatter than 25 degrees or steeper than 60 degrees typically have a low __________(5) of avalanche. Snow does not __________(6) significantly on steep slopes; also, snow does not__________(7) easily on flat slopes. Human-triggered (激发) avalanches have the greatest incidence(发生率) when the snow's angle of rest is __________(8) 35 and 45 degrees; the critical angle, the angle at which the human incidence of avalanches is greatest, is 38 degrees. The rule of thumb (经验法则) is: A slope that is__________(9) enough to hold snow but steep enough to ski has the potential to generate an avalanche, regardless of the angle. Additionally, avalanche risk increases with__________ (10); that is, the more a slope is disturbed by skiers, the more likely it is that an avalanche will occur.
Due to the complexity of the subject, winter travelling in the backcountry (人烟稀少的地区)is never 100% safe. Good avalanche safety is a continuous__________(11), including route selection and examination to the snowpack, weather __________ (12), and human factors. Several we|l-known good habits can also __________ (13)the risk. If local authorities issue avalanche risk reports, they should be considered and all warnings should be paid__________(14) to. Never follow in the tracks of others without your own evaluations; snow conditions are almost certain to have changed since they were made. Observe the terrain and note obvious avalanche paths where plants are__________ (15) or damaged. Avoid traveling below others who might trigger an avalanche.
1.A. among
B. of
C. to
D. in
2.A. when
B. that
C. who
D. whose
3.A. mostly
B. likely
C. clearly
D. surely
4.A. are
B. will be
C. is
D. was
5.A. weight
B. form
C. risk
D. work
6.A. fall
B. flow
C. roll
D. gather
7.A. fall
B. flow
C. roll
D. gather
8.A. among
B. between
C. with
D. for
9.A. thick
B. thin
C. flat
D. rocky
10. A. use
B. time
C. snow
D. rain
11. A. journey
B. trip
C. Fact
D. process
12. A. conditions
B. reports
C. forecast
D. event
13. A. increase
B. reduce
C. improve
D. remove
14. A. price
B. effort
C. attention
D. money
15. A. missing
B. grown
C. big
D. fresh
答案解析:
1.A。这里考查的是介词。这里是说,雪崩是山上可能发生的最大危险之一,因此应该选择among(在……之中)。
2.B。这里考查的是定语从句。根据定语从句引导词的选用原则,确定答案为that,具体参见定语从句【备考助手】。
3.B。这里是说,过度的雪积压导致雪崩。显然是可能而不是必定导致雪崩。所以,B是最佳答案。
4.C。这里考查的是主谓一致。该句的主语是determining the critical load,从上下文来看应该使用一般现在时,所以C是正确答案。
5.C。这里是说,坡度小于25度或者大于60度有较低的发生雪崩的__________ 。weight(重量)、form(形式)、risk(风险)、work(工作)分别代入,只有a low risk of avalanche符合上下文的意思。后面的句子解释了a low risk ofavalanche的道理,证实了应选risk。
6.D。第6题和第7题是讲为什么坡度小于25度或者大于60度发生雪崩的风险较低。本句是说,在坡度大的坡上,雪不会大量。9ather(聚集)符合语境,因为在坡度大的坡上雪不聚集才不会发生雪崩。
7.B。本句是说,在较为平坦的坡面,雪不会轻易__________ 。roll(滑动)符合语境,因为在较为平坦的坡面上雪不会轻易滑动,所以发生雪崩的危险比较低。
8.B。本句是说,坡度在35——45度之间,最可能发生人为触发的雪崩。between意为“在……之间”。
9.C。这个句子说的是什么样的山坡最易发生雪崩,flat有“平坦”之意,与后面的steep形成对比。
10.A。句中的that is表明,后半部分是对前半部分的进一步说明。所以,这里要根据下文的意思判断。use是最佳选择。整个句子的意思是:山坡被滑雪者使用得越多,雪崩就越可能发生。
11.D。尽管选项A、B和D都能和continuous搭配,从全段的内容判断,只有process是最佳选择,因为该段描写的是如何防备雪崩及如何做好安全措施等一系列问题。
12.A。从上下文来看,这里谈论的.是如何防备雪崩,包括路线的选择,对积雪的选择,天气和人为因素。选项A、B、C都可以与weather搭配,但是根据上下文,只有weather condition(天气状况)最符合语境。
13.B。从上下文语境来看,这里还是谈论如何防备雪崩,所以选项A不符合句子的意思;C不能和risk搭配;D也不符合句子的意思,因为不可能完全消除雪崩的隐患。
14.c。该句主句使用的是被动语态。第二个动词是pay attention to的被动形式。选项A、B、D均不符合句子的意思。
15.A。从上下文语境来看,该句是作者给出的一系列忠告之一,包括认真观察地形、注意明显的雪崩路径。这里的or是解题线索,表示or前后的词在意思上接近,所以选择missing(缺少的)。
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