雅思机经听力试题--建筑材料及答案解析.doc

1、雅思机经听力试题-建筑材料及答案解析(总分：16.00，做题时间：120 分钟)一、人造建筑材料(总题数：1，分数：2.00)Listen to the statement and complete the following sentences with NO MORE THAN THREE WORDS.（分数：2.00）(1).Structural materials such as wood，concrete, bitumen, structural day and concrete units, 1 steel are usually used in civil engineering

2、 applications or construction. （分数：1.00）填空项 1:_(2). 1 , aggregates, bituminous binder, lime, and cement are the most important highway materials.（分数：1.00）填空项 1:_二、木材的加工处理(总题数：1，分数：2.00)Listen to the conversation and circle the appropriate letter.（分数：2.00）(1).Before using, the materials should underg

3、o _ .（分数：1.00）A.choosing.B.quality test.C.processing.(2).The reason why the materials should be transformed is that _ .（分数：1.00）A.they are too roughB.they are too expensiveC.they are too old三、石材的加工处理(总题数：1，分数：2.00)Listen to the statement and circle the appropriate letter.（分数：2.00）(1).Before stone pr

4、ocessing, what must be taken into account?（分数：1.00）A.the size of stoneB.the choice of machineryC.the kind of stone(2).Which is not included in the general process flow of stone products?（分数：1.00）A.block sawingB.slab paintingC.cutting to strips四、不同材料的选择(总题数：1，分数：4.00)Listen to the conversation and fi

5、ll out the table below. Write NO MORE THAN THREE WORDS for each blank. （分数：4.00）填空项 1:_填空项 1:_填空项 1:_填空项 1:_五、木材质量的评估(总题数：1，分数：3.00)Listen to the statement and complete the following sentences with NO MORE THAN THREE WORDS.（分数：3.00）(1).The evaluation of tree stems includes volume, 1 ,and products.（分

6、数：1.00）填空项 1:_(2).The evaluation system doesnt use words to evaluate the quality of wood,because words are 1 , and ambiguous in description.（分数：1.00）填空项 1:_(3).Reliable 1 is used in the detection of decay in standing trees.（分数：1.00）填空项 1:_六、材料的反光率(总题数：1，分数：3.00)Listen to the statement and fill out t

7、he table below. Write one word and/or a number for each blank. （分数：3.00）填空项 1:_填空项 1:_填空项 1:_雅思机经听力试题-建筑材料答案解析(总分：16.00，做题时间：120 分钟)一、人造建筑材料(总题数：1，分数：2.00)Listen to the statement and complete the following sentences with NO MORE THAN THREE WORDS.（分数：2.00）(1).Structural materials such as wood，concret

8、e, bitumen, structural day and concrete units, 1 steel are usually used in civil engineering applications or construction. （分数：1.00）填空项 1:_ （正确答案：reinforcing and structural）解析：The basic materials used in civil engineering applications or in construction are: wood, concrete, bitumen, structural clay

9、and concrete units, reinforcing and structural steel. These materials are sometimes called structural materials. Added to these materials are plastic, soil, and aluminum. All these materials are used in a number of civil engineering structures, such as dams, bridges, roads, foundations, liquid-retai

10、ning structures, waterfront structures, buildings, and retaining walls. The most important highway materials are soil, aggregates, bituminous binder, lime, and cement.(2). 1 , aggregates, bituminous binder, lime, and cement are the most important highway materials.（分数：1.00）填空项 1:_ （正确答案：Soil）解析：二、木材

11、的加工处理(总题数：1，分数：2.00)Listen to the conversation and circle the appropriate letter.（分数：2.00）(1).Before using, the materials should undergo _ .（分数：1.00）A.choosing.B.quality test.C.processing. 解析：woman： As far as Im concerned, wood is derived from trees and can be used directly as pieces of lumber obtai

12、ned from the log. man： Yes, but as a raw material in the manufacture of various wood products, the wood always need to undergo processing. woman： What does the processing mean? man： Because the raw materials always have its original shape, and are really too rough to be used. Through processing, the

13、 materials become smooth, regular and delicate. woman： Can you give me an example? man: Ok. For example, we choose the wood from the market, and then we need to cut, bake and plane them. After the wood processing, the material can be used in the construction and decoration of the room. women： It see

14、ms that all the building materials need to go through the processing before being used. man: Yes. Plywood, glutamine timber, and oriented strand board are some of the wood products used most commonly in construction. And the plywood refers to gluing together any of the thin layers.(2).The reason why

15、 the materials should be transformed is that _ .（分数：1.00）A.they are too rough B.they are too expensiveC.they are too old解析：三、石材的加工处理(总题数：1，分数：2.00)Listen to the statement and circle the appropriate letter.（分数：2.00）(1).Before stone processing, what must be taken into account?（分数：1.00）A.the size of st

16、oneB.the choice of machineryC.the kind of stone 解析：Dimensional stone blocks extracted from the quarries have to be processed in order to be transformed into the final products that will be fed in the market. Today the market demands for final products of high accuracy in dimensions and high quality

17、polishing. The processing phase constitutes the most important section of the modern stones industry. The specific kind of natural stone to be processed must always be taken under consideration, because it determines the processing cycle, the choice of machinery, the technology employed, the process

18、ing cost and the commercial value of the products. The processing sequence in general involves the stages of block squaring, block sawing in slabs, slab polishing, slab cutting into strips, strip cutting into tiles and finishing.(2).Which is not included in the general process flow of stone products

19、分数：1.00）A.block sawingB.slab painting C.cutting to strips解析：四、不同材料的选择(总题数：1，分数：4.00)Listen to the conversation and fill out the table below. Write NO MORE THAN THREE WORDS for each blank. （分数：4.00）填空项 1:_ （正确答案：waterproofing compounds）解析：Material should vary according to its type, sharp, etc. For

20、example, bitumen, which comes in variety of forms, is combined with other raw materials in the construction of pavements, roof shingles, waterproofing compounds, and many others. Structural clay and concrete units, commonly called bricks and blocks, are the principal elements in the construction of

21、masonry walls. Structural steel is used in many forms and shapes for the construction of railroad ties, high-rise buildings, roof trusses, and many more. These basic materials are selected for their properties, performance, availability, aesthetics, and cost. Knowledge of all these aspects is essent

22、ial in selecting a suitable material for a particular situation.填空项 1:_ （正确答案：bricks and blocks）解析：填空项 1:_ （正确答案：railroad ties）解析：填空项 1:_ （正确答案：cost）解析：五、木材质量的评估(总题数：1，分数：3.00)Listen to the statement and complete the following sentences with NO MORE THAN THREE WORDS.（分数：3.00）(1).The evaluation of tr

23、ee stems includes volume, 1 ,and products.（分数：1.00）填空项 1:_ （正确答案：quality）解析：Forest Inventory and Analysis, Forest Health Monitoring, and Forest Management Research Work Units need advanced and reliable technologies to evaluate tree stems for volume, quality, and products. Research that ties tree len

24、gth bucking and allocation decisions to advanced data recording and analysis systems is needed. Such a system uses mathematic formula to evaluate the quality of wood, because words are subjective, they are ambiguous in description. Therefore, the researchers will use digital cameras to provide tree

25、stem images for handheld or office computers that assess tree volume and grade, and make product allocation decisions. Besides, the reliable sensor equipment will also be used to detect decay in standing timber.(2).The evaluation system doesnt use words to evaluate the quality of wood,because words

26、are 1 , and ambiguous in description.（分数：1.00）填空项 1:_ （正确答案：subjective）解析：(3).Reliable 1 is used in the detection of decay in standing trees.（分数：1.00）填空项 1:_ （正确答案：sensor equipment）解析：六、材料的反光率(总题数：1，分数：3.00)Listen to the statement and fill out the table below. Write one word and/or a number for each

27、 blank. （分数：3.00）填空项 1:_ （正确答案：1.0）解析：Reflectance in general means that some wavelength of electromagnetic radiation is going from one medium (usually air) into another medium (glass, water, diamond, etc.) and then bounce back out and returned at a specific angle. When we are choosing the material f

28、or construction, we need to take the materials reflectance rate into consideration. Generally speaking, the reflectance rate of polished silver is almost 1.0, and that of the plastic painted white is proximately 0.8, the quarry tiles is only about 0.1. However, many materials reflectance rate can reach almost 0. If you dont like so much light, maybe it is a good choice for you.填空项 1:_ （正确答案：0.8）解析：填空项 1:_ （正确答案：1.0）解析：