2025年托福考試閱讀真題模擬模擬試卷：新能源技術(shù)在核能發(fā)電領(lǐng)域的考試時間：______分鐘總分：______分姓名：______一、選擇題（本部分共40題，每題2分，共80分。請仔細閱讀每篇passage，根據(jù)文章內(nèi)容選擇最合適的答案。）1.Accordingtothepassage,whichofthefollowingistheprimaryadvantageofusingnuclearfusionasanenergysourceinthecontextofnuclearpowergeneration?A.Itproducessignificantlylesswastecomparedtofissionreactors.B.Itismorecost-effectiveduetolowerfuelcosts.C.Iteliminatestheriskofnuclearmeltdowns.D.Itcanbescaledupmoreeasilyforindustrialuse.2.Thepassagementionsthatscientistsareexploringwaystocontainthehightemperaturesrequiredfornuclearfusion.Whatdoesthissuggestaboutthecurrentstateoffusiontechnology?A.Itisalreadycommerciallyviableforwidespreaduse.B.Itstillfacessignificanttechnicalchallenges.C.Ithasbeenabandonedduetoitscomplexity.D.Itisonlyusefulforresearchpurposes.3.Accordingtothepassage,whatisoneofthemainobstaclestoachievingpracticalnuclearfusionpowerplants?A.Thelackofsufficientfundingforresearch.B.Thedifficultyinachievingandmaintainingthenecessarytemperatures.C.Publicoppositiontonuclearpower.D.Thescarcityofsuitablematerialsforreactorconstruction.4.Thepassagediscussesthepotentialbenefitsofnuclearfusioninreducingcarbonemissions.Whatdoesthisimplyabouttheenvironmentalimpactofcurrentnuclearpowergenerationmethods?A.Currentnuclearpowermethodsarehighlyinefficient.B.Currentnuclearpowermethodsproducenegligiblecarbonemissions.C.Currentnuclearpowermethodscontributesignificantlytocarbonemissions.D.Currentnuclearpowermethodsareonlymarginallybetterthanfossilfuels.5.Accordingtothepassage,whatroledomagneticfieldsplayintheprocessofnuclearfusion?A.Theyhelpincoolingthereactor.B.Theyareusedtoinitiatethefusionprocess.C.Theyarenecessaryforcontainingtheplasma.D.Theyhavenopracticalapplicationinfusionreactors.6.Thepassagementionsthatnuclearfusionresearchhasbeenongoingforseveraldecades.Whatdoesthisindicateabouttheprogressoffusiontechnology?A.Ithasmadesteadyandsignificantadvancements.B.Ithasremainedstagnantandunchanged.C.Ithasbeenconsistentlyunsuccessful.D.Ithasonlyseenlimitedprogressduetofundingconstraints.7.Accordingtothepassage,whatisoneofthekeydifferencesbetweennuclearfusionandnuclearfissionintermsofenergyproduction?A.Fusionproducesmoreenergyperunitoffuel.B.Fissionismoreefficientintermsofenergyoutput.C.Fusionissaferduetolowerradiationlevels.D.Fissioniseasiertocontrolinreactors.8.Thepassagediscussestheconceptof"plasmaconfinement"innuclearfusion.Whatdoesthistermimplyaboutthechallengesfacedinfusionresearch?A.Itsuggeststhattheplasmaisdifficulttomaintainathightemperatures.B.Itindicatesthattheplasmaiseasilylostfromthereactor.C.Itimpliesthattheplasmaisharmfultotheenvironment.D.Itsuggeststhattheplasmaisunstableandunpredictable.9.Accordingtothepassage,whatisoneofthepotentialbenefitsofnuclearfusionintermsoffuelavailability?A.Itusesanearlyinexhaustiblesupplyoffuel.B.Itrequiresrareandexpensivematerials.C.Itreliesonalimitedsupplyofradioactivematerials.D.Itisdependentonfossilfuelsources.10.Thepassagementionsthatnuclearfusionhasthepotentialtorevolutionizetheenergyindustry.Whatdoesthissuggestaboutthefutureofenergyproduction?A.Itwillcompletelyreplacefossilfuelsinthenearfuture.B.Itwillonlybeasupplementaryenergysource.C.Itwillsignificantlyalterthecurrentenergylandscape.D.Itwillremainatheoreticalconceptwithnopracticalapplication.11.Accordingtothepassage,whatisoneofthemainsafetyconcernsassociatedwithnuclearfusion?A.Theriskofradiationleaks.B.Thepotentialfornuclearmeltdowns.C.Thedifficultyindisposingofwaste.D.Thehighcostofreactorconstruction.12.Thepassagediscussestheroleofinternationalcollaborationinadvancingnuclearfusionresearch.Whatdoesthisimplyaboutthenatureoffusiontechnology?A.Itistoocomplexforanysinglecountrytodevelopindependently.B.Itisprimarilyamatterofnationalcompetition.C.Itisbestlefttoindividualresearcherswithoutcollaboration.D.Itisalreadywell-understoodanddoesnotrequirefurthercollaboration.13.Accordingtothepassage,whatisoneofthekeyareasoffocusforresearchersworkingonnuclearfusion?A.Developingmoreefficientcoolingsystems.B.Improvingthedesignofmagneticconfinementsystems.C.Reducingthecostoffusionreactors.D.Findingnewapplicationsforfusionenergy.14.Thepassagementionsthatnuclearfusionresearchhasfacedfundingchallengesovertheyears.Whatdoesthissuggestabouttheprogressoffusiontechnology?A.Ithasbeenhinderedbyfinancialconstraints.B.Ithasbeenoverfundedandunnecessary.C.Ithasnotrequiredsignificantfunding.D.Ithasbeenfundedadequatelybutnotutilizedeffectively.15.Accordingtothepassage,whatisoneofthepotentialenvironmentalbenefitsofnuclearfusioncomparedtootherenergysources?A.Itproduceslessairpollution.B.Itismoresustainableinthelongterm.C.Ithasalowercarbonfootprint.D.Itreducestheneedforwaterusage.16.Thepassagediscussestheconceptof"tokamaks"innuclearfusionresearch.Whatdoesthissuggestaboutthecurrentstateoffusiontechnology?A.Itisaprovenandwidelyuseddesign.B.Itisstillexperimentalandnotyetpractical.C.Ithasbeenabandonedduetoitsinefficiency.D.Itisonlytheoreticalandhasnoreal-worldapplication.17.Accordingtothepassage,whatisoneofthemainchallengesinscalingupnuclearfusiontechnologyforcommercialuse?A.Thehighcostofconstruction.B.Thecomplexityofthetechnology.C.Thelackofpublicsupport.D.Thedifficultyinachievingconsistentresults.18.Thepassagementionsthatnuclearfusionhasthepotentialtoprovideavirtuallylimitlessenergysource.Whatdoesthisimplyaboutthefutureofenergyproduction?A.Itwillsolveallenergyneedsfortheforeseeablefuture.B.Itwillbeamajorcontributortotheenergymix.C.Itwillonlybeusefulforspecificapplications.D.Itwillremainatheoreticalconceptwithnopracticalapplication.19.Accordingtothepassage,whatisoneofthekeyfactorsthatcouldacceleratethedevelopmentofnuclearfusiontechnology?A.Increasedgovernmentfunding.B.Moreinternationalcollaboration.C.Publicsupportandacceptance.D.Technologicalbreakthroughsinrelatedfields.20.Thepassagediscussestheroleofprivatecompaniesinadvancingnuclearfusionresearch.Whatdoesthissuggestaboutthefutureoffusiontechnology?A.Itwillbeprimarilydrivenbygovernmentresearch.B.Itwillbenefitfromdiversesourcesoffunding.C.Itwillbelimitedtoacademicinstitutions.D.Itwillnotseesignificantadvancementswithoutgovernmentsupport.21.Accordingtothepassage,whatisoneofthemaindifferencesbetweennuclearfusionandtraditionalthermalpowerplants?A.Fusionplantsaremoreefficientintermsofenergyconversion.B.Fusionplantsrequirelesswaterforcooling.C.Fusionplantsproducemorewaste.D.Fusionplantsaremoreexpensivetobuild.22.Thepassagementionsthatnuclearfusionresearchhasfacedskepticismfromsomequarters.Whatdoesthissuggestaboutthepublicperceptionoffusiontechnology?A.Itiswidelymisunderstoodandmisinterpreted.B.Itisgenerallywell-receivedbythepublic.C.Itisonlysupportedbyscientistsandengineers.D.Itisseenastooriskyandunproven.23.Accordingtothepassage,whatisoneofthepotentialeconomicbenefitsofnuclearfusioncomparedtootherenergysources?A.Itismorecost-effectiveinthelongrun.B.Itrequireslowerinitialinvestment.C.Itismoreprofitableduetohigherenergyoutput.D.Itreducesenergycostsforconsumers.24.Thepassagediscussestheconceptof"quantumcomputing"inrelationtonuclearfusionresearch.Whatdoesthisimplyaboutthefutureoffusiontechnology?A.Itwillbesignificantlyadvancedbyquantumcomputing.B.Itwillnotbenefitfromquantumcomputing.C.Itwillbehinderedbyquantumcomputing.D.Itisunrelatedtothedevelopmentoffusiontechnology.25.Accordingtothepassage,whatisoneofthemainsafetyfeaturesofnuclearfusionreactors?A.Theyaredesignedtopreventradiationleaks.B.Theyhaveautomaticshutdownsystems.C.Theyusematerialsthatarelesspronetoradiationdamage.D.Theyaresmallerandeasiertocontrol.26.Thepassagementionsthatnuclearfusionresearchhasbeensupportedbyvariousgovernmentsaroundtheworld.Whatdoesthissuggestabouttheglobalimportanceoffusiontechnology?A.Itisseenasaprioritybymanynations.B.Itisonlyofinteresttoafewcountries.C.Itisnotconsideredimportantbymostgovernments.D.Itisseenasathreatbysomegovernments.27.Accordingtothepassage,whatisoneofthemainchallengesinachievingstableandsustainednuclearfusionreactions?A.Thedifficultyinachievingthenecessarytemperatures.B.Thecomplexityofthereactioncontrolsystems.C.Thelackofsuitablematerialsforreactorconstruction.D.Thehighcostofmaintainingthereaction.28.Thepassagediscussestheroleof"plasmadiagnostics"innuclearfusionresearch.Whatdoesthissuggestabouttheimportanceofunderstandingplasmabehavior?A.Itiscrucialforensuringthesafetyoffusionreactors.B.Itisonlyrelevantforacademicresearch.C.Ithasnopracticalapplicationinfusiontechnology.D.Itisunnecessaryforachievingfusionreactions.29.Accordingtothepassage,whatisoneofthepotentialbenefitsofnuclearfusionintermsofenergysecurity?A.Itreducesdependenceonimportedfuels.B.Itincreasesthecostofenergyproduction.C.Itmakesenergyproductionmorevolatile.D.Itreliesonalimitedsupplyofradioactivematerials.30.Thepassagementionsthatnuclearfusionresearchhasseensignificantadvancementsinrecentyears.Whatdoesthissuggestaboutthefutureoffusiontechnology?A.Itisrapidlyapproachingcommercialviability.B.Itwillremainatheoreticalconceptfortheforeseeablefuture.C.Ithasreacheditspeakandwillnotseefurtherimprovements.D.Ithasplateauedandwillrequirenewbreakthroughstoadvance.31.Accordingtothepassage,whatisoneofthemaindifferencesbetweennuclearfusionandfossilfuelenergyintermsofenvironmentalimpact?A.Fusionproducesmorepollutants.B.Fusionhasasmallercarbonfootprint.C.Fusionismorewater-intensive.D.Fusionproducesmorewaste.32.Thepassagediscussestheconceptof"neutronactivation"innuclearfusionresearch.Whatdoesthissuggestaboutthematerialsusedinfusionreactors?A.Theyarehighlyresistanttoradiationdamage.B.Theyarepronetobecomingradioactive.C.Theyarenotsuitableforfusionreactions.D.Theyhavenoimpactonthefusionprocess.33.Accordingtothepassage,whatisoneofthemainchallengesinachievingeconomicviabilityfornuclearfusiontechnology?A.Thehighcostofconstruction.B.Thelackofpublicsupport.C.Thecomplexityofthetechnology.D.Thedifficultyinachievingconsistentresults.34.Thepassagementionsthatnuclearfusionresearchhasbeensupportedbyvariousprivatecompanies.Whatdoesthissuggestaboutthecommercialpotentialoffusiontechnology?A.Itisseenasapromisinginvestmentopportunity.B.Itisconsideredtooriskyforcommercialinvestment.C.Itisonlyofinteresttoacademicinstitutions.D.Itisnotseenasviableforcommercialuse.35.Accordingtothepassage,whatisoneofthemaindifferencesbetweennuclearfusionandtraditionalnuclearfissionintermsofwastemanagement?A.Fusionproducesmoreradioactivewaste.B.Fusionwasteismoredifficulttodisposeof.C.Fusionwasteislesshazardous.D.Fusionwasteiseasiertomanage.36.Thepassagediscussestheroleof"magneticconfinement"innuclearfusionresearch.Whatdoesthisimplyaboutthechallengesfacedinfusiontechnology?A.Itisaprovenandwidelyusedmethod.B.Itisstillexperimentalandnotyetpractical.C.Ithasbeenabandonedduetoitsinefficiency.D.Itisonlytheoreticalandhasnoreal-worldapplication.37.Accordingtothepassage,whatisoneofthepotentialbenefitsofnuclearfusionintermsofenergyefficiency?A.Ithasahigherenergyconversionrate.B.Itrequireslessfuelperunitofenergyproduced.C.Itismoreefficientintermsofwaterusage.D.Itproducesmorewasteperunitofenergyproduced.38.Thepassagementionsthatnuclearfusionresearchhasfacedfundingchallengesovertheyears.Whatdoesthissuggestabouttheprogressoffusiontechnology?A.Ithasbeenhinderedbyfinancialconstraints.B.Ithasbeenoverfundedandunnecessary.C.Ithasnotrequiredsignificantfunding.D.Ithasbeenfundedadequatelybutnotutilizedeffectively.39.Accordingtothepassage,whatisoneofthemaindifferencesbetweennuclearfusionandtraditionalthermalpowerplantsintermsofoperation?A.Fusionplantsaremorecomplextooperate.B.Fusionplantsrequirelessmaintenance.C.Fusionplantsaremorereliable.D.Fusionplantsaremoredangeroustooperate.40.Thepassagediscussestheroleof"plasmadiagnostics"innuclearfusionresearch.Whatdoesthissuggestabouttheimportanceofunderstandingplasmabehavior?A.Itiscrucialforensuringthesafetyoffusionreactors.B.Itisonlyrelevantforacademicresearch.C.Ithasnopracticalapplicationinfusiontechnology.D.Itisunnecessaryforachievingfusionreactions.二、填空題（本部分共20題，每題2分，共40分。請根據(jù)文章內(nèi)容填寫空格，每空限填一個單詞。）1.Accordingtothepassage,nuclearfusionisconsideredamore_______energysourcecomparedtonuclearfissionduetoitslowerradiationrisks.2.Thepassagementionsthatscientistsareexploringwaysto_______thehightemperaturesrequiredfornuclearfusion.3.Oneofthemainobstaclestoachievingpracticalnuclearfusionpowerplantsisthe_______ofachievingandmaintainingthenecessarytemperatures.4.Thepassagediscussesthepotentialbenefitsofnuclearfusionin_______carbonemissions,implyingthatcurrentnuclearpowermethodscontributesignificantlytocarbonemissions.5.Magneticfieldsplayacrucialroleinnuclearfusionby_______theplasma.6.Theongoingresearchinnuclearfusionoverseveraldecadesindicatesthattheprogressoffusiontechnologyhasbeen_______andsteady.7.Oneofthekeydifferencesbetweennuclearfusionandnuclearfissionintermsofenergyproductionisthatfusionproducesmoreenergyperunitof_______.8.Theconceptof"plasmaconfinement"innuclearfusionsuggeststhattheplasmaisdifficulttomaintainathigh_______.9.Accordingtothepassage,oneofthepotentialbenefitsofnuclearfusionintermsoffuelavailabilityisitsuseofa_______supplyoffuel.10.Thepassagementionsthatnuclearfusionhasthepotentialto_______theenergyindustry,suggestingthatitwillsignificantlyalterthecurrentenergylandscape.11.Oneofthemainsafetyconcernsassociatedwithnuclearfusionistheriskof_______leaks.12.Thepassagediscussestheroleofinternationalcollaborationinadvancingnuclearfusionresearch,implyingthatfusiontechnologyistoocomplexforanysinglecountrytodevelop_______.13.Oneofthekeyareasoffocusforresearchersworkingonnuclearfusionisimprovingthedesignof_______confinementsystems.14.Thepassagementionsthatnuclearfusionresearchhasfacedfundingchallengesovertheyears,suggestingthatfinancialconstraintshave_______theprogressoffusiontechnology.15.Accordingtothepassage,oneofthepotentialenvironmentalbenefitsofnuclearfusioncomparedtootherenergysourcesisitslower_______footprint.16.Thepassagediscussestheconceptof"tokamaks"innuclearfusionresearch,suggestingthatitisstill_______andnotyetpractical.17.Oneofthemainchallengesinscalingupnuclearfusiontechnologyforcommercialuseisthe_______ofthetechnology.18.Thepassagementionsthatnuclearfusionhasthepotentialtoprovideavirtuallylimitless_______source,implyingthatitwillbeamajorcontributortotheenergymix.19.Oneofthekeyfactorsthatcouldacceleratethedevelopmentofnuclearfusiontechnologyisbreakthroughsinrelated_______.20.Thepassagediscussestheroleofprivatecompaniesinadvancingnuclearfusionresearch,suggestingthatfusiontechnologywillbenefitfrom_______sourcesoffunding.三、閱讀理解（本部分共30題，每題2分，共60分。請仔細閱讀每篇passage，根據(jù)文章內(nèi)容選擇最合適的答案。）21.Accordingtothepassage,whatistheprimaryreasonwhynuclearfusionisconsideredmoreattractivethannuclearfissionforfutureenergyneeds?A.Itproduceslessradioactivewaste.B.Itismorecost-effectiveduetolowerfuelcosts.C.Iteliminatestheriskofnuclearmeltdowns.D.Itcanbescaledupmoreeasilyforindustrialuse.22.Thepassagementionsthatscientistsareworkingonimprovingtheefficiencyofplasmaconfinement.Whatdoesthissuggestaboutthecurrentstateoffusiontechnology?A.Itisalreadycommerciallyviableforwidespreaduse.B.Itstillfacessignificanttechnicalchallenges.C.Ithasbeenabandonedduetoitscomplexity.D.Itisonlyusefulforresearchpurposes.23.Accordingtothepassage,whatisoneofthemainobstaclestoachievingpracticalnuclearfusionpowerplants?A.Thelackofsufficientfundingforresearch.B.Thedifficultyinachievingandmaintainingthenecessarytemperatures.C.Publicoppositiontonuclearpower.D.Thescarcityofsuitablematerialsforreactorconstruction.24.Thepassagediscussesthepotentialbenefitsofnuclearfusioninreducingcarbonemissions.Whatdoesthisimplyabouttheenvironmentalimpactofcurrentnuclearpowergenerationmethods?A.Currentnuclearpowermethodsarehighlyinefficient.B.Currentnuclearpowermethodsproducenegligiblecarbonemissions.C.Currentnuclearpowermethodscontributesignificantlytocarbonemissions.D.Currentnuclearpowermethodsareonlymarginallybetterthanfossilfuels.25.Accordingtothepassage,whatroledomagneticfieldsplayintheprocessofnuclearfusion?A.Theyhelpincoolingthereactor.B.Theyareusedtoinitiatethefusionprocess.C.Theyarenecessaryforcontainingtheplasma.D.Theyhavenopracticalapplicationinfusionreactors.26.Thepassagementionsthatnuclearfusionresearchhasbeenongoingforseveraldecades.Whatdoesthisindicateabouttheprogressoffusiontechnology?A.Ithasmadesteadyandsignificantadvancements.B.Ithasremainedstagnantandunchanged.C.Ithasbeenconsistentlyunsuccessful.D.Ithasonlyseenlimitedprogressduetofundingconstraints.27.Accordingtothepassage,whatisoneofthekeydifferencesbetweennuclearfusionandnuclearfissionintermsofenergyproduction?A.Fusionproducesmoreenergyperunitoffuel.B.Fissionismoreefficientintermsofenergyoutput.C.Fusionissaferduetolowerradiationlevels.D.Fissioniseasiertocontrolinreactors.28.Thepassagediscussestheconceptof"plasmaconfinement"innuclearfusion.Whatdoesthistermimplyaboutthechallengesfacedinfusionresearch?A.Itsuggeststhattheplasmaisdifficulttomaintainathightemperatures.B.Itindicatesthattheplasmaiseasilylostfromthereactor.C.Itimpliesthattheplasmaisharmfultotheenvironment.D.Itsuggeststhattheplasmaisunstableandunpredictable.29.Accordingtothepassage,whatisoneofthepotentialbenefitsofnuclearfusionintermsoffuelavailability?A.Itusesanearlyinexhaustiblesupplyoffuel.B.Itrequiresrareandexpensivematerials.C.Itreliesonalimitedsupplyofradioactivematerials.D.Itisdependentonfossilfuelsources.30.Thepassagementionsthatnuclearfusionhasthepotentialtorevolutionizetheenergyindustry.Whatdoesthissuggestaboutthefutureofenergyproduction?A.Itwillcompletelyreplacefossilfuelsinthenearfuture.B.Itwillonlybeasupplementaryenergysource.C.Itwillsignificantlyalterthecurrentenergylandscape.D.Itwillremainatheoreticalconceptwithnopracticalapplication.31.Accordingtothepassage,whatisoneofthemainsafetyconcernsassociatedwithnuclearfusion?A.Theriskofradiationleaks.B.Thepotentialfornuclearmeltdowns.C.Thedifficultyindisposingofwaste.D.Thehighcostofreactorconstruction.32.Thepassagediscussestheroleofinternationalcollaborationinadvancingnuclearfusionresearch.Whatdoesthisimplyaboutthenatureoffusiontechnology?A.Itistoocomplexforanysinglecountrytodevelopindependently.B.Itisprimarilyamatterofnationalcompetition.C.Itisbestlefttoindividualresearcherswithoutcollaboration.D.Itisalreadywell-understoodanddoesnotrequirefurthercollaboration.33.Accordingtothepassage,whatisoneofthekeyareasoffocusforresearchersworkingonnuclearfusion?A.Developingmoreefficientcoolingsystems.B.Improvingthedesignofmagneticconfinementsystems.C.Reducingthecostoffusionreactors.D.Findingnewapplicationsforfusionenergy.34.Thepassagementionsthatnuclearfusionresearchhasfacedfundingchallengesovertheyears.Whatdoesthissuggestabouttheprogressoffusiontechnology?A.Ithasbeenhinderedbyfinancialconstraints.B.Ithasbeenoverfundedandunnecessary.C.Ithasnotrequiredsignificantfunding.D.Ithasbeenfundedadequatelybutnotutilizedeffectively.35.Accordingtothepassage,whatisoneofthepotentialenvironmentalbenefitsofnuclearfusioncomparedtootherenergysources?A.Itproduceslessairpollution.B.Itismoresustainableinthelongterm.C.Ithasalowercarbonfootprint.D.Itreducestheneedforwaterusage.36.Thepassagediscussestheconceptof"tokamaks"innuclearfusionresearch.Whatdoesthissuggestaboutthecurrentstateoffusiontechnology?A.Itisaprovenandwidelyuseddesign.B.Itisstillexperimentalandnotyetpractical.C.Ithasbeenabandonedduetoitsinefficiency.D.Itisonlytheoreticalandhasnoreal-worldapplication.37.Accordingtothepassage,whatisoneofthemainchallengesinscalingupnuclearfusiontechnologyforcommercialuse?A.Thehighcostofconstruction.B.Thecomplexityofthetechnology.C.Thelackofpublicsupport.D.Thedifficultyinachievingconsistentresults.38.Thepassagementionsthatnuclearfusionhasthepotentialtoprovideavirtuallylimitlessenergysource.Whatdoesthisimplyaboutthefutureofenergyproduction?A.Itwillsolveallenergyneedsfortheforeseeablefuture.B.Itwillbeamajorcontributortotheenergymix.C.Itwillonlybeusefulforspecificapplications.D.Itwillremainatheoreticalconceptwithnopracticalapplication.39.Accordingtothepassage,whatisoneofthekeyfactorsthatcouldacceleratethedevelopmentofnuclearfusiontechnology?A.Increasedgovernmentfunding.B.Moreinternationalcollaboration.C.Publicsupportandacceptance.D.Technologicalbreakthroughsinrelatedfields.40.Thepassagediscussestheroleofprivatecompaniesinadvancingnuclearfusionresearch.Whatdoesthissuggestaboutthefutureoffusiontechnology?A.Itwillbeprimarilydrivenbygovernmentresearch.B.Itwillbenefitfromdiversesourcesoffunding.C.Itwillbelimitedtoacademicinstitutions.D.Itwillnotseesignificantadvancementswithoutgovernmentsupport.四、閱讀理解（本部分共30題，每題2分，共60分。請仔細閱讀每篇passage，根據(jù)文章內(nèi)容選擇最合適的答案。）41.Accordingtothepassage,whatistheprimaryadvantageofusingnuclearfusionasanenergysourceinthecontextofnuclearpowergeneration?A.Itproducessignificantlylesswastecomparedtofissionreactors.B.Itismorecost-effectiveduetolowerfuelcosts.C.Iteliminatestheriskofnuclearmeltdowns.D.Itcanbescaledupmoreeasilyforindustrialuse.42.Thepassagementionsthatscientistsareexploringwaystocontainthehightemperaturesrequiredfornuclearfusion.Whatdoesthissuggestaboutthecurrentstateoffusiontechnology?A.Itisalreadycommerciallyviableforwidespreaduse.B.Itstillfacessignificanttechnicalchallenges.C.Ithasbeenabandonedduetoitscomplexity.D.Itisonlyusefulforresearchpurposes.43.Accordingtothepassage,whatisoneofthemainobstaclestoachievingpracticalnuclearfusionpowerplants?A.Thelackofsufficientfundingforresearch.B.Thedifficultyinachievingandmaintainingthenecessarytemperatures.C.Publicoppositiontonuclearpower.D.Thescarcityofsuitablematerialsforreactorconstruction.44.Thepassagediscussesthepotentialbenefitsofnuclearfusioninreducingcarbonemissions.Whatdoesthisimplyabouttheenvironmentalimpactofcurrentnuclearpowergenerationmethods?A.Currentnuclearpowermethodsarehighlyinefficient.B.Currentnuclearpowermethodsproducenegligiblecarbonemissions.C.Currentnuclearpowermethodscontributesignificantlytocarbonemissions.D.Currentnuclearpowermethodsareonlymarginallybetterthanfossilfuels.45.Accordingtothepassage,whatroledomagneticfieldsplayintheprocessofnuclearfusion?A.Theyhelpincoolingthereactor.B.Theyareusedtoinitiatethefusionprocess.C.Theyarenecessaryforcontainingtheplasma.D.Theyhavenopracticalapplicationinfusionreactors.46.Thepassagementionsthatnuclearfusionresearchhasbeenongoingforseveraldecades.Whatdoesthisindicateabouttheprogressoffusiontechnology?A.Ithasmadesteadyandsignificantadvancements.B.Ithasremainedstagnantandunchanged.C.Ithasbeenconsistentlyunsuccessful.D.Ithasonlyseenlimitedprogressduetofundingconstraints.47.Accordingtothepassage,whatisoneofthekeydifferencesbetweennuclearfusionandnuclearfissionintermsofenergyproduction?A.Fusionproducesmoreenergyperunitoffuel.B.Fissionismoreefficientintermsofenergyoutput.C.Fusionissaferduetolowerradiationlevels.D.Fissioniseasiertocontrolinreactors.48.Thepassagediscussestheconceptof"plasmaco