谁能给我一篇有关"Saveourplanet"的演讲稿?要六-查字典问答网
分类选择

来自饶进军的问题

  谁能给我一篇有关"Saveourplanet"的演讲稿?要六年级的水平,最好有中文.

  谁能给我一篇有关"Saveourplanet"的演讲稿?

  要六年级的水平,最好有中文.

1回答
2019-10-04 17:08
我要回答
请先登录
雷鸣

  Thepatient'sconditionisserious.Symptomsaremultiple.Hisbreathisnoxious.Hehasafever,higherthaneverbefore.Effortstobringitdownarenotworking.Poisonhasbeenfoundinbodyfluids.Whensymptomsaretreatedinonearea,morepopupinotherbodyparts.Ifthiswereausualpatient,doctorswouldbeinclinedtodeclarethemultiplesicknessesaschronicandterminal.Notknowingwhatelsetodo,theywouldjusttakestepstomakethepatientascomfortableaspossibleuntiltheendcame.

  HOWEVER,thisisnotahumanpatient.Itisourhome—theearth.Theabovescenariowellillustrateswhatishappeningtoourplanet.Dirtyair,globalwarming,pollutedwaters,andtoxicwastesarejustafewofthemaladiesofourveryillearth.Likethedoctorsmentionedabove,theexpertsareinaquandaryastowhattodo.

  Themediaregularlycallattentiontoearth'spoorhealthwithsuchheadlinesandcaptionsas:"Blastfishingturnsseabedsintokillingfields."A"BillionAsiansCouldBeParchedin24Years.""Fortymilliontonsoftoxictrashayeartradesglobally.""Nearlytwothirdsofthe1,800wellsinJapanarecontaminatedwithpoisons.""OzoneHoleOverAntarcticIsBackandBigger."

  Somepeoplebecomeaccustomedtofrequentnewsofdangertotheenvironment,perhapseventhinking,'Thatisnotofgreatconcernaslongasitdoesnotaffectme.'However,whetherwerealizeitornot,thewholesaledestructionoftheearth'senvironmentaffectsthevastmajorityofpeople.Sincecontaminationofourplanetisnowsopervasive,itlikelyalreadyaffectsmorethanoneaspectofourlives.Thus,allshouldbeconcernedaboutthehealthandpreservationofourhome.Afterall,whereelsewouldwelive?

  Justhowwidespreadistheproblem?Howsickistheearth?Howarepeople'slivesaffected?Letustakealookatjustafewfactorsthathelpustounderstandwhyourearthisnotjustmildlyindisposedbut,instead,seriouslyill.

  THEOCEANS:Largesectionsofoceanareoverfished.AreportbytheUnitedNationsEnvironmentProgrammesaysthat"70percentofmarinefisheriesaresoexploitedthatreproductioncannotorcanjustbarelykeepup."Forexample,populationsofcod,hake,haddock,andflounderintheNorthAtlanticfellbyasmuchas95percentbetween1989and1994.Ifthiscontinues,whatwillitmeanformillionswhodependontheseaasamajorsourceoftheirfood?

  Additionally,eachyearanestimated20millionto40milliontonsofsealifearecaughtandthrownbackintotheocean—usuallywoundedordead.Why?Theyarecaughtalongwithtargetfishbutarenotwanted.

  FORESTS:Deforestationhasmanynegativesidestoit.Lossoftreesresultsinareductionintheearth'scapacitytoabsorbcarbondioxide,andthisissaidtobeacauseofglobalwarming.Certainspeciesofplants,thepotentialsourceoflifesavingmedicines,willdisappear.Nevertheless,forestdestructioncontinuesunabated.Infact,therateofdestructionhasincreasedinrecentyears.Someauthoritiesfeelthatifthispersists,tropicalforestscoulddisappearinabout20years.

  TOXICWASTES:Dumpingofharmfulmaterialsbothonlandandintheseaisaseriousproblemthathasthepotentialforbringinggreatharmtomillions.Radioactivewastes,heavymetals,andby-productsofplasticsareamongelementsthatcancauseabnormalities,sickness,ordeathinhumansandanimals.

  CHEMICALS:Duringthepast100years,closeto100

2019-10-04 17:11:01

最新问答

推荐文章

猜你喜欢

附近的人在看

推荐阅读

拓展阅读

  • 大家都在看
  • 小编推荐
  • 猜你喜欢
  •