完整版高考历年英语阅读理解科普知识类-豆柴文库

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高考历年英语阅读理解—科普知识类
Eversincetheywerefirstputonthemarketintheearly1990s,genticallymondified(GM,转基因)foodshavebeenincreasinglydevelopedandmarketedinmanycountriesintheword,mainlyonthebasisoftheirpromisetoendtheworldwidefoodcrisis.ButcanGMtechnologysolveworldhungerproblems?Evenifitwould,isitthebestsolutiorr?
Despitewhatitpromiises,GMtechnologyactuallyhasnotincreasedtheproductionpotentialofanycorp.Infact
StudiesshowthatthemostcrownGMcroo.
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
C.byexampleD.byprocess
58.Whatdoestheunderlinedword“boost”inthethirdparagraphprobablymean?【D】
A.Control.B.EvaluateC.Obtain.D.Increase.
59.GMcompaniespromisefarmersthattheywillbenefitfrom_________.【B】
A.practicing“green”farmingB.useoflesschemicals
C.fairdistributionoftheircropsD.usingmorecropsforfu