新核心大学英语B版听说教程3-Unit-3

Unit3FoodSafetyInthisunityouwill:1.learnaboutfoodsafety;2.familiarizeyourselfwiththewordsandexpressionsrelatedtothethemeoftheunit;3.practiceevaluatingandjudginginformationfromlecturesandlearntounderstanddetails,methodsandattitudes;4.enhancelisteningskillsthroughnon-theme-relatedaudioandvideomaterials;5.learntouseproperandappropriateexpressionsandsentencestructurestogivepresentations.LearningobjectivesPartITheme-RelatedActivitiesPartIIListeningStrategiesPartIIIExtensiveListeningPartIVCommunicationSkillsPartVAssessmentLogPartITheme-RelatedActivitiesSectionILectureISectionIILectureIISectionIIILectureIII1.Whatdoyouknowaboutfoodadditives?2.Doyouthinkfoodadditivesshouldbetotallybanned?Lead-inquestions:Unit3》PartI》SectionI》Lead-inquestionsWordBankadditive/ˈædətɪv/n.添加剂，添加物distinction/dɪˈstɪŋkʃn/n.区分ingredient/ɪnˈɡriːdiənt/n.成分，配料substance/ˈsʌbstəns/n.物质compound/ˈkɒmpaʊnd/n.复合物；混合物agent/ˈeɪdʒənt/n.（化学）剂artificial/ˌɑːtɪˈfɪʃl/adj.人工的；人造的；假的texture/ˈtekstʃə(r)/n.口感preservation/ˌprezəˈveɪʃn/n.保存scrutinize/ˈskruːtənaɪz/v.细致审查Unit3》PartI》SectionI》WordBankrestrict/rɪˈstrɪkt/v.（以法规）限制withdraw/wɪðˈdrɔː/v.停止提供；不再给予toddler/ˈtɒdlə(r)/n.学步的儿童；刚学会走路的孩子tantrum/ˈtæntrəm/n.（尤指儿童）耍脾气，使性子susceptible/səˈseptəbl/adj.易受影响（或伤害等）的；mild/maɪld/adj.轻微的adverse/ˈædvɜːs/adj.不利的，有害的MSGmonosodiumglutamate【生化】谷氨酸单钠（治肝错迷药）；味精register/ˈredʒɪstə(r)/n.登记；注册Unit3》PartI》SectionI》WordBankNotesUnit3》PartI》SectionI》Notes1.EuropeanUnionAneconomicandpoliticalassociationofEuropeancountriesformedafterWorldWarIItoreducetradebarriersandincreasecooperationamongitsmembers.2.ErythrosineAlsoknownasRedNo.3.Itischerry-pinksynthetic,primarilyusedforfoodcoloring.3.GreenDye#1Itisakindofsyntheticusedforfoodcoloring.Ithasbeenwithdrawnfromuse.Task1Watchthevideoclipandthendecidewhetherthefollowingstatementsaretrueorfalse.Unit3》PartI》SectionI》Task11.Moreandmoreofthefoodwebuynowadayshavebeenprocessedindifferentways.2.Thereisalwaysaclear-cutdistinctionbetweenadditivesandingredients.3.Additivesareediblebythemselves.4.Thereisnoagreementonthedefinitionoffoodadditivesamongcountries.5.TheUnitedStateslistsover2,000compoundsasfoodadditives.TF______F___T___T___Task2Watchthevideoclipforthesecondtimeandthencompletethefollowingsentences.Unit3》PartI》SectionI》Task21.Additivesareinfoodandthey’renotsubstancesthatyou’dnormallyeatbythemselves.2.TheUnitedStateslistsover2,000compoundsasfoodadditives,which,elsewhere,mightbedescribedasorjustas.3.Somepeopleworry,butthis.infairlysmallquantitiesprocessingagentsingredientswhetheradditivesarenaturalorartificialhasnothingtodowithhowsafetheyareUnit3》PartI》SectionI》Task24.Additivesareputinfoodfor,,,,and.5.You’llnoticewhenyoulookatthelabels,thatsomeprocessedfoodscontainanumberofadditives—all.6.Inrecentyearsfoodadditiveshavebeenveryclosely.7.Tobeonthesafeside,suchadditiveshaveeitherorfromuse.taste____appearance_________texture______preservation__________convenience__________performingdifferentfunctionsscrutinizedbeenrestrictedwithdrawUnit3》PartI》SectionI》Task28.Thepeoplewhohavingproblemsfromfoodadditivesareasmallpercentageofthepopulation.9.Peoplewithhavetobeverycarefulaboutwhattheyeat.10.Additivescanalsoprovide.aresusceptibletofoodintoleranceessentialvitaminsandminerals1.Whatarefoodadditives?Definetheminyourownwords.2.Whyareadditivesputinfood?Dotheseadditivesexertabadinfluenceonpeople’shealth?3.RecallincidentsinChinawhenfoodadditivesharmedpeople’shealthandalsoshareyouropinionsabouttheseincidents.4.Whatshouldthegovernmentdotopreventfoodadditivesfromharmingpeople’shealth?Task3Watchthevideoclipagainandthenhaveagroupdiscussionbasedonthefollowingquestions.Afterthediscussion,eachgroupwillgiveabriefreporttotheclass.Unit3》PartI》SectionI》Task3【Script】ScriptUnit3》PartI》SectionI》ScriptWe¡¯reputtingfoodintoourselvesallthetime.Wehaveto,otherwisewewouldn¡¯tliveverylong,butmoreandmoreofthefoodthatwebuynowadayshasbeenprocessedinvariouswaysandmuchofitcontainsfoodadditives.Almosteverytimewecook,weaddfoodstootherfoods.Socouldwecallanytypeoffoodanadditive?Notquite¡ªThereisadistinctionbetweenadditivesandwhatwegenerallycallingredients,althoughsometimesit¡¯salittleunclear.Additivesareinfoodinfairlysmallquantitiesandthey¡¯renotsubstancesthatyou¡¯dnormallyWordBankpissoff使生气；使厌烦（美）；滚（英）lo-and-behold（引起对令人惊讶或讨厌的事的注意）哎哟，你瞧；嗨，真想不到;之乎者也的语气micronutrient/ˌmaɪkrəʊˈnjuːtriənt/n.微量营养素macronutrient/ˌmækrəʊˈnjuːtriənt/n.宏量营养素Unit3》PartI》SectionII》WordBankstrap/stræp/v.用带子系（或捆、扎、扣）好screenshot/skriːnʃaːt/截图obesity/əʊˈbiːsiti/n.肥胖过度obese/əʊˈbiːs/adj.虚胖的；病态肥胖的bifurcate/ˈbaɪfɜːkeɪt/v.使分枝；使分叉underpinning/ˌʌndəˈpɪnɪŋ/n.支撑consolidate/kənˈsɒlɪdeɪt/v.使加强；使巩固precipitously/prɪˈsɪpɪtəsli/adv.陡然地，出乎意料地Unit3》PartI》SectionII》WordBanksubsistence/səbˈsɪstəns/n.勉强维持生活exodus/ˈeksədəs/n.（大批人同时）离开，外出，出去detrimental/ˌdetrɪˈmentl/adj.有害的；不利的diabetes/ˌdaɪəˈbiːtiːz/n.糖尿病；多尿症fructose/ˈfrʌktəʊs/n.果糖，左旋糖syrup/ˈsɪrəp/n.糖浆obsessed/əbˈsest/adj.着迷的，一门心思的align/əˈlaɪn/v.使一致Unit3》PartI》SectionII》WordBankdisparate/ˈdɪspərət/adj.迥然不同的；无法比的petrochemical/ˌpetrəʊˈkemɪkl/adj.石化的fertilizer/ˈfɜːtəlaɪzə(r)/n.肥料externality/ˌekstəːˈnælɪti/n.