新概念第三册课文精读详解VIP免费

新概念第三册课文精读详解P35第七课Lesson9FlyingcatsCatsneverfailtofascinatehumanbeings.Theycanbefriendlyandaffectionatetowardshumans,buttheyleadmysteriouslivesoftheirownaswell.Theyneverbecomesubmissivelikedogsandhorses.Asaresult,humanshavelearnedtorespectfelineindependence.Mostcatsremainsuspiciousofhumansalltheirlives.Oneofthethingsthatfascinatesusmostaboutcatsisthepopularbeliefthattheyhaveninelives.Apparently,thereisagooddealoftruthinthisidea.Acat'sabilitytosurvivefallsisbasedonfact.RecentlytheNewYorkAnimalMedicalCentermadeastudyof132catsoveraperiodoffivemonths.Allthesecatshadoneexperienceincommon:theyhadfallenoffhighbuildings,yetonlyeightofthemdiedfromshockorinjuries.Ofcourse,NewYorkistheidealplaceforsuchaninterestingstudy,becausethereisnoshortageoftallbuildings.Thereareplentyofhigh-risewindowsillstofallfrom!Onecat,Sabrina,fell32storeys,yetonlysufferedfromabrokentooth.'Catsbehavelikewell-trainedparatroopers.'adoctorsaid.Itseemsthatthefurthercatsfall,thelesstheyarelikelytoinjurethemselves.Inalongdrop,theyreachspeedsof60milesanhourandmore.Athighspeeds,fallingcatshavetimetorelax.Theystretchouttheirlegslikeflyingsquirrels.Thisincreasestheirair-resistanceandreducestheshockofimpactwhentheyhittheground猫总能引起人们的极大兴趣。它们可以对人友好，充满柔情。但是，它们又有自己神秘的生活方式。它们从不像狗和马一样变得那么顺从。结果是人们已经学会尊重猫的独立性。在它们的一生中，大多数猫都对人存有戒心。最使我们感兴趣的一件事情就是一种通俗的信念——猫有九条命。显然，这种说法里面包含着许多真实性。猫在跌落时能够大难不死是有事实作为依据的。最近，纽约动物医疗中心对132只猫进行了为期5个月的综合研究。所有这些猫有一个共同的经历：它们都曾从高层建筑上摔下来过，但只有其中的8只猫死于震荡或跌伤。当然，纽约是进行这种有趣的试验的一个理想的地方，因为那里根本不缺乏高楼大厦，有的是高层的窗槛从上往下坠落。有一只叫萨伯瑞的猫从32层楼上掉下来，但只摔断一颗牙。“猫就像训练有素的跳伞队员，”一位医生说。看起来，猫跌落的距离越长，它们就越不会伤害自己。在一个长长的跌落过程中，它们可以达到每小时60里甚至更快的速度。在高速下落中，猫有时间放松自己。它们伸展四肢，就像飞行中的松鼠一样。这样就加大了空气阻力，并减少了它们着地时冲击力带来的震动。Lesson1Apumaatlarge逃遁的美洲狮1一、【Text】课文Pumasarelarge,cat-likeanimalswhicharefoundinAmerica.WhenreportscameintoLondonZoothatawildpumahadbeenspottedforty-fivemilessouthofLondon,theywerenottakenseriously.However,astheevidencebegantoaccumulate,expertsfromtheZoofeltobligedtoinvestigate,forthedescriptionsgivenbypeoplewhoclaimedtohaveseenthepumawereextraordinarilysimilar.Thehuntforthepumabeganinasmallvillagewhereawomanpickingblackberriessaw'alargecat'onlyfiveyardsawayfromher.Itimmediatelyranawaywhenshesawit,andexpertsconfirmedthatapumawillnotattackahumanbeingunlessitiscornered.Thesearchproveddifficult,forthepumawasoftenobservedatoneplaceinthemorningandatanotherplacetwentymilesawayintheevening.Whereveritwent,itleftbehinditatrailofdeaddeerandsmallanimalslikerabbits.Pawprintswereseeninanumberofplacesandpumafurwasfoundclingingtobushes.Severalpeoplecomplainedof'cat-likenoises'atnightandabusinessmanonafishingtripsawthepumaupatree.Theexpertswerenowfullyconvincedthattheanimalwasapuma,butwherehaditcomefrom?Asnopumashadbeenreportedmissingfromanyzoointhecountry,thisonemusthavebeeninthepossessionofaprivatecollectorandsomehowmanagedtoescape.Thehuntwentonforseveralweeks,butthepumawasnotcaugh...