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英语高中高一下册七选五模拟试题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.Weallhavetomakedecisionsallthetime,andwehaveanabundanceofchoices,rangingfromtinyissuestovitalones.Unfortunately,peopleoftenfindithardtomakedecisions.___6___Ifyouwouldliketoimproveyourskillofdecisionmaking,herearefoursuggestionsforyou.Don'texpecttohaveitall.___7___Youcan'tordereverydeliciousdishonthemenu.Andtherewillbepathsnottaken,careersnotchosen,tonameafew.Youcanimaginesome“whatif"situationsifyoumust,butdonotletthemtakeuptoomuchspaceinyourbrain.___8___It'softengoodtothinkthroughyourdecisions.Butdon'toverdoit.Researchcanreachapointwhere