2011年高考英语阅读理解分类汇编之科普知识类

本资料来自于资源最齐全的２１世纪教育网世纪教育网--中国最大型、最专业的中小学教育资源门户网站。版权所有@21世纪教育网2011高考英语阅读理解分类汇编之科普知识类1.（2011·陕西卷）DEversincetheywerefirstputonthemarketintheearly1990s,genticallymondified(GM,转基因)foodshavebeenincreasinglydevelopedandmarketedinmanycountriesintheword,mainlyonthebasisoftheirpromisetoendtheworldwidefoodcrisis.ButcanGMtechnologysolveworldhungerproblems?Evenifitwould,isitthebestsolutiorr?Despitewhatitpromiises,GMtechnologyactuallyhasnotincreasedtheproductionpotentialofanycorp.InfactStudiesshowthatthemostcrownGMcroo.GMsoybeans,hassufferedreducedproductivity.Forinstance,areportthananalysednearlytwodecadesofresearchonmojorGMfoodcropsshowsthatGMengineeringhasfailedtosignificantlyincreaseUScropproduction.Somethingelse,however,hasbeenontherise,WhileGMseedsareexpensive,GMcompanicstellfarmersthattheywillmakegoodprofitsbysavingmoneyonpesticides（杀虫剂）.Onthecontrary,USgovernmentdatashowthatGMcropsintheUShaveproducedanoverallincreaseinpesticideusecomparedtotraditionalcrops.“Thepromisewasthatyoucoulduselesschemicalsandboostproduction.Butnetheristrue,”saidBillChristison,PresidentoftheUSNationalFarmCoalition.Atthesametime,theauthorsofthebookWorldHunger:TwelveMythsarguethatthereactuallyismorethanenoughfoodintheworldandthatthehungercrisisisnotcausedbyproduction,butbyproblemsinfooddistributionandpolitics.Theseindeeddeserveoureffortsandmoney.Meanwhile,theriseinfoodpricesresultsfromtheincreaseduseofcropsforfuelratherthanfood,accordingtoa2008WorldBankreport.Asamatteroffact,scientistsseebetterwaystofeedtheworld.AnotherWorldBankreportconcludedthatGMcropshavelittletooffertothechallengesofworldwidepovertyandhunger,becausebetterwaysoutareavailable,amongwhich“green”farmingissupposedtobethefirstchoice.57.Theauthordevelopsthesecondparagraphmainly.【C】A.byclassificationB.bycomparison本资料来自于资源最齐全的２１世纪教育网世纪教育网--中国最大型、最专业的中小学教育资源门户网站。版权所有@21世纪教育网C.byexampleD.byprocess58.Whatdoestheunderlinedword“boost”inthethirdparagraphprobablymean?【D】A.Control.B.EvaluateC.Obtain.D.Increase.59.GMcompaniespromisefarmersthattheywillbenefitfrom______________.【B】A.practicing“green”farmingB.useoflesschemicalsC.fairdistributionoftheircropsD.usingmorecropsforfuel60.WhichofthefollowingbestdescribestheattitudeoftheauthortowardsGMtechnology?【C】A.OptimisticB.DefensiveC.DisapprovingD.Casual2.（2011·重庆卷）CGettingridofdirt,intheopinionofmostpeople,isagoodthing.However,thereisnothingfixedaboutattitudestodirt.Intheearly16thcentury,peoplethoughtthatdirtontheskinwasameanstoblockoutdisease,asmedicalopinionhaditthatwashingoffdirtwithhotwatercouldopenuptheskinandletillsin.Aparticulardangerwasthoughttolieinpublicbaths.By1538,theFrenchkinghadclosedthebathhousesinhiskingdom.SodidthekingofEnglandin1546.ThusbeganalongtimewhentherichandthepoorinEuropelivedwithdirtinafriendlyway.HenryIV,KingofFrance,wasfamouslydirty.Uponlearningthatanoblemanhadtakenabath,thekingorderedthat,toavoidtheattackofdisease,thenoblemanshouldnotgoout.Thoughthebeliefinthemeritofdirtwaslong-lived,dirthasnolongerbeenregardedasaniceneighboreversincethe18thcentury.Scientificallyspeaking,cleaningawaydirtisgoodtohealth.Cleanwatersupplyandhandwashingarepracticalmeansofpreventingdisease.Yet,itseemsthatstandardsofcleanlinesshavemovedbeyondsciencesinceWorldWarⅡ.Advertisementsrepeatedlyselltheidea:clothesneedtobewhiterthanwhite,clothseversofter,surfacestoshine.Hasthehatefordirt,however,gonetoofar?Attitudestodirtstilldifferhugelynowadays.Manyfirst-timeparentsnervouslytrytowarntheirchildrenofftouchingdirt,whichmightberesponsibleforthespreadofdisease.Onthecontrary,MaryRuebush,anAmericanimmunologist(免疫学家)，encourageschildrentoplayinthedirttobuildupastrongimmunesystem.Andthelatterpositionisgainingsomeground.64.ThekingsofFranceandEnglandinthe16thcenturyclosedbathhousesbecause.本资料来自于资源最齐全的２１世纪教育网世纪教育网--中国最大型、最专业的中小学教育资源门户网站。版权所有@21世纪教育网A.theylivedhealthilyinadirtyenvironment.B.theythoughtbathhousesweretoodirtytostayinC.theybelieveddiseasecouldbespreadinpublicbathsD.theyconsideredbathingasthecauseofskindisease65.WhichofthefollowingbestdescribesHenryIV’sattitudetobathing?A.Afraid.B.Curious.C.Approving.D.Uninterested.66.Howdoesthepassagemainlydevelop?A.Byprovidingexamples.B.Bymakingcomparisons.C.Byfollowingtheorderoftime.D.Byfollowingtheorderofimportance.67.Whatistheauthor’spurposeinwritingthepassage?A.Tostresstheroleofdirt.B.Tointroducethehistoryofdirt.C.Tocallattentiontothedangerofdirt.D.Topresentthechangeofviewsondirt.【答案】CACD3.（2011·湖南卷）CArecentstudyofancientandmodernelephantshascomeupwiththeunexpectedconclusionthattheAfricanelephantisdividedintotwodistinct(不同的)speciesThediscoverywasmadebyresearchersatYorkandHarvarduniversitieswhentheywereexaminingthegeneticrelationshipbetweentheancientwoollymammothandmastodontomodernelephants—theAsianelephant,AfricanforestelephantandAfricansavannaelephantOncetheyobtainedDNAsequences(序列)fromtwofossils(化石)，mammothsandmastodonstheteamcomparedthemwithDNAfrommodernelephants.TheyfoundtotheiramazementthatmodernforestandsavannaelephantsareasdistinctfromeachotherasAsiane