- 1、本文档共12页,可阅读全部内容。
- 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
2024年全国新课标一卷英语阅读理解D篇试题解析
一、试题再现。
D
IntheracetodocumentthespeciesonEarthbeforethey
goextinct,researchersandcitizenscientistshavecollected
billionsofrecords.Today,mostrecordsofbiodiversityare
oftenintheformofphotos,videos,andotherdigital
records.Thoughtheyareusefulfordetectingshiftsinthe
numberandvarietyofspeciesinanarea,anewStanford
studyhasfoundthatthistypeofrecordisnotperfect.
“iththeriseoftechnologyitiseasyforpeopleto
makeobservationsofdifferentspecieswiththeaidofa
mobileapplication,”saidBarnabasDaru,whoisleadauthor
ofthestudyandassistantprofessorofbiologyinthe
StanfordSchoolofHumanitiesandSciences.These
observationsnowoutnumbertheprimarydatathatcomesfrom
physicalspecimens(标本),andsinceweareincreasinglyusing
observationaldatatoinvestigatehowspeciesareresponding
toglobalchange,Iwantedtoknow:Aretheyusable?”
Usingaglobaldatasetof1.9billionrecordsofplants,
insects,birds,andanimals,Daruandhisteamtestedhow
wellthesedatarepresentactualglobalbiodiversitypatterns.
“ewereparticularlyinterestedinexploringthe
aspectsofsamplingthattendtobias(使有偏差)data,like
thegreaterlikelihoodofacitizenscientisttotakea
pictureofafloweringplantinsteadofthegrassrightnext
toit,”saidDaru.
Theirstudyrevealedthatthelargenumberof
observation-onlyrecordsdidnotleadtobetterglobal
coverage.Moreover,thesedataarebiasedandfavorcertain
regions,timeperiods,andspecies.Thismakessensebecause
thepeoplewhogetobservationalbiodiversitydataonmobile
devicesareoftencitizenscientistsrecordingtheir
encounterswithspeciesinareasnearby.Thesedataarealso
biasedtowardcertainspecieswithattractiveoreye-catching
features.
h
文档评论(0)