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1、智课网IELTS备考资料雅思写作:nuclear摘要:今天小编为大家分享一下的雅思写作:nuclear相关内容,分享的主要目的就是想让大家对这方面有一个初步的了解甚至是掌握,如果大家能对此加深认识,想必一定会为您的雅思考试增分不少。写作是雅思考试重要的一部分,下面小马过河小编就为考生们带来一篇有关nuclear的雅思写作范文,考生们可以参考一下写作思路,改善自身写作方式。AdvantagesandDisadvantagesofNuclearEnergyAdvantagesofNuclearEnergyNuclearreactionsr
2、eleaseamilliontimesmoreenergy,ascomparedtohydroorwindenergy.Hence,alargeamountofelectricitycanbegenerated.Presently,approximately10-15%oftheworld'selectricityisgeneratedthroughnuclearenergy.Didyouknowthatonekilogramofuranium-235approximatelyproducesasmuchenergyas1,500to
3、nsofcoal?Thebiggestadvantageofthisenergyisthatgreenhousegasesarenotreleasedduringanuclearreaction.Greenhousegasesareamajorthreatinthecurrentscenario,astheycauseglobalwarmingandclimatechange.Asthereisnoemissionofthesegasesduringnuclearreaction,thereisverylittleeffectonth
4、eenvironment.Theburningoffossilfuelsleadstoproductionofcarbondioxideandsmoke.Itisamenacetotheenvironmentaswellashumanlife.Productionofnuclearenergydoesnotemitsmoke,hence,thereisnodirectairpollution.However,disposalofradioactivewasteisamajorissuetoday.Nuclearreactorsmake
5、useofuraniumasfuel.Fissionreactionofasmallamountofuraniumgeneratesalargeamountofenergy.Currently,thereservesofuraniumfoundontheEarthareexpectedtolastforanother100years.Secondly,usingthisenergycanmakemanynationsenergyindependent,andnotdependentonthoseunearthingfossilfuel
6、s.Withouthumanerrors,accidents,ornaturalcalamities,thenuclearreactorsworkverywellandcangoonforalongtime.Secondly,onceconstructed,theplantrequiresveryfewpeopletooperateit.DisadvantagesofNuclearEnergyAccidentalreleaseofharmfulradiationisoneofthebiggestdrawbacksofnuclearen
7、ergy.Thefissionprocessreleasesradiation,but,iscontrolledinanuclearreactor.Now,ifthesesafetymeasuresfail,theradiationmaycomeincontactwiththeenvironment,resultinginseveredamagetotheecosystemandlossoflife.Althoughtheyproducelargeamountofenergy,nuclearreactorsdependonuraniu
8、m,whichisanexhaustiblefuel.Itsextinctioncanagaincauseagraveproblem.Onceexhausted,thereactorswillbeofnouse,will