全国版2020版高考英语一轮复习组合练第3练阅读理解七选五练习含解析9
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第3练阅读理解七选五
Ⅰ.阅读理解
A
(2018·陕西西安地区八校联考)
Babbage，borninLondonin1791，wasagreatmathematicalgenius.Hewasanaturalinventor.
Whenhefinishedschool，ter，hegotajobteachingattheuniversity.Whileworkingthere，hedesignedhis“firstdifferenceengine”．Thiswas，basically，ahandoperatedmechanicalcalculator.
Hetooknineyearstobuildapartofthemachine.Thismachinecanmakecomplexmathematica lcalculations.It’sabasicmechanicalcomputer.
Babbagedreamed，however，ofmorecomplicatedmachines.Infact，hedidn’tonlydream; hebegantodesignthem.Theresultwasaseriesof“analyticalengines”whichwereinfactpow erfulcomputers!
Hisdesignscontainedprocessors，controlunits，amemoryandaninput/outputsystem.Thesearethefouressentialpartsofamodernmathematica lcomputer!
Alas!
His“seconddifferenceengine”couldn’tuseelectricitysincethishadn’tyetbecomeaus ablesourceofpower，soBabbagehadtomakedowithmechanicalsystems.Forthisreason，themachinewasbig，complicatedandexpensive.ThoughBabbageproducedcompleteplansforthemachine，hecouldn’tbuildit.Itwastooadvancedforitsage!
Itwasnotuntilalmost160yearslaterthatBabbage’s“seconddifferenceengine”wasf inallymanufactured.ThefirstworkingversionofthismachinewasbuiltbytheScienceMuseum inLondon，fortheBabbagebicentenaryin1991.AsecondmachinewasthenbuiltforanAmericanhightechm illionaire，whoputitintheComputerHistoryMuseum，inCalifornia.
Babbage’sanalyticalengineswouldhaveused“programs”l ikethoseusedinthetextil e(纺织) industrytomakecomplicatedpatterns，buttheywereneverbuilt.Thisbrilliantmathematicianreallywastoofaraheadofhistime! 1．WheredidBabbageplanhis“firstdifferenceengine”？
A．InLondon. B．Athighschool.
C．AtCambridge. D．InScienceMuseum.
2．W hatdoweknowabouthis“seconddifferenceengine”？A．Ittookhimnineyearstobuildit.
B．Itwasfaraheadofitstime.
C．Itsdesigncameoutinhisdreams.
D．Itspowersourcewaselectricity.
3．The“seconddifferenceengine”wasbuilttoworkin1991. A．foranAmericanmillionaire
B．inmemoryofBabbage
C．totestitsabilitytouseelectricity
D．fortextileindustrytomakepatterns
4．Whatcanweinferfromthetext?
A．Babbage’senginesdidn’trunonprograms. B．Textilepatternsareproducedwithprograms. C．Babbagecanbeseenasthefatherofcomputers.
D．Babbage’sanalyticalengineswereneverbuilt.
B
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However，formanyhighschoolstudents，thesegreatactivitiesmaybejustadream.Withplentyofworktodo，theyspendalltheirhoursindoors，strugglingforahighmarkintheirexams.Ofcourse，studyisoneofthemostimportantthingsforteenagers.Butlifeisdefinitelymuchmorethanth