(广东省惠州市2010届高三第一次调研考试)Itisestimatedthatabout10millionpeoplegointocoastalwaterseveryyeartogetacloserlookatwhales.Whentheeco-touriststrytohavealookatthe__21___mammals

　　(广东省惠州市2010届高三第一次调研考试)

　　Itisestimatedthatabout10millionpeoplegointocoastalwaterseveryyeartogetacloserlookatwhales.

　　Whentheeco-touriststrytohavealookatthe__21___mammalsrisingabovethewaterlinekillerwhaleslivesaregreatly__22___thoughtheyarethetopofthefoodchaininthesea.

　　“Wenowhavemorewhale-watchboatsthantherearewhales”saidKelleyBalcombBartokofan__23____inWashingtonStatewhichworkswithscientiststoprotectwhales.

　　Allthisactivityiscausingpeopletoshowmore___24____aboutthewhaleshealthandsurvival.Somescientistssaynoisefromalltheboattrafficmay__25____awhalessonar（声纳，声波）abilityasmuchas95percent.Thewhalesneedsonartofindfood.

　　Therenewstudies__26____thismonthsuggesttheinterferencecausedbythetouristsisdamagingthewhaleswhosepopulationinthePugetSoundregionhas___27___from98to80inlessthanadecade.Scientistsayallthetrafficalsoforcesthewhalestomovearoundmornwastingenergyneededfor___28____food.

　　“Iwouldsaythatattimeswhentherearealotofboatsandthereisalotofnoisetheyareeasily__29____”saidTomMcMillencaptainofthewhale-watchingboatStellarSeawhichtakesouttheregroupsaday.

　　Scientistssaythereislessfoodintheseaforthewhalestoeat:besidesthepopulationintheseaismoreserious.Obviouslythe__30_____fromtheboatsmakethelifeofthewhalesevenworse.

　　21.A.huge B.poisonous C.delicate D.cautions

　　22.A.refreshed B.discovered C.threatened D.witnessed

　　23.A.activity B.organization C.area D.avenue

　　24.A.sympathy Benthusiasm C.excitement D.concern

　　25.A.stop B.decrease C.increase D.improve

　　26.A.released Babandoned C.predicted D.relieved

　　27.A.changed B.sunk C.reduced D.fallen

　　28.A.tasting B.hunting C.searching D.eating

　　29.A.astonished B.annoyed C.disappointed D.excited

　　30.Asound B.voice C.noise D.echo