新核心大学英语B版听说教程uni5ppt课件.ppt

Unit5ViewpointsonScience Inthisunityouwill 1 learnaboutthescientificmethod viewpointsonscience andscientificdiscoveriesfromreports speechesandlecturesgivenbyprofessors 2 familiarizeyourselfwiththewordsandexpressionsrelatedtothethemeoftheunit 3 learntousethesewordsandexpressions 4 learnhowtospeakEnglishwithcorrectintonationandlistenfornumbersinspokendiscourse 5 practicelisteningwithothernon theme relatedaudioandvideomaterials 6 usetheproperexpressionsandsentencestructurestoapplyforavisa Learningobjectives PartITheme RelatedActivities PartIIListeningandSpeakingStrategies PartIIIExtensiveListening PartIVCommunicationSkills PartVAssessmentLog PartITheme RelatedActivities SectionIReportAboutScientificDiscoveries PartI SectionIIReportAboutScientificDiscoveries PartII SectionIIIInterview 1 Howdoyoufeelaboutnewscientificdiscoveries 2 Whatdoyouaspiretoinventordiscoverifyouwereascientistnow Lead inquestions Unit5 PartI SectionI Lead inquestions WordBank Unit5 PartI SectionI WordBank Notes Unit5 PartI SectionI Notes Task1Watchthevideoclipandthendecidewhetherthefollowingstatementsaretrueorfalse Task Unit5 PartI SectionI Task1 1 TheancientGreekswereacclaimedasgreatthinkersandobserversbecausetheytestedtheirideasinasystematicandscientificway 2 Thescientificmethodiswidelyusedindailylife fromtroubleshootingcarproblemstomajorscientificdiscoveries Theydidnotbelieveintestingtheirideasinanorderly unbiasedway F T 3 FrenchscientistLouisPasteurwasthefirstonetoapplythescientificmethod 4 Therewasacontroversyoverwheremicrobescomefrom 5 Pasteurconductedanexperimenttoprovethatmicrobesarecreatedbyaspeciallifeforceintheair Butthevideoonlyclaimsthatheconductedanexperimentwithallthefeaturesofscientificmethod Herejectedthistheoryandthepurposeofhisexperimentwasdonetodisprovethisidea T F F Unit5 PartI SectionI Task1 Pasteurbelievedthat 2 Hehypothesizedthat 3 Heplacedthebrothinandheateditto Task2Watchthevideoclipforasecondtimeandthencompletethefollowingsentences microbescouldbecarriedby butnotcreatedbytheair Task Unit5 PartI SectionI Task2 aflaskofbrothwouldstaysterileaslongasnoairbornemicrobescouldgetinandusethenutrientsinthebrothtomultiply forceoutalltheair aspecialswanneckflask 4 Heobservedthecooledbrothandfoundthatwhenhebrokeofftheneckoftheflask 5 Pasteurconcludedthat Unit5 PartI SectionI Task2 airborneobescouldgetinandthebrothbecamecloudyastheymultiplied hisexperimentprovedhishypothesis heshouldaccepthishypothesisratherthanrejectingormodifyingit Task3WatchthevideoclipagainandthenworkinpairstodescribetheexperimentPasteurperformed basedonthevideoclipandthefollowingpictures Afterwards eachgroupwillgiveabriefreporttotheclass Task Unit5 PartI SectionI Task3 Script Script Unit5 PartI SectionI Script WordBank Unit5 PartI SectionII WordBank Notes Unit5 PartI SectionII Notes 1 Ahypothesisis A aneducatedguessorpredictionB adiscussionafterdataiscollectedC aconclusiondrawnafterobservationsandexperimentsD ascientificmethodusedtoproveordisproveone sbelief2 Theexperimentisintendedtotestthehypothesis A doplantsneedlighttogrow B plantsneedlighttogrow C theplantswithoutlightdon tlookhealthy D withoutlight theplantswilleventuallydie Task1Watchthevideoclipandchoosethebestanswerstothefollowingquestions Task Unit5 PartI SectionII Task1 3 Thewaytotesttheaccuracyofanexperiment sresultsisto A repeattheexperimentB findabasicexperimentalmodelC keeptryingdifferentapproachesandcollectingdataD changethevariablesandrepeattheexperiment4 WhichofthefollowingisNOTmentionedasthevariablesthataffectthegrowthofplants A Thepresenceorabsenceoflight B Thetemperatureoftheair C Thetypeofsoil D Thequalityofseed Unit5 PartI SectionII Task1 5 Ifthedatapartlysupportthehypothesis researchersshould A extendtheexperimentaltimeB haveabasicexperimentalmodelC changethehypothesisandredotheexperimentD giveuptheoldhypothesisandcomeupwithabrandnewone Unit5 PartI SectionII Task1 Task2Watchthevideoclipandrearrangethesentencesintheorderthatyouhearthem Brieflydescribeeachpicturetoillustratehowthescientificmethodisapplied Task Unit5 PartI SectionII Task2 a b c d e f Unit5 PartI SectionII Task2 dFirstwemadesomeobservationsandfoundmoreplantsseemtogrowinareasthatreceivelightthanindarkplaces cWeformulatedahypothesisthatplantsneedlighttogrow eTotestourhypothesis wedesignedanexperimenttomakesurethattheplantsintwosidesoftheboxgrowinthesameenvironmentbutgetdifferentlightexposure fWeobservedthegrowthoftheplantsandcollecteddataweneed bWefoundthatthesidethatreceivedlightismoredensewithgreenleaveswhilethesidewithlittlelightgrewstraightwithyellow brownleaves aWedrewaconclusionthattheexperimentpartlysupportedourhypothesis andweneedtomodifyourhypothesisandexperimentagain 1 2 3 4 5 6 Task3Applythescientificmethod aslearnedfromthevideoclip toanexperimentthatyouwouldliketoperform Aftertheexperiment explainthewholeprocesstoyourpartner Payattentiontothesequenceoftheexperiment Task Unit5 PartI SectionII Task3 Script Example YoumayconductanexperimenttoproveArchimedeslaworGalileo slawoffree fall Script Unit5 PartI SectionII Script WordBank Unit5 PartI SectionIII WordBank Note Unit5 PartI SectionIII Notes BeforeMicrosoftcamealong ealong toappearorarriveForexample Abusshouldcomealonganyminutenow Iwilltakewhatevercomesalong Igaveupscubadivingwhenmyfirstchildcamealong Task1Listentotheaudioclipandchoosethebestanswerstothequestionsbelow Task Unit5 PartI SectionIII Task1 1 Microsoftwasfoundedwhenthecompetitionamongsoftwarecompanieswasintense 2 Microsoft smaincompetitorsarenotsoftwarebuthardwarecompanies TherereallywasnosoftwareindustrybeforeMicrosoft F T 3 BooksandthePCwerehugelypopularwhentheyfirstappearedbecauseoftheirpositiveeffects 4 ThePCbusinessisafunbusinessmainlybecauseitisthemostprofitable 5 BillGatesisveryconfidentaboutthefutureofdigitaldevices Whentheycamealong itishardforpeopletoacceptthembecausetheyknewlittleabouttheirpositiveeffects Itisafunbusinessbecausecompaniescandevelopnewversionsofsoftwarebasedoncustomerfeedback F T F Unit5 PartI SectionIII Task1 Task2Directions Listentotheaudioclipagainandworkoutaninterviewinquestion and answerform Practicewithyourpartner Task Unit5 PartI SectionIII Task2 Forreference Script Script Unit5 PartI SectionIII Script PartIIListeningandSpeakingStrategies SectionIPronunciationSkill Intonation SectionIIListeningSkill ListenforNumbers Intonationiscrucialforcommunication Intonationisabouthowonesaysthings ratherthanwhathesays Withoutintonation itisimpossibletounderstandtheexpressionsandthoughtsthatgowithwords Awarenessofintonationaidscommunication Incorrectintonationcanresultinmisunderstandings speakerslosinginterestoreventakingoffence Generalrules Statementsusuallyhaveafallingtoneattheend Thesixquestionwords who what when where why how alsohaveafallingtoneattheend Yes Noquestions questionsonecananswerwith yes or no usuallyhavearisingtone PronunciationSkill Intonation Unit5 PartII SectionI Unit5 PartII SectionI Forexample 1 Howdidyouspendyourvacation fallingtone 2 IwenttoVenicewithmyfianc lastsummer fallingtone 3 Wasityourownchoice risingtone Yes indeed fallingtone 4 Areyougoingtotheseashorethisspring risingtone Task1Readthefollowingsentenceswiththecorrectintonation Task Unit5 PartII SectionI Task1 1 Thatisthepersonwhorobbedthebank fallingtone 2 Doyoumeanthemanwiththeblackpants risingtone 3 No Thewomanwiththeplasticbag fallingtone 4 Areyousayingthatwearegoingtocancelthisproject risingtone 5 Therearenotmanyvisitorsthistimeofyear fallingtone 6 Everyoneisgoingswimming Don tyouwanttocomealong risingtone Unit5 PartII SectionI Task1 7 Doyoumeanthelargeststateinareaorinpopulation risingtone 8 Helookshappy doeshenot fallingtone 9 Howawfulitis fallingtone 10 Motherhasgonetotown fallingtone Task2Listentothefollowingtongue twistersandthenrepeat Task 1 Sixty sixsickchicks2 Thesixthsicksheik ssixthsheep ssick 3 Shesellsseashellsbytheseashore 4 Doyouagree ifyouarefree tocometoteawithmebythesea 5 It sBilly skittensittinginthekitchen 6 Tim sasthinasapin butitisn tasintobethin 7 Willyousitstill Bill I llsitasstillasahill 8 AnEnglishfishermanwishestogetafoolishfishforacolddish 9 AnnsentAndytenhensandAndysentAnntenpens 10 Springisshowery flowery bowery Summerishoppy croppy poppy Autumniswheezy sneezy freezy Winterisslippy drippy nippy Unit5 PartII SectionI Task2 Numbersareimportantindailylife Whengoingshopping oneneedstocalculateprices Inarestaurantoneneedstocalculateandpaythebillaftereating Whenbookingaconcertoraflight ormakinganappointmentoradate timeisabigissue Inthebankonecalculatesinterestratesandthebalanceafterwithdrawingordepositingmoney Agoodsenseofnumbersisthereforeindispensabletosmootheverydaycommunications ListeningSkill ListenforNumbers Unit5 PartII SectionII RuleofThumb1BefamiliarwithcardinalandordinalnumbersinEnglishandknowhowtocountnumberswithmultipledigitsinEnglish RuleofThumb2Knowhowtoexpresstime prices andrates RuleofThumb3Someknowledgeofbasicarithmeticisdesirable Unit5 PartII SectionII WordBank Unit5 PartII SectionII Task1 Notes Unit5 PartII SectionII Task1 FHATheFederalHousingAdministration FHA isaUnitedStatesgovernmentagencycreatedaspartoftheNationalHousingActof1934 Insuredloansmadebybanksandotherprivatelendersforhomebuildingandhomebuying Thegoalsofthisorganizationare toimprovehousingstandardsandconditions toprovideanadequatehomefinancingsystemthroughinsuranceofmortgageloans andtostabilizethemortgagemarket Task1Completethefollowingpassageafterthesecondlistening Task Unit5 PartII SectionII Task1 TheFHAdoesnotmakeloans rather itinsuresmortgagesfromlenderswhowouldnototherwiseofferloanstothosewhocanmakedownpaymentsofonly1 percentandwhohavecreditscoresof2 orless BorrowerspayanFHAinsurancepremium3 ways withanupfrontfeethatcanbeincludedinthetotalloanamountandamortizedoverthelifeofthemortgage orinamonthlyfee 3 5 620 two Unit5 PartII SectionII Task1 Startingthisspring theadministrationsaid theupfrontfeejumpsto4 percentoftheloanamountfrom5 percent addingabout6 toa7 loan Monthlypremiumchargeswillessentiallybeunchanged Previously theFHAinsuredloansmadetothosewithcreditscoresoflessthan8 withnopenalties Startingearlythissummer theFHAsaid anyonewithacreditscorebelow9 mustmakeadownpaymentofatleast10 percent Creditscoresaretypicallymeasuredonascaleof11 to12 2 25 1 75 1 000 200 000 580 10 300 850 580 Unit5 PartII SectionII Task1 mostnon FHAlendersrequirelargerdownpaymentsandofferhigherratesifborrowershavecreditscoresbelow13 Butbecauselendershavenotbeenofferingloanstothosewithscoresof14 orbelow anotherFHAchangewillmostlikelyhaveabiggerimpact Thesellercouldpreviouslyfinanceupto15 percentofthehome sclosingcostswhentheborrowerusedanFHAmortgage Thatwilldropto16 percentthissummer 700 580 6 3 Task2Listentotheaudioclipandthendothefollowingexercise Task Unit5 PartII SectionII Task2 1 WhathappenedtoAshleyafterafamilydinneroflasagnaandspinachsalad A Ashleycamedownwithabadcold B Ashleycontractedbirdflu C Ashley skidneysfailed D Ashley sliverfailed 2 Whatwastheconsequenceofhercontractingthisdisease A Ashleywillonedayneedakidneytransplant B Ashleycannotgobacktoschool C Ashleywillbeonmedicationallherlife D Ashleywillbehandicappedforlife Unit5 PartII SectionII Task2 3 WhichstatementisTRUEaccordingtothisdialogue A TheArmstrongsdidnotlikesalads freshvegetablesandfreshfruitsbefore buttheylikethemnow B AshleyArmstrongwasonceahealthy rambunctiousboy C AshleyArmstrongdiedfromeatingthecontaminatedsalad D TheArmstrongstestifiedbeforeCongressaskingfortougherfoodsafetylaws 4 Whatisthereporter stoneinthisinterview A Sympathetic B Neutral C Critical D Emotional Unit5 PartII SectionII Task2 5 Howmanyyearsdoesatransplantedkidneyusuallylast A 15years B 20years C 25years D 30years 6 WhendidAshleycomedownwithanillness A LastJune B LastJuly C LastAugust D LastSeptember 7 AccordingtotheCNNreporter howmanyE colioutbreakshaveoccurredsince1995 A Morethantwelve B Morethantwothousand C Morethantwohundred D Morethantwenty Unit5 PartII SectionII Task2 8 WhenAshleygotsick howoldwasshe A Oneyearold B Twoyearsold C Threeyearsold D Fouryearsold 9 WhatisthefullnameofthediseaseattackingAshley A E coli0157 H6 B E coli0156 H7 C E coli0157 H7 D E coli0165 H7 10 HowmanytimesdidAshley smotherwashthefreshgreensbeforeeating A Once B Threetimes C Twice D Fourtimes Script Script Unit5 PartII SectionII Task2 Task3Writedownthenumbersyouhearintheblanks Task Unit5 PartII SectionII Task3 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Unit5 PartV 1 Previously theFHAinsuredloansmadetothosewithcreditscoresoflessthan580 withnopenalties Startingearlythissummer theFHAsaid anyonewithacreditscorebelow580mustmakeadownpaymentofatleast10percent Creditscoresaretypicallymeasured onascaleof300to850 mostnon FHAlendersrequirelargerdownpaymentsandofferhigherrates ifborrowershavecreditscoresbelow700 Butbecauselendershavenotbeenofferingloanstothosewithscoresof580orbelow anotherFHAchangewillmostlikelyhaveabiggerimpact Thesellercouldpreviouslyfinanceupto6percentofthehome sclosingcostswhentheborrowerusedanFHAmortgage Thatwilldropto3percentthissummer Task4Readthefollowingpassageaftertheclip Payparticularattentiontopronunciationandintonation Task Unit5 PartII SectionII Task3 PartIIIExtensiveListening INewsReports IIInterview IIILecture IVShortConversations VPassageListening VICompoundDictation WordBank Unit5 PartIII INewsReports I Notes 1 CellCellisapeer reviewedbiweeklyscientificjournalwhichpublishesexceptionalresearcharticlesincludingmolecularbiology genetics structuralbiology biochemistry cellbiology neurobiologyandimmunologyinanimals plants microbesandviruses 2 hippocampusHippocampusisamajorcomponentofthebrainsofhumansandothermammals Belongingtothelimbicsystem itisthoughttobethecentreofemotion memoryandtheautonomicnervoussystem playingimportantrolesinlong termmemoryandspatialnavigation Unit5 PartIII INewsReports I Byusingtheanalogybetweenthebrainandroomarrangement thespeakermeans A theoldstuffisusuallybetterthanthenewstuffB theworkingofthebrainissimilartothatoftheroomC acleanandtidyenvironmentisagoodwaytoboostmemoryD thebrainiscontinuouslyedgingouttheoldmemoriesfornewones2 Theresearchshowsthatthebrainfreesupspacebymeansof A makingnewneuronsB killingoldneuronsC preventingneuronsfrombeingcreatedD shufflingneuronsfromotherplacestothehippocampus Listentothereportandthendothefollowingexercise Unit5 PartIII INewsReports I 3 Thespeakerpointsoutthatthestudy A isbasedonthewrongassumptionB onlylooksatthehippocampusC isconductednotonhumansbutrodentsD hasonlydocumentedfearfulmemories Unit5 PartIII INewsReports I Script Script Unit5 PartIII INewsReports I WordBank Unit5 PartIII INewsReports II Notes Unit5 PartIII INewsReports II 1 TheBlackberryhaswonovertheiPhonemainlybecause A ofitswiderpricerangeB ithasmorefeaturesC ofreliableafter saleserviceD ofitsbetterreception2 WhichofthefollowingistrueabouttheBlackberryinIndonesia A TheBlackberrysellswellonlyamongthemostwealthy B OnecanbuyaBlackberryforlessthan 500 C ThepriceoftheBlackberryfluctuatesbetween 500and 900 D TheBlackberryisthecheapestmobilephoneonthegreymarket Listentothereportandthendothefollowingexercise Unit5 PartIII INewsReports II 3 Whydotheresearchgroupspredictthatwithinthenextyear halfoftheIndonesianpopulationwillhaveamobilephone A Becausenetworkinfrastructurewillbemoredeveloped B BecauseanewBlackberrywillbereleasednextyear C BecauseIndonesiadoesnothaveanyotherformsoftelecommunication D BecausethesephonesallowpeopleforwhomtheInternetistooexpensivetohavewebaccess Unit5 PartIII INewsReports II Script Script Unit5 PartIII INewsReports II WordBank Unit5 PartIII INewsReports III Listentothenewsreportandthenanswerthequestionsorallyafterwards Comparewhatyouhavesaidwiththereferenceanswersprovided Whatisthepurposeofsurgicalmasks Howarespecialrespiratorymasksdifferentfromsurgicalmasks Theypreventthewearerfromspreadinggermswhenhesneezescoughs Theyprotectthewearerfrominfectionbutareuncomfortabletowearforlongperiods Unit5 PartIII INewsReports III 3 Influenzaspreadsaroundtheworldseasonally resultinginthedeathsofbetween250 000and500 000peopleeveryyear Whataresomeeffectivewaystopreventitandthecommoncold Topreventthetransmissionofinfluenzaandcommoncold oneneedsgoodpersonalhabitssuchas washinghandsfrequentlywithsoapandwater notspitting avoidingclosecontactwithsickpeople wearingafacemaskifcaringforthesick stayingathomewhensick coveringone smouthwhensneezingorcoughing exercisingregularlytoimproveone simmunesystemOnecanalsogetaflushot Script Unit5 PartIII INewsReports III Script Unit5 PartIII INewsReports III WordBank Unit5 PartIII IIInterview Notes Unit5 PartIII IIInterview Whatcharacteristicismostimportantforthebamboousedinmakingbikes A Therightcolor B Therightlength C Therightflexibility D Therightthickness 2 Whatistherightorderformakingabamboobike A bake treatwithtorch frame wrapthejointsB treatwithtorch bake frame wrapthejointsC bake treatwithtorch wrapthejoints frameD treatwithtorch bake wrapthejoints frame Listentotheaudioclipandchoosethebestanswerstothefollowingquestions Unit5 PartIII IIInterview 3 Whatmightsurprisethenewownerafterhehasmadehisownbamboobike A Hewillhaveabumpierridethanonaregularbike B Otherbikerswillenvyhim C Hewillbeemotionallyattachedtohisnewly madebike D Hewilllearnaboutthemechanicsofhowabikeworks 4 Whatconcernssomepeopleaboutthewheelsofbamboobikes A Theirstyle B Theircost C Theirabilitytodriveonroads D Theirflexibility Unit5 PartIII IIInterview 5 WhichofthefollowingisNOTtrueaboutthegrowinginterestinbamboobikes A Thebamboobike makingclassesinBrooklynarefilled B SomebamboobikebuildersarefromEuropeancountries C Theinterestinbamboobikeiswidelybelievedtodieoutsoon D Amateurbikerscanmakethemwithnopreviousexperience Script Unit5 PartIII IIInterview Script Unit5 PartIII IIInterview Task1SpotDictationDirections Inthispassage thereare15blanks Fillinthemissingwordsafterwatchingthevideocliptwice Task LessthanthreemonthsagoatplatformhearingsinSaltLakeCity IaskedtheRepublicanPartytolifttheshroudofsilencewhichhasbeendrapedovertheissueofHIVandAIDS Ihavecometonighttobringoursilencetoanend Ibear1 not