中学生英语演讲稿：英语演讲稿范文.docx

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1、 中学生英语演讲稿：英语演讲稿范文_适合中学生英语演讲稿 has a very serious problem. not only does have a very serious problem, but our people have a very serious problem. ”s problem is us. africa and conference mon: they were all from was colonizing our people in the . the same one in the , and in southern rhodesia, and in ,

2、and in and in we all have a common enemy, whether he”s in , whether he”s in churches are being bombed, and your little girls are being murdered, and at the same time you”re going to violent with hitler, and tojo, and somebody else that you don”t even know? 学校中学生英语演讲稿中学生英语演讲稿thegreatrace 中学生英语演讲稿theg

3、reatrace 中学生英语演讲稿thegreatracethegreatraceautomakerseedtowardthefuturelastnight,wheniwassurfingonthenet,版权全部，全国工的114!iwasattractedbyaword:hydrogeneconomy.ididntknowwhatitmeant,andmaybemostofyoudidnt,either.soiwentonreadingandfinallygotit.andtoday,ifeelsoluckytotellyousomethingaboutit.andiamgoingtopid

4、emyeechinto4parts.letsbeginourfirstpart.scienceorsciencefiction?iusedtoreadalotofsciencefiction.thefutureofenergyandtraortationweresubjectsclosetomyheart.thelimitlepowerofcoldfusion.thewonderofmatter-antimatterreactors.thechallengeofdilithiumcrystalsandwarpdrive.ialmostbelievedit.iwantedtobelieveit.

5、butasitturout,thefutureofenergyisandalwayshasbeenallaroundus.itisasnaturalaswind,sunlightandwater.scienceovertakessciencefictionandgivesushydrogen!iadmitthatitisterriblyanticlimactic.butthenwemustrealizethatthischangeseverything.eeciallyinenvironmentalprotection.butwhenwillthehydrogeneconomygethere?

6、powerfulmotivationprioritiesarechanging.youonceheardabouttheworldssulyofoilruingout,whichitis.weonceworriedabouttheecologicaleffectsofautomobilepollution.butnow,thebattlecryissecurity.weneedenergysecurityandpowermaderighthereathomeandlotsofit.wonderful,abundant,clean,renewable,sustainablepower.wenee

7、dtobeaboutthetaskoffindingalternativefuelsandenergysources.inthemeantime,weneedtowanourselvesfromdependenceonmid-eastoil,useouroil,useouroilmoreefficientlyand,almostasanafterthought,lowerlevelsofpollutionfromourvehicles.efficiencyandcleanline,whileperhabeingnexttogodline,havelatelytakenabackseattose

8、curity.however,researchanddevelopmenteffortsaremutuallybeneficial.thenextgenerationoffuelwillbebothcleanerandlocallymade.majorautomanufacturersandoilcompanieshaveoftenbeenseenaspartoftheproblem(wecantbuywhattheyrefusetomake).but,fromtheirperective,版权全部，全国工的114!theycantsellwhatwedontwantto 中学生英语演讲稿th

9、egreatrace第2页 buy.tothem,itisourpenchantforgas-guzzlingortsutilityvehiclesthatisdangerous,wastefulandsuddenlyuatriotic.hydrogensourcesandsulyinfrastructurehydrogenisabundant,buttherearesulyproblems.hydrogenisalmostneverfoundinitspureform.itisalreadycombinedwithotherelementstoformwateroranynumberofor

10、ganiccompounds.togetpurehydrogen,youhavetoseparateitfromsomething.inthecaseofwater,theproceiscalledelectrolysis.inhydrocarbonfuels,itiscalledreformation.althoughhydrogenhasbeensuccefullyreformedfromallmajorfuels,industrialalicatioforhydrogentodaygenerallyrelyonreformingitfromnaturalgas.thistechnique

11、canatbestbeashort-termsolutionifthegoalistobeindependentfromfoilfuels.othersourcesofhydrogenincludeglucose,sodiumborohydrideandevenbacterialcomposting.notallofthesewillmakethecut.renewabilityisakeyiue.themoney,timeandefforttoturngtasfillingstatio,hydrogenfillingstatioismindandbudget-boggling.theothe

12、rproblemissulyinfrastructure.themoney,timeandefforttoturngasfillingstatio.thereiscoiderablementalenergygoingintosolvingtheseproblems,buttheywillnotbeso;vedquicklyorcheaply.atleastibelieve. 演讲稿也叫演讲词，它是在较为盛大的仪式上和某些公众场合发表的讲话文稿。 演讲稿是进展演讲的依据，是对演讲内容和形式的标准和提示，它表达着演讲的目的和手段。盼望中学生英语演讲稿：英语演讲稿范文一文能帮忙您解决关于2023“适合中学生英语演讲稿”相关的问题，再次感谢您的阅读！