小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com练习58阅读理解＋读后续写Ⅰ.阅读理解A2021·浙江卷1月议论文300词★★★★☆Atthestartofthe20thcentury,anAmericanengineernamedJohnElfrethWatkinsmadepredictionsaboutlifetoday.Hispredictionsaboutslowingpopulationgrowth,mobilephonesandincreasingheightwereclosetothemark.Buthewaswronginoneprediction:thateverybodywouldwalk10milesaday.Today,inAustralia,mostchildrenonaveragefall2，000stepsshortofthephysicalactivitytheyneedtoavoidbeingoverweight.Intheearly1970s,40percentofchildrenwalkedtoschool,whilein2010,itwasaslowas15percent.Thedeclineisnotbecausewehaveallbecomelazy.Familiesarepressedfortime,manywithbothparentsworkingtopayfortheirhouse,oftenworkinghoursnotoftheirchoosing,livingincardependentneighborhoodswithlimitedpublictransport.Theothersideofthecoinisequallyadeprivation:forhealthandwellbeing,aswellaslostopportunities(机会)forchildrentogettoknowtheirlocalsurroundings.Andforparentstherearelostopportunitiestowalkandtalkwiththeiryoungscholarabouttheirday.Mostparentswillhaveeagerlyaskedtheirchildabouttheirday,onlytomeetwitha“good”，quicklyfollowedby“I'mhungry”.Thisisalsomyexperienceasamother.Butsomewhereoverthedailywalkmoreaboutmyson'sdaycomesout.Ihearhimmakingsenseoffriendshipanditslimits.Thisistheunexpectedandrareparentalopportunitytohearmore.Manyprimaryschoolssupportwalkingschoolbusroutes(路线),withdaysofregular,parent-accompaniedwalks.Doingjustoneoftheseafewtimesaweekisbetterthannothing.Itcanbetoughtobeginandtakesalittleplanning—runningshoesbythefrontdoor,lunchesmadethenightbefore,umbrellasonrainydaysandhatsonhotones—butit'scertainlyworthtrying.1．WhydoestheauthormentionWatkins'predictionsinthefirstparagraph?A．Tomakecomparisons.B．Tointroducethetopic.C．Tosupportherargument.D．Toprovideexamples.2．WhathascausedthedecreaseinAustralianchildren'sphysicalactivity?A．Plainlaziness.B．Healthproblems.C．Lackoftime.D．Securityconcerns.3．Whydoestheauthorfindwalkingwithhersonworthwhile?A.Shecangetrelaxedafterwork.B．Shecankeepphysicallyfit.C．Shecanhelpwithherson'sstudy.D.Shecanknowhersonbetter.B全国卷Ⅰ说明文307词★★★★☆Asdataandidentitytheftbecomesmoreandmorecommon,themarketisgrowingforbiometric(生物测量)technologies—likefingerprintscans—tokeepothersoutofprivateespaces.Atpresent,thesetechnologiesarestillexpensive,though.ResearchersfromGeorgiaTechsaythattheyhavecomeupwithalowcostdevice(装置)thatgetsaroundthisproblem:asmartkeyboard.Thissmartkeyboardpreciselymeasuresthecadence(节奏)withwhichonetypesandthepressurefingersapplytoeachkey.Thekeyboardcouldoffer小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.comastronglayerofsecuritybyanalyzingthingsliketheforceofauser'stypingandthetimebetweenkeypresses.Thesepatternsareuniquetoeachperson.Thus,thekeyboardcandeterminepeople'sidentities,andbyextension,whethertheyshouldbegivenaccesstothecomputerit'sconnectedto—regardlessofwhethersomeonegetsthepasswordright.Italsodoesn'trequireanewtypeoftechnologythatpeoplearen'talreadyfamiliarwith.Everybodyusesakeyboardandeverybodytypesdifferently.Inastudydescribingthetechnology,theresearchershad100volunteerstypetheword“touch”fourtimesusingthesmartkeyboard.Datacollectedfro...