英语六级模拟试卷七及答案详解

PartIDirections:Supposeyouareaskedtogiveadviceonwhetherstudentsshouldtakeayearoffbeforeenteringcollegeorgodirectlyintocollege.Writeanessaytostateyouropinion.Youshouldwriteatleast150wordsbutnomorethan200words.SectionADirections:Inthissection,youwillhearthreenewsreports.Attheendofeachnewsreport,youwillheartwoorthreequestions.Boththenewsreportandthequestionswillbespokenonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C)andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Questions1to4arebasedontheconversationyouhavejustheard.1.A)Thewomanisaprofessor.B)ThewomanistheDean’sassistant.C)Themanisaseniorstudent.D)Themanisinbigtrouble.2.A)Hisqualificationforgraduation.B)Theoldcurriculumrequirements.C)Hiscreditsofoptionalcourses.D)Thereasonforchangingthecurriculum.3.A)Ithasnothingtodowiththeman’smajor.B)Itisworthwhiletotakethecourse.C)Itistoodifficultforthemantopass.D)Itisanewcourseaddedtothecurriculum.4.A)Askforprofessionaladvicefromhisseminar.B)Takeoneortwoseminarsbeforegraduation.C)Turntohisteacherforfillinginstruction.D)TalktosomeonefromtheDean’soffice.Questions5to8arebasedontheconversationyouhavejustheard.5.A)Theweatherconditionofanairport.C)Theefficiencyofanairporttower.B)Theflowcontrolofanairport.D)Thenumberofplanesatanairport.6.A)Hemightnotusethefree-tripvoucherduringthenextflight.B)Hemightnotgetthecashtheairlinepromisedtopay.C)Hemightnotgetonboardevenwithconfirmedreservation.D)Hemightnotbeguaranteedaseatonthenextflightinadvance.7.A)Becauseairline’scomputersystemssellticketsrandomly.B)Becauseairlineclerkspromotelesspopularflights.C)Becausepeopleareencouragedbytheirfellows.D)Becausepeopleareattractedbythelowerprice.8.A)Choosebigairports.B)Donottakeluggage.C)Carrynomorethantwobags.D)Takeonlycarry-onluggage.SectionBDirections：Inthissection,youwillheartwolongconversations.Attheendofeachconversation,youwillhearfourquestions.Boththeconversationandthequestionswillbespokenonlyonce.Afteryouhearaquestion,you mustchoosethebestanswerfromthefourchoicesmarkedA),B),C),andD).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Questions9to11arebasedonthepassageyouhavejustheard.9.A)Itadvocatestillingthefieldsbeforeplanting.B)Itisalong-heldfarmingpractice.C)Itiseconomical.D)Itrequireslessmanpower.10.A)Theyperfectlygowiththelawofnature.B)Theypromoteplantingthesamecropeveryyear.C)Theycanmakethesoilbecomedamaged.D)Theycankeepthesoilfullofnutrition.11.A)Itisnotmeanttobeharvested.B)Itneedslittlefertilizer.C)Itcankeepthemaincropwarm.D)Itcanbeharvestedinoff-season.Questions12to15arebasedonthepassageyouhavejustheard.12.A)Asecondortwoatmost.B)Twosecondsorthreeatmost.C)Foursecondsatmost.D)Eightsecondsatmost.13.A)Englishmenbegantofeelunsettledwhenasilenceintalkstretchedto8.2seconds.B)Englishmenbegantofeelunsettledwhenasilenceintalkstretchedto4seconds.C)Japanesepeoplecanbearthelongestsilenceintalkintheworld.D)Japanesepeoplecannotbearlongsilencesinbusinessconferences.14.A)ColonialAmericanswasaplaceofdifferentpeoplesinhistory.B)Americansareeagertobuildmutualunderstandingquickly.C)ColonialAmericansneededtoclearthedifferencesamongthem.D)Americanslackthepatiencetowaitforotherstoponder.15.A)Withpeopleyouhavenotmetbefore.B)Withpeoplehavingthesameculturebackground.C)Withpeoplehavingthesameinterest.D)Withpeopleyouarefamiliarwith.SectionCDirections:Inthissection,youwillhearthreerecordingsoflecturesorfollowedbythreeorfourquestions.Therecordingswillbeplayedonlyonce.Afteryouhearaquestion,youmustchoosethebestanswerfromthefourchoicesmarkedA),B),C),D).ThenmarkthecorrespondingletteronAnswerSheet1withasinglelinethroughthecentre.Questions16to18arebasedontherecordingyouhavejustheard.16.A)Theyarethesmallestsatellites.B)Theyaremadebycollegestudents.C)Theyarepoweredbywater.D)TheyarebackedbyNASA.17.A)FromaformerCornellUniversityprofessor.B)Fromascienceprogramontelevision.C)FromacompetitionheldbyCornellUniversity.D)FromaformerNASA’schieftechnologist.18.A)Usingpicturesofthesun,Earthandthemoontocomparetheirpositionsandsize.B)UsingaspecialGPSsystemtofixthespacecraft’spositioninthespace.C)Usingthemoon,sunandstarstofixthespacecraft’spositioninthespace.D)Usingremoteoperationsystemtodirectthespacecrafttomoveintherightdirection.Questions19to22arebasedontherecordingyouhavejustheard.19.A)Healthyeating.B)Diet-relateddiseases.C)Eatingdisorders.D)Food-heathrelationship.20.A)Itiscausingmoredeathsaroundtheworldthantobacco.B)Itismoreprominentindevelopingcountries.C)Itincludestwokindsofdisease:heartdiseaseandtype1diabetes.D)Itcanbecurednowbysomespecificmedicine.21.A)Theyaretargetingatyoungpeople.C)Theycancuresomeskinproblems.B)Theycanleadtoeatingdisorders.D)Theyarepersuasivetoolderpeople.22.A)Patientsshouldnotabandonusingdrugs.C)Moraleandheathareconnected.B)Patientsshouldeatlightfood.D)Foodandhealthareconnected.Questions23to25arebasedontherecordingyouhavejustheard.23.A)SomeofthemarelivinginthewildinHawaii.B)Noneofthemliveinthewild.C)Theyarethemostvaluablespeciesofcrows.D)Theyliveindeepholesontherock.24.A)Theyusetheirnailsastools.C)Theyareborntousetools.B)Theyusetheirtonguesastools.D)Theyaretrainedtousetools.25.A)Theycanusetheirclawsastools.C)Theirclawsarelikehumanthumbs.B)Theyhavestraightbeaks.D)Theirbeaksareshortbuthard.SectionADirections:Inthissection,thereisapassagewithtenblanks.Youarerequiredtoselectonewordforeachblankfromalistofchoicesgiveninawordbankfollowingthepassage.Readthepassagethroughcarefullybeforemakingyourchoices.Eachchoiceinthebankisidentifiedbyaletter.PleasemarkthecorrespondingletterforeachitemonAnswerSheet2withasinglelinethroughthecentre.Youmaynotuseanyofthewordsinthebankmorethanonce.Questions26to35arebasedonthefollowingpassage.AnewstudyfromresearchersinEuropeclaimsthattheaverageIQinWesternnationsdroppedbyastaggering14.1pointsoverthepastcentury.“Wetestedthe__26__thattheVictorianswereclevererthanmodernpopulationsusinghigh-qualityinstruments,namelymeasuresofsimplevisualreactiontimeinameta-analyticstudy,”theresearcherswroteinthestudy,whichwaspublishedonlineinthejournalIntelligenceonThursday.“Simplereactiontimemeasurescorredlate__27__withmeasuresofgeneralintelligenceandareconsideredelementarymeasuresof__28__.”Theresultsmightsurprisesome.Especiallyiftheresearchersweresimplymeasuringvisualresponsetimes.Afterall,inadigitalworldconstantly__29__forourattention,itwouldseempeoplegenerallyrespondmorequicklytovisualstimuli.However,theresultsappeartoindicatesomethingdifferent.TheVictorianeraranroughlyfrom1837to1901,__30__withthereignofEngland’sQueenVictoria.SomehavecreditedtheReformActof1832withsparkinganeraofpreviously__31__peaceandprosperityintheU.K.Theresultsweremeasuredusingdatafrom1889to2004andwereanalyzedbyMichaelA.WoodleyinBrussels.Sowhyhastherebeensucha__32__drop?AsUPInotes,previousresearchstudieshavefoundthatwomenofhigherintelligencetendtohavefewerchildrenonaverage,meaningthatpopulationgrowthmaybedrivenbythosewithalowerIQ.Andovertime,theabundanceoflessintelligent__33__wouldaffecttheoverallIQaverage.Onaverage,thegeneralintelligenceofthosepopulationsmeasured__34__by1.23pointsperdecade.“Thesefindingsstronglyindicatethatwith__35__togeneralintelligencetheVictoriansweresubstantiallyclevererthanmodernWesternpopulations,”thestudysays.A)aspectI)insignificantlyB)climbedJ)offspringC)cognitionK)respectD)coincidingL)sharpE)competingM)steadyF)completingN)substantiallyG)droppedH)hypothesisO)unprecedentedSectionBDirections:Inthissection,youaregoingtoreadapassagewithtenstatementsattachedtoit.Eachstatementcontainsinformationgiveninoneoftheparagraphs.Identifytheparagraphfromwhichtheinformationisderived.Youmaychooseaparagraphmorethanonce.Eachparagraphismarkedwithaletter.AnswerthequestionsbymarkingthecorrespondingletteronAnswerSheet2.AtomicPowersStationsoutatSeaMayBeBetterthanInlandOnes[A]AftertheeventsofMarch11th2011,whenanearthquakeandtsunamiledtoameltdownofthreenuclearreactorsattheFukushimaDai-ichipowerplantinJapan,youmightbeforgivenforconcludingthatatomicpowerandseawaterdon’tmix.Manyengineers,though,donotagree.Theywouldliketoseemoreseawaterinvolved,notless.Infact,theyhaveplanstositenuclearpowerplantsintheoceanratherfloatingonthesurfaceormooredbeneathit.[B]Atfirst,thissoundsamadidea.Itisnot.Land-basedpowerstationsarebespoke(定制的)structures,builtbythetechniquesofcivilengineering,inwhicheachisslightlydifferentandteamsofspecialistscomeandgoaccordingtothephaseoftheproject.Marinestations,bycontrast,couldbemass-producedinfactoriesusing,ifnotthetechniquesoftheassemblyline,thenatleastthoseoftheshipyard,withcrewsconstantlyemployed.[C]ThatwouldmakepowerstationsatseacheaperthanthoseonlandJacopoBuongiorno,anuclearengineerattheMassachusettsInstituteofTechnology,reckonsthat,whenallisdoneanddusted,electricityfromamarinestationwouldcostatleastathirdlessthanthatfromaterrestrialequivalent.Itwouldalsomakethemsafer.Areactoranchoredontheseabedwouldneverlackemergencycooling,theproblemthatcausedtheFukushimameltdown.Norwouldtobeprotectedagainsttheriskofterroristsflyinganaircraftintoit.Itwouldbetsunami-proof,too.Thoughtsunamisbecomegreatanddestructivewaveswhentheyarriveinshallowbetsunami-proof,too.Thoughtsunamisbecomegreatanddestructivewaveswhentheyarriveinshallowwater,intheopenoceantheyaremereripples.Indeed,wereitdeepenough(100metresorso),suchasubmarinereactorwouldnotevenbeaffectedbypassingstorms.[D]Allthesereasons,observesJacquesChenais,anengineeratFrance’sAtomic-Energycommission,CEA,makeunderwaternuclearpowerstationsanideaworthinvestigating.Dr.ChenaisisheadofsmallreactorsatCEA,andhashadexperiencewithonewell-establishedtypeofunderwaterreactor—thatpowerssubmarines.HeandhisteamarenowassistingNavalGroup,aFrenchmilitarycontractor,todesignreactorsthatwillstayputinsteadofmovingaroundonaboat.Theplanistoencase(把……围住)areactorandanelectricity-generatingsteamturbineinasteelcylinderthelengthofafootballpitchandwithaweightofaround12,000tonnes.[E]Thewholesystem,dubbedFlexblue,wouldbeanchoredtotheseabedbetweenfiveand15kmfromthecoast—farenoughforsafetyincaseofanemergency,butnearenoughtobeservicedeasily.Theelectricitygenerated(upto250megawatts,enoughfor1mpeople)wouldbetransmittedashorebyanunderseacable.Forrefuelingandmaintenanceunmanageablefromasubmarine,thecylinderwouldbefloatedtothesurfacewithairinjectedintoitsballasttanks.And,whenastationcametotheendofitsusefullife,itcouldbetowedtoaspecialistfacilitytobedismantledsafely,ratherthanrequiringyetanotherlotofcivilengineerstodemolishit.[F]NavalGrouphasnot,asyet,attractedanycustomersforitsdesigns.Butaslightlylessambitiousapproachtomarinereactors—anchoringthemonthesurfaceratherthanbelowit—isabouttocometofruition(实现)inRussia.Thefirstsuch,AkademikLomonosov,isunderconstructionattheBalticShipyard,inSt.Petersburg.AccordingtoAndreyBukhovtsevofRosatom,theagencythatrunsRussia’scivilnuclearprogram,itis96%complete.Itwillbelaunchedlaterthisyear,towedtoMurmansk,andthencetransportedtoPevek,aportinRussia’sFarEast,whereitwillbegingeneratingpowerin2019.[G]AkademikLomonosovconsistsoftwo35MWreactorsmountedonabarge.ThereactorsaremodifiedversionsofthoseusedtopowerTaymyr-classicebreakers.Assuch,theyaredesignedtobeabletotakequiteabattering,sothestormsoftheArcticOceanshouldnottroublethem.Toaddtotheirsafety,thebargebearingthemwillbemoored,about200metrsfromshore,behindastorm-and-tsunami-resistantbreakwater.[H]Altogether,AkademikLomonosovwillcost$480mtobuildandinstall—farlessthanwouldhavetobespentconstructinganequivalentpowerstationonlandinsucharemoteandhostileenvironment.And,onthepresumptionthatthewholethingwillwork,plansforasecond,similarplantarebeinglaid.[I]NorisRussiaaloneinplanningfloatingreactors.Chinahassimilarambitions.Specifically,theChinesegovernmentintends,duringthe2020s,tobuildupto20floatingnuclearplants,withreactorsaspowerfulas200MW,tosupplyartificialislandsitisbuildingaspartofitsplantoenforcethecountry’sclaimtomuchoftheSouthChinaSea.[J]Thefirmsinvolvedinthisprojectintendtotsunami-proofsomeoftheirreactorsinthesamewayastheFrench,bystationingtheminwatertoodeepformassivetsunamiwavestoform.Becausetheyareatthesurface,though,thatwillnotsavethemfromstorms—andlocatingthemfarfromshoremeanstheRussianapproachofbuildingshelteringbreakwaterswillnotworkeither.Thatmatters.TyphoonsintheSouthChinaSeacanwhipupwaveswithanamplitudeenceeding20metres.[K]Towithstandsuchstorms,thebargeswillhaveanchorsthatareattachedtoswiveling“mooringturrets”undertheirbows.Thesewillcauseabargetobehavelikeaweathervane,alwayspointingintothewind.Sincethatisthedirectionwavescomefrom,itwillremainbow-ontothosewaves,givingitthebestchanceofridingoutanystormthatnaturecarestothrowatit.Thebarges’bowswillalsobebuilthigh,inordertocutthroughwaves.Thisway,claimsMarkTippingofLloyd’sRegister,aBritishfirmthatisadvisingontheplants’design,theywillbeabletosurvivea“10,000-yearstorm.”[L]TheSouthChinaSeaisalsoabusyareaforshipping,soanyfloatingpowerstationstherewillneedtobeabletowithstandadirecthitbyaheavy-ladencargovesseltravellingataspeedof,say,20knots—whetherthatcollisionbeaccidentalortheresultofhostileaction.Onewaytodothis,saysChenHaibo,anavalarchitectworkingontheproblematLloyd’sRegister’sBeijingoffice,istofitthebargeswithcrumplezonespackedwithmaterialssuchascorrugatedsteelandwood.[M]Noteveryoneisdelightedwiththeideaofmarinenuclearpower.RashidAlimov,headofenergyprojectsatGreenpeaceRussia,anenvironmentalcharity,arguesthatoffshoreplantscouldbeboardedbypiratesorterrorists,bestruckbyanicebergormightevadesafetyrulesthatarehardtoenforceatsea.OnJuly21stGreenpeacescoredavictorywhenRosatomsaidthatAkademikLomonosov’snuclearfuelwouldbeloadedinanunpopulatedareaawayfromSt.Petersburg.[N]That,though,isapinprick(小范围).ThefutureofmarinenuclearpowerstationsismorelikelytodependonthefutureofnuclearpoweritselfthanontheactionsofpressuregroupssuchasGreenpeace.If,asmanywhoworryabouttheclimate-changingpotentialoffossil-fuelpowerstationsthink,uraniumhasanimportantparttoplayingeneratingelectricityovercomingdecades,thenmanynewnuclearplantswillbeneeded.Andifthatdoesturnouttobethecase,sitingsuchplantsoutatseamaywellproveagoodidea.36.Comparedwiththeatomicpowerstationsatsea,inlandonescostmuchmore.37.BuildingfloatingpowerstationsintheSouthChinaSeamusttakeintoconsiderationthebusyshippingthere.38.Thedemolitionofanexhaustedinlandstationstillneedsnumbersofexperts. 39.Oneofthediscrepanciesbetweenmarinepowerstationsandland-basedpowerstationsisthattheformercouldbemass-produced.40.ConstructingmarinereactorsonthesurfaceofthewaterinRussiaistobecompletelaterthisyear.41.Marinereactorsatthesurfacecannotkeepthemfromthestormliketyphoons.42.SomeGreenpeaceorganizationsareagainsttheconstructionofmarinenuclearpowerstationsandwonsuccesstosomedegree.43.AkademikLomonosovwillcost,intotal,alotlessthansimilarpowerstationsonland.44.Dr.Chenaishasparticipatedintheconstructionofunderwaterreactorthatprovidesenergyforsubmarines.45.ChinaisplanningtoconstructtwentyfloatingnuclearplantsintheSouthChinaSea.SectionCDirections:Thereare2passagesinthissection.Eachpassageisfollowedbysomequestionsorunfinishedstatements.ForeachofthemtherearefourchoicesmarkedA),B),C)andD).YoushoulddecideonthebestchoiceandmarkthecorrespondingletteronAnswerSheet2withasinglelinethroughthecentre.PassageOneQuestions46to50arebasedonthefollowingpassage.AmazonsaiditwillcutpricesonarangeofpopulargoodsasitcompletesitsacquisitionofWholeFoods,sendingsharesofrivalgrocerstumbling(跌倒，暴跌)onfearsthatbrutalmarketsharebattleswillintensify.Amazon’s$13.7billionpurchaseofWholeFoods,whichwillbecompletedonMonday,hasbeenhangingoverabrick-and-mortar(有实体的)retailsectorunsureofhowtorespondtotheworld’sbiggestonlineretailer.SharesofKroger,thebiggestUnitedStatessupermarketoperator,closeddown8percent,whileWal-Mart,thebiggestUSfoodseller,closeddown2percent.AmazonsaiditwillstartsellingWholeFoodsbrandproductsonitswebsite,amovethatsentdownsharesofpackagedfoodsellers,includingKellogg.Amazonalsosaidmembersofits$99-per-yearPrimeshoppingclubwouldeventuallyberolledintoWholeFoods’customerrewardsprogramandbeeligibleforspecialoffersanddiscounts.“TherewasneveranydoubtthatAmazonwouldlowerprices,andevenofferfurtherdiscountsin-storetoPrimemembers,”saidBairdEquityResearchanalystColinSebastian.StartingonMonday,Amazonwillcutpricesonorganicgrocerystaplessuchasbananas,avocados,browneggsfarmedsalmonandtilapia,babykaleandlettuce,someapples,butter,andotherproducts.Loweringpricescouldstemdefectionsbyprice-sensitiveWholeFoodsshoppersandhelpthegrocershedits“WholePaycheck”reputationforhighpricesthataregenerally15to25percentaboverivals.Itcouldalsobringinnewconsumerswhocanthenbeurgedtoshopforfoodandotherproductsonline.TheplannedpricecutswouldhavebeenatoughselltoWholeFoods’investors,whohadgrownusedtofatprofitsfromtheupscalechain,butaremoreinlinewithAmazon’sbroaderstrategyofsacrificingshort-termprofitforlong-termmarketdominance.Amazon’swillingnesstotakelowerprofitmarginsupstheante(赌注)intheincreasinglycostlygrocerypricewar.AddingWholeFoodsbenefitsshouldhelpAmazonattractmoreshopperstoitssuccessfulPrimeshceme,whichfeaturestwo-dayshippingforeligiblepurchasesandunlimitedstreamingofmoviesandTVshows.Amazonhasmorethan60millionPrimemembers,accordingtoanalystestimates.WholeFoodshasrolledoutaloyaltyprogramatitssmaller,lower-priced365byWholeFoodschain,whichoffersmembers10oercentoffmorethan100itemsinthestores.TheprogramisstillbeingtestedinthemainWholeFoodschain.Beyondthat,someWholeFoodsstoreswillgetAmazonLockers,wherecustomerscanreceiveonlineordersandmakereturns.JohnMackeywillremainchiefexecutiveofWholeFoodsandthecompanywilloperateasasucsidiaryandcontinuetobeheadquarteredinAustin,Texas,thecompaniessaidonThursday.46.Whatcanwelearnabout“WholeFoods”?A)ItispurchasedbyAmazonatahighprice.B)Itthreatenstheprofitsofthephysicalstores.C)Itmainlysellshigh-qualityproductsonline.D)Itisoneofthebiggestpackagedfoodsellers.47.WhatmaybetheimpactofthepricecuttingpolicyofAmazon?A)Causingdefectionsofshoppers.B)Startinganewroundofpricewars.C)IncreasingAmazon’sannualsales.D)Attractingmoretargetcustomers.48.Inthepassage,“atoughsell”(Line1,Para.5)isclosestinmeaningto.A)impossibletoprofitB)eagertoselloutC)reluctanttoinvestD)hardtoaccept49.Exceptforcuttingprices,whatelsemarketingprogramwillAmazonintroduce?A)Seasonaldiscounts.B)Well-roundedmemberbenefits.C)Improvedcustomerservices.D)Shorterperiodofshipping.50.Whatisthepassagemainlyabout?A)Thefiercemarketbattlesinfoodsalesindustry.B)Marketreactiontothemergeofonlinesellers.C)TheacquisitionandreformofWholeFoods.D)MarketprospectafterAmazon’sacquisition.PassageTwoQuestions51to55arebasedonthefollowingpassage.The17trillionUSgallonsofrain,roughly26mOlympicswimmingpools,dumpedonTexasbyHurricaneHarveyhassetanewhighforatropicalsystemintheUS,butitisunlikelytolastlongasrisingman-madeemissionspushglobalclimatedeeperintounchartedterritory.ImagesoffloodedstreetsinTexasaremirroredbyscenesofinundated(洪泛的)communitiesinIndiaandBangladesh,therecentmudslidesinSierraLeoneandlastmonth’sdeadlyoverflowofaYangtzetributary(支流)inChina.Inpart,thesecalamitiesareseasonal.Inpart,theimpactdependsonlocalfactors.Butscientiststellussuchextremesarelikelytobecomemorecommonandmoredevastatingasaresultofrisingglobaltemperaturesandincreasinglyintenserainfall.Ourplanetisinaneraofunwelcomerecords.Foreachofthepastthreeyears,temperatureshavehitpeaksnotseensincethebirthofmeteorology(气象学),andprobablynotformorethan110,000years.Theamountofcarbondioxideintheairisatitshighestlevelin4myears.ThisdoesnotcausestormslikeHarvey—therehavealwaysbeenstormsandhurricanesatthistimeofyearalongtheGulfofMexico—butitmakesthemwetterandmorepowerful.“ForlargecountriesliketheUnitedStates,wecanexpectfurtherrainfallrecords—andnotjustforhurricanes,”saidFriederikeOtto,deputydirectoroftheEnvironmentalChangeInstituteattheUniversityofOxford.Thisispartofawidertrend.“Fortheglobe,we’llseeheatandextremerainfallrecordsfallfortheforeseeablefuture,”shepredicted.Shecautionedthatthesituationislikelytobedifferentfromcountrytocountry.Manyfactorsareinvolved,buthumanimpactontheclimatehasaddedtothetendencyformoreseveredroughtsandfiercerstorms.Akeyfocusnowiswhetherclimatechangeisconnectedtothe“stalling”ofstorms.IntheUS,hurricanesusuallymoveinlandanddiminishinpowerastheygetfurtherfromthesea.Harvey,however,wasstationaryforseveraldays—whichisthemainfactorinitsrainfallrecord.ScientistshavesaidthismaybethesinglebiggestquestionposedbyHarvey.Researchershaverecentlyidentifiedaslowdownofatmosphericsummercirculationinthemid-latitudesasaresultofstrongwarmingintheArctic.Butsuchstudiesofpressurepatternsneedmorepowerfulanalyticaltools,includingsupercomputers. IntheUS,however,suchresearchhasbecomehighlypoliticized.PresidentDonaldTrumphasannouncedthattheUSwillpulloutoftheParisclimatetreatyandcutfundingforrelatedresearch.“Itshouldn’tbeapoliticalmattertotrytounderstandhowmuchmorefrequenteventslikeHarveywillbecomeinthefuture,”saidTimPalmer,aprofessorattheUniversityofOxford.“Itappallsmehowbasicsciencehasbecomeinvolvedinpoliticslikethis.‘51.WhatcanwelearnaboutHurricaneHarvey?A)Itdestroyedabout26mOlympicswimmingpools.B)Itbroughtarecord-breakingamountofrainfall.C)Itwassoonputtoanendbyclimatechange.D)ItalsobroughtunprecedenteddisasterstoAsia.52.ThedisastersmentionedinPara.2serveasexamplestoshowthat.A)disastersindifferentareassharehighsimilarityB)mostoftheworldwidecalamitiesareseasonalC)extremeweathersarebecomingmorecommonD)risingtemperaturescausemoreintenserainfall53.WhichofthefollowingstatementsmayOttoagreewith?A)Stormsandhurricaneshavebeengettingstrongerandwetter.B)Moreextremetemperaturesandrainfallmaycomeinfuture.C)Itisnotclearwhatfactorsmaybeinvolvedinclimatechange.D)HurricanesintheUStendtocomeintobeingininlandareas.54.Itissuggestedthattherootcauseofthe“stalling”ofstormsmightbe.A)variedpressurepatternsB)warmeroceancurrentsC)improperhumanactivitiesD)sloweratmosphericcirculation55.Whatisthescientificcommunity’sresponsetoPresidentTrump’sannouncement?A)Quitecritical.C)Ratherindifferent.B)Prettyfavorable.D)SlightlySkeptical.Directions:Forthispart,youareallowed30minutestotranslateapassagefromChineseintoEnglish.Youshouldwr