小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com选择性必修第四册UNIT3SEAEXPLORATIONⅠ.阅读理解Coralreefsareanecessarypartofsealifeandsupportitbyprovidingshelterandhabitattovariousorganisms.Theyalsosupplyandrecyclenutrientsaswellasenableafishpopulationtoboom，alongwithotherspecies，forahealthyanddiverseecosystem.However，theriseinaveragewatertemperatureduetoclimatechangehasresultedinmorefrequentandextended“coralbleaching(珊瑚白化)”eventsthatdamagetheirhealth，causingfishandotherseaspeciestoabandonthem.Inordertorepairthisdelicateecosystem，scientistsfromtheUKandAustraliaconductedastudythatinvolvedusingspeakersunderwaterneardamagedcoralreefstomakethemsoundhealthyandattractfish，potentiallystartingthenaturalrecoveryprocessofcoralreefsandtheirdependentlifeforms.ThelocationofthisexperimentwastheGreatBarrierReefintheCoralSea，foundalongsidetheeastcoastofQueensland，Australia，whichisfamousforhavingthelargestcoralreefsystemintheworldthat’s2，300kilometreslongandcoversanareaofnearly344，400squarekilometres.Byusingloudspeakerstoreproducesuchsounds，areasofdeadcoralreefswerefoundtoattracttwiceasmanyfish，comparedtoplaceswherenosoundswereplayed.Thesereturningfishcouldhelpintherecoveryofthisecosystembygivingthoseareasofcoralachanceofnewlife.“Fishareimportantforcoralreefstofunctionashealthyecosystems.Increasingfishpopulationsinthiswaycouldhelptostartthenaturalrecoveryprocess，reducingthedamagewe’reseeingonmanycoralreefsaroundtheworld.Ofcourse，attractingfishtoadeadcoralreefwon’tbringitbacktolifeautomatically，buttherecoveryprocessreliesonfishthatcleanthecoralreeftomakespaceforcoraltoregrow，”saidMark小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.comMeekan.1.Whatisthefirstparagraphmainlyabout?A.Theimportanceofcoralreefs.B.Theinfluenceofclimatechange.C.Theperfectplaceforseaspecies.D.Theecosystem’sdiversityandcomplexity.2.What’sthepurposeofusingspeakersunderwater?A.Tomakefishmoreactive.B.Totestdamagedcoralreefs.C.Tohelprecovertheecosystem.D.Tohelpspeedthegrowthofcoralreefs.3.WhichofthefollowingisTRUEabouttheexperiment?A.Itwasn’tcarriedoutinthelargestcoralreefsystem.B.Itdrewmuchpublicattention.C.Ithasbroughtdeadcoralreefsbacktolife.D.Theloudspeakerswerehelpfulinattractingfish.4.WhatisMarkMeekan’sattitudetowardstheuseofspeakers?A.Doubtful.B.Positive.C.Disappointed.D.Indifferent.Severalyearsago，JasonBox，ascientistfromOhio，flew31giantrollsofwhiteplastictoaglacier(冰川)inGreenland.Heandhisteamspreadthemacross10，000feetofice，andthenleft.Hisideawasthatthewhiteblanketwouldreflectbacktheraysofthesun，keepingtheicebelowcool.Whenhecamebacktochecktheresults，hefounditworked.Theexposedicehadmeltedfasterthanthecoveredice.Hehadnotonlysavedtwofeetoftheglacierinashorttime.Nocoalplantswereshutdown，nojobswerelost，andnobodywastaxedorfired.Itwasjustthesortoffixwe’relookingfor.“Thankyou，butnothankyou，”saidRalphKing，aclimatescientist.Hetold小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.com小学、初中、高中各种试卷真题知识归纳文案合同PPT等免费下载www.doc985.comGreyChilds，authorandcommentator，that“peoplethinktechnologycansavetheplanet，butthereareotherthingsweneedtodealwith，likecon...