2026年PTE真题练习卷

2026年PTE真题练习卷Section1:Speaking&WritingPart1:PersonalIntroduction(Note:Thissectionisforpracticeonly.Intherealexam,youhave25secondstointroduceyourself.)Prompt:Pleaseintroduceyourselfbriefly.Includeyourname,yourcurrentlevelofeducation,andyourfuturegoals.Part2:ReadAloud(Lookatthetextbelow.In40seconds,youwillhave40secondstoreadthetextaloudasnaturallyandclearlyaspossible.)Question1:Thedevelopmentofrenewableenergysourcesiscriticalformitigatingtheeffectsofclimatechange.Solarandwindpowerhaveseensignificantcostreductionsoverthepastdecade,makingthemviablealternativestofossilfuels.However,challengesremainregardingenergystorageandgridintegrationtoensureastablepowersupply.Question2:Behavioraleconomicscombinespsychologyandeconomicstoexplainwhypeopleoftenmakeirrationalfinancialdecisions.Unliketraditionaleconomictheory,whichassumesindividualsalwaysactintheirbestinterest,behavioraleconomicsidentifiescognitivebiasesthatinfluencemarkettrendsandpersonalsavings.Question3:Thediscoveryofpenicillinin1928markedaturningpointinmedicalhistory.AlexanderFleming’saccidentalobservationofamoldkillingbacteriainapetridishledtothedevelopmentofthefirstantibiotic.Thisrevolutionizedmedicine,savingmillionsoflivesandpavingthewayformodernpharmaceuticalresearch.Part3:RepeatSentence(Youwillhearasentence.Pleaserepeatthesentenceexactlyasyouhearit.Youhave15secondstofinish.)Question4:TheuniversitylibrarywillbeclosedforrenovationstartingnextMonday.Question5:Climatechangeposesasignificantthreattocoastalcommunitiesaroundtheworld.Question6:Studentsarerequiredtosubmittheirassignmentsbeforethedeadline.Question7:Thecorrelationbetweendietandhealthhasbeenextensivelystudiedbyscientists.Question8:Economicgrowthintheregionisexpectedtoslowdowninthecomingquarter.Part4:DescribeImage(Lookatthegraphbelow.In25seconds,pleasespeakintothemicrophoneanddescribeindetailwhatthegraphisshowing.Youwillhave40secondstospeak.)Question9:[ImageDescription:Alinegraphshowingthepopulationgrowthofthreespecies(Rabbits,Foxes,andWolves)inacontrolledecosystemovera10-yearperiodfrom2015to2025.TheY-axisrepresentspopulationsize,andtheX-axisrepresentsyears.TheRabbitpopulationfluctuateswildly,peakingat800anddroppingto200.TheFoxpopulationfollowstheRabbitpopulationwithaslightlag.TheWolfpopulationremainsrelativelystableuntil2022,whenitrisessharply.]SampleAnswerStrategy:Thegraphillustratesthepopulationdynamicsofthreespecies—Rabbits,Foxes,andWolves—inacontrolledecosystembetween2015and2025.TheY-axisindicatesthepopulationsize,whiletheX-axisshowsthetimeline.ItisevidentthattheRabbitpopulationexperiencessignificantvolatility,oscillatingbetweenalowof200andapeakof800.Incontrast,theFoxpopulationappearstocorrelatewiththeRabbitpopulation,likelyduetopredator-preyrelationships,thoughwithatimelag.TheWolfpopulationremainsrelativelyconstantforthemajorityoftheperiodbutwitnessesasharpincreasestartingin2022.Thisdatasuggestsacomplexinterdependencewithinthefoodchain.Question10:[ImageDescription:Abarchartcomparingthemarketshareoffivemajorsmartphonecompaniesin2024.CompanyAholds35%,CompanyBholds25%,CompanyCholds20%,CompanyDholds15%,andCompanyEholds5%.ThereisamathematicalformulaannotationatthebottomcalculatingtheHerfindahl-HirschmanIndex(HHI)formarketconcentration:HHI=whereisthemarketshareoffirmSampleAnswerStrategy:Thisbarchartdisplaysthemarketsharedistributionoffiveleadingsmartphonecompaniesfortheyear2024.CompanyAdominatesthemarketwitha35%share,followedbyCompanyBat25%andCompanyCat20%.CompaniesDandEholdsmallerportionsofthemarket,at15%and5%respectively.ThechartalsoincludesaformulafortheHerfindahl-HirschmanIndex,denotedasHHPart5:Re-tellLecture(Youwillhearalecture.Afterlisteningtothelecture,in10seconds,pleasespeakintothemicrophoneandretellwhatyouhavejustheardfromthelectureinyourownwords.Youwillhave40secondstofinish.)Question11:[LectureTranscript]Theconceptof"UrbanHeatIslands"referstourbanareasthataresignificantlywarmerthantheirsurroundingruralareas.Thistemperaturedifferenceisprimarilycausedbyhumanactivities.First,materialscommonlyusedincities,suchasasphaltandconcrete,havehighthermalmassandabsorbsolarradiationduringtheday,releasingitslowlyatnight.Second,thelackofvegetationincitiesreducesthenaturalcoolingeffectofevapotranspiration.Third,wasteheatgeneratedfromvehicles,airconditioningunits,andindustrialmachinerycontributesdirectlytothehighertemperatures.Mitigationstrategiesincludeplantingmoretreestoprovideshadeandinstallinggreenroofsonbuildingstoimproveinsulationandreduceheatabsorption.Question12:[LectureTranscript]Today,wearediscussingthe"ButterflyEffect"withinChaosTheory.ThistermwascoinedbymeteorologistEdwardLorenz.Hediscoveredthattiny,almostimperceptiblechangesininitialconditionsinaweathermodelcouldleadtovastlydifferentoutcomesovertime.Theclassicmetaphoristhattheflapofabutterfly'swingsinBrazilcouldsetoffatornadoinTexas.Thisdoesn'tmeanthebutterflycausesthetornadodirectly,butratherthatcomplexsystemsliketheweatherarehighlysensitivetoinitialdata.Thissensitivitymakeslong-termweatherpredictionincrediblydifficult,aswecannotmeasureeverysinglevariablewithinfiniteprecision.Part6:AnswerShortQuestion(Pleasegiveasimpleandshortanswertothefollowingquestions.Youwillhave10secondstoanswer.)Question13:Whatisthetermforthenaturalprocessbywhichgreenplantsmaketheirownfoodusingsunlight?Answer:PhotosynthesisQuestion14:Ifapolygonhaseightsides,whatisitcalled?Answer:OctagonQuestion15:Whoisthepersoncreditedwithinventingthelightbulb?Answer:ThomasEdisonQuestion16:Whatdowecalladocumentthatofficiallystatesaperson'slastwillandtestamentregardingtheirproperty?Answer:WillQuestion17:Whichorganinthehumanbodyisprimarilyresponsibleforpumpingblood?Answer:HeartPart7:SummarizeWrittenText(Readthepassagebelowandsummarizeitusingonesentence.Typeyourresponseintheboxatthebottomofthescreen.Youhave10minutestofinishthistask.Yourresponsewillbejudgedonthequalityofyourwritingandonhowwellyourresponsepresentsthekeypointsofthepassage.)Question18:TheGreatBarrierReef,locatedoffthecoastofQueensland,Australia,istheworld'slargestcoralreefsystem,composedofover2,900individualreefsand900islands.Itstretchesforover2,300kilometersandcanbeseenfromouterspace.Thisvastecosystemsupportsanextraordinarydiversityoflife,includingnumerousvulnerableorendangeredspecies,someofwhichmaybeendemictothereefsystem.However,thereefisfacingseverethreatsfromclimatechange,specificallyrisingseatemperatureswhichcausecoralbleaching.Pollution,includingagriculturalrunoff,andcrown-of-thornsstarfishoutbreaksalsoposesignificantrisks.Conservationeffortsarecurrentlyunderwaytoimprovethereef'sresilience,focusingonwaterqualityimprovementandreducingcarbonemissionsglobally.Question19:ArtificialIntelligence(AI)hasrapidlyevolvedfromatheoreticalconceptintoapracticaltechnologythatpermeatesvariousaspectsofmodernlife.Machinelearning,asubsetofAI,enablessystemstolearnfromdataandimprovetheirperformanceovertimewithoutbeingexplicitlyprogrammedforeveryspecifictask.Thistechnologyiscurrentlydrivinginnovationsinhealthcare,suchasdiagnosticalgorithms,andintransportation,throughthedevelopmentofautonomousvehicles.However,theriseofAIalsoraisesethicalconcernsregardingprivacy,algorithmicbias,andthepotentialdisplacementofhumanworkers.AsAIcapabilitiesexpand,societymustestablishrobustregulatoryframeworkstoensurethesetechnologiesareusedresponsiblyandforthebenefitofhumanity.Part8:WriteEssay(Writeanessayof200-300wordsonthegiventopic.Youhave20minutestofinishthistask.Youressaywillbejudgedonthequalityofyourwriting,organization,andhowwellyoudevelopyourposition.)Question20:Topic:Inthefuture,robotsandautomationwillreplacehumanworkersinmanyindustries.Dothebenefitsofthistrendoutweighthedrawbacks?Question21:Topic:Somepeoplebelievethatthebestwaytoreducecrimeistogivelongerprisonsentences.Others,however,believethattherearebetteralternativewaystoreducecrime.Discussbothviewsandgiveyouropinion.Section2:ReadingPart1:FillintheBlanks(Reading&Writing)(Inthetextbelow,somewordsaremissing.Dragwordsfromtheboxbelowtotheappropriateplaceinthetext.Toundoachoice,clickthewordagain.)Question22:TheIndustrialRevolutionwasaperiodofmajorindustrializationandinnovationthattookplaceduringthelate1700sandearly1800s.ItbeganinGreatBritainandquicklyspreadthroughouttheworld.Theinventionofthesteamenginewasapivotalmomentthattransformedthemanufacturingprocess.Factoriesnolongerneededtobelocatednearriversforwaterpower;instead,theycouldbebuiltanywhere.Thisledtomassproduction,whichsignificantlyloweredthecostofgoods.However,italsoresultedinpoorworkingconditionsforlaborers,includinglonghoursanddangerousenvironments.Theshiftfromanagrarianeconomytoonedominatedbymachinery[blank]thesocialstructureofthetime.WordList:altered,destroyed,improved,ignored,maintained,stabilized.Question23:VitaminDisessentialformaintaininghealthybonesandteeth.Ithelpsthebodyabsorbcalcium,whichisacriticalmineralforbonehealth.WhilethebodycanproduceVitaminDwhenexposedtosunlight,manypeoplestillsufferfromdeficiencies.Thisisparticularlycommoninregionswithlimitedsunlightorduringthewintermonths.DietarysourcesofVitaminDincludefattyfish,eggyolks,andfortifieddairyproducts.Adeficiencyinthisvitamincanleadtoconditionssuchasricketsinchildrenandosteomalaciainadults.Therefore,itisimportanttomonitorVitaminDlevels,especiallyinvulnerablepopulationsliketheelderlyandthosewithlimitedsun[blank].WordList:exposure,resistance,intake,protection,sensitivity,deficiency.Part2:MultipleChoice,MultipleAnswers(Reading)(Readthetextandanswerthemultiple-choicequestionbyselectingallcorrectresponses.Morethanoneresponsemaybecorrect.)Question24:Theconceptof"FlatEarth"theoryhasseenaresurgenceintheageoftheinternet,despiteoverwhelmingscientificevidencetothecontrary.ProponentsofthetheoryarguethattheEarthisadiscratherthanasphere,oftencitingtheappearanceofthehorizonasproof.TheyclaimthatgravityisanillusioncausedbytheEarthacceleratingupwards.However,thisbeliefisrejectedbythescientificcommunity.Satelliteimagery,thephysicsofplanetarybodies,andtheobservationsoflunareclipsesallconfirmasphericalEarth.ThepersistenceofFlatEarthbeliefsisoftenattributedtoadistrustofauthorityandinstitutions,aswellasamisunderstandingofbasicscientificprinciples.Socialmediaalgorithmsthatprioritizeengagementoveraccuracyhavealsoplayedaroleinspreadingthesepseudoscientificideas.WhichofthefollowingarementionedinthetextasreasonsforthepersistenceofFlatEarthbeliefs?A.TheexistenceofsatelliteimageryprovingtheEarthisround.B.Ageneraldistrustofauthorityandinstitutions.C.Socialmediaalgorithmsfavoringengagement.D.TheaccelerationoftheEarthupwards.E.Amisunderstandingofbasicscientificprinciples.Part3:Re-orderParagraphs(Thetextboxesintheleftpanelhavebeenplacedinarandomorder.Restoretheoriginalorderbydraggingthetextboxesfromtheleftpaneltotherightpanel.)Question25:A.Consequently,thegovernmentimplementedstrictregulationstolimitindustrialemissions.B.Thecitysufferedfromseveresmogandpoorairqualityfordecades.C.Thesemeasuresprovedeffective,andvisibilityimprovedsignificantlywithinfiveyears.D.However,therapidindustrializationofthe1950stookaheavytollontheenvironment.Part4:FillintheBlanks(Reading)(Inthetextbelow,somewordsaremissing.Choosethecorrectwordfromtheoptionsgiventofilltheblank.)Question26:Thestudyoflinguisticsinvolvesanalyzinglanguagestructure,meaning,andcontext.Onekeyareaisphonology,whichdealswiththeorganizationofsoundswithinalanguage.Linguistslookathowsoundsareproducedbythehumanvocalapparatusandhowtheyareperceivedbytheear.Thisisdistinctfromphonetics,whichismoreconcernedwiththephysicalpropertiesofsoundsthemselves.Understandingthese[blank]iscrucialforfieldssuchasspeechtherapyandlanguageteaching.Options:A.conceptsB.distinctionsC.noisesD.languagesQuestion27:DuringtheRenaissance,therewasaprofoundshiftinEuropeanculture.Artistsandthinkersbegantofocusonhumanpotentialandachievementsratherthanpurelydivinematters.ThisperiodsawtheriseoffamousfigureslikeLeonardodaVinciandMichelangelo.Itwasatimeof[blank]creativityandintellectualexploration,layingthegroundworkforthemodernworld.Options:A.limitedB.unprecedentedC.forbiddenD.rigidPart5:MultipleChoice,SingleAnswer(Reading)(Readthetextandanswerthemultiple-choicequestionbyselectingthecorrectresponse.Onlyoneresponseiscorrect.)Question28:Darkmatterisahypotheticalformofmatterthatisthoughttoaccountforapproximately85%ofthematterintheuniverse.Unlikenormalmatter,darkmatterdoesnotinteractwiththeelectromagneticforce,meaningitdoesnotabsorb,reflect,oremitlight,makingitextremelydifficulttodetect.Itsexistenceisinferredfromgravitationaleffectsonvisiblematter,suchasstarsandgalaxies.Scientistsbelievethatdarkmatterplaysacrucialroleintheformationofgalaxies,actingasasortofcosmicgluethatholdsstructurestogether.Withoutthegravitationalinfluenceofdarkmatter,galaxieswouldnothaveenoughmasstoremainintactandwouldflyapart.Whatisthemainreasonscientistsbelievedarkmatterexists?A.Ithasbeenobservedthroughpowerfultelescopes.B.Itemitslightthatcanbedetectedbysensitiveinstruments.C.Itaccountsfor85%ofthevisibleuniverse.D.Ithasobservablegravitationaleffectsongalaxies.Section3:ListeningPart1:SummarizeSpokenText(Youwillhearashortlecture.Writeasummaryofthelectureforafellowstudentwhowasnotpresent.Youshouldwrite50-70words.Youhave10minutestofinishthistask.)Question29:[AudioTranscript]"Goodmorning.Today'slecturefocusesontheeconomicimpactofglobalization.Whileglobalizationhasfacilitatedthemovementofgoods,services,andcapitalacrossborders,leadingtoeconomicgrowthinmanydevelopingnations,ithasalsoresultedinsignificantchallenges.Onemajorissueisthewideninggapbetweentherichandthepoor.Whileskilledworkersindevelopedcountriesoftenbenefitfromglobalmarkets,low-skilledworkersmayfacejoblossesduetooutsourcing.Furthermore,theinterconnectivityofglobalmarketsmeansthateconomiccrisesinoneregioncanquicklyspreadworldwide,causinginstability.Therefore,whileglobalizationoffersopportunitiesforefficiencyandgrowth,itrequiresrobusteconomicpoliciestomanageitsinherentrisksandensureequitabledistributionofbenefits."Part2:MultipleChoice,MultipleAnswers(Listening)(Listentotheaudioandanswerthemultiple-choicequestionbyselectingallcorrectresponses.Morethanoneresponsemaybecorrect.)Question30:[AudioTranscript]"Thelibraryisintroducingseveralnewpoliciesstartingnextmonth.First,theloanperiodforallstandardbookswillbeextendedfromtwoweekstofourweekstogivestudentsmoretimeforresearch.Second,overduefineswillbedoubledtoencouragetimelyreturns.Third,wearelaunchinganewdigitalappthatallowsyoutosearchthecatalogandreservebooksremotely.However,pleasenotethatthequietstudyroomsonthethirdfloorwillbeclosedforrenovationfortheentiremonthofApril."Whatchangesarementionedinthelibraryannouncement?A.Theloanperiodforbooksisincreasing.B.Overduefinesarebeingreduced.C.Anewdigitalappforreservingbooksisbeinglaunched.D.ThelibraryisclosingpermanentlyinApril.E.Quietstudyroomswillbeunavailableforsometime.Part3:FillintheBlanks(Listening)(Youwillheararecording.Typethemissingwordsineachblank.)Question31:[AudioTranscript]"Themigrationpatternsofbirdsarefascinatingandcomplex.Manyspeciestravelthousandsofmileseachyeartoreachtheirbreedinggrounds.Thesejourneysareoftenguidedby[blank1]cues,suchasthepositionofthesunandthestars.Birdsalsouselandmarkslikeriversandmountainstonavigate.However,climatechangeisdisruptingthesepatterns,causingbirdstomigrateearlierorlaterthanusual.Thiscanleadtoamismatchbetweentheirarrivalandtheavailabilityoffoodresources,puttingtheir[blank2]atrisk."Part4:HighlightCorrectSummary(Listening)(Youwillheararecording.Clickthesummarythatbestmatchestherecording.)Question32:[AudioTranscript]"Quantumcomputingisarevolutionarytechnologythatutilizestheprinciplesofquantummechanicstoprocessinformation.Unlikeclassicalcomputersthatusebitstorepresentdataaszerosorones,quantumcomputersusequbits.Qubitscanexistinastateofsuperposition,representingbothzeroandonesimultaneously.Thisallowsquantumcomputerstoperformavastnumberofcalculationsatonce,makingthemincrediblypowerfulforspecifictaskslikecryptographyandcomplexmodeling.However,buildingastablequantumcomputerisextremelydifficultduetothefragilenatureofquantumstates,whichcanbeeasilydisruptedbyenvironmentalfactors."A.Quantumcomputersareeasiertobuildthanclassicalcomputersbecausetheyusesimplebits.B.Quantumcomputingusesqubitsthatcanbeinsuperposition,allowingformassiveparallelprocessing,thoughthetechnologyisfragile.C.Classicalcomputersaresuperiortoquantumcomputersbecausetheycanusesuperpositiontomodelcomplexsystems.D.Themainadvantageofquantumcomputingisthatitisunaffectedbyenvironmentalfactorsandisverystable.Part5:MultipleChoice,SingleAnswer(Listening)(Listentotheaudioandanswerthemultiple-choicequestionbyselectingthecorrectresponse.Onlyoneresponseiscorrect.)Question33:[AudioTranscript]"Inthe19thcentury,thediscoveryofgoldinCaliforniatriggeredamassiveinfluxofprospectorsandsettlersknownastheGoldRush.PeoplefromallovertheworldtraveledtotheWestCoastoftheUnitedStatesinhopesofstrikingitrich.Whileafewindividualsamassedgreatfortunes,themajorityfoundlittletonogold.TheGoldRush,however,hadalastingimpactonthedevelopmentofCalifornia.Itledtotherapidgrowthofcities,thedevelopmentofinfrastructure,andultimately,California'sadmissiontotheUnionasastatein1850."Whatwastheprimarylong-termeffectoftheGoldRushmentionedinthetalk?A.Mostpeoplebecameverywealthy.B.ItcausedadeclineinthepopulationofCalifornia.C.ItacceleratedthedevelopmentandstatehoodofCalifornia.D.Itpreventedtheconstructionofinfrastructure.Part6:SelectMissingWord(Listening)(Youwillheararecording.Attheendoftherecording,thelastwordorgroupofwordshasbeenreplacedbyabeep.Selectthecorrectoptiontocompletetherecording.)Question34:[AudioTranscript]"Theprofessorexplainedthattheexperimentwasdesignedtotestthehypothesisthatsleepdeprivationaffectscognitiveperformance.Theparticipantsweredividedintotwogroups:onegroupsleptforeighthours,whiletheothergroupstayedawakefor24hours.Bothgroupswerethengivenaseriesoflogicpuzzlestosolve.Unsurprisingly,thegroupthathadsleptperformedsignificantlybetter,demonstratingthatrestiscrucialformaintainingmental[BEEP]."A.healthB.agilityC.capacityD.strengthPart7:HighlightIncorrectWords(Listening)(Youwillheararecording.Belowisatranscriptionoftherecording.Somewordsinthetranscriptiondifferfromwhatthespeakersaid.Clickthewordsthataredifferent.)Question35:[AudioTranscript:"Thewatercycle,alsoknownasthehydrologiccycle,describesthecontinuousmovementofwateron,aboveandbelowthesurfaceoftheEarth.Watercanchangestatesamongliquid,vapor,andiceatvariousplacesinthewatercycle.Thecycleinvolvestheevaporationofwaterfromoceansandlakes,condensationintoclouds,precipitation,andrunoffbackintowaterbodies."]TranscriptionText:Thewatercycle,alsoknownasthehydrologiccycle,describesthecontinuousmovementofwateron,aboveandbelowthesurfaceoftheEarth.Watercanchangestatesamongliquid,vapor,andsolidatvariousplacesinthewatercycle.Thecycleinvolvestheevaporationofwaterfromoceansandrivers,condensationintoclouds,precipitation,andrunoffbackintowaterbodies.Part8:WritefromDictation(Youwillhearasentence.Typethesentenceasaccuratelyaspossible.Youwillhave3or4secondstopreparebeforetheaudiostarts.)Question36:[Audio]Thelaboratoryresultsconfirmedtheinitialhypothesisregardingthechemicalreaction.Question37:[Audio]Studentsmustregisterforthecoursebeforethesemesterbegins.Question38:[Audio]Thenovelexploresthemesofidentityandbelonginginamodernsociety.答案与解析Section1:Speaking&WritingPart2:ReadAloud解析：此部分考查流利度、发音和语调。考生需在40秒内读完文本，注意断句自然，遇到专业术语（如"Behavioraleconomics","penicillin"）要发音准确。参考技巧：遇到长难句，按意群停顿，如"Thedevelopmentofrenewableenergysources/iscriticalfor/mitigatingtheeffectsofclimatechange."Part3:RepeatSentence解析：考查短期记忆力和口语复述能力。参考答案：4.TheuniversitylibrarywillbeclosedforrenovationstartingnextMonday.5.Climatechangeposesasignificantthreattocoastalcommunitiesaroundtheworld.6.Studentsarerequiredtosubmittheirassignmentsbeforethedeadline.7.Thecorrelationbetweendietandhealthhasbeenextensivelystudiedbyscientists.8.Economicgrowthintheregionisexpectedtoslowdowninthecomingquarter.Part4:DescribeImage解析：考生需在40秒内描述图片内容。应包含：引入句、总体趋势、具体数据对比（最高值、最低值）、结论。参考答案（Question9）：ThelinegraphillustratesthepopulationdynamicsofRabbits,Foxes,andWolvesoveradecade.TheRabbitpopulationfluctuatessignificantly,peakingat800.TheFoxpopulationfollowsasimilarpatternwithalag.TheWolfpopulationremainsstableuntil2022,afterwhichitrisessharply.Thisindicatesapredator-preyrelationshipwithintheecosystem.Part5:Re-tellLecture解析：考查听力理解和口语复述。需记录关键词，如"UrbanHeatIslands"（热岛效应）、"asphalt/concrete"（沥青/混凝土）、"vegetation"（植被）、"mitigation"（缓解）。参考答案（Question11）：ThelecturediscussestheUrbanHeatIslandsphenomenon,wherecitiesarewarmerthanruralareas.Thisisduetomaterialslikeasphaltabsorbingheat,lackofvegetation,andwasteheatfrommachinery.Tomitigatethis,thespeakersuggestsplantingtreesandinstallinggreenroofs.Part6:AnswerShortQuestion解析：简短回答，直接给出核心名词即可。答案：13.Photosynthesis14.Octagon15.ThomasEdison16.Will17.HeartPart7:SummarizeWrittenText解析：需用一句话概括全文，包含关键词，字数控制在5-75字之间。参考答案（Question18）：AlthoughtheGreatBarrierReefisavastecosystemsupportingdiverselife,itfacesseverethreatsfromclimatechange,pollution,andstarfishoutbreaks,necessitatingglobalconservationeffortstoensureitssurvival.参考答案（Question19）：ArtificialIntelligencedrivesinnovationacrossvarioussectorsthroughmachinelearning,butitsrapidexpansionalsoraisese