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Unit5Into theWildThe MonarchsJourneyMany animalsmove fromone place to anotherat certaintimes of the year.This annualmovementis calledmigration.They migrateto findfood,seek apartner,or insearch ofwarmer weather.One of themost wonderfulmigrations innature is that ofthe NorthAmerican monarchbutterfly.Every autumn,millions ofthese beautifulinsects withfine blackand orangewings begina longanddifficult journey.Somehow theymanage totravel around4,000kilometres southand findtheir way toCalifornia orMexico.However,until recentlyno oneknew howthey didthis.A teamof scientistsled byProfessor EliShlizerman at the Universityof Washingtonhas nowfoundthe answer.They havefound outthat themonarch is able totell the time of day.It usesits eyestomeasure theposition ofthe sun.These twopieces ofinformation—thetimeofday and thepoint wherethesun is in thesky—allow thebutterfly todetermine thewaytogo.Eventually,it managesto reachtheplaces whereit willspend thewinter.The solutionto themystery ofthe monarchsamazing abilitycomes ata time when itisinserioustrouble.Its population has crashedby asmuch as90per centin thelast fewyears.Sadly,human activityisthe mainreason whythe numberof monarchbutterflies isfalling.In manyoftheplaces wherethebutterfly canbe found,people aredestroying thenatural environment.They cutdown trees and usechemicalsthat killthe plantsthat monarchcaterpillars eat.The researchon themonarchs behaviourhas howeverled toa greaterawareness ofthis creature.People havebeen workingtogether torecord itsmigration andmake surethat thereare enoughplants foritto feedon.If thisworks,there maycome atimewhenthe numberof monarchbutterflies increasesonceagain.The morewe knowabout thislovely creature,the greaterthe chanceit willsurvive andkeepits placein thenatural worldfor along timeto come.An Encounterwith NatureAsa naturephotographer,I have to bravethe elements.But despitethe windand therain,I stillenjoyworking outsidein thewild.One ofthe bestthings aboutthis jobisthatyou canobserve animalsintheir naturalenvironment.My favouriteplacetotake photosis YellowstoneNational Park.As theworlds firstnational park,Yellowstone isfamous for the varietyof itswildlife,but itis probablybest knownfor itsbears.Thesehuge,strong animalscan livefor30years.Despite aweight ofup to300kilograms,they canrun ataspeed ofaround64kilometres perhour andare alsoexcellent swimmers.Last springin Yellowstone,I followeda paththat tookme througha darkforest.When Ifinallystepped outofthetrees,the viewwas breathtaking.An eagleflew overthe snow-capped mountains,which werereflected inthe stilllake below.While I was concentratingon photographingthis amazingscene,I suddenlyhad afeeling thatIwasbeing watched.Slowly,and withthe camerastill heldto myeye,I turned...and froze.Only metersaway fromme wasa bear.With waterfalling offits thick,brownhair,the bearstared backat me.Time stoodstill asthe bearand Iboth waitedto seewho wouldmovefirst.My legsstarted shaking.Somehow,I forcedmy fingerto pressthe button.A secondlater,the bearturnedand ranback intothe forest.When Irecovered from the shock,I lookedat mycamera.My mostfrighteningbut magicalexperience wasnow capturedforever ina singleimage.From timeto timeI lookat thephoto asa reminderto showrespect toall animals.It isafter allwewho arethe visitorsto theirworld.A DAYIN THECLOUDSThe airis thinand wehavetorest severaltimes onthe shorthike fromcamp.To ourleft,snow-covered mountainsdisappear intoclouds thatseem almostclose enoughto touch.On theplain infrontof us,we canjust makeout aherd ofgraceful animals.This iswhy werehere toobserve Tibetan一antelopes.Tibetan antelopeslive onthe plainsof Tibet,Xinjiang,and Qinghai.Watching themmove slowlyacrossthe greengrass.Tm struckby theirbeauty.Tm alsoreminded ofthe dangerthey arein.They arebeinghunted,illegally,for theirvaluable fur.My guideis Zhaxi,a villagefrom Changtang.He worksattheChangtang NationalNature Reserve.The reserveisashelter forthe animalsand plantsof northwesternTibet.To Zhaxi,the landis sacredandprotecting thewildlife isa wayof life.We^e nottrying to save theanimals/9he says.Actually,weretrying tosave ourselves.The1980sand1990s werebad timesforthe Tibetan antelope.The populationdropped bymorethan50percent.Hunters wereshooting antelopesto makeprofits.Their habitatswere becomingsmalleras newroads andrailways werebuilt.In ordertosavethis speciesfrom extinction,the Chinesegovernment placedit undernationalprotection.Zhaxi and other volunteerswatched overthe antelopesdayandnight tokeep themsafe fromattacks.Bridges andgates wereadded tolet theantelopes moveeasily andkeep themsafe fromcars andtrains.The measureswere effective.The antelopepopulationhasrecovered andin June2015,theTibetan antelopewas removedfromtheendangered specieslist.The government,however,does notintendto stopthe protectionprogrammes,since thethreats totheTibetanantelope havenot yetdisappeared.In theevening,I drinka cupof teaand watchthe stars.I thinkabout theantelopes andwhat Zhaxitoldme.Much isbeing doneto protectwildlife,but ifwe reallywant tosave theplanet,we mustchangeour wayof life.Only whenwe learnto existin harmonywith naturecan westop beinga threatto wildlifeandto our planet.Give Uglya Chance!When itcomes towildlife protection,all species-the good,the bad,and theugly-should betreatedequally.Pandas,dolphins,andothercute wildlifeare important,but wemust payattention toless cuteanimals,too.The worldneeds allkinds——without variety,ourplanetcannot survive.So ifyou wantthefuture tobe beautiful,you haveto giveugly achance.写作假设你是李华,你校国际部所有交换生将开展主题为“野生动物保护”的交流会,你将作为学生代表发言,请写一篇发言稿,内容包括.保护野生动物的重要性;
1.保护措施;2其他
3.注意写作词数应为左右;
1.80,可以适当增加细节,以使行文连贯2Dear fellowstudents,Thank youfor yourattention!。
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