资源描述:
《星火2011年12月四级模拟卷1》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、PARTIWriting[30MIN]writeashortessayentitledMyViewonCyberLanguage.1.网络语言越来越流行2不同的人有不同的看法3我认为……MyViewonCyberLanguagePARTIIReadingComprehension[SkimmingandScanning][15MIN]TheGlobalFoodCrisisandThomasMalthusLastyeartheskyrocketingcostoffoodwasawake-upcallfortheplanet.Between2005andthesummerof2008,th
2、epriceofwheatandcorntripled,andthepriceofriceclimbedfivefold,spurringfoodriotsinnearlytwodozencountriesandpushing75millionmorepeopleintopoverty.Butunlikepreviousshocksdrivenbyshort-termfoodshortages,thispricespikecameinayearwhentheworld'sfarmersreapedarecordgraintrop.Thistime,thehighpriceswereas
3、ymptomofalargerproblemtuggingatthestrandsofourworldwidefoodweb,onethat'snotgoingawayanytimesoon.Simplyput:formostofthepastdecade,theworldhasbeenconsumingmorefoodthanithasbeenproducing.Afteryearsofdrawingdownstockpiles,in2007theworldhasseenglobalcarryoverstocksfallto61daysofglobalconsumption,thes
4、econdlowestonrecord.”Agriculturalproductivitygrowthisonlyonetotwopercentayear",warnedJoachimvonBraun,directorgeneraloftheInternationalFoodPolityResearchInstituteinWashington,D.C.,attheheightofthecrisis."Thisistoolowtomeetpopulationgrowthandincreaseddemand:'Rebrospectian:Malthus'TheoryEversinceou
5、rancestorsgaveuphuntingandgatheringforplowingandplantingsome12,000yearsago,ournumbershavemarchedcorrespondingwithouragriculturalproductivityEachadvance--thedomesticationofanimals,irrigation,andwetriceproduction--ledtoacorrespondingjumpinhumanpopulation.Everytimefoodwasstatelysupplied,populatione
6、ventuallyleveledoff.EarlyArabandChinesewritersnotedtherelationshipbetweenpopulationandfoodresources,butitwasn’tuntiltheendofthe18thCenturythataBritishscholartriedtoexplaintheexactmechanismlinkingthetwo--andbecameperhapsthemastvilified(遭人辱骂的〕socialscientistinhistory.ThomasRobertMalthus,thenamesak
7、eofsuchtermsas"Malthusiancollapse"and"Malthusiancurse",wasamild-manneredmathematician,aclergyman-and,hiscriticswouldsay,theultimateglass-half-emptykindofguy.WhenafewEnlightenmentphilosophers,giddyfromthesuccessoftheFrenchRev