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1、2019年高考英语大一轮复习Unit5Music课时作业新人教版必修2Ⅰ.阅读理解ABatteriesareincluded,butthecharger’snot.TheNokiaE-Cuconceptphonedoesn’tneedtoplugin;itchargesfromanyheatsource.DesignerPatrickHylandsaysitcanevenworkoffthewarmthofyourpocket.Thefirsttime“itwouldtakeapproximatelysevenhourstore
2、achfullcharge,thenafterthatit’scontinuouslychargingbykeepingthephoneinareasbetween86degreesand104degreesFahrenheit.”That’sonehotpocket.He’sputathermogenerator(热偶发电器)insidethephonethattransformsheatintoelectricpotentialenergy.Tobetterconducttheheattothatlittlepowerpla
3、ntinyourpocket,theE-Cu(Eforenergy,Cuforcopper)iscoatedbycopperbackingwithheatsinkslikethosenormallyusedtokeepelectronicsfromoverheating.Nokiadoesn’thavecurrentplanstobuildthephone,sofornowitremainsaconcept.ButHylandsayshe’sopentoanyonewhowantstocooperate.ForAmericans
4、thistechnologywouldcertainlybeconvenient.Itwouldalsosaveabitonenergybillsandwaste.“Annually,unwantedphonechargersproduce51,000tonsofwasteinadditiontothegreenhousegasescreatedbytheproductionoftheelectricityneededtochargethem,”Hylandsays.Soacharger-freephoneisalsoagree
5、nphone.Thoughadaptingourplug-inhabitswouldhelpagroupofpeople,mostcellphonerelatedenergyuseesfromleavingyourchargerpluggedinalldayunnecessarily.Therealpotentialforcharger-freecellphonetechnologyiswhatitcouldenableplaceswhereplugginginisn’tanoption,likeruralareasinthed
6、evelopingworld.Cellphonesarespreadingfasterthanpowerlinesandbringingwiththemcountlessopportunities,aidandhealthadvances.AphoneliketheE-Cu,ifiteverestobe,wouldenableallmannerofexpandedaidanddevelopmentbyphoneprojects.Let’shopePatrickfindsapartner.【文章大意】本文介绍的是一种不用插入电源、
7、在口袋里即可获得电能的手机。1.WhatdoweknowabouttheE-Cuphone?A.Itdoesn’thaveabatteryoracharger.B.Itisproperlymarketedandsellswell.C.It’scontinuouslychargingfromanyarea.D.Ithasahighlyconductivecoppercover.【解析】选D。细节理解题。根据第二段“...theE-Cu(Eforenergy,Cuforcopper)iscoatedbycopperbackingwi
8、thheatsinkslikethosenormallyusedtokeepelectronicsfromoverheating.”可知,这种手机有一个铜制的后盖,可以防止电器过热,所以有一个导热性很强的盖子。2.What’sthefunctionoftheun
