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1、2022年考博英语-哈尔滨工业大学考前模拟强化练习题（附答案详解）1. 单选题The term remote sensing refers to the techniques of measurement and interpretation of phenomena from a distance. Prior to the mid-1960s the interpretation of film images was the primary means for remote sensing of the earths geologic features. With the developm
2、ent of the optomechanical scanner, scientists began to construct digital multispectral images using data beyond the sensitivity range of visible light photography. These images are constructed by mechanically aligning pictorial representations of such phenomena as the reflection of light waves outsi
3、de the visible spectrum: the refraction of radio waves, and the daily changes in temperature in areas on the Earths surface. Digital multispectral imaging has now become the basic tool in geologic remote sensing from satellites.The advantage of digital over photographic imaging is evident: the resul
4、ting numerical data are precisely known, and digital data are not subject to the vagaries of difficult-to-control chemical processing with digital processing, it is possible to combine a large number of spectral images. The acquisition of the first multispectral digital data set from, the multispect
5、ral scanner (MSS) aboard the satellite Landsat in 1972 consequently attracted the attention of the entire geologic community. Landsat MSS data are now being applied to a variety of geologic problems that are difficult to solve by conventional methods alone. These include specific problems in mineral
6、 and energy resource exploration and the charting of glaciers and shallow seas.A more fundamental application of remote sensing is to augment conventional methods for geologic mapping of large areas. Regional maps present compositional structural and chronological information for reconstructing geol
7、ogic revolution. Such reconstructions have important practical applications because the conditions under which rock units and other structural features are formed influence the occurrence of ore and petroleum deposits and affect the thickness and integrity of the geologic media in which the deposits
8、 are found.Geologic maps incorporate a large, varied body of specific field and laboratory measurements, but the maps must be interpretative because field measurements are always limited by rock exposure, accessibility and labor resources. With remote-sensing techniques, it is possible to obtain muc
9、h geologic information more efficiently than it can be obtained on the ground. These techniques also facilitate overall interpretation. Since detailed geologic mapping is generally conducted in small areas, the continuity of regional features that had intermittent and variable expressions is often n
10、ot recognized, but in the comprehensive views of Landsat images these continuities are apparent. However, some critical information cannot be obtained through remote sensing, and several characteristics of the Landsat MSS impose limitations on the acquisition of diagnostic data. Some of these limita
11、tions can be overcome by designing satellite systems especially for geologic purposes; but to be most effective, remote sensing data must still be combined with data from field surveys, laboratory tests, and the techniques of the earlier twentieth century.1.Which of the following can be measured by
12、the optomechanical scanner but not by visible light photograph?2.Lands images differ from conventional geologic maps in that the former（ ） .3.The passage provides information about all of the following topics except （ ）.4.What does the author mention about “the conventional methods”？5.According to t
13、he author（ ） .问题1选项A.The amount of visible light reflected from oceansB.Daily temperature changes of areas on the Earths surface.C.The degree of radioactivity emitted by exposed rocks on the earths surface.D.Atmospheric conditions over large landmasses.问题2选项A.reveal the exact size of petroleum depos
14、its and ore depositsB.indicate the continuity of features that might not otherwise be interpreted as continuousC.predict the movements of glaciersD.provide highly accurate data about the occurrence of mineral deposits问题3选项A.the principle method of geologic remote sensing prior to the mid-1960sB.some
15、 phenomena measured by digital multispectral images in remote sensingC.some of the practical uses of regional geologic maps.D.problems that are difficult to solve solely through conventional methods of geologic mapping问题4选项A.They consist primarily of field surveys and laboratory measurements.B.They
16、are not useful in providing information necessary for reconstructing geologic evolution.C.They have rarely been used by geologists since 1972.D.They are used primarily to gather compositional information about geologic features.问题5选项A.geologic mapping is basically an art and not a scienceB.geologic mapping has not changed significantly since the early 1
