新核心大学英语B版听说教程3Unit-4

Unit4TheUseofNanotechnologyInthisunityouwill:1.learnaboutthedevelopmentofnanotechnology,fromthediscoveryoffullerenestoitslatestapplicationsineverydaylife;2.familiarizeyourselfwiththewordsandexpressionsrelatedtothethemeoftheunit;3.learntopredictandinferwhilelisteningtoalecture;4.enhancelisteningskillsthroughnon-theme-relatedaudioandvideomaterials;5.learntogivepresentationscompetentlyandeffectively.LearningobjectivesPartITheme-RelatedActivitiesPartIIListeningStrategiesPartIIIExtensiveListeningPartIVCommunicationSkillsPartVAssessmentLogPartITheme-RelatedActivitiesSectionIScienceReportISectionIIScienceReportIISectionIIIScienceReportIII1.Doyouknowwhatnanotechnologyis?2.Howcannanotechnologybeappliedinourlife?Lead-inquestions:Unit4》PartI》SectionI》Lead-inquestionsWordBankMecca/ˈmekə/n.麦加（伊斯兰教圣地）；众人渴望去的地方elite/eɪˈliːt/n.精英，精华counterpart/ˈkaʊntəpɑːt/n.（职位或作用）相当的人；对应的事物synthesis/ˈsɪnθəsɪs/n.合成manipulate/məˈnɪpjʊleɪt/v.操纵，控制；操作scratch-proof/ˈskrætʃˌpruːf/adj.防刻划的steppe/step/n.（欧亚大陆上中纬度的）大草原InnerMongolia内蒙古sheepherder/ˈʃiːphɜːdə(r)/n.牧羊人pylon/ˈpaɪlən/n.电缆铁塔Unit4》PartI》SectionI》WordBankeco-friendly/ˈiːkəʊˌfrendlɪ/adj.生态友好的；不损害生态环境的integrate/ˈɪntɪɡreɪt/v.合并；使合为一体globule/ˈɡlɒbjuːl/n.（液体的）小球体sol/sɒl/n.溶胶，溶液silicicacid硅酸wafer-thin/ˈweɪfə(r)ˌθɪn/adj.极薄的diffraction/dɪˈfrækʃən/n.（光线、电波等的）衍射mini-turbon.小型涡轮photovoltaic/ˈfəʊtəʊˌvɒlˈteɪɪk/adj.光电的furnace/ˈfɜːnɪs/n.焊炉；熔炉cameraman/ˈkæmrəmən/n.（电影、电视节目的）摄影师shard/ʃɑːd/n.（玻璃、金属等的）碎片Unit4》PartI》SectionI》WordBankNotesUnit4》PartI》SectionI》Notes1.NanotechnologyNanotechnology(sometimesshortenedto¡°nanotech¡±)isthestudyofmanipulatingmatteronanatomicandmolecularscale.Generally,nanotechnologydealswithstructuressizedbetween1to100nanometreinatleastonedimension,andinvolvesdevelopingmaterialsordevicespossessingatleastonedimensionwithinthatsize.Quantummechanicaleffectsareveryimportantatthisscale,whichisinthequantumrealm.NanotechnologymaybeabletocreatemanynewTask1Watchthevideoclipandthendecidewhetherthefollowingstatementsaretrueorfalse.1.Americansaremoreopen-mindedandoptimisticthanGermans,whenitcomestonewfieldsofresearch.2.“Nanos”istheLatinwordfor“dwarf”.3.Solarcellsareusedtoproduceelectricitybecausetheyareeco-friendlyandhighlyefficient.4.Theanti-reflexglasscannotbewidelyusedinindustryduetoitshighprice.5.Theanti-reflexglasscanbearaheavyloadwithoutshattering.FT________F____F____T____Unit4》PartI》SectionI》Task1Task2Watchthevideoclipforthesecondtimeandthencompletethefollowingsentences.1.ThenanoworldistoProfessorGeorgeWhitesides.Infact,heistheintheworld.2.Plastics,paintbecomesscratch-proof,andsolarenergybecomeseveninthedepthsofAsia.3.Thereisstillwhensolarcellsareintegratedintomodernarchitecture.morethanfamiliar_______________Unit4》PartI》SectionI》Task2most-quotednanotechnologyexpert_______________________________conductelectricity______________internationallycompetitive_________________________anoticeableloss______________4.Nanocoatingsavesandincreasestheenergyyieldbyfromeighttotwopercent.5.Furtherdevelopmentandqualitycontrolareofanyinnovation.rawmaterials___________reducingthereflectionoftheglass____________________________Unit4》PartI》SectionI》Task2partandparcel_____________thatisreadyformarketing_____________________【Script】Unit4》PartI》SectionI》Task3Task3Watchthevideoclipagainandthenworkinpairstodescribetheproductionofanti-reflexglassanditsproperties.Afterwards,eachgroupwillgiveabriefreporttotheclass.ScriptUnit4》PartI》SectionI》ScriptP112.mp3Boston,thisbustlingmetropolisontheeasterncoastoftheUnitedStatesisalsothecountry¡¯ssciencecapital.Theportalreadyindicatesthatunusualcombinationsarefarfromuncommonhere.BostonisthehomeofthatMeccaofinvention,theMassachusettsInstituteofTechnology¡­andalsoofeliteHarvardUniversity.Inoneofthesefuturisticbuildings,wewillbeginourexpeditionintotheworldoftheminutes,thenanoworld.ThenanoworldismorethanfamiliartoProfessorGeorgeWhitesides.Infact,heisthemost-quotednanotechnologyexpertintheworld.ThemediaandtheWordBankexhaust/ɪɡˈzɔːst/n.排出的废气nanocube/ˈnænəʊˈkjuːb/n.纳米立方体porous/ˈpɔːrəs/adj.可渗透的,多孔的filter/ˈfɪltə(r)/n.过滤器granule/ˈɡrænjuːl/n.细粒electronmicroscope电子显微镜storage/ˈstɔːrɪdʒ/n.贮存thimbleful/ˈθɪmblfʊl/n.极少量reinforcement/ˌriːɪnˈfɔːsmənt/n.加强cavity/ˈkævəti/n.洞；腔Unit4》PartI》SectionII》WordBankUnit4》PartI》SectionII》WordBankliquefy/ˈlɪkwɪfaɪ/v.液化electrolysis/ɪˌlekˈtrɒləsɪs/n.电解porosity/pɔːˈrɒsəti/n.多孔性PET(polyethyleneterephthalate)聚对苯二甲酸乙二醇酯（饮料瓶和食品容器的主要材料）cylinder/ˈsɪlɪndə(r)/n.圆筒容器；（装液化气等的）钢瓶MOF(Metal-OrganicFramework)金属有机骨架lattice/ˈlætɪs/n.晶格，点阵valve/vælv/n.阀NotesUnit4》PartI》SectionII》Notes1.HydrogenHydrogenisnotanenergyresource,exceptinthehypotheticalcontextofcommercialnuclearfusionpowerplantsusingdeuteriumortritium,atechnologypresentlyfarfromdevelopment.TheSun¡¯senergycomesfromnuclearfusionofhydrogen,butthisprocessisdifficulttoachievecontrollablyonEarth.Elementalhydrogenfromsolar,biological,orelectricalsourcesrequiremoreenergytomakeitthanisobtainedbyburningit,sointhesecaseshydrogenfunctionsasanenergycarrier,likeabattery.Hydrogenmaybeobtainedfromfossil1.Accordingtothevideo,whatwillthene