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1.TypicalofthegrasslanddwellersofthecontinentistheAmericanantelope,orpronghorn.1.美洲羚羊，或称叉角羚，是该大陆典型的草原动物。2.OfthemillionswhosawHaley'scometin1986,howmanypeoplewilllivelongenoughtoseeitreturninthe21stcentury.2.1986年看见哈雷慧星的千百万人当中，有多少人能够长寿到足以目睹它在二十一世纪的回归呢？3.Anthropologistshavediscoveredthatfear,happiness,sadness,andsurpriseareuniversallyreflectedinfacialexpressions.3.人类学家们已经发现，恐惧，快乐，悲伤和惊奇都会形之于色，这在全人类是共通的。4.Becauseofitsirritatingeffectonhumans,theuseofphenolasageneralantiseptichasbeenlargelydiscontinued.4.由于苯酚对人体带有刺激性作用，它基本上已不再被当作常用的防腐剂了。5.Ingrouptoremaininexistence,aprofit-makingorganisationmust,inthelongrun,producesomethingconsumersconsiderusefulordesirable.5.任何盈利组织若要生存，最终都必须生产出消费者可用或需要的产品。6.Thegreaterthepopulationthereisinalocality;thegreatertheneedthereisforwater,transportation,anddisposalofrefuse.6.一个地方的人口越多，其对水，交通和垃圾处理的需求就会越大。7.Itismoredifficulttowritesimply,directly,andeffectivelythantoemployflowerybutvagueexpressionsthatonlyobscureone'smeaning.7.简明，直接，有力的写作难于花哨，含混而意义模糊的表达。8.Withmodernofficesbecomingmoremechanized,designersareattemptingtopersonalizethemwithwarmer,lesssevereinteriors.8.随着现代办公室的日益自动化，设计师们正试图利用较为温暖而不太严肃的内部装饰来使其具有亲切感。9.Thedifferencebetweenlibelandslanderisthatlibelisprintedwhileslanderisspoken.9.诽谤和流言的区别在于前者是书面的，而后者是口头的。10.Thekneeisthejointswherethethighbonemeetsthelargeboneofthelowerleg.10.膝盖是大腿骨和小腿胫的连接处。11.Acidsarechemicalcompoundsthat,inwatersolution,haveasharptaste,acorrosiveactiononmetals,andtheabilitytoturncertainbluevegetabledyesred.11.酸是一种化合物，它在溶于水时具有强烈的气味和对金属的腐蚀性，并且能够使某些蓝色植物染料变红。12.BillieHoliday'sreputationasagreatjazz-bluessingerrestsonherabilitytogiveemotionaldepthtohersongs.12.BillieHoliday作为一个爵士布鲁斯乐杰出歌手的名声建立在能够赋予歌曲感情深度的能力。13.Essentially,atheoryisanabstract,symbolicrepresentationofwhatisconceivedtobereality.13.理论在本质上是对认识了的现实的一种抽象和符号化的表达。14.Longbeforechildrenareabletospeakorunderstandalanguage,theycommunicatethroughfacialexpressionsandbymakingnoises.14.儿童在能说或能听懂语言之前，很久就会通过面部表情和靠发出噪声来与人交流了。15.Thankstomodernirrigation,cropsnowgrowabundantlyinareaswhereoncenothingbutcactiandsagebrushcouldlive.15.受当代灌溉(技术设施)之赐，农作物在原来只有仙人掌和荞属科植物才能生存的地方旺盛的生长。16.Thedevelopmentofmechanicaltimepiecesspurredthesearchformoreaccuratesundialswithwhichtoregulatethem.16.机械计时器的发展促使人们寻求更精确的日晷，以便校准机械计时器。17.Anthropologyisascienceinthatanthropologistsusearigoroussetofmethodsandtechniquestodocumentobservationsthatcanbecheckedbyothers.17.人类学是一门科学，因为人类学家采用一整套强有力的方法和技术来记录观测结果，而这样记录下来的观测结果是供他人核查的。18.Fungiareimportantintheprocessofdecay,whichreturnsingredientstothesoil,enhancessoilfertility,anddecomposesanimaldebris.18.真菌在腐化过程中十分重要，而腐化过程将化学物质回馈于土壤，提高其肥力，并分解动物粪便。19.Whenitisstruck,atuningforkproducesanalmostpuretone,retainingitspitchoveralongperiodoftime.19.音叉被敲击时，产生几乎纯质的音调，其音量经久不衰。20.AlthoughpecansaremostplentifulinthesoutheasternpartoftheUnitedStates,theyarefoundasfarnorthasOhioandIllinois.20.虽然美洲山河桃树最集中于美国的东南部但是在北至俄亥俄州及伊利诺州也能看见它们。21.Eliminatingproblemsbytransferringtheblametoothersisoftencalledscape-goating.21.用怪罪别人的办法来解决问题通常被称为寻找替罪羊。22.Thechieffoodseateninanycountrydependlargelyonwhatgrowsbestinitsclimateandsoil.22.一个国家的主要食物是什么，大体取决于什么作物在其天气和土壤条件下生长得最好。23.Overaverylargenumberoftrials,theprobabilityofanevent'soccurringisequaltotheprobabilitythatitwillnotoccur.23.在大量的实验中，某一事件发生的几率等于它不发生的几率。24.Mostsubstancecontractwhentheyfreezesothatthedensityofasubstance'ssolidishigherthanthedensityofitsliquid.24.大多数物质遇冷收缩，所以他们的密度在固态时高于液态。25.Themechanismbywhichbraincellsstorememoriesisnotclearlyunderstood.25.大脑细胞储存记忆的机理并不为人明白。26.Bythemiddleofthetwentiethcentury,paintersandsculptorsintheUnitedStateshadbeguntoexertagreatworldwideinfluenceoverart.26.到了二十一世纪中叶，美国画家和雕塑家开始在世界范围内对艺术产生重大影响。27.IntheeasternpartofNewJerseyliesthecityofElizabeth,amajorshippingandmanufacturingcenter.27.伊丽莎白市，一个重要的航运和制造业中心，坐落于新泽西州的东部。28.ElizabethBlackwell,thefirstwomanmedicaldoctorintheUnitedStates,foundedtheNewYorkInfirmary,aninstitutionthathasalwayshadacompletelyfemalemedicalstaff.28.ElizabethBlackwell，美国第一个女医生，创建了员工一直为女性纽约诊所。29.AlexanderGrahamBelloncetoldhisfamilythathewouldratherberememberedasateacherofthedeafthanastheinventorofthetelephone.29.AlexanderGrahamBell曾告诉家人，他更愿意让后人记住他是聋子的老师，而非电话的发明者。30.Becauseitsleavesremaingreenlongafterbeingpicked,rosemarybecameassociatedwiththeideaofremembrance.30.采摘下的迷迭香树叶常绿不衰，因此人们把迷迭香树与怀念联系在一起。31.Althoughapparentlyrigid,bonesexhibitadegreeofelasticitythatenablestheskeletontowithstandconsiderableimpact.31.骨头看起来是脆硬的，但它也有一定的弹性，使得骨骼能够承受相当的打击。32.ThatxenoncouldnotFORMchemicalcompoundswasoncebelievedbyscientists.32.科学家曾相信：氙气是不能形成化合物的。33.Researchintothedynamicsofstormsisdirectedtowardimprovingtheabilitytopredicttheseeventsandthustominimizedamageandavoidlossoflife.33.对风暴动力学的研究是为了提高风暴预测从而减少损失，避免人员伤亡。34.Theeliminationofinflationwouldensurethattheamountofmoneyusedinrepayingaloanwouldhavethesamevalueastheamountofmoneyborrowed.34.消除通货膨胀应确保还贷的钱应与所贷款的价值相同。35.Futurism,anearlytwentieth-centurymovementinart,rejectedalltraditionsandattemptedtoglorifycontemporarylifebyemphasizingthemachineandmotion.35.未来主义，二十世纪早期的一个艺术思潮。拒绝一切传统，试图通过强调机械和动态来美化生活。36.Oneofthe