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ID:35894703
大小:524.50 KB
页数:11页
时间:2019-04-22
《2018版高考英语复习模块考点复习unit9wheels课时规范训练北师大版》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、Unit9WheelsPart1 阅读完形组合准度练 (建议用时40′)Ⅰ.阅读理解(共8小题;每小题2分,满分16分)ACarcompaniessuchasTeslaandNissanhavebeenleadingthewayinelectriccartechnology.Whatmakesthesecars“green”isthatbecausetheyrunonelectricityinsteadofgasoline,theydonotgiveoffanypollutinggreenhousegases.TheToyotaMiraiisalsoakindofgreen
2、car,sinceitispoweredbyahydrogenfuel(氢燃料)battery.Hydrogen,asyouknow,existsinlargequantitiesontheearth.Itwasusedtopowergaslightsforcenturiesbeforeelectriclightscamealong.Hydrogenfuelcanbemadefrommanysourcesincludingwater,naturalgasandevenrubbish.Intermsofenergycontained,9.5kgofhydrogenisequa
3、lto25kgofgasoline.AccordingtoToyota,thetwotanksontheMiraihold5kgofhydrogen,andcancoveradistanceofover300miles.Thisistwicetheoutputofgasolinecars.Inahydrogenfuelbattery,theoneproton(质子)andoneelectroninahydrogenatomarebrokenup.Whiletheelectronspowerthecar,thepositivelychargedhydrogenprotonco
4、mbineswiththeoxygenatomtoproducewater.Theprocessalsoproducesalotofheatwhichturnsthiswaterintowatervapor.Thisisthereasonthatcarsrunningonhydrogenfuelbatteriesgiveoffwatervaporfromtheirexhaustpipeswhenrunning.AccordingtoToyota,ittakesonly5minutestorefillahydrogentank,whichismuchquickerthanch
5、argingelectriccars.However,thebiggestchallengeforthecompanyistheavailabilityofhydrogenchargingstations.CaliforniaandtheNewEnglandstatesareintheprocessofbuildingahydrogensuperhighway—withchargingstationsalongtheway.CountrieslikeGermany,JapanandUKarealsoaddingmorechargingstations.TheToyotaMi
6、raiwillbeavailableintheU.S.inthesecondhalfof2015for$58,000.Thishydrogenfueledcarwillprobablytaketheplaceofgasolinecarsinthenearfuture.Afterall,itisanenergysavingandenvironmentfriendlycar.1.Accordingtothetext,hydrogen.A.canonlybeusedasafuelforcars11B.isanewlydiscoveredenergysourceC.provides
7、moreenergythananequalamountofgasolineD.willsoonbecomethemainfuelformostofToyota'scars2.Thethirdparagraphismainlyabout.A.watervaporandweatherB.howtheToyotaMiraiworksC.differenttypesofbatteriesD.whyhydrogenisverypopular3.WhatcanwelearnabouttheToyotaMirai?A.Itrun
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