研究生英语期末考试课后选择题整理

analysisrevealsthatmanyoftheecosystemsaresimplythegrade.A.doingwellenoughB.progressingC.functioningD.movingintherightdirection统根本没有达到标准D.朝着正确的方向前进。2.Nearlytwo-ecosystems,water,pureair,andstableclimate,areedbyunsustainableuse.A.preventedB.markedc.determinedD.madeworse2.近三分之二的地球生命支持生态系统，包括清洁水。纯净的空气和稳定的气候正在被不可持续的使用所破坏。3.Theyexaminedtheplanet'sspeciesandthesystemsthatbindthemtogether.A.regionsB.dwellingplacesC.sheltersD.refugesbcd4.Onlybyvaluingallourpreciousnaturalandhumanresources,canwehopetobuildfuture.A.prosperousB.diverseC.livableD.lasting4.只有珍惜我们所有宝贵的自然资源和人力资源，我们才能希望建设可持续发展的未来…bC.多样化的宜居的持久。5.Perhaps10to30percentofEarth'smammal,bird,andamphibianspeciesareA.threatB.emergenceC.urgencyD.dyingout5.地球上大约10%到30%的哺乳动物、鸟类和两栖动物都是如此面临灭绝。6.TheMillenniumEcosystemAssessmentgivesus,insomewaysforthefirsttime,aninsightintotheeconomicimportanceofecosystemservicesandsomenewandforrespectingandconservingtheEarth'slife-supportsystems.A.promotingB.emphasisingC.protectingD.imposing6.千年生态系统评估在某些方面第一次给了我们，生态系统服务的经济重要性和一些新的见解以及其他关于尊重和保护地球生命维持系统的论点系统..7.Deforestationandotherradicalecosystempromotediseases,suchasmalariaandcholera,aswellasnewexistingcontagions.A.speciesB.transmittablediseasesC.destructionsD.degradation7.森林砍伐和其他生态系统的根本改变也会导致疾病，例如疟疾和霍乱，以及现有传染病的新菌株。8.Changestowatersystemsmayincreasethefrequencyanddestructivefloods.A.extensiveness.B.expansionC.expenditureD.seriousness8.水系统的变化可能会增加的频率和严重性破坏性的洪水。9.Manyshouldberegardedasmorevaluablethanthosealteredforcommercialuse.A.previousB.priorC.untappedD.former9.许多完整的生态系统应该被认为比那些更有价值为商业用途而改变…10.Citingwetlandwildlifehabitat,waterperstorage,andrecreationalvalue,thereportappraisedintactThaimangrovesatathousandU.Sdollarsperacre(0.4hectare).A.estimationB.removalD.extinctionD.inspection10.列举了湿地野生动物栖息地、水污染过滤、蓄水等传统娱乐价值。该报告评估了保存完好的泰国红树林。每英亩(0.4公顷).ADBDDCBDCB1.Thehumidityoftheatmosphere,theandthepresenceofstreams,lakes,andsoilmoistureareimportanttoplants.A.rainB.lightC.soilD.airplantsmanufacturefoodstuffsinsunlight--aprocessknownasphotosynthesis.A.haveB.produceC.benefitD.consumeinfluencesseedsandtheproductionofblossoms.A.shapeB.arrangementC.developmentD.quality4.Tosecureamaximumamountofsunlight,theleavesontheverticalshootsarearrangedA.inacommonplaneB.incurvesC.inhorizontalorder5Thelightunderproportiontothedepth.A.weakensB.strengthensC.disappearsD.shines水下的光随深度的增加而减少。6.Intropicalforeststhetreegrowthishatsunlightmayneverreachtheground.A.abusiveB.abundantC.thinD.close6.在热带森林里，树木的生长非常茂盛，阳光可能永远也照不到到达地面。epiphytesgrowonupperlimbsoftreesandonpoles.Theirrootsaresuspendedinairandtheyabsorbmoistureandgasesfromthehumidatmosphere.A.expandedB.sustainedC.delayedD.hung中吸收水分和气体气氛..cellsofepiphytesarenottheycontainchoropbyllandtheymanufacturetheirownfood.A.paralyticB.parabolicC.dependantD.circular产食物。9.Thoughthelianainthesoil,itcanreachthesunlight.A.fixedB.grownC.foundD.surrounded9.藤本植物虽然扎根于土壤中，但却能接触到阳光。thebudsonahorizontalshootofthesetreesmaybearrangedspirally,theleavescommonlyarrangeacommonplaneoneithersideoftheshoot.A.altemativelyB.selectivelyC.verticallyD.interchangeably的同一平面上交替排列。ABCBABDCAD1.Addaandakeyboard,andthishomeentertainmentsystemwillstartlookingalotlikeapersonalcomputer.A.unwiredB.infraredC.cabledD.unchained1.电脑。2.Ononeestimate,peopleintheUnitedStatesalreadyinteractwithabout150embeddedsystemseveryday,whethertheyknowitornot.A.integrayedB.implantedC.includedD.embroidered2.据估计，美国人已经与大约150人进行了互动嵌入式系统每天都在使用，不管他们是否知道。3.ThesesystenswillinevtbtytakeonmorePC-likecharacteristicsandwillbeabletocommunicateseamlesslywiththeirtrditionalPCcounterparts.A.unseeminglyB.fastC.perfectlyD.badlypc的特性。能够与传统PC对手无缝沟通。4.TheembeddedsystemwillalsobecomeA.uniqueB.unquestionableC.powerfulD.omnipresent5.Asacommunicationstool,theyexceptforafewprimitivee-mailnetworksandbulletin-boardsystems.A.principallyB.mostlyC.fundamentallyD.approximately5.作为一种交流工具，它们基本上没有什么效果，只有少数例外原始的电子邮件网络和布告板系统。PCisfindingitswayntoallkindsofthemfrompassiveappliancesintofarmoresignificantandindispensabletoolsforevery-daylife.A.developingB.adoptingC.modifyingDchanging不可缺少的工具一天的生活。7.ManyofthecoretechnologiesofcomputingareallcontinuingtoadvanceatapacethatmatchesorMoore'sLaw.A.surnassesBoutgrowsC.contradictsD.confirms7.计算的许多核心技术都在继续向前发展符合甚至超过摩尔定律的速度。8.Wearestillalongwayfromaworldintelligentmachines.C.intangibleD.concrete9.Allthiswillleadtoafundamentalchangeincomputers.A.learnB.knowC.identifyD.see10.DecreasingcostswillmakeiteasyforelectronicsmanufacturerstoincludePC-likeintelligenceandconnectivityineventhemostmundanedevices.A.designsB.robotsC.appliancesD.vehiclesost将使电子制造商更容易将其包括在内10.pc的智能和连通性，即使是在最普通的设备上。AACDBDACDC1.AcontroversialstudysuggestedthatnfGMpotatoesmightbetoxictolaboratoryrats.A.varietiesB.brandsC.cropsD.categoriesculminatedinanonthegrowthandimportofGMcropsinEuropeandledtoatradedisputewiththeUS.A.banB.preventionC.temporarystoppingD.restriction了与美国的贸易争端。andregulations(DNAbarcodes)areinplaceforfoodinEuropetomonitorthespreadofGMcrops.A.acessingB.supervisoryC.regulatoryD.certifying播…engineeringallowsthattime-consumingprocesstobeacceleratedandexotictraitsfromunrelatedspeciestobeintroduced.A.foreignB.permenantC.improvedD.advanced5.Itproducesanthatharmlesstopeople.A.potentialityB.harmfulelementC.geneD.integrityplantshavebeenengineeredtoimproveflavor,increasehardnessandtobeallergen-free.A.efficiencyB.deteriorationC.reservationD.storageperiod7.Largenumbersoffieldtrials,carriedoutbytheUKgovernmentandothers,revealoccur.A.alterationB.crossbreedingC.degradatingD.implantation其他eveatypeofTPS,dubbedtheTerminatorsystembyitscritics,isagenetictrickthatmeansGMcropsfailtoA.dormantB.deadC.grownD.productive8.TPS不能产生肥沃的种子。quick-to-matureGMsalmonisendowedwithanearlyA.boostB.energyC.enrichmentD.remedial10.Geneticcropsmayofferthelargestpotentialbenefitstodevelopingnations.A.standardisationB.replacement.ACDABDBDACC.adjustmentD.creationthetheBigBangtheory,however,nolongercouldtheuniversebeconsideredinfinite.A.knowledgeB.understandingC.2.Whatexistedpriortothiseventiscompletelyunknownandisamatterofpurespeculation.A.assumptionB.deductionc.allteration3.TheBigBangactuallyconsistedofanexplosionofspacewithinitselfunlikeanexplosionofabombarethrownoutward.A.powderB.piecesc.metalD.energyar不同炸弹爆炸，碎片向外抛掷。4.Inadditiontotheunderstandingofthevelocityofromasinglepoint,thereisfurtherevidencefortheBigBang.A.emacipatingB.producingC.emittingD.speeding4.除了对星系的速度的理解外单从一点来看，大爆炸还有进一步的证据。5.n1964,,аRnattempttodetectmicrowavesfromouterdisoveredanoiseofextraterrestrialorigin.A.unconsciouslyB.unknowinglyC.unintentionallyD.involuntarily2.e8010eweWee恶探测到来自外太空的微波，无意中违抗了一声巨响外星起源。microwaveswereremarkablyuniformhomogeneityoftheearlystagesoftheuniverse.A.showedB.suspectedC.couter-arguedD.illuminated7.Thesecalculationsofthepossiblecoolinganddevelopmentoftheuniversejustfractionsofasecondafteritscreation.A.confirmedB.debatedC.unprovedD.agreed7.这些波动验证了之前对可能的冷却和。宇宙的发展在它被创造后的几分之一秒。BigBangtheoryprovidestooneofthemostpressingquestionsofalltime.A.reliableB.feasibleC.defensibleD.susceptible9.Afterfurthercooling,sprotonswouldbeabletocaptureanelectrontocreatecommonhydrogen.A.extraB.overloadC.freeD.uncharged9.在进一步冷却之后，这些多余的质子将能够捕获an电子生成普通氢。10.Asmoreobservationsaremadeandmoreresearchconducted,theBigBangtheorybecomesmorecompleteandourknowledgeoftheoriginsoftheuniversemoresubstantial.A.fundamentalB.insistingC.comprehensiveD.extensive10.的起源对宇宙更大..DACCAABistheknowledgeasocietyhasthatcanbeappliedtomakingimplementsortocollectingmaterials.A.complementB.supplementC.improvementD.toolssocietycanrejectDDTandofdestroyinginsectpests.AchangingB.similarC.variousD.harmless3.Suchchoicesarenotmadebecauseofavailabletechnology,theyaremadebecausesocietyperceivesatechnologicalchoice.A.receivesB.realizesC.apprehendsD.makes4.Evenclosertoourownsociety,suchmajorassteamengines,airships,andthefirstplasticsweremadeonthebasisoflittleornounderstandingoftheirworkings.A.inventionsB.creationsC.progressD.machines很少或很少的基础上制造出来的不了解他们的工作原理thesimplest