新核心大学英语B版听说教程2Unit.ppt

Unit2Energy Inthisunityouwill 1 learnaboutsomeenerty relatedproblemsandpressureshumanbeingsface 2 familiarizeyourselfwiththewords expressionsrelatedtothethemeoftheunit 3 learntousethesewordsandexpressions 4 learnmoreabouttheABCsofnewsreporting 5 practicelisteningwithothernon theme relatedaudioandvideomaterials 6 learntousetheproperexpressionsandsentencestructurestoaskpermission Learningobjectives PartITheme RelatedActivities PartIIListeningStrategies PartIIIExtensiveListening PartIVCommunicationSkills PartVAssessmentLog PartITheme RelatedActivities SectionITalk SectionIIFeature SectionIIITalk 1 Whatmeasuresshouldbetakentoraisepeople sawarenessofenergyconservation 2 Whathaveyoudonetoadoptorpopularizeamoreenergy efficientlifestyle Lead inquestions Unit2 PartI SectionI Lead inquestions WordBank Unit2 PartI SectionI WordBank Unit2 PartI SectionI WordBank Notes Unit2 PartI SectionI Notes 1 AndsothenIwentouttodevelopawholeseriesonthelandscapeofoil ThenIstartedtomakeaseriesonthesituationofoil 2 Andthat sonechapter Andthat sonlyonepartofthewholething 3 Thewholeworldat1 2trillionestimatedreserves onlygivesusabout45years Theestimatedreservesofoilis1 2trillionforthewholeworld whichwouldonlysustainourlifeforabout45years 4 peakoilaperiodwhichseesanextremelylargeconsumptionofoil Task1Watchthevideoclipandthencompletethefollowingcomprehensionquestions Task Unit2 PartI SectionI Task1 1 What mostlikely isthespeaker soccupation A Writer B Photographer C Socialactivist D Ecologicalresearcher 2 Whydidthespeakerdecidetophotographthelandscapeofoil A Oilreflectsthescaleofchangeandthespeedwetakeresources B Oilisthemostbasicsupportofourdailyactivities C Wehaverunintothemostseriousoilcrisisindecades D SuchalandscapedemonstratesourexploitationoftheEarth Unit2 PartI SectionI Task1 3 Whatdoesthespeakerintendtodocumentwithhisphotos A Howpeoplecelebratetheircars B Overexploitationoflimitednaturalresources C Thedaywheneverythingbuiltonoilcollapses D Consumptionofoilinourmotorcultures 4 Accordingtothespeaker howlongwillthepresentoilreserveslast A Approximately30years B Approximately40years C Approximately45years D Approximately50years Unit2 PartI SectionI Task1 5 Whatisthepurposeofthistalkonphotographingthelandscapeofoil A Toalerttheaudienceofthedireconsequencesoftheendofoil B Tocallonpeopletotakeactionregardingtheenergycrisis C Toimparttheknowledgeofoilconservation D Toadvocateforamoreeco friendlylifestyle Task2Watchthevideoclipasecondtimeandthenidentifywhichofthefollowingtopicsthespeakermentionedinthetalk Tickthoseyouheardinthetalk Task Unit2 PartI SectionI Task2 1 Howoilisextractedandrefined 2 Monitoringtheconsumptionofoil 3 Thepossibleendofoil 4 Interactingwithmoreecologists 5 Supportingorganicmaterialandorganiclifestyles 6 Thebiggestoilsuppliersintheworld 7 Theamountofoilconsumedeveryyear 8 Beresponsibletofuturegenerations Task3Watchthevideoclipagainandthenhaveagroupdiscussionbasedonthefollowingquestions Afterthediscussion eachgroupwillgiveabriefreporttotheclass Task Unit2 PartI SectionI Task3 Script Script Unit2 PartI SectionI Script WordBank Unit2 PartI SectionII WordBank Unit2 PartI SectionII WordBank Notes Unit2 PartI SectionII Notes Task1Watchthevideoclipandthencompletethefollowingtable Task Unit2 PartI SectionII Task1 water oil land energy climate economicpressure enchantedbyhersmallworld leftthesuburb onthetopfloor Unit2 PartI SectionII Task1 acompactcar recycled harnessingtheocean senergy lessdesirableplaces Whyarethechallengeswearefacingtodayespeciallydifficultforthegovernmenttocopewith 2 Whatabnormalphenomenacanbeobservedinplants 3 WhywasLucy smotherpuzzledwhenshesawthedragonflies Task2Watchthevideoclipasecondtimeandthengiveashortanswertoeachofthefollowingquestions Task Allthesechallengesarehappeningatthesametime Flowersarebloomingearlier treesareleafingearlier Unit2 PartI SectionII Task2 TheyweresupposedtobeinCuba notinMiami Unit2 PartI SectionII Task2 4 Whatcouldhappentotheoilpriceby2015 5 WhatisthebasicassumptionbehindtheAmericanwayoflife 6 HowistheAmericanagriculturesystemheavilydependentonoil Itcoulddoubleortriple Oilwillbeplentifulforever Planting harvestingandtransportingalldependontheconsumptionofoil Task3Watchthevideoclipagainandmakeatwo minutecommentonthetopicofthevideoclip Preparetoansweroneortwoquestionsraisedbytheclassoryourteacherafteryourpresentation Task Unit2 PartI SectionII Task3 ForReference Unit2 PartI SectionII Task3 Questions 1 Whataresomeoftheproblemshumanbeingsarefacedwithnow 2 Doyouhaveanyideawhatrenewableenergyis Whydoesrenewableenergyattractmuchattentionthesedays Temperaturechange plungingstockmarkets theshortageofdrinkingwater diseases epidemics energy climate food population economicpressures risingsealevels drought etc Renewableenergycomesfromnaturalresourcesthatarenotdepletedbyuseorarequicklyreplenishedsuchasenergyfromthewindandsun Theideaofrenewableenergyisparticularlyappealingthesedaysbecausemorepeopleworldwideareawareofthefactthatourcurrentenergyresourcesarenotendless Wewillultimatelyrunoutofthem Unit2 PartI SectionII Task3 3 Whatistheso calledAmericanwayoflifediscussedinthevideo 4 DoyouadmiretheAmericanwayoflife Pleasegiveyourreasons Thekindoflifethatdependsonthebeliefthatoilwillbeplentifulforever Notreally TheAmericanwayoflifeisbasedonafalsebelief Infact ouroilreservewillnotlastforever ManyAmericanspreferbiggercarswhichconsumemoreoilandlargerservingsoffood whichcontainhighercaloriesandcholesterol Butmoredoesnotnecessarilymeanbetter InsteadIpreferamoderatelifestyle Unit2 PartI SectionII Task3 Script 5 Doyouwanttoliveinasmalltownorinthecountrysidewhereyoucanleadamoreself reliantsortoflife Pleaseelaborate Answerswillvary 6 Willhumanbeingsonedayoutsmartthemselves Whyorwhynot Answerswillvary Script Unit2 PartI SectionII Script WordBank Unit2 PartI SectionIII WordBank Unit2 PartI SectionIII WordBank Notes Unit2 PartI SectionIII Notes 1 I lltrytospinastoryaboutenergy I lltrytotellyouastoryaboutenergy inwhichimaginationisinvolved 2 M I T MassachusettsInstituteofTechnology Foundedin1861 isaprivateresearchinstitutelocatedinCambridge Massachusetts MIThasfiveschoolsandonecollege containingatotalof32academicdepartmentswithastrongemphasisonscientificandtechnologicalresearch Task1Watchthevideoclipandthendecidewhetherthefollowingstatementsaretrueorfalse Task Unit2 PartI SectionIII Task1 1 Inthetalkthespeakercoversseveralsourcesofenergyinadditiontooil 2 Thespeakersaysoilismarvelousbecauseitisenergy denseandeasytofindonEarth Oilisveryenergy denseandveryeasytorefineintoanumberofveryusefulproductsandfuels T F Unit2 PartI SectionIII Task1 3 Inthelast25yearsoilconsumptionhasdroppedfrom50percentto35percent 4 Thereisnodifferencebetweenlimestone chalkandabaloneshellsbecausetheyareallmadeofthesamematerial calciumcarbonate 5 LiketheStoneAge theageofoilwillalsoendbecauseonedaywewillrunoutofoil Thereisadifference andthedifferenceliesinhowthemoleculesareputtogether T F F TheStoneAgeendednotbecauseweranoutofstones Ideas innovationandtechnologywillendtheageofoillongbeforewerunoutofit Task2Watchthevideoclipasecondtimeandthencompletethefollowingstatements Task Unit2 PartI SectionIII Task2 1 Searstookoilasthestartingpointofhisstoryaboutenergybecauseofits 2 Youcangetthemarvelousliquidofoilbyputtingaboutand20hydrogenatomstogetherin 3 Formostofthepast150years oilhasbeenofourenergysystem 4 Oilhasbeenplayinginglobalenergysystemforthelast25years andgasolineconsumptionisandwillcontinueto convenience eightorsocarbonatoms exactlytherightway adominantpart lessandlessofarole decline Unit2 PartI SectionIII Task2 5 Inthelastfewdecades whathastakentheplaceofoilarealotofandalittlebitofenergy 6 Anobservabletrendinourenergysystemisthatitisbecoming 7 Limestoneandchalkaremadeofchemicalelements andtheirdifferencerestsintheway 8 Abaloneshellsaretougherthanchalkbecauseabalonelaysdowncalciumcarbonatecrystals 9 Thefutureoftrulysustainable carbonfreeenergyliesinofsomesimplestuffdifferently 10 Itisthatwillbringapromisingfutureintermsofenergy naturalgas nuclear progressivelylesscarbonintense thesame themoleculesareputtogether 3 000times inlayers rearrangingthemolecules ideas innovationsandtechnology Script Script Unit2 PartI SectionIII Script PartIIListeningStrategies SectionINews Sources News Sources Unit2 PartII SectionI Newsmediaincludesnewspaper magazine radio television theInternet etc Theyareimportantvehiclesforconveyinginformation InBritain importantnewspapersaretheDailyExpress DailyMail DailyMirror DailyTelegraph FinancialTimes Guardian theSun theTimes whileinUSleadingnewspapersincludetheChicagoDailyTribune ChristianScienceMonitor InternationalHeraldTribune LosAngelesTimes NewYorkTimes WallStreetJournal etc InCanadaprimarynewspapersincludetheGlobeandMail MontrealStar OttawaJournal TorontoStar VancouverSun etc InAustraliaandNewZealandleadingnewspapersaretheEveningPost Herald theAustralian AucklandStar NewZealandFinancialTimes etc Unit2 PartII SectionI LeadingEnglishradioandtelevisionstationsareBritishBroadcastingCorporation BBC AmericanBroadcastingCompany ABC AustralianBroadcastingCommission ABC CableNewsNetwork CNN CanadianBroadcastingCorporation CBC ColumbiaBroadcastingSystem CBS NationalBroadcastingCorporation NBC NationalPublicRadio NPR NewZealandBroadcastingCorporation NZBC RadioAustralia RA RadioCanadaInternational RCI VoiceofAmerica VOA etc Unit2 PartII SectionI ListeningSkill ListenforSourceofInformationandReporter sVoiceApartfromthesixbasicelementsofnewsreports thesourceofinformationandthestanceofeachreportarealsoimportant Sincenewsisnevertobefabricatedandfalsified thesourceoftheinformationreportedbecomesanindispensableguaranteetokeepthenewsobjectiveandpersuasive Ontheotherhand objectivenewsisnotcompletelyobjectivebecausethereporter svoiceisrarely100percentneutral Takealookatthefollowingtwoexamples Unit2 PartII SectionI e g TheworldmaysoonseetheendofBlackGuillemotandthePacificwalrusasaresultofseaicelossintheArctic accordingtoscientistsmeetingattheArcticScienceConferenceinFairbanks Alaska e g NewsweekhaslearnedthatPentagonanalystsarestillaggressivelyhuntingforevidencethatmighttieAtta oranyoftheotherhijackers toSaddam sagents Itmayyetturnup butfornow atleast themuchtouted Pragueconnection appearstobeanintriguing butembarrassing mistake Inthefirstexample thesourceofinformationcomesfrom scientists Theyaremorepersuasivethanthereporterfortheissueofspeciesextinctionduetoiceloss Thesecondexampleuses might mayyet atleast appears toshowthereporter slackofevidencetoreachaconclusion Unit2 PartII SectionI RuleofThumb1Sourcesofinformationhavevariouslinguisticrealizationsinnewsreports Sometypicalexpressionsare accordingto astheofficialputsit itisreported datashows authoritiessaid thespokesmanannounced etc RuleofThumb2Thereporter swordchoiceandinflectioncanrevealtheirownstanceonasubject Sometypicalexpressionscanhelpusfindthereporter svoice Theyinclude inallpossibility itisdoubtful itisfullyjustifiable itislikely thereisgoodevidencethat thereisnodoubtthat itseems appearsthat Besidesthat modalsalsohelppinpointthereporter svoice may might can could should andoughtto WordBank Unit2 PartII SectionI Task1 Task1Listentothefollowingnewsforkeywordsthatrealizethesourceofinformationandthereporter sstance Thenfillintheblankswiththeexactwordsyouheard Task Unit2 PartII SectionI Task1 NoLinkBetweenSomeHigh CarbohydrateFoodsandCancerResearcherssaythere1 tobenolinkbetweenasubstancefoundinsomehigh carbohydratefoodsandthedevelopmentofsometypesofcancer 2 researcherscomparedthedietsof1 000peoplewithcolon bladderandkidneycancerwiththedietsofnearly550healthyindividuals appears USandSwedish Unit2 PartII SectionI Task1 Researcherslookedathowmuchpotatochips Frenchfriesandbread andcertaintypesofcerealtheyconsumed Thoseareallfoodsfoundtocontainhigherlevelsofacrylamide The3 thencomparedthosewhoatefoodscontainingalotofacrylamidetothosewhoconsumedlessofthesubstance LoreleiMucciofHarvardUniversity sDepartmentofEpidemiologyinBostonisthestudy sleadauthor TheresultsarepublishedinthecurrentissueoftheBritish4 Wefoundthatnoneofthefooditemsthathavehighormediumlevelsofacrylamide5 toincreasetheriskofcancer Andthenalsothatthetotalacrylamidedosethatsomeonetakesinthroughtheirdietswasnotassociatedwithanyexcessriskofthesefourcancers investigators JournalofCancer seem Unit2 PartII SectionI Task1 Swedishresearcherssparkedinternationalalarmlastyear whenthey6 thattheyhadfoundhighlevelsofacrylamideincertainfoods Researchers7 acrylamidecancausecancerinanimals raisingconcernthatit8 causecancerinhumans 9 saythesubstanceisproducedwhenstarchyfoods suchaspotatoes arecookedatveryhightemperatures suchasfrying ButMs Muccisaidherstudysuggestsacrylamide10 notbeasharmfulasfirstthought 11 inthedosesthatpeoplearetakinginthroughthediet So 12 what shappeningisthat eventhoughyou retakinginacrylamidethroughyourdiet youareabletoeffectivelydetoxifyit ButMs Muccisaysshe13 liketoseefurtherstudyofacrylamideandits14 linkstoothercancers announced say could Scientists may Atleast probably would possible WordBank Unit2 PartII SectionI Task2 Notes DalhousieUniversityinHalifax CanadaLocatedinHalifax NovaScotia Dalhousieisaleading research intensiveuniversityofferingover180degreeprogramsin11diversefaculties Unit2 PartII SectionI Task2 Task2Listentothefollowingnewsforkeywordsthatindicatethesourceoftheinformationandthereporter sstance Thenfillintheblankswiththeexactwordsyouheard Task Unit2 PartII SectionI Task2 DecreaseinSharkPopulationHarmsOceanEcosystems1 sayoneoftheworld smostfeared butmisunderstood creaturesisunderassaultbyfishermen Anewstudyofalltypesofsharks2 thattherearefewerofthemthanthereusedtobe andthatisharmingoceans ecosystems Astudyinthisweek sjournal3 isoneofthefirsttolookatthesharkpopulation Researchers4 sharksinthenorthwestAtlantic avastareathatencompassesNewfoundlandtothenorthandnorthernBraziltothesouth andstretchesfromtheGulfofMexicotoadistantpointeastoffthecoastofSouthofAmerica Experts finds Science surveyed Unit2 PartII SectionI Task2 5 JuliaBaumsaysfishermanusinglonglineswithuptoathousandhooks designedtocatchswordfishandtuna arealsosnaringsharks AndMs Baumsaysthishasresultedinhugesharkdeclines Forhammerheadsharks an89percentdeclineiswhatweareestimatingforthepast15years Thatisaphenomenaldecline6 thethreshershark weestimatehasdeclinedbyan80percentdecline Thestudyalso7 a79percentdropforwhitesharksanda65percentdeclineintigersharkssince1986 Ms BaumandcolleaguesatDalhousieUniversityinHalifax Canadaused8 fromlogbookskeptbyfishermen andtheypluggeditintoamodeltoarriveattheestimates Leadauthor Similarly found data Unit2 PartII SectionI Task2 Ms Baumsaystheuseofhookedlonglinesiscommonallovertheworld soit ssafeto9 thatsharkpopulationsareinsteepdeclineglobally Whilemanysharksarecaughtbyaccidentinlonglines shesayssharkfinsareprizedthroughoutAsiatomakesoup sothere sadeliberateefforttocatchthemaswell Manypeoplemight10 whyit simportanttoworryaboutfewersharksbecausethey repredatorsandwillattackhumans Thenumberofattacksthroughouttheworldisfairlyminimal MalcolmSmaleisamarinebiologistwiththePortElizabethMuseuminSouthAfrica Forexample inSouthAfrica weonlyhaveaboutthreetofiveattacksperyearonaverage Lessthanoneperyearisfatal Andthisisamuchlowernumberthananyothercauseofeitherinjuryorfatality forexample roadaccidents peoplegettingshotinburglaries peopledrowning peoplestruckbylightningandsoon assume ask Unit2 PartII SectionI Task2 Butsharksaretheoceans toppredator Assuch Mr Smalesaystheyeatsmaller weakerfishandthosethat11 beunfitforhumanconsumption Now onemight12 it snotsuchabadthing Butinreality whatwe13 callpestspecies thosewithveryrapidlifecycles inotherwords theybreedwithinayearortwo are14 tobecomemorecommon Andontheonehand thatmightbethoughttobeagoodthingifthey reedible butinmanycasesthesespeciesmightbepestspecies inotherwords notsuitableforhumanconsumption Andsothisisdetrimentaltobothhumansandthefoodweb may think would likely Unit2 PartII SectionI Task3 Task3Readthefollowingpassageaftertheclip payparticularattentiontopronunciationandintonation Task Swedishresearcherssparkedinternationalalarmlastyear whentheyannouncedthattheyhadfoundhighlevelsofacrylamideincertainfoods Researcherssayacrylamidecancausecancerinanimals raisingconcernthatitcouldcausecancerinhumans Scientistssaythesubstanceisproducedwhenstarchyfoods suchaspotatoes arecookedatveryhightemperatures suchasfrying ButMs Muccisaidherstudysuggesteacrylamidemaynotbeasharmfulasfirstthought PartIIIExtensiveListening INewsReports IITalk IIIScienceReport IVConversations VPassageListening VICompoundDictation WordBank Unit2 PartIII INewsReports I 1 Whatisthetalkmainlyabout A Theenvironmentalbenefitsofusinglessairconditioning B Itisoutrageoustoenforceanair conditioningbanonexaminees C Poorairconditioningmaycausediseases D Badhabitsarenottoodifficulttogetawaywith Listentothereportandthendothefollowingexercise Unit2 PartIII INewsReports I 2 Whyisthereanair conditioningbanforstudentstakingexaminationsinhotweather A Togreatlyreducegreenhousegasemission B Topromotepublicawarenessofenergyconservation C Tohelptoughenexaminees mindandincreasetheirtolerance D Toensurefairnessforexamineesacrossexamlocations 3 Whatconclusiondoesthespeakerdrawfromthebanonairconditioningforstudents A People especiallytheyouth havehighadaptability B Thegeneralpubliccanalsomanagewithoutairconditioning C Peoplecanturnofftheirairconditionerseveninsummer D It stimeforpeopletogetridoftheiraddictiontoairconditioning Unit2 PartIII INewsReports I Script Script Unit2 PartIII INewsReports I WordBank Unit2 PartIII INewsReports II 1 Howisathermostatdifferentfromathermometer A Theformerreadsairtemperature B Theformerregulatesindoortemperature C Theformerhasafurnaceattachedtoit D Theformercanforecasttemperature Listentothereportandthendothefollowingexercise Unit2 PartIII INewsReports II 2 Howcanthethermostatcooltemperaturedowninahouse A Thefreeendcurlsawayfromthemetalcontactandshutsoffthefurnace B Thefreeendcurlstowardthemetalcontactandshutsoffthefurnace C Thebimetalliccoiltightensatthefastenedend D Thebimetalliccoilloosensatthefastenedend 3 WhichofthefollowingisNOTanelementin