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1、优选UNIT2LOOKINGINTOTHEFUTURESectionⅠReadingandThinking(1)阅读理解A WASHINGTON—Itstartsoutlayingflat,likeasheetofpaper.Thenitspringsup,almostlifelike,andfoldsintomoveablepartsmuchlikeJapanesepaperorigami(折纸)art.Andthenitcrawlsaway. Thisnewkindofrobotcouldsomeday
2、beusedinspaceexploration,toslideintocollapsedbuildingsitestoaidthesearchandrescue,ortospeedupproductiononassemblylines,expertssaid. Whilethisparticularmachine’smarchtotheworldmarketisstillyearsaway,thereportinthejournalSciencesaidthelatestadvancesopenthewa
3、ytoanewfrontierinpersonalisedrobotics. Notonlyisthematerialcheap—itcostjust$100—itcouldbeeasilyreprogrammedfromonetasktoanother,saidSamFelton,aresearcheratHarvardUniversity’sWyssInstituteforBiologicallyInspiredEngineeringandSchoolofEngineeringandAppliedSci
4、ences.“InthesamewaythatifyouhaveaWorddocumentandyouwanttochangeafewwords,youjustreprintitatyourhomeputer,youcouldtakearobot’sdigitalplan,changeafewthingsandreprintit,”Feltontoldreporters. Thethinrobotisbuiltoflayers,includingpaper,amiddlelayerofcopperintoa
5、networkofelectricalleads,andanouterlayerofshape-memorypolymers(聚合物)-15-/15优选thatfoldwhenheated.Oncethebatteriesandmotorsareactivated(激活),therobotfoldsitselfmuchlikeachild’sTransformertoy,andmovesawaylikeacrab. Otherpotentialusescouldincludeself-assemblingf
6、urniture,orevensheltersthatbuildthemselvesindisasterzones.“Theexcitingthinghereisthatyoucreatethisdevicethathasputation(计算)putintheflat,printedversion,”explainedDanielaRus,professorofelectricalengineeringandputerscienceattheMassachusettsInstituteofTechnolog
7、y(MIT).“Andwhenthesedevicesliftupfromthegroundintothree-D,theydoitinathoughtfulway.”1.Theauthorintroducesthetopicofthetextby. A.givingadescription B.makingaparisonC.givinganexampleD.makingasummary解析:推理判断题。分析文章第一段可知,作者首先对这款可以折叠的机器人进行了描述,通过此种方法引出文章的话题。答案:A2.T
8、herobotcouldbeusedto. A.makepaperorigamiartB.maketoysforchildrenC.dohouseworkforhumansD.searchforsurvivorsinanearthquake解析:推理判断题。分析文章第二段可知,这款机器人可能会被用来在地震中搜救幸存者。-15-/15优选答案:D3.WhichofthefollowingisTRUEa
