职称英语考试第六部分 完形填空(考现成在题目).docVIP

　第6部分：完形填空(第51-65题，每题1分，共15分) 　　考查考生正确把握文章内容，以及在一定语境中准确使用词语的能力。本部分为1篇300-450词的短文，文中有15处空白，每处空白给出4个选项，要求考生根据短文的内容从4个选项中选择1个最佳答案。　　Avalanche and Its Safety雪崩和安全问题 　　An avalanche is a sudden and rapid flow of snow, often mixed with air and water, down a mountain side ,Avalanches are____1____ the biggest dangers in the mountains for both life and property. 　　All avalanches 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____ cause an avalanche,____4____ acomplex task involving the evaluation of a number of factors. 　　Terrain slopes flatter than25degrees or steeper than60degrees 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 snow‘s angle of rest1 is____8____ 35 and45 degrees; the critical angle, the angle at which the human incidence of avalanches is greatest,is38degrees,The rule of thumb2 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,Additionally3,avalanche risk increases with ____10____;that is, the more a slope is disturbed by skiers, die more lijkely it is that an avalanche will occur. 　　Due to the complexity of the subject, winter travelling in the backcountry4 is never 100% safe, Good avalanche safety is a continuous____11____，,including route selection and examination of the snowpack,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 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 terra