BBC经典-《行星地球》英文解说词(全集)Word文档格式.doc
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BBC经典-《行星地球》英文解说词(全集)Word文档格式.doc
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AhundredyearsagotherewereoneandahalfbillionpeopleonEarth.Now,oversixbillioncrowdourfragileplanetEarth.Butevenso,therearestillplacesbarelytouchedbyhumanity.ThisserieswilltaketothelastwildernessesandshowyoutheplanetEarthanditswildlifeasyouhaveneverseenthembefore.Imagineourworldwithoutsun.MaleEmperorpenguinsarefacingthenearestthatexistsonplanetEarthEarth-winterinAntarctica.It'
scontinuouslydarkandtemperaturesdroptominusseventydegreescentigrade.Thepenguinsstaywhenallothercreatureshavefledbecauseeachguardsatreasure:
asingleeggrestedonthetopofitsfeetandkeptwarmbeneaththedownybulgeofitsstomach.Thereisnofoodandnowaterforthem,andtheywillnotseethesunagainforfourmonths.Surelynogreaterordealisfacedbyanyanimal.AsthesundepartsfromtheAntarcticitlightenstheskiesinthefarnorth.It'
sMarchandlightreturnstothehighArctic,sweepingawayfourmonthsofdarkness.Apolarbearstirs.Shehasbeeninherdenthewholewinter.Heremergencemarksthebeginningofspring.Aftermonthsofconfinementundergroundshetoboggansdowntheslope.Perhapstocleanherfur,perhapsforsheerjoy.Hercubsgazeoutoftheirbrightnewworldfortheveryfirsttime.Thefemalecallsthem,butthissteepslopeisnottheeasiestplacetotakeyourfirststeps.Buttheyarehungryandeagertoreachtheirmother,who'
sdelayedfeedingthemonthisspecialday.Nowsheluresthemwiththepromiseofmilk,theonlyfoodthecubshaveknownsincetheywereborndeafandblindbeneaththesnowsometwomonthsago.Theirmotherhasnoteatenforfivemonthsandhaslosthalfherbodyweight.Nowsheconvertsthelastofherfatreservesintomilkforhercubs.Thespringsunbringswarmthbutalsoaproblemforthemother.Itstartstomelttheseaice.Thatiswhereshehuntsforthesealsheneedstofeedhercubs.Andshemustgettherebeforetheicebreaksup.Fornowthoughit'
sstillminusthirtydegreesandthecubsmusthavetheshelteroftheden.It'
ssixdayssincethebearsemergedandspringisadvancingrapidly.Butevennowblizzardscanstrikewithoutwarning.Beingsosmall,thecubsareeasilychilledandtheywillbemorecomfortablerestingintheden.Buttheirmothermustkeepthemoutandactive.She'
sbecomingweakfromhungerandthere'
snofoodonthesenurseryslopes.Theseaicestillholdsfirm,butitwon'
tlastmuchlonger.Day10,andthemotherhasledhercubsamilefromtheden.It'
stimetoputthemtothetest.They'
vegrownenormouslyinconfidence,buttheydon'
thavetheirmother'
ssenseofurgency.Atlastitseemsthatthey'
rereadyfortheirjourneyandthey'
reonlyjustintime,forafewmilesfromthecoasttheiceisalreadysplitting.Nowthemothercanstarthuntingforthesealstheymusthave,butshe'
sleadinghercubsintoadangerousnewworld.Nearlyhalfofallcubsdieintheirfirstyearoutontheice.Summerbrings24hoursofsunlightandthethawingshiftinglandscape.FurthersouththewintersnowshavealmostclearedfromtheArctictundra.NorthernCanada'
swildfrontier.Herenaturestagesoneofhergreatestdramas-EveryyearthreemillioncariboumigrateacrosstheArctictundra.Theimmensityoftheherdcanonlybeproperlyappreciatedfromtheair.Someherdstravelover2,000milesayearinsearchoffreshpastures.Thisisthelongestoverlandmigrationmadebyanyanimal.They'
reconstantlyonthemove.Newborncalveshavetobeupandrunningthedaytheyareborn.Butthevastherdsdonottravelalone.Wolves.Packsofthem,eighttotenstrong,shadowthemigration.Andtheyarehungry.It'
sthenewlyborncalvesthattheyareafter.Runningdirectlyattheherdisaploytogeneratepanic.Theherdbreaksupandnowit'
seasiertotargetanindividual.Inthechaosacalfisseparatedfromitsmother.Thecalfisyoung,butitcanoutrunthewolfifonlyitmanagestokeepitsfooting.Atthisstagetheoddsareeven-eitherthecaribouwillmakeamistakeorafteramilethewolfwillgiveup.Midsummeronthetundraandthesundoesnotset.Attheselatitudesthesun'
sraysareglancingandnotenoughoftheirenergyreachesthegroundtoenabletreestogrow.You'
llneedtotravel500milessouthfromherebeforethatispossible.Thesestuntedshrubsmarkthetreeline-thebeginningoftheborealforest-thetaiga.Theneedle-shapedleavesoftheconifersarevirtuallyinediblesothisforestsupportsverylittleanimallife.It'
sasilentplacewherethesnowisunmarkedbyfootprints.IntheArcticwintersnowformsacontinuousblanketacrosstheland.Butasspringcreepsupfromthesouththetaigaisunveiled.ThisvastforestcirclingtheglobecontainsathirdofallthetreesonEarthandproducessomuchoxygenitchangesthecomp
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