2020新译林版必修三全册课文及翻译1Unit1ReadingTheAmazonrainforest:anaturaltreasure亚马孙雨林：大自然的宝藏Welcometothejungle,ahugeseaofgreenalivewiththesoundsofanimals.ThisistheAmazonrainforest.Asthelargestrainforestintheworld,itplaysasignificantroleinmaintainingthefinebalanceoftheEarth'secosystem.欢迎来到丛林，这是一片绿色的海洋，处处可闻各种动物的声音。这里是亚马孙雨林。作为世界上最大的雨林，它在维系地球生态系统的微妙平衡上扮演着举足轻重的角色。TheAmazonrainforestcrossesintoeightcountries,includingBrazilandPeru,andoneoverseasregionofFrance,allontheSouthAmericancontinent.Withanareaofaround6millionsquarekilometres,theAmazonrainforestismorethanhalfthesizeofChina.TheAmazonRiver,fromwhichtherainforestgetsitsname,iscloseto6,400kilometresinlength-roughly100kilometreslongerthantheYangtzeRiver.Onitsjourneyfromthemountainstotheocean,theriversupportsmanydifferentecosystems.TheygivethisareatherichestbiodiversityontheEarth:oneintenknownspeciesintheworldcanbefoundhere.亚马孙雨林穿过包括巴西、秘鲁在内的八个国家，以及一块法国的海外领地，都位于南美洲大陆。亚马孙雨林的面积约为600万平方千米，比中国国土面积的一半还要大。亚马孙雨林得名于亚马孙河，亚马孙河长约6,400千米，比长江还长大约100千米。这条河从高山流向海洋，沿途维系着多种不同的生态系统。它们赋予这片区域地球上最丰富的生物多样性：全世界十分之一的已知物种，都可以在这里找到。Ofthe390,000plantspeciesknowntous,morethan40,000canbefoundintheAmazon.Thistallandancientbrazilnuttreeproducesnutsthatwecaneat;thesewaterliliesarebigenoughtoliedownon.Theforest'sdifferentlevelssupportanunbelievablevarietyofwildlife.Atthebottom,thereisasystemofrootsbeneaththeground.Abovethatisthemassofleaflitteronthedarkforestfloor.Thenextlevelismadeupofshorterplantswithlargeleaves.Thentherearethetoweringancienthardwoods,andfinallythetopsofthetallesttreesmanymetresabovetheground.Eachleveloftheforestformsitsownlittleworld,hometodifferentkindsoflivingthings.在人类已知的390,000种植物物种中，在亚马孙可以找到40,000多种。这棵高大、古老的巴西坚果树结出的坚果我们可以食用；这些睡莲（叶片）大到可以躺在上面。雨林的不同层次养活的野生动物种类多到难以置信。最底层是地下的根系。往上是阴暗森林地表厚实的落叶层。再往上一层由低矮的阔叶植物组成。然后是高耸、古老的阔叶树，最后是那些离地数米之高的大树的树冠。雨林的每一层都自成一个小世界，成为各种生物的家园。Morethan1,300speciesofbirdsandover400speciesofmammalshideamongthejungle'splantlife.Thisjaguarisoneexample.Ithasayellowish-browncoatwithblackspots.Whileasignificantnumberofjaguarssurvivehere,theyareonlyoneonatleast87species,includingfrogs.Thesefrogs,inturn,feedoninsectswhicheatleavesandfruit.Whenajaguardies,atinyarmyofmicroorganismshelpsbreakdownitsbodyandreturnthenutrientstotheearth.2020新译林版必修三全册课文及翻译21,300多种鸟和400多种哺乳动物藏身于这片丛林的植被中。这只美洲豹就是个例子。它黄棕色的皮毛上遍布着黑点。尽管这里生存着数量可观的美洲豹，但它们仅仅是雨林食物链上的一环。它们捕食的物种至少有87种，其中包括青蛙.相应地，这些青蛙的食物，是以树叶和水果为食的昆虫。美洲豹死后，一小支微生物军队会助力其尸体的分解，让营养素重回土壤之中。TheAmazonrainforestbreatheslifeintotheplanetbyfixingcarbonandproducingover20percentofalltheEarth'soxygen.Thus,itisoftenknownasthe“lungsoftheplanet".Moreover,theAmazonrainforestisatreasurehouseofspeciesthatcanbeusedforfoodormedicine.Yetthereisonemajordangertotheseirreplaceableplantsandanimals:us.Overthepast50...
