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1、Unit2SectionAIronandtheEffectsofExerciseI.Warm-upActivity1.TopicDiscussioni.Student’sDiscussion1)Whatisthespeaker’sproblemwithexercise?―Hefeelstiredwhenheexercisestoomuchandhealsofeelsguiltybecausenomatterhowmuchheexerciseshefeelsit’snotenough.2)Whatarethesuggesti
2、onstheexerciseexpertsgavetothespeaker?―1)Exercisethreetimesaweekforatleast20minutesatatime.2)Doexercisesthatworkthelargemusclegroupslikewalking.3)Use“lifestyle”exercise3)Doyouhaveanyexerciseproblems―open-ended.ii.Teacher’sSummaryExercisethreetimesaweekforatleast20
3、minutesatatime.Choosemoderate-intensityexerciseswhenpossible.Theyarebestforaavoidinginjuryandburnout.Doexercisesthatworkthelargemusclegroupslikewalking.Using“lifestyle”exercisesintheprogramalsomakestheprogrameasiertomaintain.Lifestyleexercisesincludebicycling,clim
4、bingstairs,swimming,andbriskwalking.Theseexerciseswork.2.QuestionsontheTopicandthePassage1)Ifawomansuffersfromirondeficiency,whatcanshedotobounceback?―Consumeadditionalmeatortakeironsupplements.2)Whyarewomenofchildbearingagemorelikelytosufferfromirondeficiency?―Be
5、causetheyhaveamonthlybleeding.3)Howdoesexercisecauseirondeficiency?―Throughavarietyofmechanisms.Forexample,someironislostinsweat,andintenseenduranceexerciseissometimesassociatedwiththebleedingofthedigestivesystem.4)Howmanystagesdoesirondeficiencygothrough?―Three.5
6、)Whatdoesitmeanswhenyouareinthethirdstageofirondeficiency?―Youareintrouble.Yourironreservesgotozeroandyoumayfeelweak,tiredandoutofbreath.II.BackgroundInformation1.PurdueUniversityisacoeducational,state-assisteduniversityinIndianan,US.Foundedin1869andnamedafterbene
7、factorJohnPurdue,theuniversityisoneofthenation’sleadingresearchinstitutionswithareputationofexcellentandaffordableeducations.Buildinguponhistoricalstrengthsinengineeringandagriculture,theWestLafayettecampusoftheuniversitycurrentlyoffers7,400courses,inmorethan500un
8、dergraduatemajorsandspecializationsintheschoolsofAgriculture,ConsumerandFamilySciences,Educations,Engineering,HealthSciences,LiberalArts,Management,Nurs
