英语2.docx

1、英语2. Multiple choice（20Points）( )1.At first, all coal was hewed hand from the solid bed by use of pick and bar. A. byB. inC. fromD. with( )2.Coastal swamps are more likely to be preserved than inland swamps they have a better chance of being covered by the sea and buried by sediments deposited on th

2、e sea floor. A. soB. thenC. andD. because( )3. is the physical property of coal which determines the relative ease of pulverizing or grinding a coal. A. GrindabilityB. StrengthC. StabilityD. Slaking( )4.The initial exploration drilling program is designed the data obtained provide an inferred confid

3、ence level. A. so thatB. thenC. soD. such that( )5.In fact, surveying surface mining operations is not too much from other surveying methods. A. differB. differenceC. differencesD. different( )6.Because of the wide of natural conditions encountered underground, different mining systems have been dev

4、eloped. A. categoryB. typeC. kindD. variety( )7.The chock is the most employed powered support in use today. A. commonB. commonlyC. rarelyD. rare( )8.All coal seams using the conventional mining processes must be cut a term unique to the mining of coal and other sedimentary mineral deposits salt and

5、 potash. A. so asB. as well as C. such asD. such that( )9.Tandem system of hoisting in deep shafts consists in having skips in the same compartment, the upper skip with a rope equal to half the depth of shaft, the lower with its rope attached to bottom of upper skip. A. 1 B. 2C. 3D. 4( )10.A neutral

6、 split will always have a quantity of airflow, primarily a result of the belts passing through the doors. A. asB. beC. isD. with( )11.In determinations of rank of coal, mineral matter is excluded from the analysis it in no way reflects the degree of metamorphism of the coal. A. because ofB. due toC.

7、 althoughD. as( )12.A blast round consists of cut, relief, breast, and trim hole. The portion is the most important. A. cutB. reliefC. breastD. trim( )13.Some coal seams are hard and without definite cleats. Others are weak, have pronounced cleats, and break with pressure. A. hardlyB. hardC. easilyD

8、. easy( )14.As the plow or shearer makes a cut, each chock is successively advanced toward the face a distance approximately equal to the of cut. A. lengthB. depthC. widthD. height( )15. cover crops are possible, there are at least four factors to consider: site preparation, planting time, planting

9、method, and seed or seed mixture. A. WheneverB. WhenC. WhereverD. Where( )16.The protective mining methods should be such that they the amount of deformation occurred on the surface and the structures. A. reduceB. induceC. produceD. introduce( )17.In the US, longwall mining with special techniques c

10、an be effectively for safe extraction of coal under surface structures. A. adoptedB. adeptC. adoptD. apt( )18.Training records will depend largely upon training is given. A. whatB. whichC. thatD. how( )19.The most critical factor in planning the manpower requirement is the productivity that will per

11、mit the mine to be competitive. A. annualB. dailyC. tons per man-dayD. monthly( )20.Early in geologic time, although not recognized in very earliest sedimentary rocks, animals and simple marine plants developed. A. butB. whileC. stillD. yet. Fill in the blanks（10Points）21.Surface mining was the earl

12、iest method of coal. 22.Mine maps are made to scales of distances. 23.Socio-legal aspects of mine planning that consist essentially of the effects of mining operation on the health and safety of the miner and on the environment also play a large role in . 24.Observations on the solid coal ahead of t

13、he longwall faces showed that if the immediate roof is weak and overburden pressure is large, of various types will be induced in the solid coal. 25.Sulfur in coal occurs in two forms, and inorganic ( free ) . 26.Frequently, it is inferred in the mining industry that safety and productivity are with

14、 one another and that the mining system selected must represent a compromise between the two. 27.Haulage in the shafts is usually accomplished by hoisting of the filled mine cars on multistage cages or by . 28.Support choice depends on cost, ground stress and . 29.In mines where it is known that the

15、 roof will continuously and seriously deteriorate, it is sometimes better and cheaper in the long run to the roof and ribs. 30.In the late 1700s men were employed for mine haulage and human power gave way progressively to dogs, ponies, mules, horses, and finally power. . Terminology translation（10 P

16、oints）A. Translate the technical terms into Chinese.（5 Points）31.face haulage32.interrelationship33.moist34.ventilation control35.dewaterB. Translate the technical terms into English.（5 Points）36.矿坑37.地质时期38.基建费39.原煤40.岩石突出. Reading comprehension（30 Points）Passage 1Surveying is used to locate object

17、s, lines, or areas in relation to a reference point or line.There are many types of surveying methods. Some examples include: land surveying for determining boundaries of land areas; route surveying for locating roads, highways, right-of-ways, and haulways; city surveying for laying out lots, street

18、s, and alleys; and mining surveying for projecting mine openings and locating mining operation.Surveying methods are further classified as either Plane or Geodetic, depending on whether or not the curvature of the earth is taken into account. Plane surveying techniques consider the area surveyed as

19、being capable of reduction to a horizontal or plane surface, and unless the area is of considerable size, no appreciable error of measurement will likely arise. Geodetic surveying, on the other hand, takes into consideration the curvature of the earth and corrections or adjustments are made to surve

20、ys which cover large areas and distances.Almost all surveying methods are concerned with measurements to determine the relative direction and distance of one point of location to another. The practice of determining relative elevations is known as leveling and plays an important role in many types o

21、f surveys such as route or mining surveying where differences in elevations may be needed to plan for haulage grades or drainage systems. ( ) 41.The first term “surveying” in this passage can be defined as a work to .A. locate objects, lines, or areas in relation to a reference point or lineB. measu

22、re the distance between two objectsC. evaluate the altitude of an objectD. determine the coordinate of a point( ) 42.The purpose of mining surveying is to .A. determine boundaries of land areasB. locate roads, highways, right-of-ways, and haulwaysC. survey for projecting mine openings and locating m

23、ining operationD. lay out lots, streets, and alleys( ) 43.Which of the followings can be regarded as the most appropriate basis that surveying methods are further classified as either Plane or Geodetic?A. whether or not the area surveyed is flatB. whether or not the curvature of the earth is conside

24、redC. the size of the area surveyedD. the purposes of measurement( ) 44.Appreciable error of measurement will likely arise in Plane surveying when .A. the size of the area surveyed is considerableB. the scale of the area surveyed is smallC. there is many barriersD. it is rainy( ) 45.The task of leve

25、ling is to determine .A. the azimuthB. relative coordinatesC. the directionD. relative elevationsPassage 2The line brattice is essentially a space divider or temporary partition made of an impervious material that is installed and maintained very carefully and kept as close to the face as possible.

26、Its purpose is to guide the airflow through the face area and last open crosscut and into the return. Brattices were formerly ( and to some extent still are ) made of untreated jute, but nylon reinforced plastics and similar materials are more commonly used in them today. While the more effective ma

27、terial is invariably higher in initial cost, it results in lower overall expense in that it allows for greater reuse and less air leakage.The line brattice is installed so as to split the heading longitudinally and thus provide an inlet as well as a return from the face to the last open crosscut. Si

28、nce the mining machine must have room to maneuver on one side of the brattice, it is not practical to split the entry evenly, so a wide side is provided for the machine. The air may be brought up the narrow side and, after it sweeps by the face, returned on the wide side, as in the blowing system or

29、 it may be forced in the reverse direction as shown in the exhaust system. Since the blowing system produces a high gas and dust, returns over the machine and its operator. As a result, this system is rarely used today. The more commonly employed exhaust system, with intake air coming in on the wide

30、 side passes over the machine operator before it reaches the face. However, since the air velocity provided at the face by the exhaust systems is low, it does a less effective job of diluting the gas there. In fact, the corner of the face opposite the end of the brattice can easily gas up, so it is

31、imperative that the end of the brattice be maintained no farther than 3 m from the face.( ) 46.The term “impervious” in the 1st line in Paragraph 1 can be best explained by .A. untreatedB. hermeticC. impermeableD. water-resistant( ) 47.The line brattice is set to .A. provide an inlet from the face to the last open crosscutB. guide the airflow through the face area and last open crosscut and into the returnC. provide a