關于海豚的英文演講稿（精選4篇）關于海豚的英文演講稿篇1OnedayMr.Green,thescienceteacher,askedhisclass,“Whatdoyouwanttobewhenyougrowup?”“Iwanttobeadolphintrainerlikemyuncle,”Mikeanswered.“Whydoyouwanttobeadolphintrainer?”askedMr.Green.“BecauseI'minterestedindolphinlanguage.”“Dolphinlanguage?Tellusmore.”“Allright,”answeredMike,“Myuncletellsmethatdolphinsareveryclever.Onedaymyunclesawasickdolphininthepool.Itcouldn'tcomeupforair.Soitwhistledtotheotherdolphinsforhelp.Theycametotheirfriendandmadesomestrangesounds.Theylookedsad.Thentogethertheypushedthesickdolphin'sheadupabovethewater.Soonitgotwell.”“Somescientistsoncesaidtomyuncle,'Ifyoulivewithadolphinandtalktoitallday,maybeyoucanteachitsomewords.'Myuncledecidedtodothat.Helivedwithadolphin.Thedolphinlovedtoplayballsohedecidedtoteachtheword'ball'first.Hethrewaballtothedolphinandsaidtheword'ball'manytimes.Soonthedolphinstartedtosaytheword.”Kateasked,“Howdotheymakesounds?”Mikedidn'tknow.“Theymakesoundsthroughblowholesintheirheads,”saidMr.Green.“Scientistsknowalittleaboutdolphinlanguage,buttheyhavealotmoretolearn.”“That'swhyIwanttobeadolphintrainer,”saidMike.關于海豚的英文演講稿篇2Hopefullyyoualreadyknowthatdolphinsarenotfish.Dolphinsarewarmbloodedmammalslikeus.Theybreathairthroughanostrilonthetopoftheirheadscalledablowhole.Becausedolphinsbreathair,theymustsurfaceperiodically.Fish,however,breathbyusinggillsunderwater,andthereforedonotneedtosurface.Manyfishalsohavescales,whichdolphinsdonothave.Instead,theskinofadolphinfeelsrubbery.Alayeroffat,calledblubber,undertheirskinkeepsthemwarm.Thelocomotionoffishanddolphinsisalsodifferent.Fishswimbymovingtheirtailsfromsidetoside(horizontally).However,dolphinsswimbymovingtheirtailsupanddown(vertically).Howmanykindsofdolphinsarethere?Thisquestionwillprobablyneverbeansweredcorrectly.Ashumans,wewanttoputeverythingweknowofintoagroup.Somepeoplelikelargegroupswithsomevariationandotherslikesmall,precisegroups.Noteveryoneagreesaboutwhatmarinedolphinsdeservetheirownspeciesnameandwhatonesdonot.Icurrentlyhave32speciesofmarinedolphinslisted.Iamprettysurethatthiscoversallthespeciesaccurately.MostpeopleagreethattherearesixspeciesofporpoisesandfivespeciesofriverdolphinsDolphinscanunderstandandinterpretsomewordsandactions,theycannotunderstanduswordforwordlikeintheTVshow.Eventhoughdolphinsmaynotunderstanduscompletely,theymighthavetheirownlanguages.Infact,manypeoplebelievethatdolphinscommunicatewithlanguages.關于海豚的英文演講稿篇3DolphinInthevastoceanlivemanycreatureswithgreatintellectualandphysicalcapacities.Dolphinisoneofthosegreatcreatures,whosecapacitiestothinkandmoveatanastoundingratepuzzlethosewhostudytheirbehaviors,Dolphinspossesssomethingthatmakesthemdifferentfromalltheotherseacreatures.Itisnotstrengthorspeedbutthesizeoftheirbrains.Dolphin'sbrainisalmostthesamesizeasthatfoundinthehumanhead.Theyliveforalingtime.Dolphins'babiesareborninthewater.Theycangrowuptothreeandahalfmeterslong.Dolopinsusesoundtohelpthemfindtheirway,lookfortheirfoodandtalkwitheachother.Soundisjustliketheireyesandmouths.關于海豚的英文演講稿篇4Weoftenhearpeoplesay,“Nevergiveup.”Thesecanbeencouragingwordsandwordsofdetermination.Apersonwhobelievesinthemwillkeeptryingtoreachhisgoalnomatterhowmanytimeshefails.Inmyopinion,thequalityofdeterminationtosucceedisanimportantonetohave.Therefore,Ibelievethatweshouldnevergiveup.Onereasonisthatifwegiveuptooeasily,wewillrarelyachieveanything.Itisnotunusualforustofailinourfirstattemptatsomethingnew,soweshouldnotfeeldiscouragedandshouldtryagain.Besides,ifwealwaysgiveupwhenwefail,wewillnotbeabletodevelopnewskillsandgrowaspeople.Anotherreasonweshouldnevergiveupisthatwecanlearnfromourmistakesonlyifwemakeaneweffort.Ifwedonottryagain,thelessonwehavelearnediswasted.Finally,weshouldnevergiveupbecauseasweworktoreachourgoals,wedevelopconfidence,andthisconfidencecanhelpussucceedinotherareasofourlives.Ifweneverchallengeourselves,wewillbegintodoubtourabilities.Inshort,itisimportantt