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.2016B1~15115111.Allhouseswithin100metersoftheseasare(atriskof)flooding.A.indangerB.outofcontrolC.betweenequalsD.inparticular2.Thecoursesgivesyoubasic(instruction)inmaintenance.A.ideaB.termC.aspectD.coaching3.Weareawareofthe(potential)problems.A.possibleB.globalC.ongoingD.central4.Stockmarketprice(tumbled)afterrumorofariseininterestrate.A.regulatedB.increasedC.fellD.maintained5.The(revelation)ofhispastledtohisresignation.A.imaginationB.confirmationC.recallD.disclosure6.Thedetailsofthecostumeweretotally(authentic).A.realB.outstandingC.creativeD.false7.Thenew(garment)fitsherperfectly.A.haircutB.purseC.clothesD.necklace8.Weareworriedaboutthis(fluid)situationfullwithuncertainty..A.stableB.suitableC.changeableD.adaptable9.Theideawasquite(brilliant).A.positiveB.keyC.originalD.clever10.Theyhavebuiltcanalsto(irrigate)thedesert.A.decorateB.changeC.waterD.visit11.Heroveralllanguageproficiencyremainsthatofa(toddler).A.disabledB.pupilC.babyD.teenager12.Thecoastalareahasvery(mild)winter,butthecentralplainsremainextremelycold.A.warmB.severeC.hardD.dry13.Thephobiamayhaveitsrootsinachildhood(trauma).A.fearB.joyC.hurtD.memory14.Youwillhaveto(sprint)ifyouwanttocatchthetrain.A.jumpB.runC.escapeD.prepare15.Jesenisadangerousman,andcanbevery(brutal).A.carelessB.strongC.cruelD.hard.16~22177ABCTheTheoryofEverythingIfStephenHawkinglivesuntiltheyear2017,hewillhavelivedmorethan50yearslongerthanNsdoctorsexpected.Whenhewasacollegestudent,doctorsdiscoveredthathehadararedisease.Thisdiseasecausesagradualdisintegration()ofthenervecellsinthebraincellsthatregulatevoluntarymuscleactivity.Deathalmostalwaysoccurswithintwoorthreeyears.TodayStephenHawkingcannotwalkorspeak.Hecannotmovehisarmsorhishead.Hecannottasteofsmellanything.AndyetthismanisProfessorofMathematicsatCambridgeUniversity,apositionheldbythefamousscientistIsaacNewtonin1669.HawkingIsoftendescribedasthegreatestscientistsinceAlbertEinstein,buttotheworldoutsidescience.Heisalsoknownasthemanwhomadescientifictheoryunderstandable.Hisbook,ABriefHistoryofTime,hassoldovereightmillioncopies.Hesaysthatsincehedoesnothavetothinkabouthisbodyordoanyofthethingsothermenhavetoworryabout,suchaswashingthecarorworkingintheyard,hecandedicateallofhistimetothinking.Thisputshimintheperfectpositiontofindtheanswertothequestionthathehasdedicatedhislifeto.Hisquestionis:Isthereacompletetheoryoftheuniverseandeverythinginit?Despitehistremendousphysicaldisabilities,hehasalreadymadesomeveryimportantdiscoveriesabouttheoriginoftheuniverse,howtheuniverseholdstogether,andhowitwillprobablyend.Hehasalsobeenabletoexplainthesecretsofblackholesinspace.Nowheislookingforasetofrulesthateverythinginouruniversemustobey.HecallsittheTheoryofEverything.Hethinksthatsomeonewillhavefoundtheanswerwithinthenext20years.IfStephenHawkingitabletofindhisTheoryofEverything,hewillhavegiventheworldtheopportunitytounderstandthingsthatwillchangethewholenatureofscienceandprobablyalsothewaywelive.16.StephenHawkingwillbe50yearsoldby2017.A.RightB.WrongC.Notmentioned17.StephenHawkingsuffersfromararebraindisease.A.RightB.Wrong.C.Notmentioned18.StephenHawkingisProfessorofMathematicsatCambridgeUniversity.A.RightB.WrongC.Notmentioned19.ABriefHistoryofTimeisverydifficultforstudentstounderstand.A.RightB.WrongC.Notmentioned20.StephenHawkinghasmuchtimetothinkbecausehedoesn'thavetowork.A.RightB.WrongC.Notmentioned21.StephenHawkinghasspentaroundtenyearsexplainingthesecretsofA.RightB.WrongC.Notmentioned22.TheTheoryofEverythingIsabouttherulesthateverythingintheuniversefollows.A.RightB.WrongC.Notmentioned23~30182123~2662~51227~3061GeothermalEnergy1Sinceheatnaturallymovesfromhotterregionstocoolerones,theheatfromtheearth'scenterflowsoutwardstowardsthesurface.Inthisway,ittransferstothenextlayerofrock.Ifthetemperatureishighenough,someofthisrockmeltsandformsmagma().Themagmaascendsinitsturntowardstheearth'ssurface.Itoftenremainswellbelowtheearth'ssurface,creatingvastareasofhotrock.Insuchregions,therearedeepcracks,whichallowrainwatertodescendunderground.Someoftheheatedrainwatertravelsbackuptotheearth'ssurfacewhereitwillappearasahotspring.However,ifthisascendinghotwaterreachesalayerofimpermeablerock,itremainstrapped,formingageothermalreservoir.Ifgeothermalreservoirsarecloseenoughtothesurface,theycanbereachedbydrillingwells.Hotwaterandsteamshootupthewellsnaturally,andcanbeusedtoproduceelectricityingeothermalpowerplants.2Afewgeothermalpowerplantsdependondry-stemreservoirswhichproducesteambutlittleor.nowater.Inthesecases,thesteamispipedupdirectlytoprovidethepowertospinaturbinegenerator.Thefirstgeothermalpowerplant,constructedatLardarelloinItaly,wasofthistype,andisstillproducingelectricitytoday.3Mostcurrentlyoperatinggeothermalpowerplantsareeitherflashsteamplantsorbinaryplants.Flashplantsproducemainlyhotwaterrangingintemperaturefrom300to700Fahrenheit.Thiswaterispassedthroughoneortwoseparatorswherereleasedfromthepressureoftheundergroundreservoir,itflashesorboilsintosteamAgain,theforceofthissteamprovidestheenergytospintheturbineandproduceelectricity.Thegeothermalwaterandsteamareth