职称英语等级考试全新版30天突破.doc
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1、职称英语等级考试全新版30天突破资料仅供参考第6部分:完形填空(第5165题,每题1分,共15分) 下面的短文有15处空白,请根据短文内容为每处空白确定1个最佳选项。Avalanche and Its SafetyAn 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 aval
2、anches are caused by an over-burden of material, typically snowpack, that is too massive and unstable 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 s
3、lopes 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 avalanches have the greatest incidence when the snows angle of rest is_8_ 35 and 45 degrees; th
4、e critical angle, the angle at which the human incidence of avalanches is greatest, is 38 degrees. The rule of thumb 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_;
5、 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 is never 100% safe.Good avalanche safety is a continuous_11_, including route selection and examination of the snowpack,
6、weather_12_, and human factors. Several well-known good habits can also_13_ the risk.If local authorities issue avalanche risk reports,they should be considered and and all warnings should be paid _14_ to. Never follow in the tracks of others without your own evaluations; snow conditions are almost
7、certain to have charged 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.词汇:avalanche / vl:nt/n.雪崩snowpack / snupk/n积雪场terrain / terein /n.地形,地势steep /sti:p/ adj,险峻的,陡峭的trigger / t
8、rig /n.引起,激发incidence / insidns /n.,发生(率)ski /ski:/v滑雪complexity / kmpleksiti /n复杂性注释:1angle of rest:这里指积雪保持静止的角度。2. rule of thumb:指“a broadly accurate principle, based on experience or practice rather than theory”,即“通用法则,经验法则”。3Additionallv:是一个副词,用来引入新的事实或论点,意为“另外”。4backcountry:人烟稀少的地区练习:1. A among
9、 B of C to D in2. A when B that C who D whose3. A mostly B likely C clearly D surely4. A are B will be C is D was5. A weight B form C risk D work6. A fall B flow C roll D gather7.A fall B flow C roll D gather8.A among B between C with D for9.A thick B thin C flat D rocky10.A use B time C snow D rain
10、11.A journey B trip C fact D process12.A conditions B reports C forecast D event13.A increase B reduce C improve D remove14.A price B effort C attention D money15.A missing B grown C big D fresh答案与题解:1A 表示“雪崩是山上可能发生的最大危险之一”的意思,因此应该选择among(在之中)。2B 从该句的语法结构上来看,此处需要一个关系代词,代替slope,因此that是最佳选择。选项A、C、D均不符
11、合语法。3B 选项A不符合语法,C和D符合语法,但不符合常识:过度的雪的积压可能导致雪崩,而不是必定导致雪崩。因此,B是最佳答案。4.C 该句的主语是Determining the critical load,从上下文来看应该使用般现在时,因此C是正确答案。5C要确定本题答案的一个有效的方法是排除法。a low weigh/form work of avalanche都不合逻辑,只有a low risk of avalanche符合上下文的意思。下面的句子解释了low risk of avalanche的道理,更证实了选risk是正确的。6.D 第6和第7题能够一起考虑。整个句子的意思是:在较
12、陡峭的坡面上,雪不会大量堆积。在较为平坦的坡面,雪不会轻易滑动。7.B (见6)8.B 理解了句子的意思就不难判断选项:雪在静止状态下,角度在35 - 45度之间,最可能发生人为触发的雪崩。between:在之间。9.C 这个句子说明的是什么样的山坡最易发生雪崩,即,A slope that is flat enough to hold snow but steep enough to ski。flat在此做“平坦”解,与后面的steep形成反义。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。因此,这里的选择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
13、被滑雪者使用的越多,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 选项A、B、C都能够与weather搭配,可是根据上下文,只有A最为符合文章的内容。13.B 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 该句是作者给出的一系列忠告之一,即,认真观察地形,注意
14、明显的雪崩路径:没有植物或植物被毁坏的地方。选项B、C、D均不符合句义。Free Statins With Fast Food Could Neutralize Heart Risk Fast food outlets could provide statin drugs free of _1_ so that customers heart disease dangers of fatty food, researchers at Imperial College London study _2_in a new study. Statins reduce the _3_of unhealt
15、hy LDL cholesterol in the blood. A wealth of trial data has proven them to be highly effective at lowering a persons heart attack _4_. In a paper published in the American Journal of Cardiology , Dr Darrel Francis and colleagues calculate that the reduction in heart attack risk offered by a statin i
16、s _5_to offset the increase in heart attack risk from _6_a cheeseburger and drinking a milkshake.Dr Francis,from the National Heart and Lung Institute at Imperial College London, who is the senior author of the study, said: Statins dont cut out all of the _7_ effects of cheeseburgers and French frie
17、s. Its better to avoid fatty food altogether. But weve worked out that in terms of your_8_of having a heart attack, taking a statin can reduce your risk to more or less the same _9_ as a fast food meal increases it. ”Its ironic that people are free to take as many unhealthy condiments in fast food o
18、utlets as they_10_, but statins,which are beneficial to heart health, have to be prescribed. It makes sense to make risk-reducing statins available just as easily as the unhealthy condiments that are _11_free of charge. It would cost less than 5 pence per _12_- not much different to sachet of sugar,
19、 Dr Francis said.When people engage in risky behaviours like driving or smoking, theyre encouraged to take _13_that lower their risk, like _14_ a seatbelt or choosing cigarettes with filters.Taking a statin is a rational way of _15_some of the risks of eating a fatty meal.词汇:statin n降胆固醇药物outlet/aut
20、lit/n销售点cholesterol/ klestrul /n.胆固醇offset/ :fset /v抵消,补偿cheeseburger/ ti:zb:g /n芝士汉堡包milkshake n奶昔condiment/ kndimnt /n调味品sachet/ sein小袋,小包rational/ rnl / adj.合理的注释:1Fast food outlets could provide statin drugs:句中的could是一种委婉表示建议的用词,意为“能够”。2Imperial College London:帝国理工学院。该学院于19 由城市和行会学校、皇家矿业学校以及皇家科学
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