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1、智课网TOEFL备考资料托福TPO阅读文字版下载[试题答案讲解译文]摘要:托福TPO阅读文字版内容包含1-34tpo全套内容,答案、译文全部由小马过河的专家们认真校对,最终汇总成了一套托福tpo阅读文字版,今天就将这套精华内容分享给大家。本文托福tpo阅读文字版不仅包含有答案和译文及讲解,为了便于大家了解托福阅读解题思路,托福tpo阅读文字版覆盖了最全面的阅读解题逻辑,并以可见形式展示给大家详细的内容,下面我们来学习下本文的内容吧!注意:由于托福TPO听力文本内容较多,我们不能在这里一一为大家做详细介绍,一下部分内容仅供大家参考,想要
2、获取完整版,可点击在下线下载。托福tpo阅读文字版part1SwimmingMachinesTunas,mackerels,andbillfishes(marlins,sailfishes,andswordfish)swimcontinuously.Feeding,courtship,reproduction,andeven"rest"arecarriedoutwhileinconstantmotion.Asaresult,practicallyeveryaspectofthebodyformandfunctionoftheseswimmi
3、ng"machines"isadaptedtoenhancetheirabilitytoswim.Manyoftheadaptationsofthesefishesservetoreducewaterresistance(drag).Interestinglyenough,severalofthesehydrodynamicadaptationsresemblefeaturesdesignedtoimprovetheaerodynamicsofhigh-speedaircraft.Thoughhumanengineersarenewtoth
4、egame,tunasandtheirrelativesevolvedtheir"high-tech"designslongago.Tunas,mackerels,andbillfisheshavemadestreamliningintoanartform.Theirbodiesaresleekandcompact.Thebodyshapesoftunas,infact,arenearlyidealfromanengineeringpointofview.Mostspecieslackscalesovermostofthebody,maki
5、ngitsmoothandslippery.Theeyeslieflushwiththebodyanddonotprotrudeatall.Theyarealsocoveredwithaslick,transparentlidthatreducesdrag.Thefinsarestiff,smooth,andnarrow,qualitiesthatalsohelpcutdrag.Whennotinuse,thefinsaretuckedintospecialgroovesordepressionssothattheylieflushwith
6、thebodyanddonotbreakupitssmoothcontours.Airplanesretracttheirlandinggearwhileinflightforthesamereason.Tunas,mackerels,andbillfisheshaveevenmoresophisticatedadaptationsthanthesetoimprovetheirhydrodynamics.Thelongbillofmarlins,sailfishes,andswordfishprobablyhelpsthemslipthro
7、ughthewater.Manysupersonicaircrafthaveasimilarneedleatthenose.......托福tpo阅读文字版part1参考译文:游泳机器金枪鱼,鲭鱼,和长嘴鱼(或者说成是枪鱼、旗鱼和箭鱼)的游动从不停止。它们的进食,求偶,繁殖,甚至“休息”都在不断的运动中进行。事实上,这些游泳“机器”身体结构的每个部位及其功能都有利于它们更好地游行。为了减少在水中前行的阻力,这类鱼身上产生了很多适应性变化。非常有趣的是,人类为了降低空气阻力加快高速飞机运行速度所进行的设计和这些鱼的适应性变化非常相似。这种设计
8、只是人类工程师的初步尝试,但金枪鱼和他们的同类们已经拥有这种“高科技”设计很久很久。金枪鱼、鲭鱼和长嘴鱼的流线体型简直就是一件工艺品。他们的身体光滑而坚实。从工程师的角度来看,金