2019高考英语三轮冲刺大题提分大题精做4阅读理解说明文含解析

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1、阅读理解说明文A.【2018年全国卷Ⅰ】Wemaythinkwe'reaculturethatgetsridofourworntechnologyatthefirstsightofsomethingshinyandnew,butanewstudyshowsthatwekeepusingourolddevices(装置)wellaftertheygooutofstyle.That’sbadnewsfortheenvironment—andourwallets—astheseoutdateddevicesconsumemuchmoreenergy

2、thantheneweronesthatdothesamethings.Tofigureouthowmuchpowerthesedevicesareusing,CallieBabbittandhercolleaguesattheRochesterInstituteofTechnologyinNewYorktrackedtheenvironmentalcostsforeachproductthroughoutitslife—fromwhenitsmineralsareminedtowhenwestopusingthedevice.Thismet

3、hodprovidedareadoutforhowhomeenergyusehasevolvedsincetheearly1990s.Devicesweregroupedbygeneration.Desktopputers,basicmobilephones,andbox-setTVsdefined1992.Digitalcamerasarrivedonthescenein1997.AndMP3players,smartphones,andLCDTVsenteredhomesin2002,beforetabletsande-readerssh

4、owedupin2007.Asweaccumulatedmoredevices,however,wedidn'tthrowoutouroldones.“Theliving-roomtelevisionisreplacedandgetsplantedinthekids’room,andsuddenlyoneday,youhaveaTVineveryroomofthehouse,”saidoneresearcher.Theaveragenumberofelectronicdevicesrosefromfourperhouseholdin1992t

5、o13in2007.We’renotjustkeepingtheseolddevices—wecontinuetousethem.AccordingtotheanalysisofBabbitt'steam,olddesktopmonitorsandboxTVswithcathoderaytubesaretheworstdeviceswiththeirenergyconsumptionandcontributiontogreenhousegasemissions（排放）morethandoublingduringthe1992to2007win

6、dow.Sowhat'sthesolution（解决方案）?Theteam'sdataonlywentupto2007,buttheresearchersalsoexploredwhatwouldhappenifconsumersreplacedoldproductswithnewelectronicsthatservemorethanonefunction,suchasatabletforwordprocessingandTVviewing.Theyfoundthatmoreon-demandentertainmentviewingonta

7、bletsinsteadofTVsanddesktopputerscouldcutenergyconsumptionby44%.1.Whatdoestheauthorthinkofnewdevices?A.Theyareenvironment-friendly.B.Theyarenobetterthantheold.C.Theycostmoretouseathome.D.Theygooutofstylequickly.2.WhydidBabbitt'steamconducttheresearch?A.Toreducethecostofmine

8、rals.B.Totestthelifecycleofaproduct.C.Toupdateconsumersonnewtechnology.D.Tofindout