2024届高考英语一轮复习选择性必修第三册UNIT3单元主题训练含答案.pdf

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UNIT3单元主题训练

Ⅰ.阅读理解

EffortstopreservetheAmazonrainforestaregrowingevermoreurgentasthe

ecosystemsdestructionaccelerates.Arecentstudyshowsthatanewprogramcombining

on-the-groundmonitoringwithsatellitedataandsmartphonetechnologycouldhelpputthe

brakesonAmazondeforestation(毁林)—andpotentiallythatofforestselsewhere.

Thescientistscooperatedwith76localcommunities,36ofwhichparticipatedinusing

satellitebased“earlydeforestationalerts”，anearly-alertsystemonasmartphoneapp,to

watchovertheforestandtoinspectforestsanddocumentdamage.Overthenexttwoyears

theparticipantswerepaidtoworkasforestmonitorsandreceivedmonthlyalertsviatheapp

deforestationintheareas.Theyreportedconfirmedlossesbacktotheircommunities,which

decidedwhethertodealwiththeaffairsontheirownorinformstateauthorities.

Theresearchersanalyzedthesameforest-losssatellitedatafromthegiventimeperiodin

all76communities.Theyfoundtheprogramreducedforestlossby8.4hectares(公顷)inthe

firstyear—a52percentreductioncomparedwiththeaveragelossinthecontrol

communities,saysTaraSlough,aneconomistatNewYorkUniversity.“Thisreductionin

deforestationwasconcentratedincommunitiesfacingthelargestthreatofforestloss，”she

adds.

Resultsfortheprogramwerelessstrikinginitssecondyear,whenforestlosswas

reducedbyonly3.3hectarescomparedwiththatincontrolcommunities.Theresearchers

explainthataPeruviangovernmentcampaignagainstcocaplantingthatyearmayhave

discourageddeforestationinbothexperimentalandcontrolcommunities,narrowing

differencesbetweenthetwogroupsintheprogram.

ExpertssaythisapproachtodealingwithAmazoniandeforestationlookspromising.

Localgroupsmaycontinuetheworktheystartedintheprogram.“Wewantt

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