资源描述：
《考研英语晨读材料》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、Passage1Asisseenfromthetwographs,itisclearthatwiththerapidgrowthofU.S.populationfrom1800to1900,thenumberofwildlifespeciesonthevergeofextinctionisexperiencingasimilartrend.Wecaneasilydrawaconclusionthatthesharpdeclineofwildlifespeciesresultedfromthepopulationgrowth.
2、Ashumanpopulationincreases,thespeciesofwildlifedecline,andsomeareevenonthebrinkofextinction.Wemayciteavarietyofreasonsforthissituation.Butthemostcontributingoneishumanbeing’sweaksenseofwildlifeprotectionwhichleadstothedecreaseofwildlifeasaresultofcasesofillegalhunt
3、ingandkillingofwildlifeforprofits.Besides,thedestructionofecologicalenvironmentalsoplaysapushingrole.Lessandlessforestandpasturecoveragewithmoreandmoresoilerosionduetopopulationproblemmakeitevenmoredifficultforthewildlifetosurvive.Hence,unfortunatelybutnaturallyaso
4、aringnumberofhumanpopulationcomesintandemwithadescendingvarietyofwildlife.Ecologicalenvironmentconstructionandprotectionisapressingandlong-termtask.Totackletheproblemcallsfor,aboveall,thegovernment’seffortstocontrolpopulationgrowthandtoenhancethelawstoforbidwildlif
5、ehunting.Moreover,commoncitizensshouldtakepracticalactionstoprotectwildanimalsaswellasourlivingenvironment.Passage2Aswecanseefromthetwopictures,greatchangeshavetakenplaceintheworldcommercialfishing.In1990therewasonlyoneshipinthesearichinfish,whilein1995,withtheincr
6、easingnumberoffishingships,onlyonefishcouldbefoundintheoceancrowdedwithships.Obviously,theever-deveolpingfishingindustryhadadevastatingeffectonthefishingresource.Thepurposeofthedraweristowarnpeoplethatweshouldsparenoeffortsinprotectingtheresourcesintheseabywellmana
7、gingthedevelopmentofthefishingindustry.Thiskindofprofit-orientedfishingcanonlybringabouttheecologicalunbalance.Inaddition,profit-pursuingmakespeopleexploitotherkindsofnaturalresourcesunlimitedlyandblindlywithoutconsideringthepotentialdamagethatcanbedonetonature,and
8、moreimportant,tohumanbeings.Itisknowntoallthateffectivemeasuresshouldbetakentodealwiththeproblemsofoverexploitationofournaturalresources.Foroneth
