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1、1PLANETEARTH011ATTENB0R0UGH:Ahundredyearsago,therewereone-and-a-halfbillionpeopleonEarth.2Now,oversixbillioncrowdourfragileplanet.3Butevenso,therearestillplacesbarelytouchedbyhumanity.4Thisserieswilltakeyoutothelastwildernessesandshowyoutheplanetanditswildlifeasyouhavenev
2、erseenthembefore.5Imagineourworldwithoutsun.MaleemperorpenguinsarefacingthenearestthatexistsonplanetEarth,winterinAntarctica.6It’scontinuouslydarkandtemperaturesdroptominus70degreescentigrade.7(HEAVYWINDBL0WING)Thepenguinsstaywhenallothercreatureshavefledbecauseeachguards
3、atreasure,asingleeggrestingonthetopofitsfeetandkeptwarmbeneaththedownybulgeofitsstomach.8Thereisnofoodandnowaterforthemandtheywillnotseethesunagainforfourmonths.9Surely,nogreaterordealisfacedbyanyanimal.10AsthesundepartsfromtheAntarctic,itlightenstheskiesinthefarnorth.11I
4、t’sMarch,andlightreturnstothehighArctic,sweepingawayfourmonthsofdarkness.12Apolarbearstirs.Shehasbeeninherdenthewholewinter.13Heremergencemarksthebeginningofspring.14Aftermonthsofconfinementunderground,shetoboggansdowntheslope,perhapstocleanherfur,perhapsforsheerjoy.15Her
5、cubsgazeoutattheirbrightnewworldfortheveryfirsttime.16Thefemalecallsthem,butthissteepslopeisnottheeasiestplacetotakeyourfirststeps.17(WHIMPERING)Buttheyarehungryandeagertoreachtheirmother,who’sdelayedfeedingthemonthisspecialday.218Nowsheluresthemwiththepromiseofmilk,theon
6、lyfoodthecubshaveknownsincetheywereborn,deafandblind,beneaththesnowsometwomonthsago.19Theirmotherhasnoteatenforfivemonthsandhaslosthalfherbodyweight.20Nowsheconvertsthelastofherfatreservesintomilkforhercubs.21Thespringsunbringswarmth,butalsoaproblemforthemother.22Itstarts
7、tomelttheseaice.Thatiswhereshehuntsforthesealssheneedstofeedhercubsandshemustgettherebeforetheicebreaksup.23Fornow,though,it’sstillminus30degrees,andthecubsmusthavetheshelteroftheden.24It’ssixdayssincethebearsemergedandspringisadvancingrapidly.25Butevennow,blizzardscanstr
8、ikewithoutwarning.26Beingsosmall,thecubsareeasilychilledandtheywouldbemorecomfortablerestinginth
