学位英语

【导读】2013年职称英语考试将于3月30日举行，为帮助考生有效复习职称英语卫生类考试，中大职称英语考试网整理了卫生类模拟套题，希望对您通过考试有所帮助！

第六部分：完形填空（第51～65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 Safety

An avalanche is a sudden and rapid flow of snow, often mixed with air and water, down a mountainside. Avalanches are ＿＿51＿＿ 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 ＿＿52＿＿ supports it. Determining the critical load, the amount of over-burden which is ＿＿53＿＿ to cause an avalanche, is a complex task ＿＿54＿＿ the evaluation of a number of factors.

Terrain slopes flatter than 25 degrees or steeper than 60 degrees typically have a low ＿＿55＿＿ of avalanche. Snow does not ＿＿56＿＿ significantly on steep slopes; also, snow does not ＿＿57＿＿ easily on fiat slopes. Human-triggered avalanches have the greatest incidence when the snow's angle of rest 1is ＿＿58＿＿ 35 and 45 degrees; the critical angle, the angle ＿＿59＿＿ which the human incidence of avalanches is greatest, is 38 degrees. The rule of thumb2 is: A slope that is flat 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 ＿＿60＿＿; 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 backcountry4 is never 100% safe. Good avalanche safety is a continuous ＿＿61＿＿, including route selection and examination to the snowpack, weather ＿＿62＿＿, and human factors. Several well-known good habits can also ＿＿63＿＿ the risk. If local authorities issue avalanche risk reports, they should be considered and all warnings should be paid ＿＿64＿＿ 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 ＿＿65＿＿ 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 about B include C involving D contain

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 at B of C in D on

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

参考答案：

51 A 52 B 53 B 54 C 55 C

56 D 57 B 58 B 59 A 60 A

61 D 62 A 63 B 64 C 65 A

编辑推荐：

2013年职称英语考试报名时间汇总

2013年职称英语考试用书火热预定中>>>

2013年职称英语考试网络课堂辅导

（责任编辑：vstara）

共9页,当前第8页  第一页  前一页  下一页