新一代大学英语视听说教程1 U2ppt课件.ppt

FoodandHealth Unit2 Warm up 01 ListeningandSpeaking 02 ViewingandSpeaking 03 CONTENTS Project 04 1 Warm up Workinpairsonthefollowingactivities Readthefoodtermsandthedescriptionscarefully Thenmatchthedescriptionswiththeterms Step1 Warm up processedfood Warm up 1Itisfoodthatisgrownorproducedwithoutsynthetic 人造的 pesticidesorchemicalfertilizers 2Itisfoodthatisspeciallytreatedtochangecolorandkeepfresh etc 3Itisfoodthatisgrownwithinareasonabledistancefromwhereitiseaten Itdoesnotspenddaysorweekstobetransportedandisthereforegenerallyfresher 4ItisfoodthatisproducedfromorganismsthathavehadspecificchangesintroducedintotheirDNAusingthemethodsofgeneticengineering 5Itisfoodthatisnotprocessedorrefined orthatisprocessedandrefinedaslittleaspossible beforebeingconsumed Itisfoodinitsnaturalstate organicfood localfood GMfood wholefood Workinpairsonthefollowingactivities Listthefoodsthatyouateforbreakfast lunchandsupperyesterday Foreachofthem decidewhetheritisgeneticallymodified local whole processed ororganic Step2 Warm up Referenceanswers Warm up AdditionalActivity Readthefollowingquotesabouthealthyeating Trytoexplainthequoteswithexamplesoryourpersonalexperiences 1Thosewhothinktheyhavenotimeforhealthyeatingwillsoonerorlaterhavetofindtimeforillness EdwardStanley2Theonlywaytokeepyourhealthistoeatwhatyoudon twant drinkwhatyoudon tlike anddowhatyou drathernot MarkTwain Warm up Referenceanswers 1Mainpoints Healthyeatingisnotjustaboutkeepingahealthyweight itaffectsone stotalstateofwell being Pooreatinghabitsarelinkedtoalargenumberofdiseasessuchasheartdisease strokeanddiabetes Myfather forexample alwaysbuysorganicfoodevenifitismoreexpensive Hetriestoensureahealthyandbalanceddietforthefamily 2Mainpoints Tostayhealthy youwillhavetoeatthosevegetablesandfruitswhichyoumightnotlikeasmuchasjunkfood Youwillhavetogetupearlyinthemorning exerciseregularly ortakethestairsinsteadoftheelevator Inotherwords ittakessomeefforttobehealthy Warm up 2 ListeningandSpeaking TopicOneGeneticallymodifiedfood 1ListentoaconversationonGMfoodanddecidewhetherthestatementsaretrueorfalse Write T for true and F for false ListeningandSpeaking Geneticallymodifiedfood Listeningandunderstanding 1ThemanisinfavorofGMfoodbutthewomanisagainstit 2ThewomanthinksthatsheneedstodomorereadingonGMfood 3ThemanthinksthatcontrolsonGMfoodinmostcountriesareloose 4ThemanthinksthatthewomaniscautiousaboutGMfood 5ThewomandoesnotlikethefactthatsomefoodcompaniesareusingherfortheirexperimentsonGMfood 6Thewomanfinallyagreeswiththeman T F F F T F 2Listentotheconversationagainandcompletethetablewithwhatyouhear ListeningandSpeaking Geneticallymodifiedfood Listeningandunderstanding Geneticallymodifiedfood Listeningandunderstanding safer tightercontrols vegetables extinct decreasinginnumbers poorcountries wholeecosystem ListeningandSpeaking 3AlthoughGMfoodhasbeenonsupermarketshelvesforoveradecade thereisstillextensivecontroversyaboutit Workintwogroupsandholdaninformaldebateonthetopic IsGMfoodbeneficial Youcanbaseyourargumentonwhatyou veheardfromtheconversation yourownexperienceandreasoning andwhatyou velearnedfrombooks newspapers ortheInternet ListeningandSpeaking Geneticallymodifiedfood Thinkingandspeaking ListeningandSpeaking Geneticallymodifiedfood Thinkingandspeaking TopicTwoTruthaboutorganicfoodlabels 1Understandingfoodlabelscanhelpyoumakehealthydecisionswhenyoushopforfood Nowlistentoaprogramtwiceandcompletethetablewithwhatyouhear ListeningandSpeaking Truthaboutorganicfoodlabels Listeningandunderstanding ListeningandSpeaking Truthaboutorganicfoodlabels organic lessthan atleast 95 100 theoutdoors naturaldiet beingkeptinsmallcages beingraised 2Theprogramyouhavelistenedtoisaboutfoodlabels ThechartbelowshowswhatconsumerslookforonfoodlabelsinAmerica Workingroupstodescribethechartbrieflyandgivecommentsontheirclaims ListeningandSpeaking Thinkingandspeaking Truthaboutorganicfoodlabels ListeningandSpeaking Thinkingandspeaking Truthaboutorganicfoodlabels ListeningandSpeaking Thinkingandspeaking Herearesomeusefulexpressionsfordescribingthedata Ofallthepeoplewhowerequestioned interviewed Opinionsaredividedabout Approximatelyhalfthoserespondentssaythat Themajorityofpeoplethinkthat Nearlytwooutofthreepeoplereportthat Truthaboutorganicfoodlabels ListeningandSpeaking Referenceanswers Thechartshowswhatconsumerslookforwhenitcomestofoodlabeling Whenshoppingforfood ofallthepeoplewhowereinterviewed abouttwooutofthreereportthattheylookforthewords Locallygrown onlabels while59 checktoseeiftheproductstheyarebuyingarenatural Halfofthepeoplesaythattheywouldlookforinformationaboutartificialgrowthhormonesonfoodlabels Otherkeywordsthatconsumerslookforonfoodlabelsinclude Pesticide free 49 Organic 49 Noartificialingredients 48 andsoon Accordingtothechart consumerscarealotabouthowtheirfoodisproduced Theyarelookingforfoodthatisproducedlocallyandinanenvironmentally friendlyway Truthaboutorganicfoodlabels TopicThreeMeatornot Fourtypesofvegetarians 1Dependingonwhattheyeat vegetarianscanbedividedintodifferenttypes Nowlistentoatalkaboutthefourtypesofvegetariansandtickthefoodtheyeat ListeningandSpeaking Meatornot Fourtypesofvegetarians Listeningandunderstanding 2Listentothetalkagainandcompletetheanswerstothequestionswithwhatyouhear ListeningandSpeaking Meatornot Fourtypesofvegetarians Listeningandunderstanding 1Whataredairyproducts Theyrefertothingslike 2Whatwillvegansuseasasourceofomega 3 Theywillusea orflaxseedinsteadof 3Whyaresemi vegetariansnottrulyvegetarians Becausetheystill occasionallyorsometypeofanimalproduct milk cheese yoghurt marinesourcelikemarinealgae fishoilsupplements eatmeat 3Thetalkyouhavelistenedtotellsaboutvegetariansandtheirdiet Nowworkinpairsonthefollowingactivities ListeningandSpeaking Thinkingandspeaking Discussthequestions 1Whydosomepeoplechoosetobecomevegetarians 2Whatarethehealthbenefitsofavegetariandiet 3Whatarethehealthrisksinbecomingavegetarian Step1 Meatornot Fourtypesofvegetarians ListeningandSpeaking Thinkingandspeaking 1Whydosomepeoplechoosetobecomevegetarians Mostofthereasonsfallintooneofthefollowingcategories Healthconcerns Vegetariansbelievethatahealthyvegetariandietcansignificantlydecreasetheriskofmanychronicdiseasessuchasdiabetesandheartdisease Religiousrestrictions SomebelieversofsomereligionssuchasBuddhismmayrefusetoeatmeat Environmentalconcerns Theyassertthatthelarge scalemeatandpoultryproductionisenvironmentallyunsustainable Animalrightsissues Ethicalvegetariansareconcernedaboutanimalcruelty Theysaythatanimalsaretreatedhorriblypriortoandduringslaughter Meatornot Fourtypesofvegetarians ListeningandSpeaking Thinkingandspeaking 2Whatarethehealthbenefitsofavegetariandiet Somepeoplebelievethatvegetariansareatalowerriskfordevelopingheartdisease obesity diabetes hypertensionandcertaincancers Thisisbecauseahealthyvegetariandietistypicallylowinfatandhighinfiber Meatornot Fourtypesofvegetarians 3Whatarethehealthrisksinbecomingavegetarian Therecanberiskslinkedtovegetariandietsassociatedwithalackofnutrients Ifvegetariansarenotcarefultogetallthenecessarynutrients theycouldexperiencealackofprotein iron zinc calcium vitaminB12 vitaminDandomega 3fattyacids ListeningandSpeaking Thinkingandspeaking Readthesituation Thenrole playaconversationaboutvegetarianismbasedonyouranswersinStep1 StudentAYouareavegetarianandyounevereatmeat Youthinkitisbarbaric 野蛮的 toeatmeatandyouareconvinceditismuchhealthiernottoeatanymeatproducts StudentBYouloveeatingmeatandcan timagineamealwithoutanymeatinit Youthinkthatpeopleneedtoeatmeattogetenoughproteinsandkeephealthy Step2 Meatornot Fourtypesofvegetarians ListeningandSpeaking Thinkingandspeaking ReferenceanswersB Therearealotofdifferencesinwhatwe vegotforlunchtoday I vegotsomeporkandyouhaveavegetariansaladwithnuts Sowhydoyoubecomeavegetarian A Idon teatmeatbecauseIthinkitiswrongtokillanimalsfortheirmeat Doyouknowthat55billionanimalsarekilledeveryyearformeatproduction B Yes buttheseanimalsarebredforfood Ithinkmeatproductionissimilartoproducinganyotherfoodproduct Wehumansshouldn tgettoosentimentalabouttheanimals Besides weneedtoeatmeatinordertostayhealthy Meatornot Fourtypesofvegetarians ListeningandSpeaking Thinkingandspeaking A Doyoureallybelievethateatingmeatwouldhelpyoustayhealthy Researchshowsthatvegetariansareatalowerriskfordevelopingmanydiseasesincludingsomeofthemostcommoncancers heartdisease stroke obesityanddiabetes Infact thisisanotherreasonwhyIchoosetobecomeavegetarian B Buthumansareomnivores Wefunctionbestwhenweeatbothanimalsandplants Therearesomenutrientsthatcanonlybegottenfromanimals TakevitaminB12forexample Itisanimportantvitaminformanybasicbodilyfunctionssuchasbloodcellproductionandpropernervefunctioning butitisnotfoundinmostoftheplants Infact B12deficiencyisverycommoninvegans Meatornot Fourtypesofvegetarians ListeningandSpeaking Thinkingandspeaking A Yes vegetarians especiallyvegans canbeexposedtosomehealthrisksbecauseofourmeatlessdiet Sowecantakesomefoodsorsupplementstocompensateforthemissingnutrientsinourdiet B Arethereotherreasonswhypeoplebecomevegetarians A Yes ofcourse Somepeopledonoteatmeatforreligiousorethicalreasons Forexample manyBuddhistsfollowavegetariandiet Somepeopleareallergictoproteinfrommeatsotheycan teatmeat Andsomevegetariansrefusetoeatmeatforenvironmentalconcerns Youknowmanyforestsarecutdowntoraiseanimalsformeat Thisreallyhastostop Meatornot Fourtypesofvegetarians ListeningandSpeaking Thinkingandspeaking B Tobehonest Ireallydon tseewhyeatingmeatisabigdeal Ithinkthechoicetoeatmeatornotisverypersonal Solet sfinishwhat sonourownplate Meatornot Fourtypesofvegetarians 3 ViewingandSpeaking TopicOneHowtoavoidprocessedfoodsinahealthydiet Howtoavoidprocessedfoodsinahealthydiet Viewingandunderstanding 1Ifyouaretryingtoeathealthily perhapsyouhavebeentoldtostayawayfromprocessedfoods Whilethat sgreatadvice itseemsmanypeopleareconfusedaboutwhatprocessedfoodsareandwhatmakesthemsodangeroustoone shealth Nowwatchavideoclipandcompletetheanswerstothequestionswithwhatyouhear ViewingandSpeaking 1Whatareprocessedfoods Theyarefoodsthathavebeenalteredfrom 2Whycanprocessedfoodsstayfreshformonths It sbecausefoodmanufacturersuse toprolongaproduct s 3Whataretransfats Theyareoilsinfusedwith 4Whatistrueaboutfoodlabeled transfatfree Itmaycontain oftransfatperserving 5Whatdomanufacturerssayabouthighfructosecornsyrupcomparedwithsugar Itisnutritionally sugar 6Whatarethenegativeeffectsofprocessedfoods Theynotonlycreatehealthrisks butalsomakeyou accordingtoDr DorisDay ViewingandSpeaking theirnaturalstate man madeingredients shelflife hydrogen uptoahalfgram thesameas lookold Howtoavoidprocessedfoodsinahealthydiet Viewingandunderstanding 2Watchthevideoclipagainandcompletethetablewithwhatyouhear ViewingandSpeaking ViewingandSpeaking bad good plastic cells communicateortalk cancer packagedfoods baked fat desiremore highbloodpressure Howtoavoidprocessedfoodsinahealthydiet Thinkingandspeaking 3We velearnedfromthevideoclipaboutthehealthrisksoftransfats Whatcanbedonetoreducetheconsumptionoftransfats Discussingroupsandtrytolookatthequestionfromdifferentperspectives e g thegovernment foodproducers doctors restaurants andconsumers ViewingandSpeaking Howtoavoidprocessedfoodsinahealthydiet Referenceanswers Thegovernmentshouldincreasepublicawarenessofthehealthrisksofconsumingtransfatsandadoptguidelinesregardingthesaleanduseoffoodscontainingtransfats Foodproducersneedtofindinnovativewaystoavoidusingtransfatsinfoodsandmakesurethatfoodlabelsprovideclearandaccurateinformationthathelpsconsumersmakefoodchoices Insteadofsimplyprescribingdrugs doctorsshouldtelltheirpatientstoreduceorcuttransfatsoutoftheirdiet Restaurantsshouldchangetheircookingoilstoonesthatdonotcontaintransfats Theconsumersshouldreadthenutritionfactslabelandingredientlistcarefully Theyshouldchecktheingredientlisttoavoidalltransfats Consumersshouldalsochooserestaurantsthatdonotusetransfats ViewingandSpeaking TopicTwoWhat swrongwithourfood system What swrongwithourfood system Viewingandunderstanding 1Youaregoingtowatchaspeechfrom11 year oldBirkeBaehr inwhichhedescribesthedarksideoftheindustrializedfoodsystemandpresentshisopinionsongreenandlocalizedfoodproduction Watchthevideocliptwiceandcompletethediagramwithwhatyouhear ViewingandSpeaking ViewingandSpeaking Problemswiththeindustrializedfoodsystem Possiblesolutions Conventionalfarmersuse1 madefromfossilfuelsthattheymixwiththedirttomakeplantsgrow Harmfulchemicalsaresprayedonfruitsandvegetablesto2 Foodisirradiatedsothatitcanlastlongerandtravelthousandsofmilesfromwhereit sgrownto3 Wecanbuyourfooddirectlyfrom4 orourneighborswhoweknowinreallife Wecanchooseorganicfoodevenifitis5 becauseitiswisetochoosetopaythefarmerratherthanthehospital Wecanletchildrenknowmoreaboutfoodandwhere6 chemicalfertilizers killweedsandbugs thesupermarkets localfarmers moreexpensive itreallycomesfrom What swrongwithourfood system Viewingandunderstanding 2Watchthevideoclipagainandcompletetheanswerstothequestionswithwhatyouhear ViewingandSpeaking 1Whydoconventionalfarmershavetousechemicalfertilizerstomakeplantsgrow Becausethenutrientsinthesoilhavebeenstrippedasfarmers overandoveragain 2Howdoharmfulchemicalsusedonplantspoisonourwater Whenit theyseepintotheground orrunoffinto 3WhatdoesBirkeBaehrwanttobe Hewantstobe 4WhyisJoelSalatincalleda lunaticfarmer Becauseherefusestouseanypesticides herbicides or 5WhatdoestheexampleofBirke ssix year oldcousintellus Wecan onekidatatime ViewingandSpeaking growthesamecrop rains ourwaterways anorganicfarmer geneticallymodifiedseeds makeadifference Thinkingandspeaking 3Inthespeechyou vejustwatched BirkeBaehrencouragespeopletobuyfromlocalfarmers Whatarethereasonsforbuyinglocal Workinpairstorole playaninterviewbetweenaradiopresenterandtheowneroftheGreenPumpkinRestaurant whohasbeenbuyingfromlocalfarmersforover20years Thepresenterwillasktherestaurantownerabouthis herexperienceofbuyinglocal ViewingandSpeaking What swrongwithourfood system Referenceanswers Presenter ThisisMichaelHuffman andwithustodayisMaryRoss theowneroftheGreenPumpkinRestaurantinPella whohasbeenbuyingfromlocalfarmersforover20yearsinordertoofferthefreshestfoodinherrestaurant Now Ms Ross whatpushedyoutostarttobuyfromlocalfarmers Restaurantowner OK IrememberoneofthefirstfarmersweboughtfromwasOscarJackson AndOscargreworganicfoodsandvegetables Ididn tknowaboutthewaypigswerebeingraisedintheindustrialsystemuntilIreadFastFoodNation SoIrealizedthattheporkIservedattheGreenPumpkinRestaurantmustbecomingfromthissystem SoweaskedOscarifhecouldfindaplacewherewecouldgetpasturedpork Andhefoundaplacewherepigswereraisedinthetraditionalway Thisishowwestarted ViewingandSpeaking What swrongwithourfood system Presenter Apartfromservinghigherquality tastierfood arethereotherreasonswhyyoubuylocal Restaurantowner Yes ofcourse Youknowlocalfarmershavealwayshadtroublecompetingwithbiggerfactoryfarms IhopethatIcouldhelpthembybuyingfromthem Ialsoencourageotherrestaurantstobuyfromlocalfarmers Presenter Thismustmeanalottolocalfarmers Restaurantowner Ihopeso AndIhavetomentiontheenvironmentalbenefitsofbuyinglocal Youknowtheaveragedistancethatfoodtravelsbeforeitreachesourplateis1 500miles Theshippingoffoodoverlongdistanceshasadamagingeffectonourenvironment Sowhenwebuylocal wearenotsimplyhelpingourhealth wearealsohelpingtheenvironment ViewingandSpeaking What swrongwithourfood system Presenter Whatisthebiggestchallengeyouhavefacedsofar Restaurantowner Atthebeginning itwasn teasytobuylocalbecausetherewasnosysteminplacetoevenfindlocalfarmerstobuyfromandthentogetthefoodintothecity ButonceIfoundlocalfarmersandbeganusingtheirproductsinmyrestaurant Ifoundthepracticetobegoodnotjustforthefarmers butformyrestaurant too Manycustomerscametotherestaurantforlocallygrownfood Presenter That sgreat Iwishmoreofuswillrealizethebenefitsofbuyinglocal Ms Ross thankyousomuchforyourtime Restaurantowner I veenjoyeditverymuch ViewingandSpeaking What swrongwithourfood system 4 Project Conductingasurveyonfoodandhealth Aspartofthecampus widecampaigntopromotehealthyeatingamongcollegestudents yourclassplanstoconductasurveyaboutcollegestudents knowledge viewsandbeliefsaboutfoodandtheirbehaviorrelatedtofoodandhealth Workingroupsandprepareanoralreportofyoursurveyfindings Project Step1FormgroupsFormgroupsoffivetosixstudents Project Conductingasurveyonfoodandhealth Step2DesignthesurveyDesignasurveyoncollegestudents knowledge beliefsandbehaviorrelatedtofoodandhealth Youmayaskquestionsaboutthetopicsthathavebeencoveredinthisunit includinggeneticallymodifiedfood organicfoodlabels vegetarians processedfood etc Thefollowingquestionsareforyourreference Project Conductingasurveyonfoodandhealth Howmuchthoughthaveyougiventothehealthfulnessofthefoodyouconsume Whatimpactsyourdecisiontobuyfood Whatdoyouthinkaboutprocessedfood Doyoucheckthefoodlabelsbeforebuyingfood Doyouregularlybuyfoodthatislabeledas natural organic or local Whatisyourattitudetowardgeneticallymodifiedfood Doyouthinkthatweshouldeatlessmeatorevennomeat Whatsourceofinformationwouldyoutrustthemostaboutfoodsafety AreyouconfidentinthesafetyofthefoodsupplyinChina Project Conductingasurveyonfoodandhealth Step3ConductthesurveyConductthesurveyeitheronlineoronpaper Project Conductingasurveyonfoodandhealth Step4AnalyzethesurveyresultsAnalyzeanddiscussthesurveyresultswithyourgroupmembers Youmaydrawsomegraphsordiagramstoshowtheresultsvividlyandusetheexpressionsyou velearnedin Truthaboutorganicfoodlabels whenyoudescribethedata Project Conductingasurveyonfoodandhealth Step5Reportthesurveyfindings Project Conductingasurveyonfoodandhealth Deliveranoralreportofyoursurveyfindings Youroralreportneedstoincludeanintroduction abodyandaconclusion Intheintroduction youneedtoexplainwhyyouconductedthesurvey specifyhowdatawerecollectedandgiveinformationaboutrespondents Inthebody youneedtoreporttheresultsinawell organizedway Remembertoexplaintheresultsanddiscusstheirimplicationswhennecessary Summarizeyourfindingsintheconclusion Youmayalsoencouragetheaudiencetoaskquestionsaboutyoursurveyattheendofyourreport Project Conductingasurveyonfoodandhealth UsefulexpressionsIntroducingthereport Theaim purposeofthisreportistopresent