搜索
国际交流英语视听说国际交流英语视听说Unit8FoodConcernsBook4国际交流英语视听说国际交流英语视听说ThinkandDiscussViewingtheWorldExploringtheThemeAnalyticalListeningSharingYourIdeasEngagingFurtherListeningContent国际交流英语视听说ThinkandDiscussUnit8FoodConcernsThinkandDiscussQuestionsThousandsofredpeppersfromMongoliadryinthesun.1.Haseatingfoodevermadeyouorsomeoneyouknowsick?Whattypeoffoodcausedtheproblem?2.Whomakessurethefoodyoueatissafe?Howdoyouthinkfoodsafetycouldbeimproved?ThinkandDiscussExampleAnswersYes,Ioncegotsickaftereatingporkwithnoodlesatanoodleshop.Mybrotheroncegotverysickaftereatingrawvegetablesalad.Questions1.Haseatingfoodevermadeyouorsomeoneyouknowsick?Whattypeoffoodcausedtheproblem?ThinkandDiscussExampleAnswersTherearemanypeopleinvolvedinmakingsureourfoodissafe.Forexample,farmersdecidehowtogrowfoodandgovernmentagenciesinspectfood.Perhapsfoodsafetycouldbeimprovedifmorepeoplewhohandleandcookthefoodwereeducatedtousesafecookingandsanitationmethods,orifthereweremorepeopleinspectingandtestingfoodforsafety.Questions2.Whomakessurethefoodyoueatissafe?Howdoyouthinkfoodsafetycouldbeimproved?国际交流英语视听说ExploringtheThemeUnit8FoodConcernsExploringtheThemeA|Lookatthephotosandreadthecaptions.Thendiscussthequestions.StudentchefspreparevegetablesduringacookingclassinChina.FoodConcernsExploringtheThemeAroundtheworld,disease-resistantfoodshaveimprovedthequalityoflifeformanypeople.Someexpertsbelievethatgenetically-modified(GM)foodscouldtransformagriculturethroughouttheworld.FoodConcernsExploringtheThemeEricAndersonchecksonthechickensathisfarminArkansas.Heusesantibiotics—drugsthatkillbacteria—tokeephisbirdshealthy.Consumersareworriedthattheuseofantibioticsandchemicalsintheirfoodcouldcausehealthproblemsinthefuture.FoodConcernsExploringtheThemeWorkersshoveltonsofsoybeansonashipinVitória,Brazil.Withfoodpricesrisingsharply,theworldisstrugglingtofeeditscitizens.Scientistsandgovernmentsaretryingtofindnewwaystogrowtheworld’sfoodsupply.FoodConcernsExploringtheThemeDiscussthequestions.1.Howcanscientistsimprovethewaywegrowplantsandthewayweraiseanimalsforfood?2.Whataresomereasonsforrisingfoodpricesaroundtheglobe?3.Wouldyoueatfoodthathasbeenalteredtoincludeamedicineoravitamin?Whyorwhynot?FoodConcernsExploringtheThemeExampleAnswersScientistscandevelopsaferalternativestothechemicalssomefarmersusetogrowfood.Theycanalsosetstandardsforthewayanimalsareraisedsothattheanimalscanbehealthywithoutantibiotics.Scientistscanalsocontinuetodevelophigh-yieldgrainsthatproducemorefoodperacreofland.FoodConcerns1.Howcanscientistsimprovethewaywegrowplantsandthewayweraiseanimalsforfood?ExploringtheThemeExampleAnswersRisingfoodpricesmightbetheresultofspeculationinfuturesmarkets.Climatechangemightalsoplayarolesincemanypartsoftheworldnowexperienceeitherdroughtorfloodingonaregularbasis.Iflessfoodisproduced,thepricewillrise.FoodConcerns2.Whataresomereasonsforrisingfoodpricesaroundtheglobe?ExploringtheThemeExampleAnswer1Iwouldeatfoodthathasbeenalteredtocontainavitaminoramedicinebecauseourknowledgeofgeneticshasmadesuchalterationspossible,andtheadditionsmightbeadvantageoustome.FoodConcerns3.Wouldyoueatfoodthathasbeenalteredtoincludeamedicineoravitamin?Whyorwhynot?ExploringtheThemeExampleAnswer2IwouldnoteatfoodthathasbeenalteredtocontainavitaminoramedicinebecauseIdon’tknowofanygoodresearchonthelong-termeffectsofeatinggenetically-modifiedfoods.FoodConcerns3.Wouldyoueatfoodthathasbeenalteredtoincludeamedicineoravitamin?Whyorwhynot?国际交流英语视听说AnalyticalListeningUnit8FoodConcernsAnalyticalListeningListening1dressingn.（放在生的蔬菜或色拉上面的）调料，调味酱canolan.（用作动物饲料及用来榨食用油的）油菜offsetv.补偿，抵消beta-carotenen.β-胡萝卜素deficiencyn.不足，缺乏skepticn.持怀疑态度的人diminishv.（使）减少AnalyticalListeningListening1WorldHealthOrganization(WHO):anagencyoftheUnitedNations.Itwascreatedin1948topromoteinternationalcooperationonimprovinghealthconditionsaroundtheworld.Itfocusesonbasichealthissues,especiallyindevelopingcountries,aswellascoordinatinginternationalresponsestohealththreatslikediseaseepidemics.世界卫生组织AnalyticalListeningListening1Thesetwocohosalmon(银鲑鱼)are18monthsold,butonewasgeneticallymodifiedtobelargerthantheother.AnalyticalListeningBrainstorming.Bygeneticallymodifyingplantsandanimals,scientiststrytoimprovethemforconsumers.Brainstormsomeideasforimprovementsscientistscouldmaketotheplantsandanimalslistedinthechart.Addtwoorthreemoreofyourownideastothechart.Listening1IdeasforImprovementRiceTheycouldcreatericewithvitaminsinit.ApplesSalmonCattleAnalyticalListeningListening1ExampleAnswersRice:•Theycouldcreatericewithvitaminsinit.•Theycouldcreatericewithmoreproteininit.Apples:•Theycouldcreateapplesthatdon’tgetbruisedeasily.•Theycouldcreateapplesthatlastlongerinstorage.Salmon:•Theycouldcreatesalmonthattastebetter.•Theycouldcreatesalmonthatcontainmoredietaryminerals.Cattle:•Theycouldcreatecattlethatdon’tgetsickeasily.•Theycouldcreatecattlethatdon’tneedtodrinkasmuchwater.AnalyticalListeningA|ListeningforMainIdeas.Readthequestionsandanswerchoices.ThenlistentoaPowerPointlectureaboutgenetically-modifiedfoodsandchoosethecorrectanswers.APowerPointLectureListening11.In