新核心大学英语B版听说教程1unit5

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:,Unit5PartISectionILead-inquestions,WordBank,Unit5PartISectionIWordBank,Notes,Unit5PartISectionINotes,Task1Watchthevideoclipandthendecidewhetherthefollowingstatementsaretrueorfalse.,Task,Unit5PartISectionITask1,1.TheancientGreekswereacclaimedasgreatthinkersandobserversbecausetheytestedtheirideasinasystematicandscientificway.2.Thescientificmethodiswidelyusedindailylife,fromtroubleshootingcarproblemstomajorscientificdiscoveries.,(Theydidnotbelieveintestingtheirideasinanorderly,unbiasedway.,F,_,T,_,3.FrenchscientistLouisPasteurwasthefirstonetoapplythescientificmethod.4.Therewasacontroversyoverwheremicrobescomefrom.5.Pasteurconductedanexperimenttoprovethatmicrobesarecreatedbyaspeciallifeforceintheair.,(Butthevideoonlyclaimsthatheconductedanexperimentwithallthefeaturesofscientificmethod.),(Herejectedthistheoryandthepurposeofhisexperimentwasdonetodisprovethisidea.),T,_,F,_,F,_,Unit5PartISectionITask1,Pasteurbelievedthat.2.Hehypothesizedthat.3.Heplacedthebrothinandheateditto.,Task2Watchthevideoclipforasecondtimeandthencompletethefollowingsentences.,microbescouldbecarriedby,butnotcreatedbytheair,_,Task,Unit5PartISectionITask2,aflaskofbrothwouldstaysterileaslongasnoairbornemicrobescouldgetinandusethenutrientsinthebrothtomultiply,_,forceoutalltheair,_,aspecialswanneckflask,_,4.Heobservedthecooledbrothandfoundthatwhenhebrokeofftheneckoftheflask.5.Pasteurconcludedthat.,Unit5PartISectionITask2,airborneobescouldgetinandthebrothbecamecloudyastheymultiplied,_,hisexperimentprovedhishypothesis/heshouldaccepthishypothesisratherthanrejectingormodifyingit,_,Task3WatchthevideoclipagainandthenworkinpairstodescribetheexperimentPasteurperformed,basedonthevideoclipandthefollowingpictures.Afterwards,eachgroupwillgiveabriefreporttotheclass.,Task,Unit5PartISectionITask3,【Script】,Script,Unit5PartISectionIScript,WordBank,Unit5PartISectionIIWordBank,Notes,Unit5PartISectionIINotes,1.Ahypothesisis_.A.aneducatedguessorpredictionB.adiscussionafterdataiscollectedC.aconclusiondrawnafterobservationsandexperimentsD.ascientificmethodusedtoproveordisproveonesbelief2.Theexperimentisintendedtotestthehypothesis,“_”A.doplantsneedlighttogrow?B.plantsneedlighttogrow.C.theplantswithoutlightdontlookhealthy.D.withoutlight,theplantswilleventuallydie.,Task1Watchthevideoclipandchoosethebestanswerstothefollowingquestions.,Task,Unit5PartISectionIITask1,3.Thewaytotesttheaccuracyofanexperimentsresultsisto_.A.repeattheexperimentB.findabasicexperimentalmodelC.keeptryingdifferentapproachesandcollectingdataD.changethevariablesandrepeattheexperiment4.WhichofthefollowingisNOTmentionedasthevariablesthataffectthegrowthofplants?A.Thepresenceorabsenceoflight.B.Thetemperatureoftheair.C.Thetypeofsoil.D.Thequalityofseed.,Unit5PartISectionIITask1,5.Ifthedatapartlysupportthehypothesis,researchersshould_.A.extendtheexperimentaltimeB.haveabasicexperimentalmodelC.changethehypothesisandredotheexperimentD.giveuptheoldhypothesisandcomeupwithabrandnewone,Unit5PartISectionIITask1,Task2Watchthevideoclipandrearrangethesentencesintheorderthatyouhearthem.Brieflydescribeeachpicturetoillustratehowthescientificmethodisapplied.,Task,Unit5PartISectionIITask2,a,b,c,d,e,f,Unit5PartISectionIITask2,dFirstwemadesomeobservationsandfoundmoreplantsseemtogrowinareasthatreceivelightthanindarkplaces.,cWeformulatedahypothesisthatplantsneedlighttogrow.,eTotestourhypothesis,wedesignedanexperimenttomakesurethattheplantsintwosidesoftheboxgrowinthesameenvironmentbutgetdifferentlightexposure.,fWeobservedthegrowthoftheplantsandcollecteddataweneed.,bWefoundthatthesidethatreceivedlightismoredensewithgreenleaveswhilethesidewithlittlelightgrewstraightwithyellow-brownleaves.,aWedrewaconclusionthattheexperimentpartlysupportedourhypothesis,andweneedtomodifyourhypothesisandexperimentagain.,1._,2._,3._,4._,5._,6._,Task3Applythescientificmethod,aslearnedfromthevideoclip,toanexperimentthatyouwouldliketoperform.Aftertheexperiment,explainthewholeprocesstoyourpartner.Payattentiontothesequenceoftheexperiment.,Task,Unit5PartISectionIITask3,【Script】,Example:YoumayconductanexperimenttoproveArchimedeslaworGalileoslawoffree-fall.,Script,Unit5PartISectionIIScript,WordBank,Unit5PartISectionIIIWordBank,Note,Unit5PartISectionIIINotes,BeforeMicrosoftcamealong,ealong:toappearorarriveForexample:Abusshouldcomealonganyminutenow.Iwilltakewhatevercomesalong.Igaveupscubadivingwhenmyfirstchildcamealong.,Task1Listentotheaudioclipandchoosethebestanswerstothequestionsbelow.,Task,Unit5PartISectionIIITask1,1.Microsoftwasfoundedwhenthecompetitionamongsoftwarecompanieswasintense.2.Microsoftsmaincompetitorsarenotsoftwarebuthardwarecompanies.,(TherereallywasnosoftwareindustrybeforeMicrosoft.),F,_,T,_,3.BooksandthePCwerehugelypopularwhentheyfirstappearedbecauseoftheirpositiveeffects.4.ThePCbusinessisafunbusinessmainlybecauseitisthemostprofitable.5.BillGatesisveryconfidentaboutthefutureofdigitaldevices.,(Whentheycamealong,itishardforpeopletoacceptthembecausetheyknewlittleabouttheirpositiveeffects.),(Itisafunbusinessbecausecompaniescandevelopnewversionsofsoftwarebasedoncustomerfeedback.),F,_,T,_,F,_,Unit5PartISectionIIITask1,Task2Directions:Listentotheaudioclipagainandworkoutaninterviewinquestion-and-answerform.Practicewithyourpartner.,Task,Unit5PartISectionIIITask2,Forreference:,【Script】,Script,Unit5PartISectionIIIScript,PartIIListeningandSpeakingStrategies,SectionIPronunciationSkillIntonation,SectionIIListeningSkillListenforNumbers,Intonationiscrucialforcommunication.Intonationisabouthowonesaysthings,ratherthanwhathesays.Withoutintonation,itisimpossibletounderstandtheexpressionsandthoughtsthatgowithwords.Awarenessofintonationaidscommunication.Incorrectintonationcanresultinmisunderstandings,speakerslosinginterestoreventakingoffence!GeneralrulesStatementsusuallyhaveafallingtoneattheend.Thesixquestionwords(who?what?when?where?why?how?)alsohaveafallingtoneattheend.Yes/Noquestions(questionsonecananswerwith“yes”or“no”)usuallyhavearisingtone.,PronunciationSkillIntonation,Unit5PartIISectionI,Unit5PartIISectionI,Forexample:1.Howdidyouspendyourvacation?(fallingtone)2.IwenttoVenicewithmyfianclastsummer.(fallingtone)3.Wasityourownchoice?(risingtone)Yes,indeed.(fallingtone)4.Areyougoingtotheseashorethisspring?(risingtone),Task1Readthefollowingsentenceswiththecorrectintonation.,Task,Unit5PartIISectionITask1,1.Thatisthepersonwhorobbedthebank!(fallingtone)2.Doyoumeanthemanwiththeblackpants?(risingtone)3.No.Thewomanwiththeplasticbag.(fallingtone)4.Areyousayingthatwearegoingtocancelthisproject?(risingtone)5.Therearenotmanyvisitorsthistimeofyear.(fallingtone)6.Everyoneisgoingswimming.Dontyouwanttocomealong?(risingtone),Unit5PartIISectionITask1,7.Doyoumeanthelargeststateinareaorinpopulation?(risingtone)8.Helookshappy,doeshenot?(fallingtone)9.Howawfulitis!(fallingtone)10.Motherhasgonetotown.(fallingtone),Task2Listentothefollowingtongue-twistersandthenrepeat.,Task,1.Sixty-sixsickchicks2.Thesixthsicksheikssixthsheepssick.3.Shesellsseashellsbytheseashore.4.Doyouagree,ifyouarefree,tocometoteawithmebythesea?5.ItsBillyskittensittinginthekitchen.6.Timsasthinasapin,butitisntasintobethin.7.Willyousitstill,Bill?Illsitasstillasahill.8.AnEnglishfishermanwishestogetafoolishfishforacolddish.9.AnnsentAndytenhensandAndysentAnntenpens.10.Springisshowery,flowery,bowery.Summerishoppy,croppy,poppy.Autumniswheezy,sneezy,freezy.Winterisslippy,drippy,nippy.,Unit5PartIISectionITask2,Numbersareimportantindailylife.Whengoingshopping,oneneedstocalculateprices.Inarestaurantoneneedstocalculateandpaythebillaftereating.Whenbookingaconcertoraflight,ormakinganappointmentoradate,timeisabigissue.Inthebankonecalculatesinterestratesandthebalanceafterwithdrawingordepositingmoney.Agoodsenseofnumbersisthereforeindispensabletosmootheverydaycommunications.,ListeningSkillListenforNumbers,Unit5PartIISectionII,RuleofThumb1BefamiliarwithcardinalandordinalnumbersinEnglishandknowhowtocountnumberswithmultipledigitsinEnglish.RuleofThumb2Knowhowtoexpresstime,prices,andrates.RuleofThumb3Someknowledgeofbasicarithmeticisdesirable.,Unit5PartIISectionII,WordBank,Unit5PartIISectionIITask1,Notes,Unit5PartIISectionIITask1,FHATheFederalHousingAdministration(FHA)isaUnitedStatesgovernmentagencycreatedaspartoftheNationalHousingActof1934.Insuredloansmadebybanksandotherprivatelendersforhomebuildingandhomebuying.Thegoalsofthisorganizationare:toimprovehousingstandardsandconditions;toprovideanadequatehomefinancingsystemthroughinsuranceofmortgageloans;andtostabilizethemortgagemarket.,Task1Completethefollowingpassageafterthesecondlistening.,Task,Unit5PartIISectionIITask1,TheFHAdoesnotmakeloans;rather,itinsuresmortgagesfromlenderswhowouldnototherwiseofferloanstothosewhocanmakedownpaymentsofonly1)percentandwhohavecreditscoresof2)orless.BorrowerspayanFHAinsurancepremium3)ways:withanupfrontfeethatcanbeincludedinthetotalloanamountandamortizedoverthelifeofthemortgage,orinamonthlyfee.,3.5,_,620,_,two,_,Unit5PartIISectionIITask1,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,_,Unit5PartIISectionIITask1,mostnon-FHAlendersrequirelargerdownpaymentsandofferhigherratesifborrowershavecreditscoresbelow13).)Butbecauselendershavenotbeenofferingloanstothosewithscoresof14)orbelow,anotherFHAchangewillmostlikelyhaveabiggerimpact.Thesellercouldpreviouslyfinanceupto15)percentofthehomesclosingcostswhentheborrowerusedanFHAmortgage.Thatwilldropto16)percentthissummer.,700,_,580,_,6,_,3,_,Task2Listentotheaudioclipandthendothefollowingexercise.,Task,Unit5PartIISectionIITask2,1.WhathappenedtoAshleyafterafamilydinneroflasagnaandspinachsalad?A.Ashleycamedownwithabadcold.B.Ashleycontractedbirdflu.C.Ashleyskidneysfailed.D.Ashleysliverfailed.2.Whatwastheconsequenceofhercontractingthisdisease?A.Ashleywillonedayneedakidneytransplant.B.Ashleycannotgobacktoschool.C.Ashleywillbeonmedicationallherlife.D.Ashleywillbehandicappedforlife.,Unit5PartIISectionIITask2,3.WhichstatementisTRUEaccordingtothisdialogue?A.TheArmstrongsdidnotlikesalads,freshvegetablesandfreshfruitsbefore,buttheylikethemnow.B.AshleyArmstrongwasonceahealthy,rambunctiousboy.C.AshleyArmstrongdiedfromeatingthecontaminatedsalad.D.TheArmstrongstestifiedbeforeCongressaskingfortougherfoodsafetylaws.4.Whatisthereporterstoneinthisinterview?A.Sympathetic.B.Neutral.C.Critical.D.Emotional.,Unit5PartIISectionIITask2,5.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.,Unit5PartIISectionIITask2,8.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.HowmanytimesdidAshleysmotherwashthefreshgreensbeforeeating?A.Once.B.Threetimes.C.Twice.D.Fourtimes.,【Script】,Script,Unit5PartIISectionIITask2,Task3Writedownthenumbersyouhearintheblanks.,Task,Unit5PartIISectionIITask3,1_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_,Unit5PartV1,Previously,theFHAinsuredloansmadetothosewithcreditscoresoflessthan580,withnopenalties.Startingearlythissummer,theFHAsaid,anyonewithacreditscorebelow580mustmakeadownpaymentofatleast10percent.(Creditscoresaretypicallymeasuredonascaleof300to850;mostnon-FHAlendersrequirelargerdownpaymentsandofferhigherratesifborrowershavecreditscoresbelow700.)Butbecauselendershavenotbeenofferingloanstothosewithscoresof580orbelow,anotherFHAchangewillmostlikelyhaveabiggerimpact.Thesellercouldpreviouslyfinanceupto6percentofthehomesclosingcostswhentheborrowerusedanFHAmortgage.Thatwilldropto3percentthissummer.,Task4Readthefollowingpassageaftertheclip.Payparticularattentiontopronunciationandintonation.,Task,Unit5PartIISectionIITask3,PartIIIExtensiveListening,INewsReports,IIInterview,IIILecture,IVShortConversations,VPassageListening,VICompoundDictation,WordBank,Unit5PartIIIINewsReportsI,Notes,1.CellCellisapeer-reviewedbiweeklyscientificjournalwhichpublishesexceptionalresearcharticlesincludingmolecularbiology,genetics,structuralbiology,biochemistry,cellbiology,neurobiologyandimmunologyinanimals,plants,microbesandviruses.2.hippocampusHippocampusisamajorcomponentofthebrainsofhumansandothermammals.Belongingtothelimbicsystem,itisthoughttobethecentreofemotion,memoryandtheautonomicnervoussystem,playingimportantrolesinlong-termmemoryandspatialnavigation.,Unit5PartIIIINewsReportsI,Byusingtheanalogybetweenthebrainandroomarrangement,thespeakermeans_.A.theoldstuffisusuallybetterthanthenewstuffB.theworkingofthebrainissimilartothatoftheroomC.acleanandtidyenvironmentisagoodwaytoboostmemoryD.thebrainiscontinuouslyedgingouttheoldmemoriesfornewones2.Theresearchshowsthatthebrainfreesupspacebymeansof_.A.makingnewneuronsB.killingoldneuronsC.preventingneuronsfrombeingcreatedD.shufflingneuronsfromotherplacestothehippocampus,Listentothereportandthendothefollowingexercise.,Unit5PartIIIINewsReportsI,3.Thespeakerpointsoutthatthestudy_.A.isbasedonthewrongassumptionB.onlylooksatthehippocampusC.isconductednotonhumansbutrodentsD.hasonlydocumentedfearfulmemories,Unit5PartIIIINewsReportsI,【Script】,Script,Unit5PartIIIINewsReportsI,WordBank,Unit5PartIIIINewsReportsII,Notes,Unit5PartIIIINewsReportsII,1.TheBlackberryhaswonovertheiPhonemainlybecause_.A.ofitswiderpricerangeB.ithasmorefeaturesC.ofreliableafter-saleserviceD.ofitsbetterreception2.WhichofthefollowingistrueabouttheBlackberryinIndonesia?A.TheBlackberrysellswellonlyamongthemostwealthy.B.OnecanbuyaBlackberryforlessthan$500.C.ThepriceoftheBlackberryfluctuatesbetween$500and$900.D.TheBlackberryisthecheapestmobilephoneonthegreymarket.,Listentothereportandthendothefollowingexercise.,Unit5PartIIIINewsReportsII,3.Whydotheresearchgroupspredictthatwithinthenextyear,halfoftheIndonesianpopulationwillhaveamobilephone?A.Becausenetworkinfrastructurewillbemoredeveloped.B.BecauseanewBlackberrywillbereleasednextyear.C.BecauseIndonesiadoesnothaveanyotherformsoftelecommunication.D.BecausethesephonesallowpeopleforwhomtheInternetistooexpensivetohavewebaccess.,Unit5PartIIIINewsReportsII,【Script】,Script,Unit5PartIIIINewsReportsII,WordBank,Unit5PartIIIINewsReportsIII,Listentothenewsreportandthenanswerthequestionsorallyafterwards.Comparewhatyouhavesaidwiththereferenceanswersprovided.,Whatisthepurposeofsurgicalmasks?Howarespecialrespiratorymasksdifferentfromsurgicalmasks?,Theypreventthewearerfromspreadinggermswhenhesneezescoughs.,_,Theyprotectthewearerfrominfectionbutareuncomfortabletowearforlongperiods.,_,Unit5PartIIIINewsReportsIII,