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{{*HTML*}}{{B}}第二篇{{/B}} {{B}}??????? ?????WhereHaveAlltheFrogsGone?{{/B}}? ?Inthe1980sscientistsaroundtheworldbegantonoticesomething strange:Frogsweredisappearing.Morerecentresearchhasshownthatmanykinds ofamphibians两栖动物aredecliningorhavebecomeextinct.Theyhavebeenaround foralongtime-over350millionyears.Whyaretheydyingoutnow?? ?Scientistsareseriouslyconcernedaboutthisquestion.Firstofall amphibiansareanimportantsourceofscientificandmedicalknowledge.By studyingamphibiansscientistshavelearnedaboutnewsubstancesthatcouldbe veryusefulfortreatinghumandiseases.Furtherresearchcouldleadtomany morediscoveriesbutthatwillbeimpossibleiftheamphibians disappear.??Themostseriousaspectofamphibianlosshowever goesbeyondtheamphibiansthemselves.Scientistsarebeginningtothinkabout whatamphibiandeclinemeansfortheplanetasawhole.Iftheearthisbecoming unlivableforamphibiansisitalsobecomingunlivableforotherkindsof animalsandhumanbeingsaswell???Scientistsnowbelievethat amphibiandeclineisduetoseveralenvironmentalfactors.Oneofthesefactors isthedestructionofhabitatthenaturalareawhereananimallives. Amphibiansareverysensitivetochangesintheirhabitat.Iftheycannotfind therightconditionstheywillnotlaytheireggs.Thesedaysaswildareas arecoveredwithhousesroadsfarmsorfactoriesmanykindsofamphibians arenolongerlayingeggs.Forexamplethearroyotoad蟾蜍ofsouthern Californiawillonlylayitseggsonthesandybottomofaslow-movingstream. ThereareveryfewstreamsleftinsouthernCaliforniaandthosestreamsare oftenmuddybecauseofbuildingprojects.Notsurprisinglythearroyotoadis nowindangerofextinction.??Thereareanumberofotherfactors inamphibiandecline.Pollutionisoneofthem.Inmanyindustrialareasair pollutionhaspoisonedtherainwhichthenfallsonpondsandkillsthefrogs andtoadsthatlivethere.Infarmingareastheheavyuseofchemicalsoncrops hasalsokilledoffamphibians.Anotherfactoristhatairpollutionhasledto increasedlevelsofultravioletUVlight.Thisendangersamphibianswhich seemtobeespeciallysensitivetoUVlight.Andfinallyscientistshave discoveredanewdiseasethatseemstobekillingmanyspeciesofamphibiansin differentpartsoftheworld.??Allthesereasonsforthe disappearanceofamphibiansarealsogoodreasonsformoregeneralconcern.The destructionoflandthepollutionoftheairandthewaterthechangesinour atmospherethespreadofdiseases-thesefactorsaffecthumanbeingstoo. Amphibiansareespeciallysensitivetoenvironmentalchange.Perhapstheyare likethecanary金丝雀birdthatcoalminersonceusedtotakedownintothe minestodetectpoisonousgases.Whenthecanarybecameiiiordiedtheminers knewthatdangerousgaseswerenearandtheirownliveswerein danger.Coalminersonceusedthecanarybirdtodetect
{{*HTML*}}下面的短文有15处空白请根据短文内容为每处空白确定1个最佳选项 ??????? ?????????{{B}}Solar Storm{{/B}}??AttheendofOctober2003asuddensolarstormhit theearth.Asolarstormreferstothelargeamountsofchargedparticles releasedintospace{{U}}?51?{{/U}}thesolarenergyincreases.The releaseoftheenergy{{U}}?52?{{/U}}placealongwiththeactivityof thesunspotswithacycleof11years.Thistimethe{{U}}?53?{{/U}}of thestormexceededexpectations.??This{{U}}?54?{{/U}}of intensesolarstormwascausedbytheeruptionofasolarflare闪光andthe ejection喷发ofthesolarcorona日冠onOctober282003.Largeamountsof chargedparticlesmoved150000000kilometersthroughspacetowardthe {{U}}?55?{{/U}}in19hours.Theycouldaffectaircraftroaming漫游in space.??Thehigh-energyparticleswill{{U}}?56 ?{{/U}}someofthepartsofanaircraft.Theymayalsocauseittofail. High-energyparticlescanthreatenthesafetyofanaircraftatahighorbit.If anaircraftorbitsatalowerorbititis{{U}}?57?{{/U}}becauseitis undertheprotectionoftheearth’smagneticfield.??Asolar stormnotonlyaffectsaircraftbutalsoisa{{U}}?58?{{/U}}tothe environmentandhumans.Theaerosphereandmagneticfieldoftheearthcan {{U}}?59?{{/U}}humansfromultravioletradiationandX-rays.Whilemost oftheX-raysareabsorbedaftertheyentertheaerosphere大气层stillafew can{{U}}?60?{{/U}}theground.??Thegeomagneticstorm causedbythisroundofsolarstormreachesitshighestlevelonthetwo{{U}} ?61?{{/U}}oftheearthwhichaffectselectricitysupplyofNorth America.Overexposureto{{U}}?62?{{/U}}threatensthehealthof passengersonplanesflyingoverthePolarRegions.Ifweflyintheskyduring suchasolarstormit{{U}}?63?{{/U}}wereceivetentimestheX-ray radiation.It’sreallydamaging.??Scientistssayasolareruption islikethesunsneezingwhichwillmaketheearth{{U}}?64?{{/U}}a cold.Thoughthisnaturalforceisirresistiblescientistscanstill {{U}}?65?{{/U}}itsmovementaccuratelybymonitoring.Facingsuccessive solarstormshumanscan’tdroptheirguard.
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{{*HTML*}}{{B}}第二篇{{/B}} {{B}}??????? ?????WhereHaveAlltheFrogsGone?{{/B}}? ?Inthe1980sscientistsaroundtheworldbegantonoticesomething strange:Frogsweredisappearing.Morerecentresearchhasshownthatmanykinds ofamphibians两栖动物aredecliningorhavebecomeextinct.Theyhavebeenaround foralongtime-over350millionyears.Whyaretheydyingoutnow?? ?Scientistsareseriouslyconcernedaboutthisquestion.Firstofall amphibiansareanimportantsourceofscientificandmedicalknowledge.By studyingamphibiansscientistshavelearnedaboutnewsubstancesthatcouldbe veryusefulfortreatinghumandiseases.Furtherresearchcouldleadtomany morediscoveriesbutthatwillbeimpossibleiftheamphibians disappear.??Themostseriousaspectofamphibianlosshowever goesbeyondtheamphibiansthemselves.Scientistsarebeginningtothinkabout whatamphibiandeclinemeansfortheplanetasawhole.Iftheearthisbecoming unlivableforamphibiansisitalsobecomingunlivableforotherkindsof animalsandhumanbeingsaswell???Scientistsnowbelievethat amphibiandeclineisduetoseveralenvironmentalfactors.Oneofthesefactors isthedestructionofhabitatthenaturalareawhereananimallives. Amphibiansareverysensitivetochangesintheirhabitat.Iftheycannotfind therightconditionstheywillnotlaytheireggs.Thesedaysaswildareas arecoveredwithhousesroadsfarmsorfactoriesmanykindsofamphibians arenolongerlayingeggs.Forexamplethearroyotoad蟾蜍ofsouthern Californiawillonlylayitseggsonthesandybottomofaslow-movingstream. ThereareveryfewstreamsleftinsouthernCaliforniaandthosestreamsare oftenmuddybecauseofbuildingprojects.Notsurprisinglythearroyotoadis nowindangerofextinction.??Thereareanumberofotherfactors inamphibiandecline.Pollutionisoneofthem.Inmanyindustrialareasair pollutionhaspoisonedtherainwhichthenfallsonpondsandkillsthefrogs andtoadsthatlivethere.Infarmingareastheheavyuseofchemicalsoncrops hasalsokilledoffamphibians.Anotherfactoristhatairpollutionhasledto increasedlevelsofultravioletUVlight.Thisendangersamphibianswhich seemtobeespeciallysensitivetoUVlight.Andfinallyscientistshave discoveredanewdiseasethatseemstobekillingmanyspeciesofamphibiansin differentpartsoftheworld.??Allthesereasonsforthe disappearanceofamphibiansarealsogoodreasonsformoregeneralconcern.The destructionoflandthepollutionoftheairandthewaterthechangesinour atmospherethespreadofdiseases-thesefactorsaffecthumanbeingstoo. Amphibiansareespeciallysensitivetoenvironmentalchange.Perhapstheyare likethecanary金丝雀birdthatcoalminersonceusedtotakedownintothe minestodetectpoisonousgases.Whenthecanarybecameiiiordiedtheminers knewthatdangerousgaseswerenearandtheirownliveswerein danger.Amphibianslaytheireggs
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{{*HTML*}}? ?下面的短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选择1个最佳标题2第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项 ??????????{{B}}The ScienceofSport{{/B}}1?Atthe2004OlympicGamesinAthenstheChinese athleteLiuXiangequaledtheworldrecordforthe110metreshurdles跨栏when herantheracein12.91seconds.Thisrecordtimehadbeensetin1993by Britishsprinter短跑运动员ColinJacksonand9yearswentbybeforeanother athletewasabletorunasfast.2?Record-breakinginalltrackevents isslowingdownandweappeartobemovingmuchclosertothelimitsofhuman performance.Neverthelesseveryfouryearsrecordswhichwerepreviously thoughttobeunbeatablearebroken.Sowhat’sbehindthisnever-ending improvementinperformance?Andhowlongcanwekeepbreakingrecords?isthere alimittohumanperformanceorwillathletescontinuetogainseconds?3 ?Mostexpertsagreethatitisn’ttheathletes’bodieswhichhavechanged butthehugeadvancesinsportsciencewhichhaveenabledthemtoimprovetheir performances.Theindividualathleteobviouslyhastohavethenecessaryskill anddeterminationtosucceedbutthehelpofscienceandtechnologycanbe significant.Researchhasbroughtabetterunderstandingoftheathlete’sbody andmindbuttheadvancesinsportsequipmenttechnologyhavealsohadan importantimpactonhumanperformance.4?Scientistshaveshownthatan athlete’sbody’sneedsvaryaccordingtothetypeofsport.Thisresearchhas helpedtopsportspeopletoadapttheirtrainingprogrammeanddietbetterto theirparticularneeds.Runningthemarathonandcyclingforexampleare endurance耐力sportsandrequireadifferentparathion硝苯硫磷脂tothatofa 100-metrasprinter.Insomesportschangesintechniqueshavesignificantly improvedperformance.5?Butinanysportaplayer’ssuccessorfailure resultsfromacombinationofbothphysicalandmentalabilities.Mostcoaches usepsychologicaltechniquestohelptheirathletescopewithstressand concentrateontheirperformance.ForexampletheEnglishfootballteamlistens tomusicinthechangingroomsbeforeagametohelptheplayersrelaxandnot feelsonervous.Beforeadifficultmatchtennisplayersareencouragedtouse visualization想象techniquestobuildconfidenceandthisisalmostasgoodas practice.6?Butassciencebeginstodominatesportareweindanger oflosingsightoftheheartofthecompetitionthesportingchallenge?What’s morearealltheseadvantagesfair?Paragraph2______. A?Differentsportsrequiredifferenttrainingprograms. B?Sciencemaybetooimportanttoday. C?Sportsequipmenthasbeenimprovedalot. D?Athletesarestillbreakingrecords. E?Sportsciencehelpsimproveathletes’performances. F?Mentaltrainingisasimportantasphysicaltraining.
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{{*HTML*}}{{B}}第三篇{{/B}} {{B}}?????? ?ControllingRobotswiththeMind{{/B}}??Belleourtiny monkeywasseatedinherspecialchairinsideachamberatourDukeUniversity lab.Herrighthandgraspedajoystick操纵杆asshewatchedahorizontalseries oflightsonadisplaypanel.Sheknewthatifalightsuddenlyshoneandshe movedthejoystickleftorrighttocorrespondtoitspositionshewouldbe sentadropoffruitjuiceintohermouth.??Belleworeacap gluedtoherhead.Underitwerefourplasticconnectorswhichfedarraysof microwires-eachwirefinerthanthefinestsewingthread-intodifferent regionsofBelle’smotorcortex脑皮层thebraintissuethatplansmovementsand sendsinstructions.Eachofthe100microwireslaybesideasinglemotorneuron 神经元.Whenaneuronproducedanelectricaldischargetheadjacentmicrowire wouldcapturethecurrantandsenditupthroughasmallwiringbundlethatran fromBelle’scaptoaboxofelectronicsonatablenexttothebooth.Thebox inturnwaslinkedtotwocomputersonenextdoorandtheotherhalfacountry away.??Aftermonthsofhardworkwewereabouttotesttheidea thatwecouldreliablytranslatetherawelectricalactivityinalivingbeing’s brain-Belle’smerethoughts-intosignalsthatcoulddirecttheactionsofa robot.WehadassembledamultijointedrobotarminthisroomawayfromBelle’s viewwhichshewouldcontrolforthefirsttime.AssoonasBelle’sbrain sensedalitspotonthepanelelectronicsintheboxrunningtworeal-time mathematicalmodelswouldrapidlyanalyzethetinyactionpotentialsproducedby herbraincells.Ourlabcomputerwouldconverttheelectricalpatternsinto instructionsthatwoulddirecttherobotarm.Sixhundredmilesnorthin CambridgeMassadifferentcomputerwouldproducethesameactionsinanother robotarmbuiltbyMandayamA.Srinivasan.Ifwehaddoneeverythingcorrectly thetworobotarmswouldbehaveasBelle’sarmdidatexactlythesame time.??Finallythemomentcame.Werandomlyswitchedonlightsin frontofBelleandsheimmediatelymovedherjoystickbackandforthto correspondtothem.OurrobotarmmovedsimilarlytoBelle’srealarm.Sodid Srinivasan’s.Belleandtherobotsmovedinsynchrony同步likedancers choreographed设计舞蹈动作bytheelectricalimpulsessparkinginBelle’s mind.??Inthetwoyearssincethatdayourlabsandseveral othershaveadvancedneurosciencecomputerscienceandmicroelectronicsto createwaysforratsmonkeysandeventuallyhumanstocontrolmechanicaland electronicmachinespurelybythinkingthroughorimaginingthemotions.Our immediategoalistohelpapersonwhohasbeenunabletomovebyaneurological 神经的disorderorspinalcord脊髓injurybutwhosemotorcortexissparedto operateawheelchairoraroboticlimb.WhichofthefollowingisNOTtrueoftherobotbuiltbySrinivasan?
{{*HTML*}}? ?下面的短文后列出了7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文中没有提及请选择C ??????? ???????{{B}}Monarchwithouta Kingdom{{/B}}??ThisNovemberahundredmillionbutterflieswill dropfromtheskyoverMexicolikeautumnleaves.Butforhowlong?Genetically modifiedmaize玉米couldmeanextinctionforthisbeautifulbutterflyRafael Ruizreports.??Althoughitsbodyisabout3cmlonganditonly weighs1gmtheMonarchbutterflymanagestotravel5000kmeachyear.It seemstobesofragilebutitslongjourneysareproofofitsamazingability tosurvive.ThisautumntheMonarchbutterflywilloncemoresetoutonits journeyfromtheUS.ItwillkeepgoinguntilitreachesMexico.Ittravels thesehugedistancestoescapethecoldweatherinthenorth.??In NovembermillionsofMonarchsfalllikebrightgoldenrainontotheforestsin themountainsofcentralMexico.Inthesilenceofthesemountainsyoucanhear astrangeflapping拍动ofwingsastheMonarchsarriveattheirdestination. Inthemountainswhichreachaheightof3000metresthebutterfliesare safe.??Beforereachingtheirjourney’sendtheyhavefacedstrong windsrain.andsnowstormsandtheydonotallmanagetoreachtheir destination.Whenthewintersarereallybadperhaps70percentofthemwill notsurvive.TheirlongjourneytoMexicoisthoughttobeoneofthemost amazingeventsinthewholeoftheAmericancontinent.Whentheygettherethey willstayuntilthebeginningofAprilwhentheirinternalcalendartellsthem thatitistimetogoback.Thelongjourneywithallitsdangersbegins again.??Thesedelicatecreaturesnowfacedangerofanotherkind -fromscientificprogress.IntheUSmillionsoffarmsgrowgenetically modifiedmaizewhichispurepoisonforthebutterfly.Laboratoryexperiments haveshownthathalfofthebutterflieswhichfeedontheleavesofgenetically modifiedmaizediewithin48hours.Notallexpertsagreethatthisvarietyof maizeisresponsibleforthethreattotheMonarchs.Inspiteofthesedoubts theEuropeanUnionhasrefusedtoapprovenewcropsofgeneticallymodified maizeuntilfurtherinvestigationshavebeencarriedout.? ?GreenpeaceiscampaigningagainstgeneticallymodifiedproductsinSpain therearealready20000hectaresofmodifiedmaize.Theenvironmental organizationrecentlypublishedalistof100speciesofbutterflyinEurope alonewhicharethreatenedwithextinction.Geneticallymodifiedmaizeisn’tpoisonoustothebutterflies.
{{*HTML*}}??下面的短文有5处空白短文后有6个句子其中5个取自短文请根据短文内容将其分别放回原有位置以恢复文章原貌 ?????????? ???{{B}}HowDidSheConquertheAmericans?{{/B}}? ?African-AmericantalkshowqueenOprahWinfreyistheworld’smost powerfulcelebrityaccordingtoForbesmagazine.{{U}}?46 ?{{/U}}.??Winfrey51draws30millionviewersweeklyinthe UnitedStates.Hertalkshowreaches112countries.SheearnedUS＄225million overthepast12monthstoranksecondincelebrityriches.??The annualForbeslistgivesmostweighttoannualearnings.{{U}}?47 ?{{/U}}??After21yearsherexcitingchatshowstillrules theairwaves.Itcreatednewcelebritiesandhundredsofmillionsofdollarsin profitsthemagazinesaid.??Winfreyismostpopularwithher populartalkshowTheOprahWinfreyShow.Shecanalwaysattractthe superstarsandletthemopenuptoherintimateinterviewingstyle.? ?LastmonthAmericanactorTomCruise42surprisedfanswhenhe celebratedhisnewromancewith26-year-oldactressKatieHolmes.Fiejumpedup anddownshoutingI’minlove.OnlyafewyearsagoCruiseandhisex-wife NicoleKidmanappearedseparatelyonthesameshowtellingthenewsoftheir divorce.{{U}}?48?{{/U}}??Winfrey’sapproachappearsto besimple.Sheisinpursuitofself-improvementandself-empowerment自强.This hasprovedtobejustwhatpeopleespeciallywomenwant.? ?Winfreyoftentalksaboutherpersonalsecretsonhershow.Thatpullsin viewers.Forexamplesherevealedthatshehadbeensexuallyabusedasachild andhasspokenfreelyofherstrugglewithherweight.??Winfrey wasborntoapoorfamilyinMississippiin1954.{{U}}?49?{{/U}}Atthe ageof19shebecametheyoungestpersonandthefirstAfrican-Americanwoman toanchor主持anewsprogramme??Hersuccesshasnotjustbeen onthescreen.Hermediagroupincludesawomen’sTVnetworkandwebsitesfor women.??Winfrey’sworkhasextendedtosocialchange.{{U}} ?50?{{/U}}.??ShetestifiedbeforetheUSSenateto establishanationaldatabaseofdangerouschildabusers.PresidentBillClinton latersignedOprahBillintolaw.A?Butitalsolooksatthe celebrity’spresenceontheInternetandinthemedia.B?In1991she didalotofworkfortheNationalChildProtectionAct.C?Shewasnot averysuccessfulwoman.D?Shebeganbroadcastingwhilestillathigh school.E?ItplacedWinfreyatthetopofitsannualrankingofthe100 peoplelastweek.F?Thecouplehadbeentight-lippedabouttheir break-up.
{{*HTML*}}??下面有3篇短文每篇短文后有5道题请根据短文内容为每题确定1个最佳选项{{B}}第一篇{{/B}} {{B}}??????? ??IstheTieaNecessity?{{/B}}??Tiesorneckties havebeenasymbolofpolitenessandeleganceinBritainforcenturies.Butthe casualPrimeMinisterTonyBlairhasproblemswiththem.Reportssuggestthat eventhecivilservantsmaystopwearingties.Soarethefamouslyformal Britishreallygoingtoabandontheneckties???Maybe.Lastweek theUK’sCabinetSecretaryAndrewTurnbullopenlywelcomedatielessera.He hintedthatcivilservantswouldsoonbefreeofthecostliest12inchesof fabricthatmostmeneverbuyintheirlives.??InfactBlair showedthisattitudewhenhehadhisfirstgueststoacocktailparty.Manyof themwerecelebrities知名人士withouttieswhichwouldhavebeenunimaginable evenintherecentpast.??ForsomemoreconservativeBritishthe tieisamustforproperappearance.EarlierLaborleaderJimCallaghansaidhe wouldhavediedratherthanhavehischildrenseeninpublicwithoutatie.For peoplelikeCallaghanthetiewasasignofbeingcompleteofshowingrespect. Menweresupposedtowearatiewhengoingtochurchtoworkintheofficeto aparty-almosteverysocialoccasion.??Buttodaypeoplehave beguntoacceptacasualstyleevenforformaloccasions.??The originofthetieistricky.Itstartedassomethingcalledsimplyaband.The termcouldmeananythingaroundaman’sneck.Itappearedinfinerwaysinthe 1630s.Frenchmenshowedaloveofthisparticularfashionstatement.Their neckwear颈饰impressedCharlesIIthekingofEnglandwhowasexiled流放to Franceatthattime.WhenhereturnedtoEnglandin1660hebroughtthisnew fashionitemalongwithhim.??Itwasn’thoweveruntilthelate 18thcenturythatfancyyoungmenintroducedamorecolorfulflowingpieceof cloththateventuallybecameknownasthetie.Thenclubsmilitary institutionsandschoolsbegantousecoloredandpatternedtiestoindicatethe wearer’smembershipinthelate19thcentury.Afterthatthetiebecamea necessaryitemofclothingforBritishgentlemen.??Butnoweven gentlemenaregettingtiredofties.Anywaythedayfeelsabiteasierwhenyou wakeupwithouthavingtodecidewhichtiesuitsyouandyour mood.Thetiesymbolizesallofthefollowingexcept
{{*HTML*}}下面的短文有15处空白请根据短文内容为每处空白确定1个最佳选项 ??????? ?????????{{B}}Solar Storm{{/B}}??AttheendofOctober2003asuddensolarstormhit theearth.Asolarstormreferstothelargeamountsofchargedparticles releasedintospace{{U}}?51?{{/U}}thesolarenergyincreases.The releaseoftheenergy{{U}}?52?{{/U}}placealongwiththeactivityof thesunspotswithacycleof11years.Thistimethe{{U}}?53?{{/U}}of thestormexceededexpectations.??This{{U}}?54?{{/U}}of intensesolarstormwascausedbytheeruptionofasolarflare闪光andthe ejection喷发ofthesolarcorona日冠onOctober282003.Largeamountsof chargedparticlesmoved150000000kilometersthroughspacetowardthe {{U}}?55?{{/U}}in19hours.Theycouldaffectaircraftroaming漫游in space.??Thehigh-energyparticleswill{{U}}?56 ?{{/U}}someofthepartsofanaircraft.Theymayalsocauseittofail. High-energyparticlescanthreatenthesafetyofanaircraftatahighorbit.If anaircraftorbitsatalowerorbititis{{U}}?57?{{/U}}becauseitis undertheprotectionoftheearth’smagneticfield.??Asolar stormnotonlyaffectsaircraftbutalsoisa{{U}}?58?{{/U}}tothe environmentandhumans.Theaerosphereandmagneticfieldoftheearthcan {{U}}?59?{{/U}}humansfromultravioletradiationandX-rays.Whilemost oftheX-raysareabsorbedaftertheyentertheaerosphere大气层stillafew can{{U}}?60?{{/U}}theground.??Thegeomagneticstorm causedbythisroundofsolarstormreachesitshighestlevelonthetwo{{U}} ?61?{{/U}}oftheearthwhichaffectselectricitysupplyofNorth America.Overexposureto{{U}}?62?{{/U}}threatensthehealthof passengersonplanesflyingoverthePolarRegions.Ifweflyintheskyduring suchasolarstormit{{U}}?63?{{/U}}wereceivetentimestheX-ray radiation.It’sreallydamaging.??Scientistssayasolareruption islikethesunsneezingwhichwillmaketheearth{{U}}?64?{{/U}}a cold.Thoughthisnaturalforceisirresistiblescientistscanstill {{U}}?65?{{/U}}itsmovementaccuratelybymonitoring.Facingsuccessive solarstormshumanscan’tdroptheirguard.
{{*HTML*}}??下面有3篇短文每篇短文后有5道题请根据短文内容为每题确定1个最佳选项{{B}}第一篇{{/B}} {{B}}??????? ??IstheTieaNecessity?{{/B}}??Tiesorneckties havebeenasymbolofpolitenessandeleganceinBritainforcenturies.Butthe casualPrimeMinisterTonyBlairhasproblemswiththem.Reportssuggestthat eventhecivilservantsmaystopwearingties.Soarethefamouslyformal Britishreallygoingtoabandontheneckties???Maybe.Lastweek theUK’sCabinetSecretaryAndrewTurnbullopenlywelcomedatielessera.He hintedthatcivilservantswouldsoonbefreeofthecostliest12inchesof fabricthatmostmeneverbuyintheirlives.??InfactBlair showedthisattitudewhenhehadhisfirstgueststoacocktailparty.Manyof themwerecelebrities知名人士withouttieswhichwouldhavebeenunimaginable evenintherecentpast.??ForsomemoreconservativeBritishthe tieisamustforproperappearance.EarlierLaborleaderJimCallaghansaidhe wouldhavediedratherthanhavehischildrenseeninpublicwithoutatie.For peoplelikeCallaghanthetiewasasignofbeingcompleteofshowingrespect. Menweresupposedtowearatiewhengoingtochurchtoworkintheofficeto aparty-almosteverysocialoccasion.??Buttodaypeoplehave beguntoacceptacasualstyleevenforformaloccasions.??The originofthetieistricky.Itstartedassomethingcalledsimplyaband.The termcouldmeananythingaroundaman’sneck.Itappearedinfinerwaysinthe 1630s.Frenchmenshowedaloveofthisparticularfashionstatement.Their neckwear颈饰impressedCharlesIIthekingofEnglandwhowasexiled流放to Franceatthattime.WhenhereturnedtoEnglandin1660hebroughtthisnew fashionitemalongwithhim.??Itwasn’thoweveruntilthelate 18thcenturythatfancyyoungmenintroducedamorecolorfulflowingpieceof cloththateventuallybecameknownasthetie.Thenclubsmilitary institutionsandschoolsbegantousecoloredandpatternedtiestoindicatethe wearer’smembershipinthelate19thcentury.Afterthatthetiebecamea necessaryitemofclothingforBritishgentlemen.??Butnoweven gentlemenaregettingtiredofties.Anywaythedayfeelsabiteasierwhenyou wakeupwithouthavingtodecidewhichtiesuitsyouandyour mood.WhichofthefollowingisNOTasocialoccasion?
{{*HTML*}}??下面的短文有5处空白短文后有6个句子其中5个取自短文请根据短文内容将其分别放回原有位置以恢复文章原貌 ?????????? ???{{B}}HowDidSheConquertheAmericans?{{/B}}? ?African-AmericantalkshowqueenOprahWinfreyistheworld’smost powerfulcelebrityaccordingtoForbesmagazine.{{U}}?46 ?{{/U}}.??Winfrey51draws30millionviewersweeklyinthe UnitedStates.Hertalkshowreaches112countries.SheearnedUS＄225million overthepast12monthstoranksecondincelebrityriches.??The annualForbeslistgivesmostweighttoannualearnings.{{U}}?47 ?{{/U}}??After21yearsherexcitingchatshowstillrules theairwaves.Itcreatednewcelebritiesandhundredsofmillionsofdollarsin profitsthemagazinesaid.??Winfreyismostpopularwithher populartalkshowTheOprahWinfreyShow.Shecanalwaysattractthe superstarsandletthemopenuptoherintimateinterviewingstyle.? ?LastmonthAmericanactorTomCruise42surprisedfanswhenhe celebratedhisnewromancewith26-year-oldactressKatieHolmes.Fiejumpedup anddownshoutingI’minlove.OnlyafewyearsagoCruiseandhisex-wife NicoleKidmanappearedseparatelyonthesameshowtellingthenewsoftheir divorce.{{U}}?48?{{/U}}??Winfrey’sapproachappearsto besimple.Sheisinpursuitofself-improvementandself-empowerment自强.This hasprovedtobejustwhatpeopleespeciallywomenwant.? ?Winfreyoftentalksaboutherpersonalsecretsonhershow.Thatpullsin viewers.Forexamplesherevealedthatshehadbeensexuallyabusedasachild andhasspokenfreelyofherstrugglewithherweight.??Winfrey wasborntoapoorfamilyinMississippiin1954.{{U}}?49?{{/U}}Atthe ageof19shebecametheyoungestpersonandthefirstAfrican-Americanwoman toanchor主持anewsprogramme??Hersuccesshasnotjustbeen onthescreen.Hermediagroupincludesawomen’sTVnetworkandwebsitesfor women.??Winfrey’sworkhasextendedtosocialchange.{{U}} ?50?{{/U}}.??ShetestifiedbeforetheUSSenateto establishanationaldatabaseofdangerouschildabusers.PresidentBillClinton latersignedOprahBillintolaw.A?Butitalsolooksatthe celebrity’spresenceontheInternetandinthemedia.B?In1991she didalotofworkfortheNationalChildProtectionAct.C?Shewasnot averysuccessfulwoman.D?Shebeganbroadcastingwhilestillathigh school.E?ItplacedWinfreyatthetopofitsannualrankingofthe100 peoplelastweek.F?Thecouplehadbeentight-lippedabouttheir break-up.
ThepeoplewhospeakEsperantohopethatthelanguagesomedaywillbecomethe{{U}}international{{/U}}languagefortradescienceanddiplomacy.
{{*HTML*}}下面的短文有15处空白请根据短文内容为每处空白确定1个最佳选项 ??????? ?????????{{B}}Solar Storm{{/B}}??AttheendofOctober2003asuddensolarstormhit theearth.Asolarstormreferstothelargeamountsofchargedparticles releasedintospace{{U}}?51?{{/U}}thesolarenergyincreases.The releaseoftheenergy{{U}}?52?{{/U}}placealongwiththeactivityof thesunspotswithacycleof11years.Thistimethe{{U}}?53?{{/U}}of thestormexceededexpectations.??This{{U}}?54?{{/U}}of intensesolarstormwascausedbytheeruptionofasolarflare闪光andthe ejection喷发ofthesolarcorona日冠onOctober282003.Largeamountsof chargedparticlesmoved150000000kilometersthroughspacetowardthe {{U}}?55?{{/U}}in19hours.Theycouldaffectaircraftroaming漫游in space.??Thehigh-energyparticleswill{{U}}?56 ?{{/U}}someofthepartsofanaircraft.Theymayalsocauseittofail. High-energyparticlescanthreatenthesafetyofanaircraftatahighorbit.If anaircraftorbitsatalowerorbititis{{U}}?57?{{/U}}becauseitis undertheprotectionoftheearth’smagneticfield.??Asolar stormnotonlyaffectsaircraftbutalsoisa{{U}}?58?{{/U}}tothe environmentandhumans.Theaerosphereandmagneticfieldoftheearthcan {{U}}?59?{{/U}}humansfromultravioletradiationandX-rays.Whilemost oftheX-raysareabsorbedaftertheyentertheaerosphere大气层stillafew can{{U}}?60?{{/U}}theground.??Thegeomagneticstorm causedbythisroundofsolarstormreachesitshighestlevelonthetwo{{U}} ?61?{{/U}}oftheearthwhichaffectselectricitysupplyofNorth America.Overexposureto{{U}}?62?{{/U}}threatensthehealthof passengersonplanesflyingoverthePolarRegions.Ifweflyintheskyduring suchasolarstormit{{U}}?63?{{/U}}wereceivetentimestheX-ray radiation.It’sreallydamaging.??Scientistssayasolareruption islikethesunsneezingwhichwillmaketheearth{{U}}?64?{{/U}}a cold.Thoughthisnaturalforceisirresistiblescientistscanstill {{U}}?65?{{/U}}itsmovementaccuratelybymonitoring.Facingsuccessive solarstormshumanscan’tdroptheirguard.
{{*HTML*}}下面的短文有15处空白请根据短文内容为每处空白确定1个最佳选项 ??????? ?????????{{B}}Solar Storm{{/B}}??AttheendofOctober2003asuddensolarstormhit theearth.Asolarstormreferstothelargeamountsofchargedparticles releasedintospace{{U}}?51?{{/U}}thesolarenergyincreases.The releaseoftheenergy{{U}}?52?{{/U}}placealongwiththeactivityof thesunspotswithacycleof11years.Thistimethe{{U}}?53?{{/U}}of thestormexceededexpectations.??This{{U}}?54?{{/U}}of intensesolarstormwascausedbytheeruptionofasolarflare闪光andthe ejection喷发ofthesolarcorona日冠onOctober282003.Largeamountsof chargedparticlesmoved150000000kilometersthroughspacetowardthe {{U}}?55?{{/U}}in19hours.Theycouldaffectaircraftroaming漫游in space.??Thehigh-energyparticleswill{{U}}?56 ?{{/U}}someofthepartsofanaircraft.Theymayalsocauseittofail. High-energyparticlescanthreatenthesafetyofanaircraftatahighorbit.If anaircraftorbitsatalowerorbititis{{U}}?57?{{/U}}becauseitis undertheprotectionoftheearth’smagneticfield.??Asolar stormnotonlyaffectsaircraftbutalsoisa{{U}}?58?{{/U}}tothe environmentandhumans.Theaerosphereandmagneticfieldoftheearthcan {{U}}?59?{{/U}}humansfromultravioletradiationandX-rays.Whilemost oftheX-raysareabsorbedaftertheyentertheaerosphere大气层stillafew can{{U}}?60?{{/U}}theground.??Thegeomagneticstorm causedbythisroundofsolarstormreachesitshighestlevelonthetwo{{U}} ?61?{{/U}}oftheearthwhichaffectselectricitysupplyofNorth America.Overexposureto{{U}}?62?{{/U}}threatensthehealthof passengersonplanesflyingoverthePolarRegions.Ifweflyintheskyduring suchasolarstormit{{U}}?63?{{/U}}wereceivetentimestheX-ray radiation.It’sreallydamaging.??Scientistssayasolareruption islikethesunsneezingwhichwillmaketheearth{{U}}?64?{{/U}}a cold.Thoughthisnaturalforceisirresistiblescientistscanstill {{U}}?65?{{/U}}itsmovementaccuratelybymonitoring.Facingsuccessive solarstormshumanscan’tdroptheirguard.
{{*HTML*}}? ?下面的短文后列出了7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文中没有提及请选择C ??????? ???????{{B}}Monarchwithouta Kingdom{{/B}}??ThisNovemberahundredmillionbutterflieswill dropfromtheskyoverMexicolikeautumnleaves.Butforhowlong?Genetically modifiedmaize玉米couldmeanextinctionforthisbeautifulbutterflyRafael Ruizreports.??Althoughitsbodyisabout3cmlonganditonly weighs1gmtheMonarchbutterflymanagestotravel5000kmeachyear.It seemstobesofragilebutitslongjourneysareproofofitsamazingability tosurvive.ThisautumntheMonarchbutterflywilloncemoresetoutonits journeyfromtheUS.ItwillkeepgoinguntilitreachesMexico.Ittravels thesehugedistancestoescapethecoldweatherinthenorth.??In NovembermillionsofMonarchsfalllikebrightgoldenrainontotheforestsin themountainsofcentralMexico.Inthesilenceofthesemountainsyoucanhear astrangeflapping拍动ofwingsastheMonarchsarriveattheirdestination. Inthemountainswhichreachaheightof3000metresthebutterfliesare safe.??Beforereachingtheirjourney’sendtheyhavefacedstrong windsrain.andsnowstormsandtheydonotallmanagetoreachtheir destination.Whenthewintersarereallybadperhaps70percentofthemwill notsurvive.TheirlongjourneytoMexicoisthoughttobeoneofthemost amazingeventsinthewholeoftheAmericancontinent.Whentheygettherethey willstayuntilthebeginningofAprilwhentheirinternalcalendartellsthem thatitistimetogoback.Thelongjourneywithallitsdangersbegins again.??Thesedelicatecreaturesnowfacedangerofanotherkind -fromscientificprogress.IntheUSmillionsoffarmsgrowgenetically modifiedmaizewhichispurepoisonforthebutterfly.Laboratoryexperiments haveshownthathalfofthebutterflieswhichfeedontheleavesofgenetically modifiedmaizediewithin48hours.Notallexpertsagreethatthisvarietyof maizeisresponsibleforthethreattotheMonarchs.Inspiteofthesedoubts theEuropeanUnionhasrefusedtoapprovenewcropsofgeneticallymodified maizeuntilfurtherinvestigationshavebeencarriedout.? ?GreenpeaceiscampaigningagainstgeneticallymodifiedproductsinSpain therearealready20000hectaresofmodifiedmaize.Theenvironmental organizationrecentlypublishedalistof100speciesofbutterflyinEurope alonewhicharethreatenedwithextinction.TheMonarchbutterflylooksfragile.
{{*HTML*}}下面的短文有15处空白请根据短文内容为每处空白确定1个最佳选项 ??????? ?????????{{B}}Solar Storm{{/B}}??AttheendofOctober2003asuddensolarstormhit theearth.Asolarstormreferstothelargeamountsofchargedparticles releasedintospace{{U}}?51?{{/U}}thesolarenergyincreases.The releaseoftheenergy{{U}}?52?{{/U}}placealongwiththeactivityof thesunspotswithacycleof11years.Thistimethe{{U}}?53?{{/U}}of thestormexceededexpectations.??This{{U}}?54?{{/U}}of intensesolarstormwascausedbytheeruptionofasolarflare闪光andthe ejection喷发ofthesolarcorona日冠onOctober282003.Largeamountsof chargedparticlesmoved150000000kilometersthroughspacetowardthe {{U}}?55?{{/U}}in19hours.Theycouldaffectaircraftroaming漫游in space.??Thehigh-energyparticleswill{{U}}?56 ?{{/U}}someofthepartsofanaircraft.Theymayalsocauseittofail. High-energyparticlescanthreatenthesafetyofanaircraftatahighorbit.If anaircraftorbitsatalowerorbititis{{U}}?57?{{/U}}becauseitis undertheprotectionoftheearth’smagneticfield.??Asolar stormnotonlyaffectsaircraftbutalsoisa{{U}}?58?{{/U}}tothe environmentandhumans.Theaerosphereandmagneticfieldoftheearthcan {{U}}?59?{{/U}}humansfromultravioletradiationandX-rays.Whilemost oftheX-raysareabsorbedaftertheyentertheaerosphere大气层stillafew can{{U}}?60?{{/U}}theground.??Thegeomagneticstorm causedbythisroundofsolarstormreachesitshighestlevelonthetwo{{U}} ?61?{{/U}}oftheearthwhichaffectselectricitysupplyofNorth America.Overexposureto{{U}}?62?{{/U}}threatensthehealthof passengersonplanesflyingoverthePolarRegions.Ifweflyintheskyduring suchasolarstormit{{U}}?63?{{/U}}wereceivetentimestheX-ray radiation.It’sreallydamaging.??Scientistssayasolareruption islikethesunsneezingwhichwillmaketheearth{{U}}?64?{{/U}}a cold.Thoughthisnaturalforceisirresistiblescientistscanstill {{U}}?65?{{/U}}itsmovementaccuratelybymonitoring.Facingsuccessive solarstormshumanscan’tdroptheirguard.
{{*HTML*}}下面的短文有15处空白请根据短文内容为每处空白确定1个最佳选项 ??????? ?????????{{B}}Solar Storm{{/B}}??AttheendofOctober2003asuddensolarstormhit theearth.Asolarstormreferstothelargeamountsofchargedparticles releasedintospace{{U}}?51?{{/U}}thesolarenergyincreases.The releaseoftheenergy{{U}}?52?{{/U}}placealongwiththeactivityof thesunspotswithacycleof11years.Thistimethe{{U}}?53?{{/U}}of thestormexceededexpectations.??This{{U}}?54?{{/U}}of intensesolarstormwascausedbytheeruptionofasolarflare闪光andthe ejection喷发ofthesolarcorona日冠onOctober282003.Largeamountsof chargedparticlesmoved150000000kilometersthroughspacetowardthe {{U}}?55?{{/U}}in19hours.Theycouldaffectaircraftroaming漫游in space.??Thehigh-energyparticleswill{{U}}?56 ?{{/U}}someofthepartsofanaircraft.Theymayalsocauseittofail. High-energyparticlescanthreatenthesafetyofanaircraftatahighorbit.If anaircraftorbitsatalowerorbititis{{U}}?57?{{/U}}becauseitis undertheprotectionoftheearth’smagneticfield.??Asolar stormnotonlyaffectsaircraftbutalsoisa{{U}}?58?{{/U}}tothe environmentandhumans.Theaerosphereandmagneticfieldoftheearthcan {{U}}?59?{{/U}}humansfromultravioletradiationandX-rays.Whilemost oftheX-raysareabsorbedaftertheyentertheaerosphere大气层stillafew can{{U}}?60?{{/U}}theground.??Thegeomagneticstorm causedbythisroundofsolarstormreachesitshighestlevelonthetwo{{U}} ?61?{{/U}}oftheearthwhichaffectselectricitysupplyofNorth America.Overexposureto{{U}}?62?{{/U}}threatensthehealthof passengersonplanesflyingoverthePolarRegions.Ifweflyintheskyduring suchasolarstormit{{U}}?63?{{/U}}wereceivetentimestheX-ray radiation.It’sreallydamaging.??Scientistssayasolareruption islikethesunsneezingwhichwillmaketheearth{{U}}?64?{{/U}}a cold.Thoughthisnaturalforceisirresistiblescientistscanstill {{U}}?65?{{/U}}itsmovementaccuratelybymonitoring.Facingsuccessive solarstormshumanscan’tdroptheirguard.
{{*HTML*}}{{B}}第三篇{{/B}} {{B}}?????? ?ControllingRobotswiththeMind{{/B}}??Belleourtiny monkeywasseatedinherspecialchairinsideachamberatourDukeUniversity lab.Herrighthandgraspedajoystick操纵杆asshewatchedahorizontalseries oflightsonadisplaypanel.Sheknewthatifalightsuddenlyshoneandshe movedthejoystickleftorrighttocorrespondtoitspositionshewouldbe sentadropoffruitjuiceintohermouth.??Belleworeacap gluedtoherhead.Underitwerefourplasticconnectorswhichfedarraysof microwires-eachwirefinerthanthefinestsewingthread-intodifferent regionsofBelle’smotorcortex脑皮层thebraintissuethatplansmovementsand sendsinstructions.Eachofthe100microwireslaybesideasinglemotorneuron 神经元.Whenaneuronproducedanelectricaldischargetheadjacentmicrowire wouldcapturethecurrantandsenditupthroughasmallwiringbundlethatran fromBelle’scaptoaboxofelectronicsonatablenexttothebooth.Thebox inturnwaslinkedtotwocomputersonenextdoorandtheotherhalfacountry away.??Aftermonthsofhardworkwewereabouttotesttheidea thatwecouldreliablytranslatetherawelectricalactivityinalivingbeing’s brain-Belle’smerethoughts-intosignalsthatcoulddirecttheactionsofa robot.WehadassembledamultijointedrobotarminthisroomawayfromBelle’s viewwhichshewouldcontrolforthefirsttime.AssoonasBelle’sbrain sensedalitspotonthepanelelectronicsintheboxrunningtworeal-time mathematicalmodelswouldrapidlyanalyzethetinyactionpotentialsproducedby herbraincells.Ourlabcomputerwouldconverttheelectricalpatternsinto instructionsthatwoulddirecttherobotarm.Sixhundredmilesnorthin CambridgeMassadifferentcomputerwouldproducethesameactionsinanother robotarmbuiltbyMandayamA.Srinivasan.Ifwehaddoneeverythingcorrectly thetworobotarmswouldbehaveasBelle’sarmdidatexactlythesame time.??Finallythemomentcame.Werandomlyswitchedonlightsin frontofBelleandsheimmediatelymovedherjoystickbackandforthto correspondtothem.OurrobotarmmovedsimilarlytoBelle’srealarm.Sodid Srinivasan’s.Belleandtherobotsmovedinsynchrony同步likedancers choreographed设计舞蹈动作bytheelectricalimpulsessparkinginBelle’s mind.??Inthetwoyearssincethatdayourlabsandseveral othershaveadvancedneurosciencecomputerscienceandmicroelectronicsto createwaysforratsmonkeysandeventuallyhumanstocontrolmechanicaland electronicmachinespurelybythinkingthroughorimaginingthemotions.Our immediategoalistohelpapersonwhohasbeenunabletomovebyaneurological 神经的disorderorspinalcord脊髓injurybutwhosemotorcortexissparedto operateawheelchairoraroboticlimb.Theshort-termgoaloftheresearchistohelpaperson
{{*HTML*}}??下面有3篇短文每篇短文后有5道题请根据短文内容为每题确定1个最佳选项{{B}}第一篇{{/B}} {{B}}??????? ??IstheTieaNecessity?{{/B}}??Tiesorneckties havebeenasymbolofpolitenessandeleganceinBritainforcenturies.Butthe casualPrimeMinisterTonyBlairhasproblemswiththem.Reportssuggestthat eventhecivilservantsmaystopwearingties.Soarethefamouslyformal Britishreallygoingtoabandontheneckties???Maybe.Lastweek theUK’sCabinetSecretaryAndrewTurnbullopenlywelcomedatielessera.He hintedthatcivilservantswouldsoonbefreeofthecostliest12inchesof fabricthatmostmeneverbuyintheirlives.??InfactBlair showedthisattitudewhenhehadhisfirstgueststoacocktailparty.Manyof themwerecelebrities知名人士withouttieswhichwouldhavebeenunimaginable evenintherecentpast.??ForsomemoreconservativeBritishthe tieisamustforproperappearance.EarlierLaborleaderJimCallaghansaidhe wouldhavediedratherthanhavehischildrenseeninpublicwithoutatie.For peoplelikeCallaghanthetiewasasignofbeingcompleteofshowingrespect. Menweresupposedtowearatiewhengoingtochurchtoworkintheofficeto aparty-almosteverysocialoccasion.??Buttodaypeoplehave beguntoacceptacasualstyleevenforformaloccasions.??The originofthetieistricky.Itstartedassomethingcalledsimplyaband.The termcouldmeananythingaroundaman’sneck.Itappearedinfinerwaysinthe 1630s.Frenchmenshowedaloveofthisparticularfashionstatement.Their neckwear颈饰impressedCharlesIIthekingofEnglandwhowasexiled流放to Franceatthattime.WhenhereturnedtoEnglandin1660hebroughtthisnew fashionitemalongwithhim.??Itwasn’thoweveruntilthelate 18thcenturythatfancyyoungmenintroducedamorecolorfulflowingpieceof cloththateventuallybecameknownasthetie.Thenclubsmilitary institutionsandschoolsbegantousecoloredandpatternedtiestoindicatethe wearer’smembershipinthelate19thcentury.Afterthatthetiebecamea necessaryitemofclothingforBritishgentlemen.??Butnoweven gentlemenaregettingtiredofties.Anywaythedayfeelsabiteasierwhenyou wakeupwithouthavingtodecidewhichtiesuitsyouandyour mood.WhendidBritishgentlemenbegintoweartiesregularly?
{{*HTML*}}? ?下面的短文后列出了7个句子请根据短文的内容对每个句子做出判断如果该句提供的是正确信息请选择A如果该句提供的是错误信息请选择B如果该句的信息文中没有提及请选择C ??????? ???????{{B}}Monarchwithouta Kingdom{{/B}}??ThisNovemberahundredmillionbutterflieswill dropfromtheskyoverMexicolikeautumnleaves.Butforhowlong?Genetically modifiedmaize玉米couldmeanextinctionforthisbeautifulbutterflyRafael Ruizreports.??Althoughitsbodyisabout3cmlonganditonly weighs1gmtheMonarchbutterflymanagestotravel5000kmeachyear.It seemstobesofragilebutitslongjourneysareproofofitsamazingability tosurvive.ThisautumntheMonarchbutterflywilloncemoresetoutonits journeyfromtheUS.ItwillkeepgoinguntilitreachesMexico.Ittravels thesehugedistancestoescapethecoldweatherinthenorth.??In NovembermillionsofMonarchsfalllikebrightgoldenrainontotheforestsin themountainsofcentralMexico.Inthesilenceofthesemountainsyoucanhear astrangeflapping拍动ofwingsastheMonarchsarriveattheirdestination. Inthemountainswhichreachaheightof3000metresthebutterfliesare safe.??Beforereachingtheirjourney’sendtheyhavefacedstrong windsrain.andsnowstormsandtheydonotallmanagetoreachtheir destination.Whenthewintersarereallybadperhaps70percentofthemwill notsurvive.TheirlongjourneytoMexicoisthoughttobeoneofthemost amazingeventsinthewholeoftheAmericancontinent.Whentheygettherethey willstayuntilthebeginningofAprilwhentheirinternalcalendartellsthem thatitistimetogoback.Thelongjourneywithallitsdangersbegins again.??Thesedelicatecreaturesnowfacedangerofanotherkind -fromscientificprogress.IntheUSmillionsoffarmsgrowgenetically modifiedmaizewhichispurepoisonforthebutterfly.Laboratoryexperiments haveshownthathalfofthebutterflieswhichfeedontheleavesofgenetically modifiedmaizediewithin48hours.Notallexpertsagreethatthisvarietyof maizeisresponsibleforthethreattotheMonarchs.Inspiteofthesedoubts theEuropeanUnionhasrefusedtoapprovenewcropsofgeneticallymodified maizeuntilfurtherinvestigationshavebeencarriedout.? ?GreenpeaceiscampaigningagainstgeneticallymodifiedproductsinSpain therearealready20000hectaresofmodifiedmaize.Theenvironmental organizationrecentlypublishedalistof100speciesofbutterflyinEurope alonewhicharethreatenedwithextinction.Inbadwintersabout70percentofthebutterfliescanstayalive.
{{*HTML*}}{{B}}第三篇{{/B}} {{B}}?????? ?ControllingRobotswiththeMind{{/B}}??Belleourtiny monkeywasseatedinherspecialchairinsideachamberatourDukeUniversity lab.Herrighthandgraspedajoystick操纵杆asshewatchedahorizontalseries oflightsonadisplaypanel.Sheknewthatifalightsuddenlyshoneandshe movedthejoystickleftorrighttocorrespondtoitspositionshewouldbe sentadropoffruitjuiceintohermouth.??Belleworeacap gluedtoherhead.Underitwerefourplasticconnectorswhichfedarraysof microwires-eachwirefinerthanthefinestsewingthread-intodifferent regionsofBelle’smotorcortex脑皮层thebraintissuethatplansmovementsand sendsinstructions.Eachofthe100microwireslaybesideasinglemotorneuron 神经元.Whenaneuronproducedanelectricaldischargetheadjacentmicrowire wouldcapturethecurrantandsenditupthroughasmallwiringbundlethatran fromBelle’scaptoaboxofelectronicsonatablenexttothebooth.Thebox inturnwaslinkedtotwocomputersonenextdoorandtheotherhalfacountry away.??Aftermonthsofhardworkwewereabouttotesttheidea thatwecouldreliablytranslatetherawelectricalactivityinalivingbeing’s brain-Belle’smerethoughts-intosignalsthatcoulddirecttheactionsofa robot.WehadassembledamultijointedrobotarminthisroomawayfromBelle’s viewwhichshewouldcontrolforthefirsttime.AssoonasBelle’sbrain sensedalitspotonthepanelelectronicsintheboxrunningtworeal-time mathematicalmodelswouldrapidlyanalyzethetinyactionpotentialsproducedby herbraincells.Ourlabcomputerwouldconverttheelectricalpatternsinto instructionsthatwoulddirecttherobotarm.Sixhundredmilesnorthin CambridgeMassadifferentcomputerwouldproducethesameactionsinanother robotarmbuiltbyMandayamA.Srinivasan.Ifwehaddoneeverythingcorrectly thetworobotarmswouldbehaveasBelle’sarmdidatexactlythesame time.??Finallythemomentcame.Werandomlyswitchedonlightsin frontofBelleandsheimmediatelymovedherjoystickbackandforthto correspondtothem.OurrobotarmmovedsimilarlytoBelle’srealarm.Sodid Srinivasan’s.Belleandtherobotsmovedinsynchrony同步likedancers choreographed设计舞蹈动作bytheelectricalimpulsessparkinginBelle’s mind.??Inthetwoyearssincethatdayourlabsandseveral othershaveadvancedneurosciencecomputerscienceandmicroelectronicsto createwaysforratsmonkeysandeventuallyhumanstocontrolmechanicaland electronicmachinespurelybythinkingthroughorimaginingthemotions.Our immediategoalistohelpapersonwhohasbeenunabletomovebyaneurological 神经的disorderorspinalcord脊髓injurybutwhosemotorcortexissparedto operateawheelchairoraroboticlimb.Bellewouldbefedsomefruitjuiceifshe
{{*HTML*}}? ?下面的短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选择1个最佳标题2第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项 ??????????{{B}}The ScienceofSport{{/B}}1?Atthe2004OlympicGamesinAthenstheChinese athleteLiuXiangequaledtheworldrecordforthe110metreshurdles跨栏when herantheracein12.91seconds.Thisrecordtimehadbeensetin1993by Britishsprinter短跑运动员ColinJacksonand9yearswentbybeforeanother athletewasabletorunasfast.2?Record-breakinginalltrackevents isslowingdownandweappeartobemovingmuchclosertothelimitsofhuman performance.Neverthelesseveryfouryearsrecordswhichwerepreviously thoughttobeunbeatablearebroken.Sowhat’sbehindthisnever-ending improvementinperformance?Andhowlongcanwekeepbreakingrecords?isthere alimittohumanperformanceorwillathletescontinuetogainseconds?3 ?Mostexpertsagreethatitisn’ttheathletes’bodieswhichhavechanged butthehugeadvancesinsportsciencewhichhaveenabledthemtoimprovetheir performances.Theindividualathleteobviouslyhastohavethenecessaryskill anddeterminationtosucceedbutthehelpofscienceandtechnologycanbe significant.Researchhasbroughtabetterunderstandingoftheathlete’sbody andmindbuttheadvancesinsportsequipmenttechnologyhavealsohadan importantimpactonhumanperformance.4?Scientistshaveshownthatan athlete’sbody’sneedsvaryaccordingtothetypeofsport.Thisresearchhas helpedtopsportspeopletoadapttheirtrainingprogrammeanddietbetterto theirparticularneeds.Runningthemarathonandcyclingforexampleare endurance耐力sportsandrequireadifferentparathion硝苯硫磷脂tothatofa 100-metrasprinter.Insomesportschangesintechniqueshavesignificantly improvedperformance.5?Butinanysportaplayer’ssuccessorfailure resultsfromacombinationofbothphysicalandmentalabilities.Mostcoaches usepsychologicaltechniquestohelptheirathletescopewithstressand concentrateontheirperformance.ForexampletheEnglishfootballteamlistens tomusicinthechangingroomsbeforeagametohelptheplayersrelaxandnot feelsonervous.Beforeadifficultmatchtennisplayersareencouragedtouse visualization想象techniquestobuildconfidenceandthisisalmostasgoodas practice.6?Butassciencebeginstodominatesportareweindanger oflosingsightoftheheartofthecompetitionthesportingchallenge?What’s morearealltheseadvantagesfair?Itismoredifficultfortoday’sathletes______. A?toavoidpsychologicaltechniques B?tobreakrecords C?tobetterunderstandtheathlete’sbodyandmind D?totimeandspace E?tobereplacingthesportingchallenge F?tohumanperformance
{{*HTML*}}? ?下面的短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选择1个最佳标题2第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项 ??????????{{B}}The ScienceofSport{{/B}}1?Atthe2004OlympicGamesinAthenstheChinese athleteLiuXiangequaledtheworldrecordforthe110metreshurdles跨栏when herantheracein12.91seconds.Thisrecordtimehadbeensetin1993by Britishsprinter短跑运动员ColinJacksonand9yearswentbybeforeanother athletewasabletorunasfast.2?Record-breakinginalltrackevents isslowingdownandweappeartobemovingmuchclosertothelimitsofhuman performance.Neverthelesseveryfouryearsrecordswhichwerepreviously thoughttobeunbeatablearebroken.Sowhat’sbehindthisnever-ending improvementinperformance?Andhowlongcanwekeepbreakingrecords?isthere alimittohumanperformanceorwillathletescontinuetogainseconds?3 ?Mostexpertsagreethatitisn’ttheathletes’bodieswhichhavechanged butthehugeadvancesinsportsciencewhichhaveenabledthemtoimprovetheir performances.Theindividualathleteobviouslyhastohavethenecessaryskill anddeterminationtosucceedbutthehelpofscienceandtechnologycanbe significant.Researchhasbroughtabetterunderstandingoftheathlete’sbody andmindbuttheadvancesinsportsequipmenttechnologyhavealsohadan importantimpactonhumanperformance.4?Scientistshaveshownthatan athlete’sbody’sneedsvaryaccordingtothetypeofsport.Thisresearchhas helpedtopsportspeopletoadapttheirtrainingprogrammeanddietbetterto theirparticularneeds.Runningthemarathonandcyclingforexampleare endurance耐力sportsandrequireadifferentparathion硝苯硫磷脂tothatofa 100-metrasprinter.Insomesportschangesintechniqueshavesignificantly improvedperformance.5?Butinanysportaplayer’ssuccessorfailure resultsfromacombinationofbothphysicalandmentalabilities.Mostcoaches usepsychologicaltechniquestohelptheirathletescopewithstressand concentrateontheirperformance.ForexampletheEnglishfootballteamlistens tomusicinthechangingroomsbeforeagametohelptheplayersrelaxandnot feelsonervous.Beforeadifficultmatchtennisplayersareencouragedtouse visualization想象techniquestobuildconfidenceandthisisalmostasgoodas practice.6?Butassciencebeginstodominatesportareweindanger oflosingsightoftheheartofthecompetitionthesportingchallenge?What’s morearealltheseadvantagesfair?Paragraph4______.
{{*HTML*}}? ?下面的短文后有2项测试任务1第23～26题要求从所给的6个选项中为第2～5段每段选择1个最佳标题2第27～30题要求从所给的6个选项中为每个句子确定1个最佳选项 ??????????{{B}}The ScienceofSport{{/B}}1?Atthe2004OlympicGamesinAthenstheChinese athleteLiuXiangequaledtheworldrecordforthe110metreshurdles跨栏when herantheracein12.91seconds.Thisrecordtimehadbeensetin1993by Britishsprinter短跑运动员ColinJacksonand9yearswentbybeforeanother athletewasabletorunasfast.2?Record-breakinginalltrackevents isslowingdownandweappeartobemovingmuchclosertothelimitsofhuman performance.Neverthelesseveryfouryearsrecordswhichwerepreviously thoughttobeunbeatablearebroken.Sowhat’sbehindthisnever-ending improvementinperformance?Andhowlongcanwekeepbreakingrecords?isthere alimittohumanperformanceorwillathletescontinuetogainseconds?3 ?Mostexpertsagreethatitisn’ttheathletes’bodieswhichhavechanged butthehugeadvancesinsportsciencewhichhaveenabledthemtoimprovetheir performances.Theindividualathleteobviouslyhastohavethenecessaryskill anddeterminationtosucceedbutthehelpofscienceandtechnologycanbe significant.Researchhasbroughtabetterunderstandingoftheathlete’sbody andmindbuttheadvancesinsportsequipmenttechnologyhavealsohadan importantimpactonhumanperformance.4?Scientistshaveshownthatan athlete’sbody’sneedsvaryaccordingtothetypeofsport.Thisresearchhas helpedtopsportspeopletoadapttheirtrainingprogrammeanddietbetterto theirparticularneeds.Runningthemarathonandcyclingforexampleare endurance耐力sportsandrequireadifferentparathion硝苯硫磷脂tothatofa 100-metrasprinter.Insomesportschangesintechniqueshavesignificantly improvedperformance.5?Butinanysportaplayer’ssuccessorfailure resultsfromacombinationofbothphysicalandmentalabilities.Mostcoaches usepsychologicaltechniquestohelptheirathletescopewithstressand concentrateontheirperformance.ForexampletheEnglishfootballteamlistens tomusicinthechangingroomsbeforeagametohelptheplayersrelaxandnot feelsonervous.Beforeadifficultmatchtennisplayersareencouragedtouse visualization想象techniquestobuildconfidenceandthisisalmostasgoodas practice.6?Butassciencebeginstodominatesportareweindanger oflosingsightoftheheartofthecompetitionthesportingchallenge?What’s morearealltheseadvantagesfair?Researchhashelpedcoaches______.
{{*HTML*}}下面的短文有15处空白请根据短文内容为每处空白确定1个最佳选项 ??????? ?????????{{B}}Solar Storm{{/B}}??AttheendofOctober2003asuddensolarstormhit theearth.Asolarstormreferstothelargeamountsofchargedparticles releasedintospace{{U}}?51?{{/U}}thesolarenergyincreases.The releaseoftheenergy{{U}}?52?{{/U}}placealongwiththeactivityof thesunspotswithacycleof11years.Thistimethe{{U}}?53?{{/U}}of thestormexceededexpectations.??This{{U}}?54?{{/U}}of intensesolarstormwascausedbytheeruptionofasolarflare闪光andthe ejection喷发ofthesolarcorona日冠onOctober282003.Largeamountsof chargedparticlesmoved150000000kilometersthroughspacetowardthe {{U}}?55?{{/U}}in19hours.Theycouldaffectaircraftroaming漫游in space.??Thehigh-energyparticleswill{{U}}?56 ?{{/U}}someofthepartsofanaircraft.Theymayalsocauseittofail. High-energyparticlescanthreatenthesafetyofanaircraftatahighorbit.If anaircraftorbitsatalowerorbititis{{U}}?57?{{/U}}becauseitis undertheprotectionoftheearth’smagneticfield.??Asolar stormnotonlyaffectsaircraftbutalsoisa{{U}}?58?{{/U}}tothe environmentandhumans.Theaerosphereandmagneticfieldoftheearthcan {{U}}?59?{{/U}}humansfromultravioletradiationandX-rays.Whilemost oftheX-raysareabsorbedaftertheyentertheaerosphere大气层stillafew can{{U}}?60?{{/U}}theground.??Thegeomagneticstorm causedbythisroundofsolarstormreachesitshighestlevelonthetwo{{U}} ?61?{{/U}}oftheearthwhichaffectselectricitysupplyofNorth America.Overexposureto{{U}}?62?{{/U}}threatensthehealthof passengersonplanesflyingoverthePolarRegions.Ifweflyintheskyduring suchasolarstormit{{U}}?63?{{/U}}wereceivetentimestheX-ray radiation.It’sreallydamaging.??Scientistssayasolareruption islikethesunsneezingwhichwillmaketheearth{{U}}?64?{{/U}}a cold.Thoughthisnaturalforceisirresistiblescientistscanstill {{U}}?65?{{/U}}itsmovementaccuratelybymonitoring.Facingsuccessive solarstormshumanscan’tdroptheirguard.
{{*HTML*}}下面的短文有15处空白请根据短文内容为每处空白确定1个最佳选项 ??????? ?????????{{B}}Solar Storm{{/B}}??AttheendofOctober2003asuddensolarstormhit theearth.Asolarstormreferstothelargeamountsofchargedparticles releasedintospace{{U}}?51?{{/U}}thesolarenergyincreases.The releaseoftheenergy{{U}}?52?{{/U}}placealongwiththeactivityof thesunspotswithacycleof11years.Thistimethe{{U}}?53?{{/U}}of thestormexceededexpectations.??This{{U}}?54?{{/U}}of intensesolarstormwascausedbytheeruptionofasolarflare闪光andthe ejection喷发ofthesolarcorona日冠onOctober282003.Largeamountsof chargedparticlesmoved150000000kilometersthroughspacetowardthe {{U}}?55?{{/U}}in19hours.Theycouldaffectaircraftroaming漫游in space.??Thehigh-energyparticleswill{{U}}?56 ?{{/U}}someofthepartsofanaircraft.Theymayalsocauseittofail. High-energyparticlescanthreatenthesafetyofanaircraftatahighorbit.If anaircraftorbitsatalowerorbititis{{U}}?57?{{/U}}becauseitis undertheprotectionoftheearth’smagneticfield.??Asolar stormnotonlyaffectsaircraftbutalsoisa{{U}}?58?{{/U}}tothe environmentandhumans.Theaerosphereandmagneticfieldoftheearthcan {{U}}?59?{{/U}}humansfromultravioletradiationandX-rays.Whilemost oftheX-raysareabsorbedaftertheyentertheaerosphere大气层stillafew can{{U}}?60?{{/U}}theground.??Thegeomagneticstorm causedbythisroundofsolarstormreachesitshighestlevelonthetwo{{U}} ?61?{{/U}}oftheearthwhichaffectselectricitysupplyofNorth America.Overexposureto{{U}}?62?{{/U}}threatensthehealthof passengersonplanesflyingoverthePolarRegions.Ifweflyintheskyduring suchasolarstormit{{U}}?63?{{/U}}wereceivetentimestheX-ray radiation.It’sreallydamaging.??Scientistssayasolareruption islikethesunsneezingwhichwillmaketheearth{{U}}?64?{{/U}}a cold.Thoughthisnaturalforceisirresistiblescientistscanstill {{U}}?65?{{/U}}itsmovementaccuratelybymonitoring.Facingsuccessive solarstormshumanscan’tdroptheirguard.
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