广西柳江中学高一英语七选五专题试卷[002].doc

广西柳江中学高一英语七选五专题试卷U.N.ReportWarnsNatureCrisisAnewU.N.reportfocusesonthenegativeeffectsofhumanactivityonnature.Itsaysonemillionplantandanimalspeciesonland,intheseasandintheskyarenowindangerofextinction.The1,800-pagereporttookthreeyearstofinish.___1___TheEarthhasalwayssufferedfromhumanactivity,itsays.However,thesescratches(划伤)havebecomedeepscars(伤疤)overthepast50years.Speciesaregoingtoextinctseveralhundredtimesfasterthantheaveragerateduringthepasttenmillionyears.It’ssomethingthathasneverhappenedbeforeinhumanhistory.___2___Since1970,thehumanpopulationhasdoubled.Theglobaleconomyhasgrownbyfourtimes.Tofeed,clotheandgiveenergytothisfast-changingworld,lotsofforestshavebeencutdown.___3___Furthermore,hunting,overfishingandpollutionhavealsobeenkillingspeciesingreatnumbers.Theproblemcanbefixed,thereportsays.___4___Theamountoflandandseathatisunderprotectionneedstoincreaserapidly.ThereportsuggestsgovernmentsmoveawayfromusingGDPasakeymeasureofdevelopment.Long-termeffectsmustbeconsidered,too.ProfessorEduardoBrondizioofIndianaUniversityisanauthorofthereport.Hesays,“Weallknowwhatneedstobedone.Theknowledgeisthere.___5___“A．However,thisrequiresmanychanges.B．Over120wildlifespeciesarefacingextinction.C．Onlyexpertsknowhowtoaddresstheproblem.D．Thereportlistedseveralcausesforthesituation.E．Therejustneedstobeagreaterwilltotakeaction.F．Itdrawsontheworkof450scientistsfromdozensofcountries.G．Between1980and2000,onemillionsquarekilometersoftropical(热带的)forestwerelost.Whetherit’stoimproveyourfitness,healthorenvironment,takingupbicycleridingcanbeoneofthebestdecisionsyouhaveevermade.Savetheplanet____6____.Twentybicyclescanbeparkedinthesamespaceasonecar.Ittakesaround5percentofthematerialsandenergyusedtomakeacartobuildabike,andabikeproduceszeropollution.____7____.Cyclingjust20milesaweekreducesyourriskofheartdiseasetolessthanhalfthatofthosewhotakenoexercise.StudiesfromPurdueUniversityintheUShaveshownthatregularcyclingcancutyourriskofheartdiseaseby50percent.EnjoyhealthyfamilytimeCyclingisanactivitythewhol