【人教版】2020届一轮优化探究英语练习 必修三 Unit 4 Astronomy：the science of the stars 含答案.doc

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1、Ⅰ.阅读理解AHowoftenhaveyoureadastorythatafriendorfamilymemberhassentyou？Verylikelyyouwouldhaveskippedthenewshaditnotbeenpointedouttoyou.TraditionallynewspapersandfamousTVchannelshavebeenoursourceofauthenticnews.Butthesedayswiththepopularityofsocialmedia，sharingstoriesisincreasinglybecomingafa

2、voritesourceofnews.Infact，researchsuggeststhatmorethanhalfthepeoplegettheirnewstodayfromsocialmediasuchasFacebook，TwitterandGoogle.Socialmediasitesoftenaggregatecontentsforustoseebasedontrendingtopics—storiesthathavebeenviewedbymanyothersaswellasbasedonourownpastsearchesandanalysisofourli

3、kesanddislikes.Ifyouhavelikedkittensinthepast，youmayhavenoticedthatyouareseeingmorenews，blogsandanalysisaboutkittensallofasudden.Whileadvocatesoffreespeechdonotwanttocontrolanyvoice，itiscertainlyharmfulwhenitisdifficulttoseparatetruthfromfiction.Imaginetheinfluenceoffake(虚假的)newswhenitbeg

4、instoaffectourownlives.Trustingapieceofnews，patientscouldveryeasilyfallforwrongdiagnosis;elderscouldgivemoneytocheatsandreputationofperfectlyuprightcitizenscouldbeeasilyruined.Whataboutwhenweresearchforaschoolprojectandbaseouranalysisonfalseinformationornews?MarkZukerberghasfinallyacknowl

5、edgedtheissue.Amongseveralprojectsthatthecompanyisconsidering，Facebookistryingtotakepowerfulmeasurestocrackdownonfalsenews.Thiswouldincludewarninglabelsonfakecontents.Fakenewsalsomakesalotofprofitsfromadvertising.GoogleandFacebookhavesaidtheywilllimitadvertisingprofitsontheirnetworkfromsu

6、chsites.Thebottomline—don'tbelieveeverywordofwhatyouread.Domoreresearchfrommultiple(多样的)sourcestoensurethatthenewsisindeedtruebeforeyousharewithothers.[语篇解读]　本文为一篇说明文.现在社交媒体充斥着大量虚假信息，这些信息的传播对人们的生活危害很大.为了治理这种现象，一些社交媒体已经采取了一些措施.1．Whatdoestheunderlinedword“aggregate”inParagraph3probablymean?

7、A．Analyze.　　　　　　B．Cancel.C．Gather.D．Rewrite.解析：词义猜测题.根据第三段最后一句可推知：社交媒体经常根据用户的浏览、搜索信息为用户收集信息，由此可见aggregate意为：gather(收集).analyze“分析”；cancel“取消”；rewrite“改写”.答案：C2．WhatcanweinferfromParagraph4?A．Peopletendtobelievethenewsonsocialmedia.B．Falsenewsisfashionableonsocialmed