关于地球的英语作文.doc

关于地球的英语作文 Theareaofdesertintheworldisgrowingeveryyear.Manypartsoftheworldwhichoncehadlargepopulationsandproducedplentyofcrops,havebeedeserts.DunhuanginChina,deepintheheartoftheGebiDesert,wasonceagreatcity. Cattleareonecauseoftheproblem.Ingoodyears,famersincreasethenumbersoftheircattle.Thenoneyear,therainsfailtoe.Thefarmersdonotwanttokillanyoftheircattle,sothecattleeatailthegrassandanythingthatgrowsonpoorerland.Ifthiscontinuesforseveralyears,thegrassnevergrowsagainandthelandbeesadesert.Onesuggestedanswerisforfarmerstolimitthenumbersoftheircattle. Anotherproblemisthatgoodsoilisgraduallylost.Whentreesarecutdown,thereisnothingtoholdthesoilinplaceonthehillside.Sowhenifrains,thesoiliswasheddownthehillsandintotherivers.Strongwindscanalsoblowawaythevaluablesoilthatliesonthetopofthefields. 地球本是多方位包罗万象的但作者从地球的沙漠化方面考虑列举了造成此情况的原因暗示人类要注意这个严重的问题 这是一篇很好的原因结果式文章先陈述结果后列举原因 地球 世界上沙漠的面积每年都在扩大许多地区曾经人口众多五谷丰登而今却成了沙漠中国的敦煌曾经是一个大城市而现在却深深陷入戈壁滩的腹地 造成戈壁滩的原因之一是牲畜问题年景好时农民就增加牲畜饲养的头数后来有一年天没有下雨农民又不想把牲畜杀掉因此牲畜就把草和更加贫瘠的土地上所长的任何东西全都吃光这种情况如果继续几年那么草就再也长不出来了土地也就变成了沙漠有人提出的解决办法是让农民限制饲养牲畜的数量 另外一个问题就是沃土逐渐流失树木被砍伐了山坡上就没有什么东西能够把土壤保持住了因此下雨的时候土壤从山上被冲刷下来流到河里去了大风也可能把田地表面的肥沃土壤刮走 EarthHourstartedinAustraliawithmillionsofhomesandbusinessesturningtheirlightsoffforonehour.Nowithasgrowntobeeoneoftheworldsbiggestclimatechangeinitiatives.Peoplearealljoiningtogetherinaglobalefforttoshowthatitspossibletotakeactiononglobalwarming. EarthHourhasbroughtaboutsomenewchangestoourlives.TheiconicBirdsNestNationalStadiumandthenearbyWaterCubeNationalAquaticsCenter,usuallyilluminatedbyfloodlights,wentdarkat8:30p.m.,whiledozensofhotels,officebuildings,shoppingmallsandrestaurantsalsoswitchedsomelightsoff.Peoplejoinactivitiessuchascandlelitdinnersandstargazingpartiesasaresponsetothecallforgoingdark.However,somecriticshavedismissedtheeventassimplyagimmickthatwillnotmakeanydifference. Frommypointofview,EarthHourisaglobalcalltoactiontoeveryindividual,everybusinessandeverymunity.Acalltostandup,totakeresponsibilityandtogetinvolvedinworkingtowardsasustainablefuture.EarthHourisamessageofhopeandamessageofaction.Everyonecanmakeadifference. Topic: Environmentalproblemsareasbigasnotforindividualcountryorindividualpeopletoaddress.Inotherword,wehavereachedthestagethatenvironmentalproblemsbesolvedforinternationalview.Towhatextentdoyouagreeordisagree? Inrecentyears,manynationshavebeemoreawareoftheenvironmentalissueseachnationfaces,suchasairandwaterpollution.Thequestionis,aretheenvironmentalissuesanationalproblemoraninternationalproblem?Itismybeliefthattheenvironmentalissueshavegrowntothepointofbeinganinternationalproblemneedinginternationalcooperationtoresolve. Becauseofthedifferencesinenvironmentalpolicies,resourcesandtechnology,internationalcooperationcouldprovidequickerresultsandhaveagreaterimpactonbringingresolutiontoenvironmentalproblemsfornationsofdifferingenvironmentalpoliciesandoflesserresourcesandtechnology.Bypoolinginternationalresourcesandtechnologytoaddresstheenvironmentalproblems,thedisadvantagednationsareprovidedtheassistanceneeded.Otherwisetheirenvironmentalconditionsdeteriorateultimatelyaffectingtheresourcesandenvironmentoftheworldasawhole. Oneofthedifficulitiestoaninternationalresolutiontoenvironmentalissuesisthedifferenceinindividualnationsviewandpoliciestowardenvironmentalprotection.Inorderforinternationalcooperationtooccurandsucceed,thenationsoftheworldmustsubmitthemselvedtointernationalstandardsandsupervisionbyaninternationalmissionelectedbytheparticipatingnationsoftheworld.Allmembersmustagreetoabidebythestandardsestablished. Theenvironmentalissuesfacingeachcountryarenotunrelatedtothewellbeingoftherestoftheworld.Theimpactislongtermandinternationalinscope.WithoutinternationalcooperationandagreementtoaddresssuchenvironmentalissuesasglacialmeltingattheSouthPole,depletionoftheozonelayer,waterpollution,airpolution,etc.,theenvironmentalconditionsoftheworldwilldeterioratetothedetrimentofeverynation,notjustthosethatignoreorlacktheresourcesandtechnologytoresolvetheirindividualenvironmentalproblems. Aspartofthe