工程硕士-专业英语

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1、工程硕士《专业英语》ContentsLessonOne.TheEarth3LessonTwo.CommonMinerals6LessonThree・Geochemistry9LessonFour・SedimentaryRocks14LessonFive・Coal-FormingEnvironments17LessonSix.CoalBasins20LessonSeven.PrinciplesofAppliedGeophysics（应用地球物理）23LessonEightPlateTectonics:aReviewandSum

2、mary25LessonNine・SedimentaryOrganicMatter37LessonTen.SequenceStratigraphy地层学40LessonElevenOrogenicgolddeposits42LessonOne.TheEarthFromclassicaltimesithasbeenknownthattheearthisroughly（概略地）spherical（球形的）inshape.Actuallytheplanet（行星）isshapedmorelikeaslightlyflattened

3、（扁平的,压扁的）ballwhosepolar（两极的）radius（半径）isabout21kmshorterthanitsequatorial（赤道的）radius.Theaverageradiusis6371km.Theearthsspecificgravity（地‘C?弓I力,重力）is5.5.Itis5.5timesasheavyasanequalvolumeofwatcr.Thespecificgravityisgreaterthanthatofanyotherplanetinthesolar（太阳的，日光的）s

4、ystem,butnotappreciably（略微,有一点）differentfromthatofMercury（水星），Venus（金星）andMars（火星）.Becausetheaveragespecificgravityofsurfacerocksisonlyabout2.7.Thematerialexistingdeepwithintheearthmusthaveaspecificgravitywellinexcessof（超过）the5.5average・Verylikely（可能），thematerialat

5、theearth'scenterhasaspecificgravityashighasabout15.ThesplendidphotographsoftheearthtakenfromspacebyApollo（阿波罗）astronauts（宇航员）remindusthatourplanetismorethanarockyglobeorbitingthesun.Whiskpatternsofwhitecloudsabovetheazure（蔚蓝O勺）bluecolortellusofthepresenceofanatmosp

6、here（大气）andhydrosphere（水圈）.Hereandthereonecanevendiscern（区分，辨另U）patchesoftan（棕褐色）thatindicatestheexistenceofcontinents・Greenish（呈绿色的）hues（色调）provideevidenceoftheplanet'smostremarkablefeature:thereislifeonearth・THEATMOSPHEREWelivebeneath（在…之卜）athinbutvitalenvelopeof

7、gases（气体包层）calledatmosphere.Werefertothesegasesasair"Pureair^iscomposedmainlyofnitrogen（氮气）（7&03%）andoxygen（氧气）（20.99%）.Theramianing0.98%ofairismadeofargon（氮气），carbondioxideandminutequantitiesofothergases・Oneofthese"other^componentsfoundmostlyintheupperatmosphereis

8、aformofoxygencalledozone（臭氧）.Ozoneabsorbsmuchofthesurfslethal（致命的）ultraviolet（紫外线的）radiation（辐射）,andisthusofcriticalimportanceorganisms（有机彳本，生物体）